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.
My class presentation at USC. It gives an introduction about what is data science, machine learning, applications, recommendation system and infrastructure.
Microsoft Introduction to Automated Machine LearningSetu Chokshi
A gentle introduction to Microsoft's AutoML SDK package. This presentation introduces the concept of why automated machine learning has an important place in any data scientists tool box. Auto ML SDK allows you to to build and run machine learning workflows with the Azure Machine Learning service. You can interact with the service in any Python environment, including Jupyter Notebooks or your favourite Python IDE.
The demos included in the presentation are making use of the Azure Notebooks.
MLOps Virtual Event | Building Machine Learning Platforms for the Full LifecycleDatabricks
Successfully building a machine learning model is hard enough. Reproducing your results at scale — enabling others to reproduce pipelines, comparing results from other versions, moving models into production, redeploying and rolling out updated models — is exponentially harder. To address these challenges and accelerate innovation, many companies are building custom “ML platforms” to automate the end-to-end ML lifecycle.
Watch a replay of this MLOps Virtual Event to hear more about the latest developments and best practices for managing the full ML lifecycle on Databricks with MLflow. We covered a checklist of capabilities you’ll need, common pitfalls, technological and organizational challenges, and how to overcome them.
https://www.youtube.com/playlist?list=PLTPXxbhUt-YUFNBwBsSIlknoNbS7GExZw
1.Introduction
2.Overview
3.Why Big Data
4.Application of Big Data
5.Risks of Big Data
6.Benefits & Impact of Big Data
7.Conclusion
‘Big Data’ is similar to ‘small data’, but bigger in size
But having data bigger it requires different approaches:
Techniques, tools and architecture
An aim to solve new problems or old problems in a better
way
Big Data generates value from the storage and processing
of very large quantities of digital information that cannot be
analyzed with traditional computing techniques.
These webinar slides are an introduction to Neo4j and Graph Databases. They discuss the primary use cases for Graph Databases and the properties of Neo4j which make those use cases possible. They also cover the high-level steps of modeling, importing, and querying your data using Cypher and touch on RDBMS to Graph.
My class presentation at USC. It gives an introduction about what is data science, machine learning, applications, recommendation system and infrastructure.
Microsoft Introduction to Automated Machine LearningSetu Chokshi
A gentle introduction to Microsoft's AutoML SDK package. This presentation introduces the concept of why automated machine learning has an important place in any data scientists tool box. Auto ML SDK allows you to to build and run machine learning workflows with the Azure Machine Learning service. You can interact with the service in any Python environment, including Jupyter Notebooks or your favourite Python IDE.
The demos included in the presentation are making use of the Azure Notebooks.
MLOps Virtual Event | Building Machine Learning Platforms for the Full LifecycleDatabricks
Successfully building a machine learning model is hard enough. Reproducing your results at scale — enabling others to reproduce pipelines, comparing results from other versions, moving models into production, redeploying and rolling out updated models — is exponentially harder. To address these challenges and accelerate innovation, many companies are building custom “ML platforms” to automate the end-to-end ML lifecycle.
Watch a replay of this MLOps Virtual Event to hear more about the latest developments and best practices for managing the full ML lifecycle on Databricks with MLflow. We covered a checklist of capabilities you’ll need, common pitfalls, technological and organizational challenges, and how to overcome them.
https://www.youtube.com/playlist?list=PLTPXxbhUt-YUFNBwBsSIlknoNbS7GExZw
1.Introduction
2.Overview
3.Why Big Data
4.Application of Big Data
5.Risks of Big Data
6.Benefits & Impact of Big Data
7.Conclusion
‘Big Data’ is similar to ‘small data’, but bigger in size
But having data bigger it requires different approaches:
Techniques, tools and architecture
An aim to solve new problems or old problems in a better
way
Big Data generates value from the storage and processing
of very large quantities of digital information that cannot be
analyzed with traditional computing techniques.
These webinar slides are an introduction to Neo4j and Graph Databases. They discuss the primary use cases for Graph Databases and the properties of Neo4j which make those use cases possible. They also cover the high-level steps of modeling, importing, and querying your data using Cypher and touch on RDBMS to Graph.
The right architecture is key for any IT project. This is especially the case for big data projects, where there are no standard architectures which have proven their suitability over years. This session discusses the different Big Data Architectures which have evolved over time, including traditional Big Data Architecture, Streaming Analytics architecture as well as Lambda and Kappa architecture and presents the mapping of components from both Open Source as well as the Oracle stack onto these architectures.
Big Data [sorry] & Data Science: What Does a Data Scientist Do?Data Science London
What 'kind of things' does a data scientist do? What are the foundations and principles of data science? What is a Data Product? What does the data science process looks like? Learning from data: Data Modeling or Algorithmic Modeling? - talk by Carlos Somohano @ds_ldn at The Cloud and Big Data: HDInsight on Azure London 25/01/13
HDFS is a Java-based file system that provides scalable and reliable data storage, and it was designed to span large clusters of commodity servers. HDFS has demonstrated production scalability of up to 200 PB of storage and a single cluster of 4500 servers, supporting close to a billion files and blocks.
How One Company Offloaded Data Warehouse ETL To Hadoop and Saved $30 MillionDataWorks Summit
A Fortune 100 company recently introduced Hadoop into their data warehouse environment and ETL workflow to save $30 Million. This session examines the specific use case to illustrate the design considerations, as well as the economics behind ETL offload with Hadoop. Additional information about how the Hadoop platform was leveraged to support extended analytics will also be referenced.
