The document provides an introduction to the concepts of big data and how it can be analyzed. It discusses how traditional tools cannot handle large data files exceeding gigabytes in size. It then introduces the concepts of distributed computing using MapReduce and the Hadoop framework. Hadoop makes it possible to easily store and process very large datasets across a cluster of commodity servers. It also discusses programming interfaces like Hive and Pig that simplify writing MapReduce programs without needing to use Java.
This document provides an introduction to big data and Hadoop. It discusses what big data is, characteristics of big data like volume, velocity and variety. It then introduces Hadoop as a framework for storing and analyzing big data, describing its main components like HDFS and MapReduce. The document outlines a typical big data workflow and gives examples of big data use cases. It also provides an overview of setting up Hadoop on a single node, including installing Java, configuring SSH, downloading and extracting Hadoop files, editing configuration files, formatting the namenode, starting Hadoop daemons and testing the installation.
Introductory Big Data presentation given during one of our Sizing Servers Lab user group meetings. The presentation is targeted towards an audience of about 20 SME employees. It also contains a short description of the work packages for our BIg Data project proposal that was submitted in March.
This document discusses real-time big data applications and provides a reference architecture for search, discovery, and analytics. It describes combining analytical and operational workloads using a unified data model and operational database. Examples are given of organizations using this approach for real-time search, analytics and continuous adaptation of large and diverse datasets.
This document provides an overview of big data concepts, including NoSQL databases, batch and real-time data processing frameworks, and analytical querying tools. It discusses scalability challenges with traditional SQL databases and introduces horizontal scaling with NoSQL systems like key-value, document, column, and graph stores. MapReduce and Hadoop are described for batch processing, while Storm is presented for real-time processing. Hive and Pig are summarized as tools for running analytical queries over large datasets.
The document provides an introduction to big data and Hadoop. It defines big data as large datasets that cannot be processed using traditional computing techniques due to the volume, variety, velocity, and other characteristics of the data. It discusses traditional data processing versus big data and introduces Hadoop as an open-source framework for storing, processing, and analyzing large datasets in a distributed environment. The document outlines the key components of Hadoop including HDFS, MapReduce, YARN, and Hadoop distributions from vendors like Cloudera and Hortonworks.
Hadoop is an open-source framework for distributed storage and processing of large datasets across clusters of commodity hardware. It addresses limitations in traditional RDBMS for big data by allowing scaling to large clusters of commodity servers, high fault tolerance, and distributed processing. The core components of Hadoop are HDFS for distributed storage and MapReduce for distributed processing. Hadoop has an ecosystem of additional tools like Pig, Hive, HBase and more. Major companies use Hadoop to process and gain insights from massive amounts of structured and unstructured data.
This was presented at NHN on Jan. 27, 2009.
It introduces Big Data, its storages, and its analyses.
Especially, it covers MapReduce debates and hybrid systems of RDBMS and MapReduce.
In addition, in terms of Schema-Free, various non-relational data storages are explained.
This document provides an overview of Hadoop and how it can be used for data consolidation, schema flexibility, and query flexibility compared to a relational database. It describes the key components of Hadoop including HDFS for storage and MapReduce for distributed processing. Examples of industry use cases are also presented, showing how Hadoop enables affordable long-term storage and scalable processing of large amounts of structured and unstructured data.
Big data refers to datasets that are too large to be managed by traditional database tools. It is characterized by volume, velocity, and variety. Hadoop is an open-source software framework that allows distributed processing of large datasets across clusters of computers. It works by distributing storage across nodes as blocks and distributing computation via a MapReduce programming paradigm where nodes process data in parallel. Common uses of big data include analyzing social media, sensor data, and using machine learning on large datasets.
The document provides information about Hadoop, its core components, and MapReduce programming model. It defines Hadoop as an open source software framework used for distributed storage and processing of large datasets. It describes the main Hadoop components like HDFS, NameNode, DataNode, JobTracker and Secondary NameNode. It also explains MapReduce as a programming model used for distributed processing of big data across clusters.
Learn Big data and Hadoop online at Easylearning Guru. We are offer Instructor led online training and Life Time LMS (Learning Management System). Join Our Free Live Demo Classes of Big Data Hadoop .
The document discusses big data, including what it is, sources of big data like social media and stock exchange data, and the three Vs of big data - volume, velocity, and variety. It then discusses Hadoop, the open-source framework for distributed storage and processing of large datasets across clusters of computers. Key components of Hadoop include HDFS for distributed storage, MapReduce for distributed computation, and YARN which manages computing resources. The document also provides overviews of Pig and Jaql, programming languages used for analyzing data in Hadoop.
Vikram Andem Big Data Strategy @ IATA Technology Roadmap
Vikram Andem, Senior Manager, United Airlines, A case for Bigdata Program and Strategy @ IATA Technology Roadmap 2014, October 13th, 2014, Montréal, Canada
- Hadoop is a framework for managing and processing big data distributed across clusters of computers. It allows for parallel processing of large datasets.
- Big data comes from various sources like customer behavior, machine data from sensors, etc. It is used by companies to better understand customers and target ads.
- Hadoop uses a master-slave architecture with a NameNode master and DataNode slaves. Files are divided into blocks and replicated across DataNodes for reliability. The NameNode tracks where data blocks are stored.
What is Bigdata
Sources of Bigdata
What can be done with Big data?
Handling Bigdata
MapReduce
What is Hadoop?
Why Hadoop is Useful?
Other big data use cases
1. Hadoop is a software platform that allows for the distributed storage and processing of extremely large datasets across clusters of commodity hardware.
2. It addresses problems like parallel processing, fault tolerance, and scalability to reliably handle data at the petabyte scale.
3. Using Hadoop's core components - the Hadoop Distributed File System (HDFS) for storage and MapReduce for processing - it can efficiently distribute data and computation across large clusters to enable analysis of big data.
1. Big data refers to large and complex datasets that are difficult to process using traditional database and software techniques.
2. Hadoop is an open-source software platform that allows distributed processing of large datasets across clusters of computers. It solves the problems of big data by dividing it across nodes and processing it in parallel using MapReduce.
