Search Results for "algorithms"
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Showing 65 open source projects for "algorithms"
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VectorChord
Scalable, fast, and disk-friendly vector search in Postgres
VectorChord is an open-source vector database built for local and edge deployment. It supports efficient vector indexing and retrieval using ANN (approximate nearest neighbor) algorithms and is optimized for integration with LLM and AI applications. VectorChord is lightweight and can be embedded in a variety of environments for fast semantic search. -
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TimescaleDB
An open-source time-series SQL database optimized for fast ingest
...Don’t worry about cardinality. Simplify your stack, ask more complex questions, and build more powerful applications. Don’t break the bank. 94-97% compression rates from best-in-class algorithms. Downsample + retention policies. Decouple compute and storage. You’re in trusted hands. Fully-managed TimescaleDB on AWS, Azure, or GCP in just one click. Top-rated support and ops available 24/7 worldwide. A modern, cloud-native relational database platform for time-series data based on TimescaleDB and PostgreSQL. -
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TURF
A modular geospatial engine written in JavaScript
...Modular, simple-to-understand JavaScript functions that speak GeoJSON. Turf is a collection of small modules, you only need to take what you want to use. Takes advantage of the newest algorithms and doesn't require you to send data to a server. TypeScript definitions are packaged with each module. No DefinitelyTyped packages required. Turf uses GeoJSON for all geographic data. Turf expects the data to be standard WGS84 longitude, latitude coordinates. Check out geojson.io for a tool to easily create this data. -
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rust-rocksdb
Rust wrapper for rocksdb
...If you want to build it yourself, make sure you've also cloned the RocksDB and compression submodules. By default, support for the Snappy, LZ4, Zstd, Zlib, and Bzip2 compression is enabled through crate features. If support for all of these compression algorithms is not needed, default features can be disabled and specific compression algorithms can be enabled. The underlying RocksDB does allow column families to be created and dropped from multiple threads concurrently. But this crate doesn't allow it by default for compatibility. If you need to modify column families concurrently, enable crate feature called multi-threaded-cf, which makes this binding's data structures to use RwLock by default. -
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NutsDB
A simple, fast, embeddable, persistent key/value store written in Go
A simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set. It supports fully serializable transactions and many data structures such as list、set、sorted set. All operations happen inside a Tx. Tx represents a transaction, which can be read-only or read-write. Read-only transactions can read values for a given bucket and a given key or iterate over a set of key-value pairs.... -
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CogDB
Micro Graph Database for Python Applications
Cog is a lightweight, embedded graph database for Go that provides a simple interface for storing and querying graph-based data structures, making it useful for knowledge representation and graph analytics. -
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Reliable PostgreSQL Backup & Restore
Reliable PostgreSQL backup and restore
pgBackRest aims to be a reliable, easy-to-use backup and restore solution that can seamlessly scale up to the largest databases and workloads by utilizing algorithms that are optimized for database-specific requirements. Compression is usually the bottleneck during backup operations but, even with now-ubiquitous multi-core servers, most database backup solutions are still single-process. pgBackRest solves the compression bottleneck with parallel processing. Utilizing multiple cores for compression makes it possible to achieve 1TB/hr raw throughput even on a 1Gb/s link. ... -
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KeePass
A lightweight and easy-to-use password manager
...As a result, you only have to remember one single master password or select the key file to unlock the whole database. And the databases are encrypted using the best and most secure encryption algorithms currently known, AES and Twofish. See our features page for details. -
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URE
Universal Runtime Environment
The Universal Runtime Environment (URE) is a computer environment allowing all computer programmers in the world to develop their applications, systems and others easily thanks to its structure for debugging and executing programs written in different languages or different ways for the best understanding, security of the coded information or security of the syntaxes used by the programmers. For expert developers, the objective is to help them adapt their systems, integrated... -
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EasyQuizzer
Helping teachers around the world to create unique tests per student.
...EasyQuizzer stores all questions in a database management system. Subsequently, an exam is set up with the desired items. The program will then run randomization algorithms that will shuffle both the questions and the alternatives so that there are no two identical exams. Portuguese-Brazil Desenvolvido com o intuito de auxiliar professores a criar provas únicas para cada aluno. O EasyQuizzer armazena todos os seus dados em um Sistema Gerenciadorde de Bancos de Dados, a saber, o Postgres. O programa executa algoritmos de randomização de alternativas certas e erradas por questão, além de embaralhar questões e alternativas evitando que existam duas provas com o mesmo conjunto de alternativas. ... -
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Cipherbox
Cipherbox is a vault that utilizes six encryption algorithms.