Hadoop Training | Hadoop Training For Beginners | Hadoop Architecture | Hadoo...Simplilearn
This presentation about Hadoop training will help you understand the need for Hadoop, what is Hadoop and concepts including Hadoop ecosystem, Hadoop features, how HDFS works, what is MapReduce and how YARN works. Finally, we will implement a banking case study using Hadoop. To solve the issue of rapidly increasing data, we need big data technologies such as Hadoop, Spark, Storm, Cassandra and many more. Hadoop can store and process vast volumes of data. You will understand the architecture of HDFS, MapReduce workflow and the architecture of YARN. In the demo, you will learn in detail on how to export data from RDBMS (MySQL) into HDFS using Sqoop commands. Now, let us get started and gain expertise with Hadoop training video.
Below topics are explained in this Hadoop training presentation:
1. Need for Hadoop
2. What is Hadoop
3. Hadoop ecosystem
4. Hadoop features
5. What is HDFS
6. What is MapReduce
7. What is YARN
8. Bank case study
What is this Big Data Hadoop training course about?
The Big Data Hadoop and Spark developer course have been designed to impart an in-depth knowledge of Big Data processing using Hadoop and Spark. The course is packed with real-life projects and case studies to be executed in the CloudLab.
What are the course objectives?
This course will enable you to:
1. Understand the different components of Hadoop ecosystem such as Hadoop 2.7, Yarn, MapReduce, Pig, Hive, Impala, HBase, Sqoop, Flume, and Apache Spark
2. Understand Hadoop Distributed File System (HDFS) and YARN as well as their architecture, and learn how to work with them for storage and resource management
3. Understand MapReduce and its characteristics, and assimilate some advanced MapReduce concepts
4. Get an overview of Sqoop and Flume and describe how to ingest data using them
5. Create database and tables in Hive and Impala, understand HBase, and use Hive and Impala for partitioning
6. Understand different types of file formats, Avro Schema, using Arvo with Hive, and Sqoop and Schema evolution
7. Understand Flume, Flume architecture, sources, flume sinks, channels, and flume configurations
8. Understand HBase, its architecture, data storage, and working with HBase. You will also understand the difference between HBase and RDBMS
9. Gain a working knowledge of Pig and its components
10. Do functional programming in Spark
11. Understand resilient distribution datasets (RDD) in detail
12. Implement and build Spark applications
13. Gain an in-depth understanding of parallel processing in Spark and Spark RDD optimization techniques
14. Understand the common use-cases of Spark and the various interactive algorithms
15. Learn Spark SQL, creating, transforming, and querying Data frames
Learn more at https://www.simplilearn.com/big-data-and-analytics/big-data-and-hadoop-training
Looking at what is driving Big Data. Market projections to 2017 plus what is are customer and infrastructure priorities. What drove BD in 2013 and what were barriers. Introduction to Business Analytics, Types, Building Analytics approach and ten steps to build your analytics platform within your company plus key takeaways.
This presentation have the concept of Big data.
Why Big data is important to the present world.
How to visualize big data.
Steps for perfect visualization.
Visualization and design principle.
Also It had a number of visualization method for big data and traditional data.
Advantage of Visualization in Big Data
Entity Resolution is the task of disambiguating manifestations of real world entities through linking and grouping and is often an essential part of the data wrangling process. There are three primary tasks involved in entity resolution: deduplication, record linkage, and canonicalization; each of which serve to improve data quality by reducing irrelevant or repeated data, joining information from disparate records, and providing a single source of information to perform analytics upon. However, due to data quality issues (misspellings or incorrect data), schema variations in different sources, or simply different representations, entity resolution is not a straightforward process and most ER techniques utilize machine learning and other stochastic approaches.
Embarking on building a modern data warehouse in the cloud can be an overwhelming experience due to the sheer number of products that can be used, especially when the use cases for many products overlap others. In this talk I will cover the use cases of many of the Microsoft products that you can use when building a modern data warehouse, broken down into four areas: ingest, store, prep, and model & serve. It’s a complicated story that I will try to simplify, giving blunt opinions of when to use what products and the pros/cons of each.
Testing Big Data application is more a verification of its data processing rather than testing the individual features. It demands a high level of testing skills as the processing is very fast.
View the Big Data Technology Stack in a nutshell. This Big Data Technology Stack deck covers the different layers of the Big Data world and summarizes the major technologies in vogue today.
Understanding big data and data analytics big dataSeta Wicaksana
Big Data helps companies to generate valuable insights. Companies use Big Data to refine their marketing campaigns and techniques. Companies use it in machine learning projects to train machines, predictive modeling, and other advanced analytics applications.
Getting real-time analytics for devices/application/business monitoring from trillions of events and petabytes of data like companies Netflix, Uber, Alibaba, Paypal, Ebay, Metamarkets do.
What’s New with Databricks Machine LearningDatabricks
In this session, the Databricks product team provides a deeper dive into the machine learning announcements. Join us for a detailed demo that gives you insights into the latest innovations that simplify the ML lifecycle — from preparing data, discovering features, and training and managing models in production.
This presentation introduces concepts of Big Data in a layman's language. Author does not claim the originality of the content. The presentation is made by compiling from various sources. Author does not claim copyrights or privacy issues.
Big data is exponentially rising in today's age of information and digital shrinkage. This presentation potentially clears the concept and revolving hype around it.