3. Hadoop provides reliable and scalable storage of big data using HDFS and efficient parallel processing of that data using MapReduce, allowing organizations to gain insights from large and diverse datasets.
Hadoop is a software platform that can reliably store and process extremely large datasets in a distributed, scalable, and economical manner. It distributes data and processing tasks across clusters of commodity hardware. Hadoop uses HDFS for reliable storage of large files across nodes, and MapReduce for efficiently processing data in parallel on the nodes where data is located. Together, HDFS and MapReduce allow users to quickly write distributed systems that can handle petabytes of data and complex queries.
1) The document discusses big data, including how it is defined, challenges of working with large datasets, and solutions like Hadoop.
2) It explains that big data refers to datasets that are too large to be handled by traditional database tools due to their scale, diversity and complexity. Hadoop is presented as a solution for reliably storing and processing big data across clusters of commodity servers.
3) Benefits of analyzing big data are outlined, such as gaining insights, competitive advantages and better decision making. Applications of big data analytics are also mentioned in areas like healthcare, security, manufacturing and more.
Introduction to Cloud computing and Big Data-Hadoop
Cloud Computing Evolution
Why Cloud Computing needed?
Cloud Computing Models
Cloud Solutions
Cloud Jobs opportunities
Criteria for Big Data
Big Data challenges
Technologies to process Big Data- Hadoop
Hadoop History and Architecture
Hadoop Eco-System
Hadoop Real-time Use cases
Hadoop Job opportunities
Hadoop and SAP HANA integration
Summary
Abhishek Roy will teach a master class on Big Data and Hadoop. The class will cover what Big Data is, the history and background of Hadoop, how to set up and use Hadoop, and tools like HDFS, MapReduce, Pig, Hive, Mahout, Sqoop, Flume, Hue, Zookeeper and Impala. The class will also discuss real world use cases and the growing market for Big Data tools and skills.
Introduction to Big Data and NoSQL.
This presentation was given to the Master DBA course at John Bryce Education in Israel.
Work is based on presentations by Michael Naumov, Baruch Osoveskiy, Bill Graham and Ronen Fidel.
This document discusses data ingestion with Spark. It provides an overview of Spark, which is a unified analytics engine that can handle batch processing, streaming, SQL queries, machine learning and graph processing. Spark improves on MapReduce by keeping data in-memory between jobs for faster processing. The document contrasts data collection, which occurs where data originates, with data ingestion, which receives and routes data, sometimes coupled with storage.
Big data comes from many sources like social media, e-commerce sites, and stock markets. Hadoop is an open-source framework that allows processing and storing large amounts of data across clusters of computers. It uses HDFS for storage and MapReduce for processing. HDFS stores data across cluster nodes and is fault tolerant. MapReduce analyzes data through parallel map and reduce functions. Sqoop imports and exports data between Hadoop and relational databases.
Slides used for the keynote at the even Big Data & Data Science http://eventos.citius.usc.es/bigdata/
Some slides are borrowed from random hadoop/big data presentations
Concepts, use cases and principles to build big data systems (1)
1) Introduction to the key Big Data concepts
1.1 The Origins of Big Data
1.2 What is Big Data ?
1.3 Why is Big Data So Important ?
1.4 How Is Big Data Used In Practice ?
2) Introduction to the key principles of Big Data Systems
2.1 How to design Data Pipeline in 6 steps
2.2 Using Lambda Architecture for big data processing
3) Practical case study : Chat bot with Video Recommendation Engine
4) FAQ for student
LinkedIn is a large professional social network with 50 million users from around the world. It faces big data challenges at scale, such as caching a user's third degree network of up to 20 million connections and performing searches across 50 million user profiles. LinkedIn uses Hadoop and other scalable architectures like distributed search engines and custom graph engines to solve these problems. Hadoop provides a scalable framework to process massive amounts of user data across thousands of nodes through its MapReduce programming model and HDFS distributed file system.
This presentation Simplify the concepts of Big data and NoSQL databases & Hadoop components.
The Original Source:
http://zohararad.github.io/presentations/big-data-introduction/
The document provides an introduction to big data and Hadoop. It defines big data as large datasets that are difficult to process using traditional software tools due to their size and complexity. It describes the characteristics of big data using the original 3Vs model (volume, velocity, variety) as well as additional attributes. The text then explains the architecture and components of Hadoop, the open-source framework for distributed storage and processing of big data, including HDFS, MapReduce, and other related tools. It provides an overview of how Hadoop addresses the challenges of big data through scalable and fault-tolerant distributed processing of data across commodity hardware.
This document provides an overview of big data and Hadoop. It defines big data as large volumes of structured, semi-structured and unstructured data that is growing exponentially and is too large for traditional databases to handle. It discusses the 4 V's of big data - volume, velocity, variety and veracity. The document then describes Hadoop as an open-source framework for distributed storage and processing of big data across clusters of commodity hardware. It outlines the key components of Hadoop including HDFS, MapReduce, YARN and related modules. The document also discusses challenges of big data, use cases for Hadoop and provides a demo of configuring an HDInsight Hadoop cluster on Azure.
This document provides an introduction to big data and Hadoop. It discusses what big data is, characteristics of big data like volume, velocity and variety. It then introduces Hadoop as a framework for storing and analyzing big data, describing its main components like HDFS and MapReduce. The document outlines a typical big data workflow and gives examples of big data use cases. It also provides an overview of setting up Hadoop on a single node, including installing Java, configuring SSH, downloading and extracting Hadoop files, editing configuration files, formatting the namenode, starting Hadoop daemons and testing the installation.
Introductory Big Data presentation given during one of our Sizing Servers Lab user group meetings. The presentation is targeted towards an audience of about 20 SME employees. It also contains a short description of the work packages for our BIg Data project proposal that was submitted in March.
This document discusses real-time big data applications and provides a reference architecture for search, discovery, and analytics. It describes combining analytical and operational workloads using a unified data model and operational database. Examples are given of organizations using this approach for real-time search, analytics and continuous adaptation of large and diverse datasets.
