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Rivestack offers managed pgvector on dedicated PostgreSQL with local NVMe storage, keeping vectors and application rows in one database. It provides tuned HNSW and StreamingDiskANN indexes, always-on compute with no cold starts, and migration help. Published measurements cover search latency and throughput. New customers get a 7-day free trial, then a plan from $29 per month.
A community-driven collection of roadmaps, articles and guides intended to help developers grow in their careers. It offers role-based and skill-based roadmaps, best practices and guides, covering topics such as frontend, backend, full stack, DevOps, data analysis and machine learning, and allows searching available roadmaps.
The Rossetti Archive is a hypermedia archive presenting the complete writings and pictures of Dante Gabriel Rossetti. It provides access to his pictorial and textual works alongside a contextual corpus of materials, most from approximately 1848-1920, and documents are encoded for structured search and analysis. It is edited by Jerome J. McGann and freely distributed.
ruby-plot is a Ruby wrapper around gnuplot, especially for plotting ROC curves into SVG files. It requires gnuplot to be installed and has had no release in over three years.
Ruffus is an open-source computation pipeline library for Python, used in science and bioinformatics. It is designed to automate scientific and other analyses with a lightweight, standard-Python syntax, and can be installed from the Python Package Index.
The Saccharomyces Genome Database (SGD) is a resource providing integrated biological information for the budding yeast Saccharomyces cerevisiae. It offers search and analysis tools for exploring these data, supporting the discovery of functional relationships between sequence and gene products in fungi and higher organisms. Gene pages include literature, interaction, protein and regulation information.
Analyzes structured data and helps produce queries, insights or visualizations.
The Beckett Digital Manuscript Project is a collaboration between manuscript and textual research centres to reunite the manuscripts of Samuel Beckett's works in digital form. It brings together digital facsimiles of documents held in different libraries and adds transcriptions, tools for bilingual and genetic version comparison, a search engine, and analysis of textual genesis. Access to the archive requires an access code.
Analyzes structured data and helps produce queries, insights or visualizations.
The SCC Open Data Site is an ArcGIS Hub platform that provides access to downloadable datasets in formats including CSV, KML, Zip, GeoJSON, GeoTIFF and PNG. It offers API links for GeoServices, WMS and WFS, supports data analysis with charts and thematic maps, and enables users to create StoryMaps and Web Maps using the available data.
Scholarcy is a tool for summarizing and organizing research, built around AI-powered tools described as made specifically for academic papers. It converts long texts into interactive summary flashcards highlighting key information, and accepts imports including PDFs, book chapters, articles, Zotero, Google Drive and YouTube. Summaries can be enhanced and exported to other apps and citation managers.
Sci-Bot is an AI-powered research assistant powered by Sci-Hub. It is currently in temporary read-only maintenance mode, allowing users to browse previously answered questions but not submit new questions or sign in. It supports multiple languages, several citation formats, and adjustable generation speed.
The Science Data Centre (SDC) of the Leibniz-Institute for Solarphysics is a service for storing and managing openly accessible processed solar observation data and MHD simulations. It focuses on curation, archiving and distribution of ground-based solar data from telescopes at the El Teide Observatory on Tenerife, and on developing pipelines and analysis tools. An online archive is available.
SciRuby is a project providing tools for scientific computing and data visualization in Ruby. Its releases include NMatrix, a linear algebra library with dense and sparse matrix storage and tensor support, alongside visualization and statistics gems. The project describes itself as currently alpha, and it notes its gems are tested but not battle-hardened. SciRuby and NMatrix are available under the BSD three-clause license.
The Solar Data Analysis Center (SDAC) at NASA Goddard Space Flight Center serves solar images, solar news, solar data, and solar research. It develops and maintains scientific research infrastructure supporting NASA's Heliophysics Science Division. Data from the PUNCH mission is available via the Virtual Solar Observatory and direct download, and the site links to the SOHO project and Solar Monitor.
Seaborn is a Python data visualization library based on matplotlib. It provides a high-level interface for drawing statistical graphics, and covers relational, distribution, categorical, regression and multi-plot grids, along with figure theming and color palettes.
Research and explainers on dark-web investigations, criminal forums and threat-intelligence methods.
Seeing Theory is an archived site offering a visual introduction to probability and statistics through interactive visualizations. It covers six chapters: basic probability, compound probability, probability distributions, frequentist inference, Bayesian inference and regression analysis. It was created by Daniel Kunin while an undergraduate at Brown University.
Chroma - Open-source search and retrieval database for AI applications. Vector, full-text, regex, and metadata search. or Cloud available.
Global news publication focused on politics, business, geopolitics and differing international perspectives.
SEO Gets is a Google Search Console and GA4 analytics tool for SEO professionals. It offers a master dashboard consolidating search console websites, content groups, striking distance, cannibalization and content decay analysis, index reporting and monitoring, and an MCP server for plugging SEO data into AI assistants. Magic share links share dashboards without requiring account creation.
SEO Minion tracks rankings, SERP visibility, and keyword performance across search results.
SEO Review Tools helps plan, write, optimize, or analyze content for SEO and search visibility.
SEO Search Simulator tracks rankings, SERP visibility, and keyword performance across search results.
