Big Data Science

30 Apr 2024 17:58

🌎TOP DS-events all over the world in May
May 4 - SQL Saturday - Jacksonville, USA - https://sqlsaturday.com/2024-05-04-sqlsaturday1068/
May 7-9 - Real-Time Analytics Summit - San Jose, USA - https://www.rtasummit.com/
May 8 - Data Connect West - Portland, USA - https://www.dataconnectconf.com/dccwest/conference
May 8-9 - UNLEASH THE POWER OF YOUR DATA - Boston, USA - https://www.dbta.com/DataSummit/2024/default.aspx
May 8-9 - Data Innovation Summit - Dubai, UAE - https://mea.datainnovationsummit.com/
May 9 - Conversational AI Innovation Summit - San Francisco, USA - https://confx-conversationalai.com/
May 15-17 - World Data Summit - Amsterdam, The Netherlands - https://worlddatasummit.com/#up
May 16 - Spatial Data Science Conference 2024 - London, UK - https://spatial-data-science-conference.com/2024/london
May 18 - DSF MAYDAY - London, UK - https://datasciencefestival.com/event/mayday-2024/
May 21 - Deployment, Utilization & Optimization of Enterprise Generative AI - Silicon Valley, USA - https://ent-gen-ai-summit-west.com/events/enterprise-generative-ai-summit-west-coast
May 23-24 - The Data Science Conference - Chicago, USA - https://www.thedatascienceconference.com/

Big Data Science

26 Apr 2024 17:58

📉📊Selection of tools for working with Big Data
Drill - Layers on top of multiple data sources, allowing users to query a wide range of information in a variety of formats, from Hadoop sequence files and server logs to NoSQL databases and cloud-based object stores.
Druid (https://druid.apache.org/) is a real-time analytics database that provides low query latency, high concurrency, multi-user capabilities, and instant visibility into streaming data. According to its proponents, multiple end users can simultaneously query data stored in Druid without any performance impact.
HPCC Systems is a big data platform developed by LexisNexis and open sourced in 2011. In accordance with its full name - High-Performance Computing Cluster - the technology is essentially a cluster of computers created on the basis of standard hardware for processing, managing and delivering big data.
Iceberg is an open table format used to manage data in lakes, achieved in part by tracking individual files of information in tables rather than directories. Created by Netflix for use with its petabyte-sized tables, Iceberg is now an Apache project. Iceberg is typically "used in production, where a single table can contain tens of petabytes of data."
Kylin is a distributed information storage and analytics platform for big data. It provides an analytical information processing (OLAP) engine designed to work with very large data sets. Because Kylin is built on top of other Apache technologies, including Hadoop, Hive, Parquet and Spark, its proponents say it can easily scale to handle large volumes of data.
Samza is a distributed stream processing system created by LinkedIn and is currently an open source project managed by Apache. The system can run on top of Hadoop YARN or Kubernetes, and a standalone deployment option is also offered. According to the developers, Samza can process "several terabytes" of data state information with low latency and high throughput for fast analysis.

Big Data Science

22 Apr 2024 17:59

💡Dataset for detecting problems in code
SWE-bench is a dataset that was designed to provide a diverse set of codebase issues that could be verified using unit tests in repositories. The full SWE-bench split includes 2,294 issue-commit pairs across 12 python repositories.
Thus, the dataset offers a new task: solving problems in the presence of a complete repository and an issue on GitHub.
To load a dataset using a Python script, you can use the following command:
from datasets import load_dataset
dataset = load_dataset("princeton-nlp/SWE-bench")

Big Data Science

17 Apr 2024 17:59

😎💡Where can I get the data? Multiple open repositories
Awesome Data - Github repository. List of open datasets with direct download links. There is data with videos, pictures, audio, and everything in general.
Open ML is a source that includes 20k+ datasets. There are also libraries for Python and R.
Open Data Registry - data warehouse from AWS. There are some datasets here that you won't find anywhere else.
Papers with Code. - collections of datasets that were used in real studies
Dagshub - a repository in which Datasets are conveniently divided by application areas (NLP, CV, etc.)