This document provides an overview of big data concepts, including NoSQL databases, batch and real-time data processing frameworks, and analytical querying tools. It discusses scalability challenges with traditional SQL databases and introduces horizontal scaling with NoSQL systems like key-value, document, column, and graph stores. MapReduce and Hadoop are described for batch processing, while Storm is presented for real-time processing. Hive and Pig are summarized as tools for running analytical queries over large datasets.
The document provides an introduction to big data and Hadoop. It defines big data as large datasets that cannot be processed using traditional computing techniques due to the volume, variety, velocity, and other characteristics of the data. It discusses traditional data processing versus big data and introduces Hadoop as an open-source framework for storing, processing, and analyzing large datasets in a distributed environment. The document outlines the key components of Hadoop including HDFS, MapReduce, YARN, and Hadoop distributions from vendors like Cloudera and Hortonworks.
Hadoop is an open-source framework for distributed storage and processing of large datasets across clusters of commodity hardware. It addresses limitations in traditional RDBMS for big data by allowing scaling to large clusters of commodity servers, high fault tolerance, and distributed processing. The core components of Hadoop are HDFS for distributed storage and MapReduce for distributed processing. Hadoop has an ecosystem of additional tools like Pig, Hive, HBase and more. Major companies use Hadoop to process and gain insights from massive amounts of structured and unstructured data.
This was presented at NHN on Jan. 27, 2009.
It introduces Big Data, its storages, and its analyses.
Especially, it covers MapReduce debates and hybrid systems of RDBMS and MapReduce.
In addition, in terms of Schema-Free, various non-relational data storages are explained.
This document provides an overview of Hadoop and how it can be used for data consolidation, schema flexibility, and query flexibility compared to a relational database. It describes the key components of Hadoop including HDFS for storage and MapReduce for distributed processing. Examples of industry use cases are also presented, showing how Hadoop enables affordable long-term storage and scalable processing of large amounts of structured and unstructured data.
Big data refers to datasets that are too large to be managed by traditional database tools. It is characterized by volume, velocity, and variety. Hadoop is an open-source software framework that allows distributed processing of large datasets across clusters of computers. It works by distributing storage across nodes as blocks and distributing computation via a MapReduce programming paradigm where nodes process data in parallel. Common uses of big data include analyzing social media, sensor data, and using machine learning on large datasets.
The document provides information about Hadoop, its core components, and MapReduce programming model. It defines Hadoop as an open source software framework used for distributed storage and processing of large datasets. It describes the main Hadoop components like HDFS, NameNode, DataNode, JobTracker and Secondary NameNode. It also explains MapReduce as a programming model used for distributed processing of big data across clusters.
Learn Big data and Hadoop online at Easylearning Guru. We are offer Instructor led online training and Life Time LMS (Learning Management System). Join Our Free Live Demo Classes of Big Data Hadoop .
The document discusses big data, including what it is, sources of big data like social media and stock exchange data, and the three Vs of big data - volume, velocity, and variety. It then discusses Hadoop, the open-source framework for distributed storage and processing of large datasets across clusters of computers. Key components of Hadoop include HDFS for distributed storage, MapReduce for distributed computation, and YARN which manages computing resources. The document also provides overviews of Pig and Jaql, programming languages used for analyzing data in Hadoop.
Vikram Andem Big Data Strategy @ IATA Technology Roadmap IT Strategy Group
Vikram Andem, Senior Manager, United Airlines, A case for Bigdata Program and Strategy @ IATA Technology Roadmap 2014, October 13th, 2014, Montréal, Canada
- Hadoop is a framework for managing and processing big data distributed across clusters of computers. It allows for parallel processing of large datasets.
- Big data comes from various sources like customer behavior, machine data from sensors, etc. It is used by companies to better understand customers and target ads.
- Hadoop uses a master-slave architecture with a NameNode master and DataNode slaves. Files are divided into blocks and replicated across DataNodes for reliability. The NameNode tracks where data blocks are stored.
What is Bigdata
Sources of Bigdata
What can be done with Big data?
Handling Bigdata
MapReduce
What is Hadoop?
Why Hadoop is Useful?
Other big data use cases
1. Hadoop is a software platform that allows for the distributed storage and processing of extremely large datasets across clusters of commodity hardware.
2. It addresses problems like parallel processing, fault tolerance, and scalability to reliably handle data at the petabyte scale.
3. Using Hadoop's core components - the Hadoop Distributed File System (HDFS) for storage and MapReduce for processing - it can efficiently distribute data and computation across large clusters to enable analysis of big data.
1. Big data refers to large and complex datasets that are difficult to process using traditional database and software techniques.
2. Hadoop is an open-source software platform that allows distributed processing of large datasets across clusters of computers. It solves the problems of big data by dividing it across nodes and processing it in parallel using MapReduce.
3. Hadoop provides reliable and scalable storage of big data using HDFS and efficient parallel processing of that data using MapReduce, allowing organizations to gain insights from large and diverse datasets.
Hadoop is a software platform that can reliably store and process extremely large datasets in a distributed, scalable, and economical manner. It distributes data and processing tasks across clusters of commodity hardware. Hadoop uses HDFS for reliable storage of large files across nodes, and MapReduce for efficiently processing data in parallel on the nodes where data is located. Together, HDFS and MapReduce allow users to quickly write distributed systems that can handle petabytes of data and complex queries.
1) The document discusses big data, including how it is defined, challenges of working with large datasets, and solutions like Hadoop.
2) It explains that big data refers to datasets that are too large to be handled by traditional database tools due to their scale, diversity and complexity. Hadoop is presented as a solution for reliably storing and processing big data across clusters of commodity servers.
3) Benefits of analyzing big data are outlined, such as gaining insights, competitive advantages and better decision making. Applications of big data analytics are also mentioned in areas like healthcare, security, manufacturing and more.
Introduction to Cloud computing and Big Data-HadoopNagarjuna D.N
Cloud Computing Evolution
Why Cloud Computing needed?