Big data introduction - Big Data from a Consulting perspective - SogetiEdzo Botjes
Big data introduction - Sogeti - Consulting Services - Business Technology - 20130628 v5
This is a small introduction to the topic Big Data and a small vision on how to enable a (big) company in using big data and embed it into the organisation.
The right architecture is key for any IT project. This is especially the case for big data projects, where there are no standard architectures which have proven their suitability over years. This session discusses the different Big Data Architectures which have evolved over time, including traditional Big Data Architecture, Streaming Analytics architecture as well as Lambda and Kappa architecture and presents the mapping of components from both Open Source as well as the Oracle stack onto these architectures.
Big Data [sorry] & Data Science: What Does a Data Scientist Do?Data Science London
What 'kind of things' does a data scientist do? What are the foundations and principles of data science? What is a Data Product? What does the data science process looks like? Learning from data: Data Modeling or Algorithmic Modeling? - talk by Carlos Somohano @ds_ldn at The Cloud and Big Data: HDInsight on Azure London 25/01/13
HDFS is a Java-based file system that provides scalable and reliable data storage, and it was designed to span large clusters of commodity servers. HDFS has demonstrated production scalability of up to 200 PB of storage and a single cluster of 4500 servers, supporting close to a billion files and blocks.
How One Company Offloaded Data Warehouse ETL To Hadoop and Saved $30 MillionDataWorks Summit
A Fortune 100 company recently introduced Hadoop into their data warehouse environment and ETL workflow to save $30 Million. This session examines the specific use case to illustrate the design considerations, as well as the economics behind ETL offload with Hadoop. Additional information about how the Hadoop platform was leveraged to support extended analytics will also be referenced.
Hadoop Training | Hadoop Training For Beginners | Hadoop Architecture | Hadoo...Simplilearn
This presentation about Hadoop training will help you understand the need for Hadoop, what is Hadoop and concepts including Hadoop ecosystem, Hadoop features, how HDFS works, what is MapReduce and how YARN works. Finally, we will implement a banking case study using Hadoop. To solve the issue of rapidly increasing data, we need big data technologies such as Hadoop, Spark, Storm, Cassandra and many more. Hadoop can store and process vast volumes of data. You will understand the architecture of HDFS, MapReduce workflow and the architecture of YARN. In the demo, you will learn in detail on how to export data from RDBMS (MySQL) into HDFS using Sqoop commands. Now, let us get started and gain expertise with Hadoop training video.
Below topics are explained in this Hadoop training presentation:
1. Need for Hadoop
2. What is Hadoop
3. Hadoop ecosystem
4. Hadoop features
5. What is HDFS
6. What is MapReduce
7. What is YARN
8. Bank case study
What is this Big Data Hadoop training course about?
The Big Data Hadoop and Spark developer course have been designed to impart an in-depth knowledge of Big Data processing using Hadoop and Spark. The course is packed with real-life projects and case studies to be executed in the CloudLab.
What are the course objectives?
This course will enable you to:
1. Understand the different components of Hadoop ecosystem such as Hadoop 2.7, Yarn, MapReduce, Pig, Hive, Impala, HBase, Sqoop, Flume, and Apache Spark
2. Understand Hadoop Distributed File System (HDFS) and YARN as well as their architecture, and learn how to work with them for storage and resource management
3. Understand MapReduce and its characteristics, and assimilate some advanced MapReduce concepts
4. Get an overview of Sqoop and Flume and describe how to ingest data using them
5. Create database and tables in Hive and Impala, understand HBase, and use Hive and Impala for partitioning
6. Understand different types of file formats, Avro Schema, using Arvo with Hive, and Sqoop and Schema evolution
7. Understand Flume, Flume architecture, sources, flume sinks, channels, and flume configurations
8. Understand HBase, its architecture, data storage, and working with HBase. You will also understand the difference between HBase and RDBMS
9. Gain a working knowledge of Pig and its components
10. Do functional programming in Spark
11. Understand resilient distribution datasets (RDD) in detail
12. Implement and build Spark applications
13. Gain an in-depth understanding of parallel processing in Spark and Spark RDD optimization techniques
14. Understand the common use-cases of Spark and the various interactive algorithms
15. Learn Spark SQL, creating, transforming, and querying Data frames
Learn more at https://www.simplilearn.com/big-data-and-analytics/big-data-and-hadoop-training
Looking at what is driving Big Data. Market projections to 2017 plus what is are customer and infrastructure priorities. What drove BD in 2013 and what were barriers. Introduction to Business Analytics, Types, Building Analytics approach and ten steps to build your analytics platform within your company plus key takeaways.
This presentation have the concept of Big data.
Why Big data is important to the present world.
How to visualize big data.
Steps for perfect visualization.
Visualization and design principle.
Also It had a number of visualization method for big data and traditional data.
Advantage of Visualization in Big Data
Entity Resolution is the task of disambiguating manifestations of real world entities through linking and grouping and is often an essential part of the data wrangling process. There are three primary tasks involved in entity resolution: deduplication, record linkage, and canonicalization; each of which serve to improve data quality by reducing irrelevant or repeated data, joining information from disparate records, and providing a single source of information to perform analytics upon. However, due to data quality issues (misspellings or incorrect data), schema variations in different sources, or simply different representations, entity resolution is not a straightforward process and most ER techniques utilize machine learning and other stochastic approaches.