Big Data Science

12 Apr 2024 17:59

😎📊Data used when training the MA-LMM model
MA-LMM (Memory-Augmented Large Multimodal Model) is a large memory-augmented multimodal model for understanding the context of long videos.
The model allows the use of long context by significantly reducing GPU memory usage. Instead of trying to process more frames at once, like most existing models, MA-LMM processes video online while storing past information in a memory bank.
The data on which the model was trained was made publicly available. This data consists of 2 very large datasets that can be downloaded from this link

Big Data Science

08 Apr 2024 17:59

📊📉Selection of Python libraries for working with spatial data
Earth Engine API - allows you to access Google Earth Engine's vast collection of geospatial data and perform analysis tasks using Python.
TorchGeo (PyTorch) - Provides tools and utilities for working with geospatial data in PyTorch.
Arcpy (Esri) is a Python library provided by Esri for working with geospatial data on ArcGIS platform. It allows you to automate geoprocessing tasks and perform spatial analysis.
Rasterio is a library for reading and writing geospatial raster datasets. It provides efficient access to raster data and allows you to perform various operations with geodata.
GDAL (Open-Source Geospatial Foundation) is a powerful library for reading, writing and manipulating geospatial raster and vector data formats.
Shapely is a library for geometric operations in Python. It allows you to create, manipulate and analyze geometric objects.
RSGISLib - has functions for processing thermal images, including radiometric correction, earth surface temperature estimation.
WhiteboxTools is a library for geospatial analysis and data processing. It offers a complete set of tools for tasks such as terrain analysis, hydrological modeling and LiDAR data processing.

Big Data Science

03 Apr 2024 17:59

⚔️Relational DBMS vs NOSQL DBMS: advantages and disadvantages
Database implementation is a fundamental element of modern information technology. In the world of databases, there are two main paradigms: relational DBMS and NoSQL DBMS. Each of them has its own advantages and disadvantages, which should be taken into account when choosing the right one for a particular task.
Relational databases are based on a data model known as the relational model. In such databases, data is stored in the form of tables, which consist of rows (records) and columns (fields). The data structure is defined by a predefined schema that describes the data types of each column.
Advantages of relational DBMS:
1. Data structure: Relational DBMS stores data in the form of tables, which makes it easy to understand and organized.
2. ACID properties: Guarantees atomicity, consistency, isolation and durability of transactions, making them reliable for applications that require a high degree of data integrity.
3. SQL Language: A powerful and widely used query language that provides standardization and ease of working with data.
Flaws:
1. Vertical scaling: Relational DBMSs can face vertical scaling limitations, which means that when they reach their performance limits they will have to be migrated to more powerful, and often more expensive, servers.
2. Schema Complexity: Changing the data schema can be difficult and require additional effort and time.
3. Difficulty of horizontal scaling: Even with data partitioning techniques, horizontal scaling of relational DBMSs can be complex and require additional configuration and optimization work.
NoSQL databases are designed to work with unstructured and semi-structured data. They offer a flexible data schema, which allows you to store data without explicitly defining the schema in advance.
Advantages of NOSQL:
1. Flexibility of data structure: NoSQL DBMSs allow you to store unstructured data, making them an ideal choice for applications with changing data requirements.
2. Horizontal scalability: Many NoSQL databases are designed to scale horizontally, making them suitable for handling large amounts of data and high workloads.
Flaws:
1. Lack of ACID properties: Unlike relational DBMSs, NoSQL databases can sacrifice some ACID properties in favor of performance and scalability.
2. Limited support for SQL query language: Some NoSQL DBMSs may have limited query language functionality, which can make it difficult to perform complex queries or analytical operations.
The choice between relational and NoSQL DBMS depends on the specific requirements and characteristics of the project. Relational DBMSs provide high data integrity, while NoSQL DBMSs allow you to work with large volumes of unstructured data and provide flexibility and scalability.

Big Data Science

29 Mar 2024 16:59

💡😎💊Google published a new dataset of skin condition images
SCIN is an open access dataset that contains data on skin condition. This dataset was collected from volunteer Google Search users in the United States using a special application.
SCIN contains 10,000+ images for common dermatological diseases. Materials include images, medical history and symptom information, and self-reported Fitzpatrick skin type.