Cloud Computing Models
Cloud Solutions
Cloud Jobs opportunities
Criteria for Big Data
Big Data challenges
Technologies to process Big Data- Hadoop
Hadoop History and Architecture
Hadoop Eco-System
Hadoop Real-time Use cases
Hadoop Job opportunities
Hadoop and SAP HANA integration
Summary
Hadoop Master Class : A concise overviewAbhishek Roy
Abhishek Roy will teach a master class on Big Data and Hadoop. The class will cover what Big Data is, the history and background of Hadoop, how to set up and use Hadoop, and tools like HDFS, MapReduce, Pig, Hive, Mahout, Sqoop, Flume, Hue, Zookeeper and Impala. The class will also discuss real world use cases and the growing market for Big Data tools and skills.
Introduction to Big Data and NoSQL.
This presentation was given to the Master DBA course at John Bryce Education in Israel.
Work is based on presentations by Michael Naumov, Baruch Osoveskiy, Bill Graham and Ronen Fidel.
This document discusses data ingestion with Spark. It provides an overview of Spark, which is a unified analytics engine that can handle batch processing, streaming, SQL queries, machine learning and graph processing. Spark improves on MapReduce by keeping data in-memory between jobs for faster processing. The document contrasts data collection, which occurs where data originates, with data ingestion, which receives and routes data, sometimes coupled with storage.
Big data comes from many sources like social media, e-commerce sites, and stock markets. Hadoop is an open-source framework that allows processing and storing large amounts of data across clusters of computers. It uses HDFS for storage and MapReduce for processing. HDFS stores data across cluster nodes and is fault tolerant. MapReduce analyzes data through parallel map and reduce functions. Sqoop imports and exports data between Hadoop and relational databases.
Slides used for the keynote at the even Big Data & Data Science http://eventos.citius.usc.es/bigdata/
Some slides are borrowed from random hadoop/big data presentations
Concepts, use cases and principles to build big data systems (1)Trieu Nguyen
1) Introduction to the key Big Data concepts
1.1 The Origins of Big Data
1.2 What is Big Data ?
1.3 Why is Big Data So Important ?
1.4 How Is Big Data Used In Practice ?
2) Introduction to the key principles of Big Data Systems
2.1 How to design Data Pipeline in 6 steps
2.2 Using Lambda Architecture for big data processing
3) Practical case study : Chat bot with Video Recommendation Engine
4) FAQ for student
LinkedIn is a large professional social network with 50 million users from around the world. It faces big data challenges at scale, such as caching a user's third degree network of up to 20 million connections and performing searches across 50 million user profiles. LinkedIn uses Hadoop and other scalable architectures like distributed search engines and custom graph engines to solve these problems. Hadoop provides a scalable framework to process massive amounts of user data across thousands of nodes through its MapReduce programming model and HDFS distributed file system.
Bigdataissueschallengestoolsngoodpractices 141130054740-conversion-gate01Soujanya V
The document discusses big data issues, challenges, tools and good practices. It defines big data as large amounts of data from various sources that requires new technologies to extract value. Common big data properties include volume, velocity, variety and value. Hadoop is presented as an important tool for big data, using a distributed file system and MapReduce framework to process large datasets in parallel across clusters of servers. Good practices for big data include creating data dimensions, integrating structured and unstructured data, and improving data quality.
Big data refers to large, complex datasets that are difficult to process using traditional methods. This document discusses three examples of real-world big data challenges and their solutions. The challenges included storage, analysis, and processing capabilities given hardware and time constraints. Solutions involved switching databases, using Hadoop/MapReduce, and representing complex data structures to enable analysis of terabytes of ad serving data. Flexibility and understanding domain needs were key to feasible versus theoretical solutions.
The Six pillars for Building big data analytics ecosystemstaimur hafeez
The document discusses the six pillars for building big data analytics ecosystems: storage, processing, analytics, user interfaces, deployment, and future directions. It provides an overview of approaches for each pillar, popular systems, challenges, and how the pillars form a taxonomy to guide organizations in building their ecosystems. Key components discussed include HDFS, MapReduce, YARN, visualizations, product vs service deployment models, and ensuring the components work efficiently together.
DevOps for Data Engineers - Automate Your Data Science Pipeline with Ansible,...Mihai Criveti
- The document discusses automating data science pipelines with DevOps tools like Ansible, Packer, and Kubernetes.
- It covers obtaining data, exploring and modeling data, and how to automate infrastructure setup and deployment with tools like Packer to build machine images and Ansible for configuration management.
- The rise of DevOps and its cultural aspects are discussed as well as how tools like Packer, Ansible, Kubernetes can help automate infrastructure and deploy machine learning models at scale in production environments.
Things Every Oracle DBA Needs to Know about the Hadoop EcosystemZohar Elkayam
Session from BGOUG I presented in June, 2016
Big data is one of the biggest buzzword in today's market. Terms like Hadoop, HDFS, YARN, Sqoop, and non-structured data has been scaring DBA's since 2010 - but where does the DBA team really fit in?
In this session, we will discuss everything database administrators and database developers needs to know about big data. We will demystify the Hadoop ecosystem and explore the different components. We will learn how HDFS and MapReduce are changing the data world, and where traditional databases fits into the grand scheme of things. We will also talk about why DBAs are the perfect candidates to transition into Big Data and Hadoop professionals and experts.
Ever wondered about the full form of Chat GPT?🤔 It stands for Chat Generative Pre-Trained Transformer. For those diving into the world of Transformers, I've been using this PPT during my lectures📚. Thought it might be handy for some of you too! Check it out and let me know what you think!🌟
How to validate a model?
What is a best model ?
Types of data
Types of errors
The problem of over fitting
The problem of under fitting
Bias Variance Tradeoff
Cross validation
K-Fold Cross validation
Boot strap Cross validation
The document provides notes on neural networks and regularization from a data science training course. It discusses issues like overfitting when neural networks have too many hidden layers. Regularization helps address overfitting by adding a penalty term to the cost function for high weights, effectively reducing the impact of weights. This keeps complex models while preventing overfitting. The document also covers activation functions like sigmoid, tanh, and ReLU, noting advantages of tanh and ReLU over sigmoid for addressing vanishing gradients and computational efficiency. Code examples demonstrate applying regularization and comparing models.
