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Cross-platform open-source desktop search engine. Unmaintained since 2011-06-02 [9]. LGPL v2 [10] Terrier Search Engine: Linux, Mac OS X, Unix: Desktop search for Windows, Mac OS X (Tiger), Unix/Linux. MPL v1.1 [11] Tracker: Linux, Unix: Open-source desktop search tool for Unix/Linux GPL v2 [12] Tropes Zoom: Windows: Semantic Search Engine (no ...
Web search engines are listed in tables below for comparison purposes. The first table lists the company behind the engine, volume and ad support and identifies the nature of the software being used as free software or proprietary software.
DuckDuckGo is an American software company focused on online privacy, whose flagship product is a search engine of the same name. Founded by Gabriel Weinberg in 2008, its later products include browser extensions [6] and a custom DuckDuckGo web browser. [7]
A one-time giant in the internet world, Excite was founded in 1994 by six Stanford students. While also a general search engine, Excite allowed internet users to visit a single page and see news ...
Robin Li developed the RankDex site-scoring algorithm for search engines results page ranking [23] [24] [25] and received a US patent for the technology. [26] It was the first search engine that used hyperlinks to measure the quality of websites it was indexing, [27] predating the very similar algorithm patent filed by Google two years later in ...
Startpage is a Dutch search engine company that highlights privacy as its distinguishing feature. [1] [2] [3] The website advertises that it allows users to obtain Bing Search and Google Search results while protecting users' privacy by not storing personal information or search data and removing all trackers. [4]
Convera was formed in December 2000 by the merger of Intel's Interactive Services division and Excalibur Technologies Corporation. Until 2007, Convera's primary focus was the enterprise search market through its flagship product, RetrievalWare, which is widely used within the secure government sector in the United States, UK, Canada and a number of other countries.
A search engine maintains the following processes in near real time: [34] Web crawling; Indexing; Searching [35] Web search engines get their information by web crawling from site to site. The "spider" checks for the standard filename robots.txt, addressed to it. The robots.txt file contains directives for search spiders, telling it which pages ...