📄Documentation

☁️Download link

Big Data Science

25 Mar 2024 16:58

💡😎Datasets for the task of converting text to sound
FAIR has released a project for a system for converting text into sound into the public domain.
In addition to the main project, there are also datasets in JSON format.
Detailed instructions for using datasets can be found here

Big Data Science

20 Mar 2024 16:59

⚔️😎💡ClickHouse vs Greenplum
Clickhouse and GreenPlum are well-known DBMSs for big data analysis that are very popular. However, there are criteria by which it is necessary to unambiguously choose which of the DBMS data to use in a given situation. To do this, let's look at their main advantages and disadvantages.
Advantages of ClickHouse:
1. High performance: ClickHouse is designed for analytical tasks and has a high speed of executing requests for reading large amounts of data. This makes it an ideal choice for data analytics and OLAP (Online Analytical Processing)
2. Efficient data compression: ClickHouse uses various data compression methods, which can significantly reduce the amount of stored information without loss of performance.
3. Horizontal scaling: ClickHouse easily scales horizontally, which allows you to increase system performance by adding new nodes.
Disadvantages of ClickHouse:
1. Limited transaction support: ClickHouse is mainly focused on analytical tasks and does not have full transaction support, which can be a problem for some applications.
2. Limited feature set: Despite its performance, ClickHouse may not be sufficient for some complex analytical tasks due to the limited set of built-in features.
Greenplum benefits:
1. Transaction Support: Greenplum provides full support for transactions and ACID (Atomicity, Consistency, Isolation, Durability), making it an ideal choice for OLTP (Online Transactional Processing) and OLAP applications.
2. Wide Range of Features: Greenplum offers a rich set of built-in features and analytical processing capabilities, making it suitable for various types of analytical tasks.
3. Support for distributed transactions: Greenplum provides support for distributed transactions and scales horizontally to handle large volumes of data.
Disadvantages of Greenplum:
1. Complexity to manage: Greenplum may require more effort and experience to manage and configure, especially when dealing with large clusters.
2. Less efficient data compression: Compared to ClickHouse, Greenplum may not provide the same high level of data compression, which may result in higher disk space usage and lower performance
Ultimately, the choice between ClickHouse and Greenplum depends on the specific needs of the task. ClickHouse is better suited for analytical workloads with high performance requirements, while Greenplum may be the preferred choice for applications where transaction support and a wide range of features are important.

Big Data Science

15 Mar 2024 16:59

💡⚔️Sensei will tell you
Sensei is a relatively new Python tool for generating synthetic data using systems such as OpenAI, MistralAI or AnthropicAII.
To start, you need to make the following preset:
pip install openai mistralai numpy
The developers also wrote detailed instructions for setup.

Big Data Science

10 Mar 2024 16:58

🌲💡New dataset about forests
FinnWoodlands is a dataset that includes 4226 manually annotated features, of which 2562 features (60.6%) correspond to tree trunks classified into three different instance categories, and namely "Spruce", "Birch" and "Pine".
In addition to tree trunks, there are object annotations "Obstacles", as well as semantic classes "Lake", "Earth" and "Path".
This dataset can be used in various applications where a holistic view of the environment is important. It provides an initial benchmark using three models for instance segmentation, panoptic segmentation, and depth filling.
Overall, FinnWoodlands consists of stereo RGB images, point clouds and sparse depth maps, as well as reference annotations for semantic segmentation.

Big Data Science

05 Mar 2024 16:59

📊💡DeltaLake: advantages and disadvantages
Delta Lake is an abstraction layer for working with data in data warehouses. Delta Lake provides additional capabilities and data integrity guarantees for storing and processing large volumes of data.
Delta Lake benefits:
1. Transactional Consistency: Delta Lake provides ACID transactions, ensuring transactional data consistency. This ensures reliable operations and data integrity management.
2. Partitioning: Delta Lake supports data partitioning, which improves query performance and data management. Partitioning allows you to effectively filter data based on certain criteria.
3. Improved Performance: Delta Lake optimizes queries and operations on data, leading to improved performance compared to conventional data warehouses.
4. Streaming Data Processing: Delta Lake supports streaming data processing, allowing you to instantly update and analyze data in real time.
Disadvantages of Delta Lake:
1. Difficulty in Setup: Some users may find it difficult to set up and use Delta Lake due to its advanced functionality.
2. Compatibility: Compatibility issues may arise when integrating Delta Lake with other tools and storage systems.
Overall, Delta Lake provides powerful tools for data management and processing, but its use should be considered based on the specific project requirements and team experience.