This document provides an overview of gradient boosting methods. It discusses that boosting is an ensemble method that builds models sequentially by focusing on misclassified examples from previous models. The gradient boosting algorithm updates weights based on misclassification rates and gradients. Key parameters for gradient boosting models include the number of trees, interaction depth, minimum observations per node, shrinkage, bag fraction, and train fraction. Tuning these hyperparameters is important for achieving the right balance of underfitting and overfitting.
This document provides an overview of neural networks in R. It begins with recapping logistic regression and decision boundaries. It then discusses how neural networks allow for non-linear decision boundaries through the use of intermediate outputs and multiple logistic regression models. Code examples are provided to demonstrate building neural networks with intermediate outputs to classify data with non-linear decision boundaries.
The document discusses decision trees, which are a type of predictive modeling that can be used for segmentation. It provides examples of how to segment a population of customers into subgroups based on attributes like employment status and income. The key aspects of decision trees covered include how they are constructed from a root node down to leaf nodes, different algorithms for building decision trees, measures for determining the best attributes to split on like information gain, and techniques for validating and pruning trees to avoid overfitting.
This document provides a step-by-step guide to learning R. It begins with the basics of R, including downloading and installing R and R Studio, understanding the R environment and basic operations. It then covers R packages, vectors, data frames, scripts, and functions. The second section discusses data handling in R, including importing data from external files like CSV and SAS files, working with datasets, creating new variables, data manipulations, sorting, removing duplicates, and exporting data. The document is intended to guide users through the essential skills needed to work with data in R.
1. The document outlines the steps in building a credit risk model, including defining the objective, applying exclusions, determining the observation and performance windows, defining "bad" accounts, performing segmentation, selecting variables, building the regression model, and validating and recalibrating the model.
2. Segmentation involves dividing the population into subgroups for separate modeling in order to better separate "good" and "bad" accounts. Common segmentation variables include product type, account tenure, credit file thickness, and portfolio type.
3. Determining the "bad" definition and performance window involves analysis of account roll rates and waterfalls to identify what constitutes a "bad"
Introduction to Analytics
Introduction to SAS
Introduction to Satistics
Introduction to Predictive Modeling
Introduction to Forecasting
Introduction to Bigdata
This document provides a step-by-step guide to learning SAS. It begins with an introduction to SAS and its windowing environment. Next, it discusses SAS datasets and variables, including importing data into SAS and basic procedures and functions. The document then covers combining datasets in SAS before concluding with next steps. It assumes some basic database and analytics knowledge and provides disclaimers about its intended use as a high-level summary.
This case study tests two hypotheses about customer satisfaction scores: 1) that the average satisfaction score for Samsunge customers is at least 75%, and 2) that the average satisfaction scores for Samsunge and Appleo customers are the same. Data on satisfaction scores for 100 customers from each company was provided. The approach is to use SAS to analyze the data, performing appropriate statistical tests on the Samsunge scores alone to test the first hypothesis, and a mean comparison test to analyze both companies' scores and test the second hypothesis. The results of the statistical tests will determine whether the null hypotheses can be accepted or rejected.
FiberBits, an internet service provider, has seen a 42% customer attrition rate over the last 3 years and wants to build a predictive model to identify customers most likely to quit in the next 2 years. The model will be built using historical data on nearly 10,000 customers containing variables like income, time as a customer, complaints, billing amounts, and technical issues. Customers identified as higher risk will be offered incentives like vouchers to encourage them to stay.
Step-1 Tableau Introduction
Step-2 Connecting to Data
Step-3 Building basic views
Step-4 Data manipulations and Calculated fields
Step-5 Tableau Dashboards
Step-6 Advanced Data Options
Step-7 Advanced graph Options
This document provides an introduction to machine learning, including:
- It discusses how the human brain learns to classify images and how machine learning systems are programmed to perform similar tasks.
- It provides an example of image classification using machine learning and discusses how machines are trained on sample data and then used to classify new queries.
- It outlines some common applications of machine learning in areas like banking, biomedicine, and computer/internet applications. It also discusses popular machine learning algorithms like Bayes networks, artificial neural networks, PCA, SVM classification, and K-means clustering.
List of data sets and data set sources
Sample data sets for machine learning
Data sets for predictive modeling and visualizations
Economic and Social Data sets
Business and Financial datasets
The document provides an introduction to the R programming language. It discusses that R is an open-source programming language for statistical analysis and graphics. It can run on Windows, Unix and MacOS. The document then covers downloading and installing R and R Studio, the R workspace, basics of R syntax like naming conventions and assignments, working with data in R including importing, exporting and creating calculated fields, using R packages and functions, and resources for R help and tutorials.
The document provides an overview of cluster analysis techniques. It discusses the need for segmentation to group large populations into meaningful subsets. Common clustering algorithms like k-means are introduced, which assign data points to clusters based on similarity. The document also covers calculating distances between observations, defining the distance between clusters, and interpreting the results of clustering analysis. Real-world applications of segmentation and clustering are mentioned such as market research, credit risk analysis, and operations management.
This document discusses preparing data for analysis. It covers the need for data exploration including validation, sanitization, and treatment of missing values and outliers. The main steps in statistical data analysis are also presented. Specific techniques discussed include calculating frequency counts and descriptive statistics to understand the distribution and characteristics of variables in a loan data set with 250,000 observations. SAS procedures like Proc Freq, Proc Univariate, and Proc Means are demonstrated for exploring the data.
Ardra Nakshatra (आर्द्रा): Understanding its Effects and RemediesAstro Pathshala
Ardra Nakshatra, the sixth Nakshatra in Vedic astrology, spans from 6°40' to 20° in the Gemini zodiac sign. Governed by Rahu, the north lunar node, Ardra translates to "the moist one" or "the star of sorrow." Symbolized by a teardrop, it represents the transformational power of storms, bringing both destruction and renewal.
About Astro Pathshala
Astro Pathshala is a renowned astrology institute offering comprehensive astrology courses and personalized astrological consultations for over 20 years. Founded by Gurudev Sunil Vashist ji, Astro Pathshala has been a beacon of knowledge and guidance in the field of Vedic astrology. With a team of experienced astrologers, the institute provides in-depth courses that cover various aspects of astrology, including Nakshatras, planetary influences, and remedies. Whether you are a beginner seeking to learn astrology or someone looking for expert astrological advice, Astro Pathshala is dedicated to helping you navigate life's challenges and unlock your full potential through the ancient wisdom of Vedic astrology.
