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Published directory entries matching your search.
An arXiv paper on discovering skylines over hidden web databases whose search interfaces enforce a top-k output constraint. It examines how search interface controls affect discovery cost and develops algorithms for one-ended range, free range and point predicates, combined for mixed interfaces. Experiments over real-world online and offline databases are reported.
An arXiv paper on digging deeper into hidden web databases limited by the top-k output constraint. It presents the GetNext meta-algorithm, which retrieves the next ranked tuple through a restrictive interface without prior knowledge of the ranking function, and algorithms that generate and execute multiple reformulated queries. Theoretical analysis and experiments over synthetic and real-world databases are reported.
GeoLite databases and web services from MaxMind provide free geolocation and limited network data for IP addresses. The data is less accurate than MaxMind's paid GeoIP products. A free GeoLite account is required to download databases or query the web services, which use the same integration methods and documentation as GeoIP with minor modifications.
This arXiv paper by Dirk Lewandowski and Philipp Mayr provides a critical review of Bergman's 2001 study on the Deep Web. It introduces the concept of the Academic Invisible Web, defined as databases and collections relevant to academia but not searchable by general-purpose internet search engines, and reviews approaches for indexing it. The authors question Bergman's size estimate and suggest collaboration.
The Johns Hopkins Turbulence Database is a portal to an open numerical turbulence laboratory. It provides access to multi-terabyte turbulence databases stored in small 3D sub-cubes on distributed nodes, queried through web service interfaces. Python, Matlab, Fortran and C interfaces are offered, and data subsets can be downloaded in hdf5 format. Manual point queries are supported in a web browser.
Explains federated searching across government science databases often described as the deep web.
Federated search portal querying science databases and repositories across many countries.
A library support page explaining the invisible web, also called the deep web or hidden web. It states that search engines cover about 16% of the internet and advises against relying on them alone, especially for academic information. It lists content search engines cannot find, such as dynamically changing content, password protected resources and sites requiring registration, and suggests web directories and asking a librarian.
Guide to search tools and databases that surface information outside conventional web indexes.
Bravenet is a web services provider offering free web tools, web hosting, domains, email and a site builder called SiteBlocks. Its tools include contact forms, online calendars, counters and site stats, online stores, message forums and guestbooks. Hosting packages include domains, email accounts, databases, SSL certificates and one-click software installs.
Brew Great Coffee is a free collection of interactive brewing tools for home baristas and specialty coffee enthusiasts. It includes espresso and filter extraction compasses, a WCR flavor wheel, brew recipes and timers from Hoffmann, Rao, Kasuya and Hedrick, ratio calculators, and databases of origins, varieties and processing methods. Tools are based on established brewing science.
Cronometer is a nutrition tracking app for counting calories and tracking macro and micronutrients. It syncs with partner apps and devices and offers meal logging by photo, voice, text search or barcode scan. Nutrition data is sourced from lab-analyzed databases rather than crowd-sourced entries.
Fagan Finder is a comprehensive collection of online information-finding tools. It aggregates access to a wide range of search engines, databases, and encyclopedias, including alternative search engines, non-English search engines, utility tools, and region-specific Asian encyclopedias.
Bolt.new is an AI-powered builder for creating websites, applications, and prototypes. Users can build projects using text input, with built-in features including unlimited databases, user management and authentication, SEO optimization, hosting with analytics and custom domain support. It offers use cases for small businesses and enterprises, plus production-ready templates.
An open-source Linux server management panel with a web interface for managing Docker, websites, databases, and containers. It also provides AI management features and an app store for one-click deployment of open-source applications.
A tool that lets users connect databases and spreadsheets and ask questions in plain English instead of writing SQL. Supported sources include PostgreSQL, MySQL, MongoDB, SQL Server and Google Sheets. It provides instant answers, dashboards and reports, and automated workflows with alerts through Slack, email and webhooks.
AppFlowy is a self-hosted AI workspace for enterprise teams to manage projects, wikis, and data with private AI, flexible databases, and full data control. It runs on the user's infrastructure, in the cloud, or in a fully air-gapped environment. It is available on macOS, Windows, Linux, iOS, Android, and the web.
AskYourDatabase is a tool for querying SQL databases in natural language, returning SQL, answers, and charts. It supports PostgreSQL, MySQL, SQL Server, BigQuery, Snowflake, and other engines. Offerings include a Windows or macOS desktop app, an embeddable website chatbot, a dashboard builder, and a private deployment option for organizations with hosting or data-handling requirements.
ATHENA is a website created in 1994 at Geneva University that hosts French literature e-texts, with around 500 works and texts created at ATHENA since 1994, and a full mineral database with search programs. The mineral databases were created in 1986 and have been online since 1994, and include mineral and OpticMin searches. The site also provides search for ATHENA texts.
A community-driven curated list of Go frameworks, libraries and software, inspired by awesome-python. Its contents index categories including actor models, artificial intelligence, authentication, blockchain, build automation, command line tools, databases, distributed systems, game development, networking, testing and web frameworks, with contribution guidelines for suggesting changes.
Biblio-Graph is a web application designed for cultural libraries and archives. It acts as an interaction layer built on top of existing databases, with the purpose of opening institutional collections to make them more accessible and discoverable for a wider audience.
BioCASe is a transnational network of primary biodiversity repositories. It links specimen data from natural history collections, botanical and zoological gardens and research institutions worldwide with observation databases. The aim is to make biodiversity data freely accessible on the Internet through data portals and web services.
Check-Host.net is an online tool for checking the availability of websites, servers, hosts and IP addresses. It offers domain and IP location data from geolocation databases and whois, ping to measure latency and packet loss from servers worldwide, HTTP response checks, DNS record retrieval, TCP and UDP port checks, a subnet calculator, a live server terminal for diagnostics, and API documentation for building monitoring solutions.
Edbrowse is a text-based combination editor, browser, and mail client with an interface similar to /bin/ed. It was originally written for blind users but is also used by sighted users for its scripting capabilities. A batch or cron job can access web pages, submit forms, and send email without human intervention. Edbrowse can also access databases through ODBC.