Big Data Science

24 Feb 2024 16:59

💡📊😎Dataset for virtual reality
Meta announced new projects in the field of artificial intelligence (AI) and an update to its Ego-Exo initiative, aimed at solving problems associated with technologies focused on providing a first-person perspective.
The company released a dataset called Ego-Exo4D. As the developers note, the project will help high-quality training of AI models with complex human skills and will be suitable for creating applications for virtual reality systems, robotics, and much more.
Ego-Exo4D contains three, carefully synchronized natural language datasets combined with video and expert commentary, including more than 1,400 hours of video, as well as benchmark annotations.

Big Data Science

16 Feb 2024 16:59

💡📊Startup for communication with databases
The team of the groql startup from Novosibirsk, the winner of the autumn session of A:START 2023, has developed an application that allows the user to communicate with databases in natural (Russian) language without programming experience and receive visualizations in the form of graphs, charts and graphs. Another advantage of the program is that it works on the basis of AI. Groql helps you translate a query from natural language to SQL. The user can describe the features of the databases and the AI will take them into account when working.
The main advantage of this startup is its visual presentation of data. After processing the request, the user will see a graphical representation of the data, which will help to better understand the relationships between various data. As the developers note, this can help the employer reduce costs by reducing time and simplifying work with data.
Read more: https://habr.com/ru/articles/791358/

Big Data Science

29 Apr 2024 17:58

💡Selection of ETL services for Big Data
Renta Marketing ETL - A cloud solution that allows you to integrate 28 enterprise data sources with popular data warehouses like Snowflake and BigQuery, the service allows a team of engineers and analysts to integrate third-party tools and create pipelines in a couple of minutes data without code. For example, you can set up Facebook Ads integration with BigQuery in four clicks. There is no need to involve developers to work with Renta Marketing ETL.
Fivetran - Cloud-based software that allows users to quickly and easily create pipelines. The platform supports more than 90 sources. Fivertran provides a set of ready-made integrations, so even novice developers can understand the service.
Hevo Data - the service provides users with more than 150 ready-made integrations. You can set up integrations in three simple steps. The result is a pipeline that copies data to storage and requires no maintenance.
Matillion is a low-code application for creating pipelines. With Matillion, teams can create pipelines and automate data processing. The service has a simple interface, so a user who is far from programming can create and change data. Marillion supports real-time processing. The tool supports popular data sources and makes it easy to identify and resolve data problems.
Supermetrics is an ETL solution designed for small businesses and marketers who primarily use Facebook Ads, Google Ads and Google Analytics. The tool has a built-in application on the Google Cloud Platform that allows you to export data directly to Google BigQuery.

Big Data Science

24 Apr 2024 17:59

📊😎💡🤖Dataset catalog for object detection and segmentation
SAM + Optical Flow = FlowSAM
FlowSAM is a new tool for detecting and segmenting moving objects in video, which significantly outperforms all previous models, both for a single object and for multiple objects
To train the model, many datasets were used, which became available for download at this link

Big Data Science

19 Apr 2024 17:59

💡SQL vs NoSQL: advantages and disadvantages
SQL and NoSQL are the two main approaches to data storage and processing. Each has its own advantages and disadvantages, and the choice between them depends on the specific needs of the project. Let's look at the main differences between them.
SQL (Structured Query Language) databases are relational databases as well as DBMS of the Hadoop ecosystem that use structured tables to store data.
Benefits of SQL:
1. Data structure: Tables, relationships and diagrams make data easily understandable and manageable.
2. ACID Consistency: SQL databases ensure compliance with ACID principles (atomicity, consistency, isolation, durability), ensuring transaction reliability.
3. Universal Query Language: SQL provides a rich and versatile set of tools for performing complex queries and analytics. In some DBMSs there may be only slight deviations in the form of SQL dialects
Disadvantages of SQL:
1. Horizontal scaling: Traditional SQL databases often face scaling limitations when dealing with large volumes of data.
2. Schema Complexity: Changing the data schema can be a complex and costly process.
3. Limited flexibility: Some SQL databases may have restrictions on data types or structures that may not be suitable for some types of data.
NoSQL databases, on the other hand, do not use traditional tables but instead offer flexible data models.
Advantages of NoSQL:
1. Data structure flexibility: NoSQL databases can easily scale and change without the need to rebuild the schema.
2. Horizontal scaling: Many NoSQL databases easily scale horizontally, providing high performance for large volumes of data.
3. Support for unstructured data: NoSQL databases are well suited for storing and processing unstructured data such as text, images and videos.
Disadvantages of NoSQL:
1. Lack of ACID support: Many NoSQL databases sacrifice ACID consistency for performance or flexibility.
2. Consistency Difficulty: When scaling and distributing data, NoSQL databases can face challenges maintaining data consistency.
Thus, depending on the project requirements and priorities for performance, scalability and flexibility, the choice between SQL and NoSQL databases may be different.