For more information about their courses and consultations, visit Astro Pathshala.
Lecture_Notes_Unit4_Chapter_8_9_10_RDBMS for the students affiliated by alaga...Murugan Solaiyappan
Title: Relational Database Management System Concepts(RDBMS)
Description:
Welcome to the comprehensive guide on Relational Database Management System (RDBMS) concepts, tailored for final year B.Sc. Computer Science students affiliated with Alagappa University. This document covers fundamental principles and advanced topics in RDBMS, offering a structured approach to understanding databases in the context of modern computing. PDF content is prepared from the text book Learn Oracle 8I by JOSE A RAMALHO.
Key Topics Covered:
Main Topic : DATA INTEGRITY, CREATING AND MAINTAINING A TABLE AND INDEX
Sub-Topic :
Data Integrity,Types of Integrity, Integrity Constraints, Primary Key, Foreign key, unique key, self referential integrity,
creating and maintain a table, Modifying a table, alter a table, Deleting a table
Create an Index, Alter Index, Drop Index, Function based index, obtaining information about index, Difference between ROWID and ROWNUM
Target Audience:
Final year B.Sc. Computer Science students at Alagappa University seeking a solid foundation in RDBMS principles for academic and practical applications.
About the Author:
Dr. S. Murugan is Associate Professor at Alagappa Government Arts College, Karaikudi. With 23 years of teaching experience in the field of Computer Science, Dr. S. Murugan has a passion for simplifying complex concepts in database management.
Disclaimer:
This document is intended for educational purposes only. The content presented here reflects the author’s understanding in the field of RDBMS as of 2024.
Feedback and Contact Information:
Your feedback is valuable! For any queries or suggestions, please contact muruganjit@agacollege.in
How to Store Data on the Odoo 17 WebsiteCeline George
Here we are going to discuss how to store data in Odoo 17 Website.
It includes defining a model with few fields in it. Add demo data into the model using data directory. Also using a controller, pass the values into the template while rendering it and display the values in the website.
The Jewish Trinity : Sabbath,Shekinah and Sanctuary 4.pdfJackieSparrow3
we may assume that God created the cosmos to be his great temple, in which he rested after his creative work. Nevertheless, his special revelatory presence did not fill the entire earth yet, since it was his intention that his human vice-regent, whom he installed in the garden sanctuary, would extend worldwide the boundaries of that sanctuary and of God’s presence. Adam, of course, disobeyed this mandate, so that humanity no longer enjoyed God’s presence in the little localized garden. Consequently, the entire earth became infected with sin and idolatry in a way it had not been previously before the fall, while yet in its still imperfect newly created state. Therefore, the various expressions about God being unable to inhabit earthly structures are best understood, at least in part, by realizing that the old order and sanctuary have been tainted with sin and must be cleansed and recreated before God’s Shekinah presence, formerly limited to heaven and the holy of holies, can dwell universally throughout creation
Credit limit improvement system in odoo 17Celine George
In Odoo 17, confirmed and uninvoiced sales orders are now factored into a partner's total receivables. As a result, the credit limit warning system now considers this updated calculation, leading to more accurate and effective credit management.
How to Handle the Separate Discount Account on Invoice in Odoo 17Celine George
In Odoo, separate discount account can be set up to accurately track and manage discounts applied on various transaction and ensure precise financial reporting and analysis
Understanding and Interpreting Teachers’ TPACK for Teaching Multimodalities i...Neny Isharyanti
Presented as a plenary session in iTELL 2024 in Salatiga on 4 July 2024.
The plenary focuses on understanding and intepreting relevant TPACK competence for teachers to be adept in teaching multimodality in the digital age. It juxtaposes the results of research on multimodality with its contextual implementation in the teaching of English subject in the Indonesian Emancipated Curriculum.
How to Install Theme in the Odoo 17 ERPCeline George
With Odoo, we can select from a wide selection of attractive themes. Many excellent ones are free to use, while some require payment. Putting an Odoo theme in the Odoo module directory on our server, downloading the theme, and then installing it is a simple process.
How to Configure Time Off Types in Odoo 17Celine George
Now we can take look into how to configure time off types in odoo 17 through this slide. Time-off types are used to grant or request different types of leave. Only then the authorities will have a clear view or a clear understanding of what kind of leave the employee is taking.
(T.L.E.) Agriculture: Essentials of GardeningMJDuyan
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏.𝟎)-𝐅𝐢𝐧𝐚𝐥𝐬
Lesson Outcome:
-Students will understand the basics of gardening, including the importance of soil, water, and sunlight for plant growth. They will learn to identify and use essential gardening tools, plant seeds, and seedlings properly, and manage common garden pests using eco-friendly methods.
2. •
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What is Bigdata
Sources of Bigdata
What can be done with Big data?
Handling Bigdata
MapReduce
Hadoop
Hadoop components
Hadoop ecosystem
Big data example
Other bigdata use cases
Bigdata Analysis Course
Venkat Reddy
Contents
2
3. •
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Excel : Have you ever tried a pivot table on 500 MB file?
SAS/R : Have you ever tried a frequency table on 2 GB file?
Access: Have you ever tried running a query on 10 GB file
SQL: Have you ever tried running a query on 50 GB file
Bigdata Analysis Course
Venkat Reddy
How much time did it take?
3
4. Can you think of…
• What if we get a new data set like this, every day?
• What if we need to execute complex queries on this data set
everyday ?
• Does anybody really deal with this type of data set?
• Is it possible to store and analyze this data?
• Yes google deals with more than 20 PB data everyday
Bigdata Analysis Course
Venkat Reddy
• Can you think of running a query on 20,980,000 GB file.