Embarking on building a modern data warehouse in the cloud can be an overwhelming experience due to the sheer number of products that can be used, especially when the use cases for many products overlap others. In this talk I will cover the use cases of many of the Microsoft products that you can use when building a modern data warehouse, broken down into four areas: ingest, store, prep, and model & serve. It’s a complicated story that I will try to simplify, giving blunt opinions of when to use what products and the pros/cons of each.
Testing Big Data application is more a verification of its data processing rather than testing the individual features. It demands a high level of testing skills as the processing is very fast.
View the Big Data Technology Stack in a nutshell. This Big Data Technology Stack deck covers the different layers of the Big Data world and summarizes the major technologies in vogue today.
Understanding big data and data analytics big dataSeta Wicaksana
Big Data helps companies to generate valuable insights. Companies use Big Data to refine their marketing campaigns and techniques. Companies use it in machine learning projects to train machines, predictive modeling, and other advanced analytics applications.
Getting real-time analytics for devices/application/business monitoring from trillions of events and petabytes of data like companies Netflix, Uber, Alibaba, Paypal, Ebay, Metamarkets do.
What’s New with Databricks Machine LearningDatabricks
In this session, the Databricks product team provides a deeper dive into the machine learning announcements. Join us for a detailed demo that gives you insights into the latest innovations that simplify the ML lifecycle — from preparing data, discovering features, and training and managing models in production.
This presentation introduces concepts of Big Data in a layman's language. Author does not claim the originality of the content. The presentation is made by compiling from various sources. Author does not claim copyrights or privacy issues.
Big data is exponentially rising in today's age of information and digital shrinkage. This presentation potentially clears the concept and revolving hype around it.
Big data introduction - Big Data from a Consulting perspective - SogetiEdzo Botjes
Big data introduction - Sogeti - Consulting Services - Business Technology - 20130628 v5
This is a small introduction to the topic Big Data and a small vision on how to enable a (big) company in using big data and embed it into the organisation.
Eliminating the Problems of Exponential Data Growth, Foreverspectralogic
Balancing explosive data growth while addressing the need for extended data protection is mandatory for any IT department. But customers today find it difficult to address these challenges because of the software management layers and tools required in order to meet longer retention mandates. While exponential data growth is not a new problem, the quandary that IT faces in 2014, now has a new solution.
Join Spectra and IDC as we identify the greatest dilemmas facing data centers in 2014, and explore the capabilities of Spectra’s newest product, the BlackPearl™ Deep Storage Appliance. During this brief webinar, attendees will learn about:
-A situation analysis of today’s software-defined data center
-How moving to an “elastic” data center enables more cost-effective and efficient data management
-Emerging technologies and key strategies to store and manage data indefinitely
Big data nowadays is a new challenge to be managed, not as a barrier to grow up business. Data storages costs relatively is inexpensive, with more transactions generated from social media, machine, and sensors, data increased from pieces by pieces into pentabytes.
This slide explained what the challenges of Big Data (Volume, Velocity, and Variety) and give a solution how to managed them.
There are many tools that could help to solve the problems, but the main focus tools in this slide is Apache Hadoop.
Big Data Processing in the Cloud: A Hydra/Sufia Experiencerotated8
This presentation addresses the challenge of processing big data in a cloud-based data repository. Using the Hydra Project’s Hydra and Sufia ruby gems and working with the Hydra community, we created a special repository for the project, and set up background jobs. Our approach is to create the metadata with these jobs, which are distributed across multiple computing cores. This will allow us to scale our infrastructure out on an as-needed basis, and decouples automatic metadata creation from the response times seen by the user. While the metadata is not immediately available after ingestion, it does mean that the object is. By distributing the jobs, we can compute complex properties without impacting the repository server. Hydra and Sufia allowed us to get a head start by giving us a simple self deposit repository, complete with background jobs support via Redis and Resque.
Big Data Processing in the Cloud: a Hydra/Sufia Experience
Zhiwu Xie, Ph.D., Associate Professor and Technology Development Librarian, Center for Digital Research and Scholarship University Libraries, Virginia Tech
General introduction to Big Data terms and technologies: Velocity, Volume, Variety (3V) and Veracity (4V), NoSQL, Data Science, main data stores (key-value, column, document, graph), Elasticsearch, ...
Presentation of data.be products leveraging Big Data & Elasticsearch
Here is Matt Brender's presentation at Big Data TechCon centered on understanding how distributed systems play a role in Big Data.
Full description:
Whether you’re an experienced user of Hadoop or a recent convert to Spark, you recognize that data is powerful when stored and analyzed. Analysis, as a workload, can be contrasted with the initial creation and storage of that data. These “active” workloads are what generate the data we covet.
Understanding this persistence of data as workload requires an appreciation of distributed systems. We will explore what factors affect your choice in database technology and particularly how to prioritize the choice in core architectural underpinnings present in NoSQL designs. We will also explore what these technologies solve and suggestions for how to align them with your business objectives.
You’ll leave this session with an understanding of the basic principles of NoSQL architectural design and a deeper understanding of the considerations when identifying a persistence solution for your active workloads.
Very basic Introduction to Big Data. Touches on what it is, characteristics, some examples of Big Data frameworks. Hadoop 2.0 example - Yarn, HDFS and Map-Reduce with Zookeeper.
My talk at the Winter School on Big Data in Tarragona, Spain.