Big Data Science

15 Apr 2024 17:59

💡A large dataset for speech detection with a size of more than 150 thousand hours in 6000+ languages has been published
The dataset contains about 150 thousand hours of audio in more than 6,000 languages. The number of unique ISO codes in a given dataset does not coincide with the actual number of languages, since similar languages can be encoded with the same code.
The data was labeled for the voice detection task at a time sampling of approximately 30 milliseconds (or 512 samples at a sampling rate of 16 kilohertz).

Big Data Science

10 Apr 2024 17:59

💡😎📊Open Source Synthetic Text-to-SQL Dataset
Gretel releases largest open source Text-to-SQL dataset to speed up training of AI models
As of April 2024, the dataset is believed to be the largest and most diverse synthetic text-to-SQL conversion dataset available today, according to the developers.
The dataset contains approximately 23 million tokens, including approximately 12 million SQL tokens, and a wide range of SQL complexity levels, including subqueries, single joins, multiple joins, aggregations, window functions, and set operations.
To load a dataset via the Python API, you need to write the following script:
from datasets import load_dataset
dataset = load_dataset("gretelai/synthetic_text_to_sql")

Big Data Science

05 Apr 2024 17:59

📊😎💡The two largest open datasets for text recognition have been released
Data sets contain millions of real documents, images and texts for text recognition, analysis and document parsing tasks
VQA is a dataset used to develop and evaluate machine learning models capable of answering image-related questions. In the dataset, questions are assigned to each image, as well as the correct answers to these questions. This dataset is supplemented with annotations from Britten's idl_data project. The supplemented dataset can be loaded using a Python script:
from datasets import load_dataset
dataset = load_dataset("pixparse/idl-wds")
PDFA is a set of documents filtered from the SafeDocs corpus, aka CC-MAIN-2021-31-PDF-UNTRUNCATED. This corpus is intended for comprehensive analysis of pdf documents. The supplemented dataset can be loaded using a Python script:
from datasets import load_dataset
dataset = load_dataset("pixparse/pdfa-eng-wds")

Big Data Science

31 Mar 2024 17:59

🌎TOP DS-events all over the world in April
Apr 2-3 - Healthcare NLP Summit - Online - https://www.nlpsummit.org/healthcare-2024/
Apr 9 - Data Architecture New Zealand - Hilton Auckland - https://data-architecture-nz.coriniumintelligence.com/
Apr 9-11 - Google Cloud Next - Las Vegas, US - https://cloud.withgoogle.com/next
Apr 16 - CISO Perth - Perth, Australia - https://ciso-perth.coriniumintelligence.com/
Apr 17-18 - CDAO Germany - https://cdao-germany.coriniumintelligence.com/
Apr 17-18 - AI in Finance – New York, United States - https://ny-ai-finance.re-work.co/
Apr 22-24 - PyCon DE & PyData Berlin 2024 - Berlin, Germany - https://2024.pycon.de/
Apr 22-24 - Machine Learning Prague 2024 - Prague, Czech Republic - https://www.mlprague.com/
Apr 23-24 - The Martech Summit - Singapore - https://themartechsummit.com/singapore
Apr 23-25 - ODSC - Boston, USA - https://odsc.com/boston/schedule-overview/
Apr 24-25 - Gartner Data & Analytics Summit - Mumbai, India - https://www.gartner.com/en/conferences/apac/data-analytics-india
Apr 24-26 - Symposium on Intelligent Data Analysis (IDA) - Stockholm, Sweden - https://ida2024.org/