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5. •
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Google processes 20 PB a day (2008)
Way back Machine has 3 PB + 100 TB/month (3/2009)
Facebook has 2.5 PB of user data + 15 TB/day (4/2009)
eBay has 6.5 PB of user data + 50 TB/day (5/2009)
CERN’s Large Hydron Collider (LHC) generates 15 PB a
year
That’s right
Bigdata Analysis Course
Venkat Reddy
Yes….its true
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6. •
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Email users send more than 204 million messages;
Mobile Web receives 217 new users;
Google receives over 2 million search queries;
YouTube users upload 48 hours of new video;
Facebook users share 684,000 bits of content;
Twitter users send more than 100,000 tweets;
Consumers spend $272,000 on Web shopping;
Apple receives around 47,000 application downloads;
Brands receive more than 34,000 Facebook 'likes';
Tumblr blog owners publish 27,000 new posts;
Instagram users share 3,600 new photos;
Flickr users, on the other hand, add 3,125 new photos;
Foursquare users perform 2,000 check-ins;
WordPress users publish close to 350 new blog posts.
And this is one year back….. Damn!!
Bigdata Analysis Course
Venkat Reddy
In fact, in a minute…
6
7. What is a large file?
• Traditionally, many operating systems and their underlying file
system implementations used 32-bit integers to represent file sizes
and positions. Consequently no file could be larger than 232-1
bytes (4 GB).
• In many implementations the problem was exacerbated by
treating the sizes as signed numbers, which further lowered the
limit to 231-1 bytes (2 GB).
• Files larger than this, too large for 32-bit operating systems to
handle, came to be known as large files.
What the …
Bigdata Analysis Course
Venkat Reddy
• If you are using a 32 bit OS then 4GB is a large file
7
10. • Collection of data sets so large and complex that it becomes
difficult to process using on-hand database management
tools or traditional data processing applications
• “Big Data” is the data whose scale, diversity, and complexity
require new architecture, techniques, algorithms, and
analytics to manage it and extract value and hidden
knowledge from it…
BTW is it Bigdata/big data/Big data/bigdata/BigData /Big Data?
Bigdata Analysis Course
Venkat Reddy
Bigdata means
10
11. Bigdata is not just about size
• Volume
• Data volumes are becoming unmanageable
• Data complexity is growing. more types of data captured than
previously
• Velocity
• Some data is arriving so rapidly that it must either be processed
instantly, or lost. This is a whole subfield called “stream
processing”
Bigdata Analysis Course
Venkat Reddy
• Variety
11
12. •
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Relational Data (Tables/Transaction/Legacy Data)
Text Data (Web)
Semi-structured Data (XML)
Graph Data
• Social Network, Semantic Web (RDF), …
• Streaming Data
• You can only scan the data once
• Text, numerical, images, audio, video, sequences, time series,
social media data, multi-dim arrays, etc…
Bigdata Analysis Course
Venkat Reddy
Types of data
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Social media brand value analytics
Product sentiment analysis
Customer buying preference predictions
Video analytics
Fraud detection
Aggregation and Statistics
• Data warehouse and OLAP
• Indexing, Searching, and Querying
• Keyword based search
• Pattern matching (XML/RDF)
Bigdata Analysis Course
Venkat Reddy
What can be done with Bigdata?
• Knowledge discovery
• Data Mining
• Statistical Modeling
13
14. But, datasets are huge, complex and difficult
to process
What is the solution?
Bigdata Analysis Course
Venkat Reddy
Ok..…. Analysis on this bigdata can give us
awesome insights
14
15. Handling bigdata- Parallel computing
• Imagine a 1gb text file, all the status updates on Facebook in a day
• Now suppose that a simple counting of the number of rows takes
10 minutes.
• What do you do if you have 6 months data, a file of size 200GB, if
you still want to find the results in 10 minutes?
• Parallel computing?
• Put multiple CPUs in a machine (100?)
• Write a code that will calculate 200 parallel counts and finally
sums up
• But you need a super computer
Bigdata Analysis Course
Venkat Reddy
• Select count(*) from fb_status
15
16. Handling bigdata – Is there a better
way?
• Till 1985, There is no way to connect multiple computers. All
systems were Centralized Systems.
• After 1985,We have powerful microprocessors and High Speed
Computer Networks (LANs , WANs), which lead to distributed
systems
• Now that we have a distributed system that ensures a
collection of independent computers appears to its users as a
single coherent system, can we use some cheap computers
and process our bigdata quickly?
Bigdata Analysis Course
Venkat Reddy
• So multi-core system or super computers were the only options
for big data problems
16
17. • We want to cut the data into small pieces & place them on
different machines
• Divide the overall problem into small tasks & run these small
tasks locally
• Finally collate the results from local machines
• So, we want to process our bigdata in a parallel programming
model and associated implementation.
• This is known as MapReduce
Bigdata Analysis Course
Venkat Reddy
Distributed computing
17
18. • Processing data using special map() and reduce() functions
• The map() function is called on every item in the input and
emits a series of intermediate key/value pairs(Local
calculation)
• All values associated with a given key are grouped together
• The reduce() function is called on every unique key, and its
value list, and emits a value that is added to the output(final
organization)
Bigdata Analysis Course
Venkat Reddy
MapReduce…. Programming Model
18
20. Not just MapReduce
1.
2.
3.
4.
5.
6.
Setup a cluster of machines, then divide the whole data set into
blocks and store them in local machines
Assign a master node that takes charge of all meta data, work
scheduling and distribution, and job orchestration
Assign worker slots to execute map or reduce functions
Load Balance (What if one machine is very slow in the cluster?)
Fault Tolerance (What if the intermediate data is partially read,
but the machine fails before all reduce(collation) operations
can complete?)
Finally write the map reduce code that solves our problem
Bigdata Analysis Course
Venkat Reddy
• Earlier count=count+1 was sufficient but now, we need to
20
21. Ok..…. Analysis on bigdata can give us awesome
insights
I found a solution, distributed computing or
MapReduce
But looks like this data storage & parallel processing
is complicated
What is the solution?