Abstract: We have made much progress over the past decade toward harnessing the collective power of IT resources distributed across the globe. In high-energy physics, astronomy, and climate, thousands work daily within virtual computing systems with global scope. But we now face a far greater challenge: Exploding data volumes and powerful simulation tools mean that many more--ultimately most?--researchers will soon require capabilities not so different from those used by such big-science teams. How are we to meet these needs? Must every lab be filled with computers and every researcher become an IT specialist? Perhaps the solution is rather to move research IT out of the lab entirely: to leverage the “cloud” (whether private or public) to achieve economies of scale and reduce cognitive load. I explore the past, current, and potential future of large-scale outsourcing and automation for science, and suggest opportunities and challenges for today’s researchers.
This document describes something about big data at vccorp. It's an overview about some features and architecture in our system. We also have some problems needed to be solved.
Extracting value from Big Data is not easy. The field of technologies and vendors is fragmented and rapidly evolving. End-to-end, general purpose solutions that work out of the box don’t exist yet, and Hadoop is no exception. And most companies lack Big Data specialists. The key to unlocking real value lies with thinking smart and hard about the business requirements for a Big Data solution. There is a long list of crucial questions to think about. Is Hadoop really the best solution for all Big Data needs? Should companies run a Hadoop cluster on expensive enterprise-grade storage, or use cheap commodity servers? Should the chosen infrastructure be bare metal or virtualized? The picture becomes even more confusing at the analysis and visualization layer. The answer to Big Data ROI lies somewhere between the herd and nerd mentality. Thinking hard and being smart about each use case as early as possible avoids costly mistakes in choosing hardware and software. This talk will illustrate how Deutsche Telekom follows this segmentation approach to make sure every individual use case drives architecture design and the selection of technologies and vendors.
Guest Speaker in the 2nd National level webinar titled "Big Data Driven Solutions to Combat Covid 19" on 4th July 2020, Ethiraj College for Women(Auto), Chennai.
DevOps for Data Engineers - Automate Your Data Science Pipeline with Ansible,...Mihai Criveti
Automate your Data Science pipeline with Ansible, Python and Kubernetes - ODSC Talk
What is Data Science and the Data Science Landscape
Process and Flow
Understanding Data
The Data Science Toolkit
The Big Data Challenge
Cloud Computing Solutions
The rise of DevOps in Data Science
Automate your data pipeline with Ansible
Logical Data Lakes: From Single Purpose to Multipurpose Data Lakes (APAC)Denodo
Watch full webinar here: https://bit.ly/3aePFcF
Historically data lakes have been created as a centralized physical data storage platform for data scientists to analyze data. But lately the explosion of big data, data privacy rules, departmental restrictions among many other things have made the centralized data repository approach less feasible. In this webinar, we will discuss why decentralized multipurpose data lakes are the future of data analysis for a broad range of business users.
Attend this session to learn:
- The restrictions of physical single purpose data lakes
- How to build a logical multi purpose data lake for business users
- The newer use cases that makes multi purpose data lakes a necessity
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
DAMA & Denodo Webinar: Modernizing Data Architecture Using Data Virtualization Denodo
Watch here: https://bit.ly/2NGQD7R
In an era increasingly dominated by advancements in cloud computing, AI and advanced analytics it may come as a shock that many organizations still rely on data architectures built before the turn of the century. But that scenario is rapidly changing with the increasing adoption of real-time data virtualization - a paradigm shift in the approach that organizations take towards accessing, integrating, and provisioning data required to meet business goals.
As data analytics and data-driven intelligence takes centre stage in today’s digital economy, logical data integration across the widest variety of data sources, with proper security and governance structure in place has become mission-critical.
Attend this session to learn:
- Learn how you can meet cloud and data science challenges with data virtualization.
- Why data virtualization is increasingly finding enterprise-wide adoption
- Discover how customers are reducing costs and improving ROI with data virtualization
Every second of every day you hear about Electronic systems creating ever increasing quantities of data. Systems in markets such as finance, media, healthcare, government and scientific research feature strongly in the Big Data processing conversation. While extracting business value from Big Data is forecast to bring customer and competitive advantage and benefits. In this session hear Vas Kapsalis, NetApp Big Data Business Development Manager, discuss his views and experience on the wider world of Big Data.
DataOps - The Foundation for Your Agile Data ArchitectureDATAVERSITY
Achieving agility in data and analytics is hard. It’s no secret that most data organizations struggle to deliver the on-demand data products that their business customers demand. Recently, there has been much hype around new design patterns that promise to deliver this much sought-after agility.
In this webinar, Chris Bergh, CEO and Head Chef of DataKitchen will cut through the noise and describe several elegant and effective data architecture design patterns that deliver low errors, rapid development, and high levels of collaboration. He’ll cover:
• DataOps, Data Mesh, Functional Design, and Hub & Spoke design patterns;
• Where Data Fabric fits into your architecture;
• How different patterns can work together to maximize agility; and
• How a DataOps platform serves as the foundational superstructure for your agile architecture.
Hadoop was born out of the need to process Big Data.Today data is being generated liked never before and it is becoming difficult to store and process this enormous volume and large variety of data, In order to cope this Big Data technology comes in.Today Hadoop software stack is go-to framework for large scale,data intensive storage and compute solution for Big Data Analytics Applications.The beauty of Hadoop is that it is designed to process large volume of data in clustered commodity computers work in parallel.Distributing the data that is too large across the nodes in clusters solves the problem of having too large data sets to be processed onto the single machine.