Big Data Science

27 Mar 2024 16:59

💡📊Training data used in ComCLIP
CLIP (Contrastive Language-Image Pre-Training) is a neural network developed by OpenAI to perform visual as well as language comprehension tasks. The algorithms aim to understand the relationship between text and images.
ComCLIP is an improved version of CLIP for matching text and graphic representations. ComCLIP can mitigate spurious correlations introduced by pre-trained CLIP models and dynamically estimate the importance of each component. Experiments were conducted on four datasets for compositional matching between images and texts.
These datasets are publicly available on the Internet and can be found at this link

Big Data Science

22 Mar 2024 16:59

📚💡Selection of books on various Big Data processing technologies
Spark: The Definitive Guide - the book tells learn how to use, deploy, and maintain Apache Spark with this comprehensive guide, written by the creators of the open-source cluster computing framework code.
Hadoop. Подробное руководство - a book in which it is described thoroughly and clearly You have all the features of Apache Hadoop.
Apache Kafka. Потоковая обработка и анализ данных - the book describes the design principles of the Big Data broker Kafka, reliability guarantees, key APIs and architectural details
Kubernetes в действии - the book talks in detail about Kubernetes - Google's open source software for automating the deployment, scaling and management of applications, scaling and management of Big Data applications
Cassandra: The Definitive Guide: Distributed Data at Web Scale - this guide explains how the Cassandra database management system processes hundreds of terabytes of data while maintaining high availability across multiple processing centers data
MongoDB: полное руководство - This book takes a detailed look at MongoDB, a powerful database management system. Here you can also learn how this secure, high-performance system provides flexible data models, high data availability and horizontal scalability.

Big Data Science

18 Mar 2024 16:58

📊😎💡Selection of services for working with Big Data and integration with various DBMSs
DBeaver is a service that is suitable for integration with various databases, such as MySQL or Oracle. This application is designed for database management. The JDBC interface helps it interact with relational databases. The DBeaver editor allows you to use a large number of additional plugins and gives hints on filling out the code, highlighting the syntax. The application manager supports over 80 databases.
Mixpanel is a system for analytics and analysis of user behavior. It includes features such as:
1. User segmentation
2. Send in-app notifications to your users
3. A/B testing for various notifications
4. Integrating custom surveys into applications via Mixpanel Surveys
App Annie is a service for analytics and obtaining reliable data to make important decisions at all stages of the mobile application business. App Annie will help you study competitors, market conditions, track app downloads, revenue, usage, engagement and advertising. The service also allows you to optimize products for app stores and increase the effectiveness of promotion methods, retention rates and effectively support your target audience. App Annie includes market analytics, multi-store app analytics, and competitor analytics.
Adjust is an optimizer for all product promotion processes. Collects information about where users came to your app page from. It provides a set of measurement and analytics tools that marketers can use to monitor and guide the development of their applications throughout the product lifecycle

Big Data Science

13 Mar 2024 16:59

😎📊Generic set of annotated images
The ImageNet dataset includes 14,197,122 annotated images structured according to the WordNet hierarchy.
Since early 2010, this dataset has been used in the ImageNet Large Scale Visual Recognition Challenge (ILSVRC) and serves as a standard for image classification and object detection tasks.
This large public dataset contains images that have been manually annotated for training purposes.