Bigdata Analysis Course
Venkat Reddy
But, datasets are huge, complex and difficult to
process
21
22. Hadoop
• Hadoop is a bunch of tools, it has many components. HDFS
and MapReduce are two core components of Hadoop
• makes our job easy to store the data on commodity hardware
• Built to expect hardware failures
• Intended for large files & batch inserts
• MapReduce
• For parallel processing
Bigdata Analysis Course
Venkat Reddy
• HDFS: Hadoop Distributed File System
• So Hadoop is a software platform that lets one easily write
and run applications that process bigdata
22
23. • Scalable: It can reliably store and process petabytes.
• Economical: It distributes the data and processing across
clusters of commonly available computers (in thousands).
• Efficient: By distributing the data, it can process it in parallel
on the nodes where the data is located.
• Reliable: It automatically maintains multiple copies of data
and automatically redeploys computing tasks based on
failures.
• And Hadoop is free
Bigdata Analysis Course
Venkat Reddy
Why Hadoop is useful
23
24. So what is Hadoop?
• Hadoop is a platform/framework
• Which allows the user to quickly write and test distributed
systems
• Which is efficient in automatically distributing the data and work
across machines
Bigdata Analysis Course
Venkat Reddy
• Hadoop is not Bigdata
• Hadoop is not a database
24
25. Ok..…. Analysis on bigdata can give us awesome
insights
I found a solution, distributed computing or
MapReduce
But looks like this data storage & parallel processing
is complicated
Ok, I can use Hadoop framework…..I don’t know Java,
how do I write MapReduce programs?
Bigdata Analysis Course
Venkat Reddy
But, datasets are huge, complex and difficult to
process
25
26. MapReduce made easy
• Hive:
• Pig:
• Pig is a high-level platform for processing big data on Hadoop
clusters.
• Pig consists of a data flow language, called Pig Latin, supporting
writing queries on large datasets and an execution environment
running programs from a console
• The Pig Latin programs consist of dataset transformation series
converted under the covers, to a MapReduce program series
Bigdata Analysis Course
Venkat Reddy
• Hive is for data analysts with strong SQL skills providing an SQL-like
interface and a relational data model
• Hive uses a language called HiveQL; very similar to SQL
• Hive translates queries into a series of MapReduce jobs
• Mahout
• Mahout is an open source machine-learning library facilitating
building scalable matching learning libraries
26
29. Bigdata example
• The Business Problem:
• Analyze this week’s stack overflow datahttp://stackoverflow.com/
• What are the most popular topics in this week?
• Find out some simple descriptive statistics for each field
• Total questions
• Total unique tags
• Frequency of each tag etc.,
• The ‘tag’ with max frequency is the most popular topic
• Lets use Hadoop to find these values, since we can’t rapidly
process this data with usual tools
Bigdata Analysis Course
Venkat Reddy
• Approach:
29
31. Bigdata Analysis Course
Venkat Reddy
Move the dataset to HDFS
• The file size is 6.99GB, it has been automatically cut into several
pieces/blocks, size of the each block is 64MB
• This can be done by just using a simple command
bin/hadoop fs -copyFromLocal /home/final_stack_data stack_data
*Data later copied into Hive table
31
32. Bigdata Analysis Course
Venkat Reddy
Data in HDFS: Hadoop Distributed File
System
• Each block is 64MB total file size is
7GB, so total 112 blocks
32
33. Processing the data
Here is our query
MapReduce is about to start
Bigdata Analysis Course
Venkat Reddy
• What are the total number of entries in this file?
33
35. The execution time
The result
Bigdata Analysis Course
Venkat Reddy
runtime
• Note: I ran Hadoop on a very basic machine(1.5 GB RAM , i3 processor
on,32bit virtual machine).
• This example is just for demo purpose, the same query will take much lesser
time, if we are running on a multi node cluster setup
35
36. Bigdata example: Results
• ‘C’ happens to be most popular tag
• It took around 15 minutes to get these insights
Bigdata Analysis Course
Venkat Reddy
• The query returns , means there are nearly 6 million stack
overflow questions and tags
• Similarly we can run other map reduce jobs on the tags to
find out most frequent topics.
36
37. • In the above example, we have the stack overflow questions
and corresponding tags
• Can we use some supervised machine learning technique to
predict the tags for the new questions?
• Can you write the map reduce code for Naïve Bayes
algorithm/Random forest?
• How is Wikipedia highlighting some words in your text as
hyperlinks?
• How can YouTube suggest you relevant tags after you upload a
video?
• How is amazon recommending you a new product?
• How are the companies leveraging bigdata analytics?
Bigdata Analysis Course
Venkat Reddy
Advanced analytics…
37
38. Bigdata use cases
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Amazon has been collecting customer information for years--not just addresses
and payment information but the identity of everything that a customer had
ever bought or even looked at.
While dozens of other companies do that, too, Amazon’s doing something
remarkable with theirs. They’re using that data to build customer relationship
•
•
•
Corporations and investors want to be able to track the consumer market
as closely as possible to signal trends that will inform their next product
launches.
LinkedIn is a bank of data not just about people, but how people are
making their money and what industries they are working in and how they
connect to each other.
Bigdata Analysis Course
Venkat Reddy
Ford collects and aggregates data from the 4 million vehicles that use in-car
sensing and remote app management software
The data allows to glean information on a range of issues, from how drivers
are using their vehicles, to the driving environment that could help them
improve the quality of the vehicle
38
39. Bigdata use cases
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Largest retail company in the world. Fortune 1 out of 500
Largest sales data warehouse: Retail Link, a $4 billion project (1991). One of
the largest “civilian” data warehouse in the world: 2004: 460 terabytes,
Internet half as large
Defines data science: What do hurricanes, strawberry Pop-Tarts, and beer have
in common?
•
•
•
Includes financial and marketing applications, but with special focus on
industrial uses of big data
When will this gas turbine need maintenance? How can we optimize the
performance of a locomotive? What is the best way to make decisions
about energy finance?
Bigdata Analysis Course
Venkat Reddy
AT&T has 300 million customers. A team of researchers is working to turn
data collected through the company’s cellular network into a trove of
information for policymakers, urban planners and traffic engineers.
The researchers want to see how the city changes hourly by looking at calls
and text messages relayed through cell towers around the region, noting
that certain towers see more activity at different times
39