From Single Purpose to Multi Purpose Data Lakes - Broadening End UsersDenodo
Watch full webinar here: https://buff.ly/2Mt555e
Historically data lakes have been created as centralized physical data storage platform for data scientists to analyze data. But lately the explosion of big data, data privacy rules, departmental restrictions among many other things have made the centralized data repository approach less feasible. In his recent whitepaper, renowned analyst Rick F. Van Der Lans talks about why decentralized multi purpose data lakes are the future of data analysis for a broad range of business users.
Please attend this session to learn:
• The restrictions of physical single purpose data lakes
• How to build a logical multi purpose data lake for business users
• The newer use cases that makes multi purpose data lakes a necessity
The Building Blocks of QuestDB, a Time Series Databasejavier ramirez
Talk Delivered at Valencia Codes Meetup 2024-06.
Traditionally, databases have treated timestamps just as another data type. However, when performing real-time analytics, timestamps should be first class citizens and we need rich time semantics to get the most out of our data. We also need to deal with ever growing datasets while keeping performant, which is as fun as it sounds.
It is no wonder time-series databases are now more popular than ever before. Join me in this session to learn about the internal architecture and building blocks of QuestDB, an open source time-series database designed for speed. We will also review a history of some of the changes we have gone over the past two years to deal with late and unordered data, non-blocking writes, read-replicas, or faster batch ingestion.
Adjusting primitives for graph : SHORT REPORT / NOTESSubhajit Sahu
Graph algorithms, like PageRank Compressed Sparse Row (CSR) is an adjacency-list based graph representation that is
Multiply with different modes (map)
1. Performance of sequential execution based vs OpenMP based vector multiply.
2. Comparing various launch configs for CUDA based vector multiply.
Sum with different storage types (reduce)
1. Performance of vector element sum using float vs bfloat16 as the storage type.
Sum with different modes (reduce)
1. Performance of sequential execution based vs OpenMP based vector element sum.
2. Performance of memcpy vs in-place based CUDA based vector element sum.
3. Comparing various launch configs for CUDA based vector element sum (memcpy).
4. Comparing various launch configs for CUDA based vector element sum (in-place).
Sum with in-place strategies of CUDA mode (reduce)
1. Comparing various launch configs for CUDA based vector element sum (in-place).
Quantitative Data AnalysisReliability Analysis (Cronbach Alpha) Common Method...2023240532
Quantitative data Analysis
Overview
Reliability Analysis (Cronbach Alpha)
Common Method Bias (Harman Single Factor Test)
Frequency Analysis (Demographic)
Descriptive Analysis
Levelwise PageRank with Loop-Based Dead End Handling Strategy : SHORT REPORT ...Subhajit Sahu
Abstract — Levelwise PageRank is an alternative method of PageRank computation which decomposes the input graph into a directed acyclic block-graph of strongly connected components, and processes them in topological order, one level at a time. This enables calculation for ranks in a distributed fashion without per-iteration communication, unlike the standard method where all vertices are processed in each iteration. It however comes with a precondition of the absence of dead ends in the input graph. Here, the native non-distributed performance of Levelwise PageRank was compared against Monolithic PageRank on a CPU as well as a GPU. To ensure a fair comparison, Monolithic PageRank was also performed on a graph where vertices were split by components. Results indicate that Levelwise PageRank is about as fast as Monolithic PageRank on the CPU, but quite a bit slower on the GPU. Slowdown on the GPU is likely caused by a large submission of small workloads, and expected to be non-issue when the computation is performed on massive graphs.
06-04-2024 - NYC Tech Week - Discussion on Vector Databases, Unstructured Data and AI
Discussion on Vector Databases, Unstructured Data and AI
https://www.meetup.com/unstructured-data-meetup-new-york/
This meetup is for people working in unstructured data. Speakers will come present about related topics such as vector databases, LLMs, and managing data at scale. The intended audience of this group includes roles like machine learning engineers, data scientists, data engineers, software engineers, and PMs.This meetup was formerly Milvus Meetup, and is sponsored by Zilliz maintainers of Milvus.
Adjusting OpenMP PageRank : SHORT REPORT / NOTESSubhajit Sahu
For massive graphs that fit in RAM, but not in GPU memory, it is possible to take
advantage of a shared memory system with multiple CPUs, each with multiple cores, to
accelerate pagerank computation. If the NUMA architecture of the system is properly taken
into account with good vertex partitioning, the speedup can be significant. To take steps in
this direction, experiments are conducted to implement pagerank in OpenMP using two
different approaches, uniform and hybrid. The uniform approach runs all primitives required
for pagerank in OpenMP mode (with multiple threads). On the other hand, the hybrid
approach runs certain primitives in sequential mode (i.e., sumAt, multiply).
1. Big Data
Big Data: an introduction
Dr. ir. ing. Bart Vandewoestyne
Sizing Servers Lab, Howest, Kortrijk
March 28, 2014
1 / 51
2. Big Data
Outline
1 Introduction: Big Data?
2 Big Data Technology
3 Big Data in my company?
4 IWT TETRA project
5 Conclusions
2 / 51
3. Big Data
Introduction: Big Data?
Outline
1 Introduction: Big Data?
2 Big Data Technology
3 Big Data in my company?
4 IWT TETRA project
5 Conclusions
3 / 51
5. Big Data
Introduction: Big Data?
Big Data definition
Definition of Big Data depends on who you ask:
Big Data
“Multiple terabytes or petabytes.”