Big Data Science

06 Mar 2024 16:59

📊💡OAC: advantages and disadvantages
Oracle Analytics Cloud (OAC) is a powerful data analytics tool that delivers business intelligence capabilities in the cloud.
Benefits of Oracle Analytics Cloud:
1. Extensive data analysis capabilities: OAC provides a wide range of tools for data visualization, reporting and trend analysis. It integrates data from various sources, providing a comprehensive view of business processes.
2. Use of cloud technologies: Oracle Analytics Cloud is built on cloud technologies, which provides scalability and flexibility in processing large volumes of data. This also reduces the burden on the company's internal IT resources.
3. Integration with other Oracle products: OAC integrates well with other Oracle products such as Oracle Database, Oracle Cloud Infrastructure and others. This provides a single workspace for data and ensures compatibility with existing systems.
4. Data Security: Oracle Analytics Cloud provides a high level of data security, including encryption mechanisms and access control.
5. Automated Analysis and Machine Learning: OAC provides automated data analysis and machine learning integration capabilities that enable companies to identify hidden trends and predict future events.
Disadvantages of Oracle Analytics Cloud:
1. Implementation Difficulty: Deploying Oracle Analytics Cloud can be a complex process that requires specific technical skills. This can be challenging for smaller companies or organizations with limited resources.
2. Cost of Use: Paid OAC licenses and maintenance can be expensive for small businesses. It is necessary to carefully evaluate budgetary options before deciding to use this platform.
3. Limited UI Flexibility: Despite its extensive capabilities, OAC's user interface may be less flexible than some competitors, which can make it difficult to tailor to specific business needs.
Overall, Oracle Analytics Cloud is a powerful analytics solution, but companies must carefully weigh its advantages and disadvantages based on their business goals and technical capabilities.

Big Data Science

29 Feb 2024 16:59

🌎TOP DS-events all over the world in March
Mar 3-5 - Big Data Minds 2024 - Berlin, Germany - https://www.big-data-minds.eu/
Mar 3-5 - Annual Conference of the Association for Clinical Data Management - Copenhagen, Denmark - https://acdmconference.org/
Mar 6 - Admin & Data Forum 2024 - London, UK - https://event.professionalpensions.com/adminanddataforum/en/page/home
Mar 6-7 - Big Data & AI World - London, UK - https://www.bigdataworld.com/
Mar 13 - Data & Analytics in Healthcare 2024 - Melbourne, Australia - https://datainhealthcare.coriniumintelligence.com/
Mar 14 - Data Management Summit London - London, UK - https://a-teaminsight.com/events/data-management-summit-london/
Mar 17-21 - NVIDIA GTC 2024 - San Juse, USA - https://www.nvidia.com/gtc/
Mar 19-22 - KubeCon + CloudNativeCon - Paris, France - https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/
Mar 26-28 - Microsoft Data & AI Conference 2024 - Las Vegas, USA - https://azuredataconf.com/#!/
Mar 28 - Data and AI Summit 2024 - Richmond, USA - https://rvatech.com/rvatech-events/2024-rvatech-data-summit/

Big Data Science

22 Feb 2024 16:59

📊💡Dataset for setting up mathematical models
OpenMathInstruct-1 is a fresh synthetic dataset from NVIDIA, created for training mathematical models. This dataset includes 1.8 million problem-solution pairs intended for training.
As the developers note, this dataset was created by synthesizing code interpreter solutions for GSM8K and MATH, two popular calculus tests, using the recently released and permissively licensed Mixtral model.

Big Data Science

11 Feb 2024 16:59

💡Data storage vs. Data Lake: advantages and disadvantages
Data warehouses and Data Lakes are two different approaches to managing and storing data in an organization. Let's consider the main aspects of each of them.
Data store:
Advantages:
1. Structured Data: Data warehouses are usually designed to store structured data, making it easier to analyze and process.
2. Performance: Data warehouses use optimized structures to access data quickly, resulting in high query performance.
3. Ready to use: The data in the warehouse is pre-processed and organized, making it ready for use for business intelligence and reporting.
Flaws:
1. Limited data types: Data warehouses can be less flexible when dealing with diverse data types, such as unstructured or semi-structured data.
2. Difficulty scaling: As the volume of data increases, storing and processing it in a warehouse can become more complex and require additional resources.
Data Lake:
Advantages:
1. Flexibility in data types: Data Lake provides the ability to store unstructured and semi-structured data, making it suitable for a variety of data.
2. Scalability: Data Lake easily scales with the growth of data volume, providing increased performance and storage of large volumes of information.
3. On-the-fly data processing: The ability to analyze data in real time allows you to quickly use information for decision making.
Flaws:
1. Management Complexity: Managing a Data Lake may require more complex processes and strategies to avoid clutter and maintain data quality.
2. Unoptimized access: Since data in a Data Lake is stored in its original form, accessing it may require additional effort to optimize queries.
Thus, the choice between a data warehouse and a Data Lake depends on the unique needs of the business and the nature of the data. In some cases, the optimal solution may be a combination of both approaches, providing a comprehensive approach to data management in an organization.