...Please refer to https://sourceforge.net/projects/midbar/ or https://sourceforge.net/projects/midbar-firebase-edition/ Cipherbox was my attempt to build a multi-user Midbar. Cipherbox is what I consider to be a cryptographic swiss knife. It utilizes six encryption algorithms, and it's also a vault that's locked with four RFID cards, your username, and password. Github: https://github.com/Northstrix/Cipherbox Tutorials for: V1.0: https://www.instructables.com/Cipherbox/ V2.0: https://www.instructables.com/Cipherbox-V20/ V3.0: https://www.instructables.com/Cipherbox-V30/ V3.0 Lite: https://www.instructables.com/Cipherbox-V30-Lite/ -
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Record matching software
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C-squares
Concise spatial query and representation system (c-squares)
C-squares is an easily implemented method for storage, querying and display of spatial data locations, based on a hierarchical, grid-based representation of the Earth' surface. Source code for encoding, decoding, mapping, etc. is provided via this site. Additional support is available by contacting the system developer, Tony.Rees@marinespecies.org; see also the c-squares home page at http://www.cmar.csiro.au/csquares/ . -
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WikiSQL
A large annotated semantic parsing corpus for developing NL interfaces
A large crowd-sourced dataset for developing natural language interfaces for relational databases. WikiSQL is the dataset released along with our work Seq2SQL: Generating Structured Queries from Natural Language using Reinforcement Learning. Regarding tokenization and Stanza, when WikiSQL was written 3-years ago, it relied on Stanza, a CoreNLP python wrapper that has since been deprecated. If you'd still like to use the tokenizer, please use the docker image. We do not anticipate switching... -
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Graph Portal
Software to build web portals using concepts of Graph Theory
Graph Portal allows to organize many types of data so that you can get the information you want in the easiest way possible. There are many use cases for this software, including: building a web portal, creating mind map, wiki, studying graph theory concepts and algorithms,content management etc. The application has built-in Lucene search, custom query, file attachment to nodes etc. Graph Portal comes with an optional built-in security for authentication and role-based authorization. There are multiple levels of customization (depending on the technical skills of the customer) for branding the implementation to customer needs. ... -
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FastVersion
FastVersion is a Qgis plugin for data versioning in a Postgis database
...It allows to create, changes and eliminate versions, and within each version , to insert, modify and eliminate elements. It is possible carry out the processes of “post” from one version to another, with conflict resolution functionality. The system uses algorithms and data structures so that information is not duplicated each time a version is created. We recommend downloading it from the Qgis app. Plugins->Manage and Install Plugins->Settings->Show also experimental plugins Plugins->Manage and Install Plugins->Search FastVersion If downloaded from sourceforge, it must be unzipped in \.qgis2\python\plugins -
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ngx-datatable
A feature-rich yet lightweight data-table crafted for Angular
...It was built for modern browsers using TypeScript, CSS3 and HTML5 and Angular 8.0.0. This is the sister project of the angular-data-table that is designed for Angular 1.x. Intelligent Column Width Algorithms (Force-fill & Flex-grow). Fixed AND Fluid height. Left and Right Column Pinning. Row Detail View. Decoupled theme'ing with included Google Material theme. Light codebase / No external dependencies. AoT Compilation Support. Universal Support. Cell & Row Selection. -
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Devmap
Web developer development map
...Depending on what the data is and what you are going to do with it, one view will be better than the other. It is recommended that you familiarize yourself with the algorithms at least at a basic level. Since data structures are implemented with algorithms, algorithms are implemented with data structures. -
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Apache PredictionIO
Machine learning server for developers and ML engineers
Apache PredictionIO® is an open source Machine Learning Server built on top of a state-of-the-art open source stack for developers and data scientists to create predictive engines for any machine learning task. Quickly build and deploy an engine as a web service on production with customizable templates; respond to dynamic queries in real-time once deployed as a web service; evaluate and tune multiple engine variants systematically; unify data from multiple platforms in batch or in real-time... -
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JaQLib is a compact Java library that supports programmers in querying all sorts of collections, DBs and XML files in a compact and intuitive manner. Example: List<MyItem> result = Jaqlib.List.selectFrom(myCollection) .where(myCondition).asList()
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Graph-RAT is a database abstraction layer designed to make it easy to use a large library of graph-analysis routines on a database as well as add new kinds of algorithms to data mining.
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neural network designer
a dbms for neural nets. Chatbots, DTrees, random forests, n-grams,...
...It is probably best compared to a database management system, but for neural networks instead of relational data. As such, the library is optimized for handling any type of data-size by using advanced streaming and caching algorithms. With the designer, you are able to create different types of decision trees, random forests, n-grams, pattern-matchers, conversational agents and all sorts of AI related algorithms. You can combine statistical approaches as well as pattern matchers or others. Do natural language processing, image or data analysis & interpretation,... -
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A collection of implementations of the Paxos and FastPaxos algorithms for solving consensus in a network of unreliable processors. Visit http://libpaxos.sourceforge.net/ for more informations
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Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.
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Semantic query optimization (SQO) is the process of finding equivalent rewritings of an input query given constraints that hold in a database instance. We present a Chase & Backchase (C&B) algorithm strategy that generalizes and improves on well-known methods in the field. The implementation of our approach, the pegasus system, outperforms existing C&B systems an average by two orders of magnitude. This gain in performance is due to a combination of novel methods that lower the complexity...