(according to some professionals)
“I don’t know.”
(today’s big may be tomorrow’s normal)
“Relative to its context.”
5 / 51
6. Big Data
Introduction: Big Data?
Quotes on Big Data
“Big data” is a subjective label attached to situations in
which human and technical infrastructures are unable to
keep pace with a company’s data needs.
It’s about recognizing that for some problems other
storage solutions are better suited.
6 / 51
7. Big Data
Introduction: Big Data?
The Three V’s
Volume The amount of data is big.
Variety Different kinds of data:
structured
semi-structured
unstructured
Velocity Speed-issues to consider:
How fast is the data available for analysis?
How fast can we do something with it?
Other V’s: Veracity, Variability, Validity, Value,. . .
7 / 51
8. Big Data
Introduction: Big Data?
Structured data
Structured data
Pre-defined schema imposed on the data
Highly structured
Usually stored in a relational database system
Example
numbers: 20, 3.1415,. . .
dates: 21/03/1978
strings: ”Hello World”
. . .
Roughly 20% of all data out there is structured.
8 / 51
9. Big Data
Introduction: Big Data?
Semi-structured data
Semi-structured data
Inconsistent structure.
Cannot be stored in rows and tables in a typical database.
Information is often self-describing (label/value pairs).
Example
XML, SGML,. . .
BibTeX files
logs
tweets
sensor feeds
. . .
9 / 51
10. Big Data
Introduction: Big Data?
Unstructured data
Definition (Unstructured data)
Lacks structure or parts of it lack structure.
Example
multimedia: videos, photos,
audio files,. . .
email messages
free-form text
word processing documents
presentations
reports
. . .
Experts estimate that 80 to 90 % of the data in any
organization is unstructured.
10 / 51
11. Big Data
Introduction: Big Data?
Data Storage and Analysis
Storage capacity of hard drives has increased massively over
the years.
Access speeds have not kept up.
Example (Reading a whole disk)
Year Storage Capacity Transfer Speed Time
1990 1370 MB 4.4 MB/s ≈ 5 minutes
2010 1 TB 100 MB/s > 2.5 hours
Solution: work in parallel!
Using 100 drives (each holding 1/100th of the data),
reading 1 TB takes less than 2 minutes.
11 / 51
12. Big Data
Introduction: Big Data?
Working in parallel
Problems
1 Hardware failure?
2 Combining data from different disks for analysis?
Solutions
1 HDFS: Hadoop Distributed Filesystem
2 MapReduce: programming model
12 / 51
13. Big Data
Big Data Technology
Outline
1 Introduction: Big Data?
2 Big Data Technology
3 Big Data in my company?
4 IWT TETRA project
5 Conclusions
13 / 51
15. Big Data
Big Data Technology
Hadoop
Hadoop is VMware, but the other way around.
15 / 51
16. Big Data
Big Data Technology
Hadoop as the opposite of a virtual machine
VMware
1 take one physical server
2 split it up
3 get many small virtual
servers
Hadoop
1 take many physical servers
2 merge them all together
3 get one big, massive, virtual
server
16 / 51
17. Big Data
Big Data Technology
Hadoop: core functionality
HDFS Self-healing, high-bandwidth, clustered storage.
MapReduce Distributed, fault-tolerant resource management,
coupled with scalable data processing.
17 / 51
21. Big Data
Big Data Technology
Apache Hadoop essentials: technology stack
21 / 51
22. Big Data
Big Data Technology
Pig
MapReduce requires programmers
think in terms of map and reduce
functions,
more than likely use the Java language.
Pig provides a high-level language (Pig
Latin) that can be used by
Analysts
Data Scientists
Statisticians
Etc. . .
22 / 51
23. Big Data
Big Data Technology
Hive
Originated at Facebook to analyze log data.
HiveQL: Hive Query Language, similar to standard SQL.
Queries are compiled into MapReduce jobs.
Has command-line shell, similar to e.g. MySQL shell.
23 / 51
26. Big Data
Big Data Technology
RDBMS: Codd’s 12 rules
Codd’s 12 rules
A set of rules designed to define what is required from a database
management system in order for it to be considered relational.
Rule 0 The Foundation rule
Rule 1 The Information rule
Rule 2 The guaranteed access rule
Rule 3 Systematic treatment of null values
Rule 4 Active online catalog based on the relational model
. . . . . .
26 / 51
27. Big Data
Big Data Technology
ACID
ACID
A set of properties that guarantee that database transactions are
processed reliably.
Atomicity A transaction is all or nothing.
Consistency Only transactions with valid data.
Isolation Simultaneous transactions will not interfere.
Durability Written transaction data stays there “forever”
(even in case of power loss, crashes, errors,. . . ).
27 / 51
28. Big Data
Big Data Technology
Scaling up
What if you need to scale up your RDBMS in terms of
dataset size,
read/write concurrency?
This usually involves
breaking Codds rules,
loosening ACID restrictions,
forgetting conventional DBA wisdom,
loose most of the desirable properties that made RDBMS so
convenient in the first place.
NoSQL to the rescue!
28 / 51
29. Big Data
Big Data Technology
NoSQL
NoSQL
‘Invented’ by Carl Strozzi in 1998 (for his file-based database)
“Not only SQL”
It’s NOT about
saying that SQL should never be used,
saying that SQL is dead.
29 / 51
30. Big Data
Big Data Technology
NoSQL databases
Four emerging NoSQL categories:
30 / 51
31. Big Data
Big Data Technology
Us the right tool for the right job!
http://db-engines.com/
31 / 51
32. Big Data
Big Data in my company?
Outline
1 Introduction: Big Data?
2 Big Data Technology
3 Big Data in my company?
4 IWT TETRA project
5 Conclusions
32 / 51
33. Big Data
Big Data in my company?
Typical RDBMS scaling story
1. Initial Public Launch
From local workstation → remotely hosted MySQL instance.
2. Service popularity ↑, too many reads hitting the database
Add memcached to cache common queries. Reads are now no
longer strictly ACID; cached data must expire.
3. Popularity ↑↑, too many writes hitting the database
Scale MySQL vertically by buying a beefed-up server:
16 cores
128 GB of RAM
banks of 15 k RPM hard drives
Costly
33 / 51
34. Big Data
Big Data in my company?
Typical RDBMS scaling story
4. New features → query complexity ↑, now too many joins
Denormalize your data to reduce joins.
(Thats not what they taught me in DBA school!)
5. Rising popularity swamps the server; things are too slow
Stop doing any server-side computations.
34 / 51
35. Big Data
Big Data in my company?
Typical RDBMS scaling story
6. Some queries are still too slow
Periodically prematerialize the most complex queries, and try to
stop joining in most cases.
7. Reads are OK, writes are getting slower and slower. . .
Drop secondary indexes and triggers (no indexes?).
If you stay up at night
worrying about your database
(uptime, scale, or speed), you
should seriously consider
making a jump from the
RDBMS world to HBase.
35 / 51
36. Big Data
Big Data in my company?
Use-cases of Big Data
‘Core Big Data’ company
Big Data
crunching,
hacking,
processing,
analyzing,
. . .
‘General Big Data’ company
Business Analytics
improve decision-making,
gain operational insights,
increase overall
performance,
track and analyze
shopping patterns,
. . .
Both
Explore! Discover hidden gems!
36 / 51
37. Big Data
Big Data in my company?
Some examples
Intrusion detection based on
server log data
Real-time security analytics
Fraud detection
Customer behavior based
sentiment analysis of social
media
Campaign analytics
37 / 51
39. Big Data
IWT TETRA project
Outline
1 Introduction: Big Data?
2 Big Data Technology
3 Big Data in my company?
4 IWT TETRA project
5 Conclusions
39 / 51
40. Big Data
IWT TETRA project
IWT TETRA project
Data mining: van relationele database naar Big Data.
Dates
Submitted: 12/03/2014
Notification of acceptance: July, 2014
Runs from 01/10/2014 – 01/10/2016
People involved
Wannes De Smet (researcher)
Bart Vandewoestyne (researcher)
Johan De Gelas (project coordinator)
Interested? → Come talk to us!
40 / 51
41. Big Data
IWT TETRA project
Project plan, work packages
RDBMS vs.
Distributed
Processing
Technology
Choice
MapReduce &
Alternatives
Big Data
Stack
Analysis
BI
Optimization
Distributed
Processing
Optimization Infrastructure
& Cloud
Analysis
Dissemination
41 / 51
42. Big Data
IWT TETRA project
WP1: RDBMS vs. Distributed Processing
Key question
When to switch from a ‘traditional’ technology to ‘Big Data’
technology?
Evaluate traditional database systems (Virtuoso, VoltDB,. . . )
Find their limitations.
Strengths? Weaknesses?
42 / 51
43. Big Data
IWT TETRA project
WP2: Analyse Big Data technology stack
Key idea
Get acquinted with Hadoop and its most important software
components.
Find best way to setup, administer and use Hadoop.
Get familiar with most important software components (Pig,
Hive, HBase,. . . ).
Find out how easy it is to integrate Hadoop into existing
architectures.
43 / 51
44. Big Data
IWT TETRA project
WP3: Alternatives for MapReduce
Key question
What are valuable alternatives for MapReduce?
Faster querying (compared to Pig & Hive)
Lightning-fast cluster computing
Distributed and fault-tolerant realtime computation
Apache Storm
44 / 51
45. Big Data
IWT TETRA project
WP4: BI optimization
Key questions
Where can existing BI solutions be optimized?
How can current BI solution interact with Big Data
technology?
Virtuoso, MS SQL
Server 2014, VoltDB,. . .
Apache Sqoop
45 / 51
46. Big Data
IWT TETRA project
WP5: Distributed Processing optimization
Key question
Where can Big Data technology be performance tuned?
How is the data stored?
Optimal settings for Hadoop, MapReduce,. . .
Benchmarks such as TestDFSIO, TeraSort, NNBench,
MRBench,. . .
46 / 51
47. Big Data
IWT TETRA project
WP6: Infrastructure & Cloud analysis
Key question
What hardware best fits the (Big Data) needs?
Perform hardware monitoring.
Analyze cloud solutions.
Formulate best practices.
Give advice on hardware choice.
47 / 51
48. Big Data
IWT TETRA project
WP7: Dissemination & project follow-up
Key idea
Spread the message!
Document case-studies.
Prepare for education.
Presentations at events.
Blogs, articles,. . .
Workshops
48 / 51
50. Big Data
Conclusions
Conclusions
“Big” can be small too.
The Big Data landscape is huge.
The right tool for the right job!
We can help → advice, case studies
Your company can benefit from Big Data technology.
Be brave in your quest. . .
50 / 51