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Build your own federated search engine

Sesat is an open sourced Search Middleware with federation capabilities and a built-in search portal framework. Sesat enables a single user query to be dispatched to multiple information sources. These results can be analysed, weighted, federated, and clustered before being presented to the user according to declarative business rules.

  • Sesat is the core technology used to power http://sesam.no and http://sesam.se, which are scandinavian search, news and directory sites that utilise a large number of data sources including Yahoo!, PicSearch, Solr (Lucene), Youtube, and enterprise search systems from FAST.
  • Sesat makes it easy to build applications that look for information in many different places simultaneously. Sesat can connect to almost any kind of data source that can be accessed using Java - databases, search indexes, files, back office systems, web services, ESBs. Similar product examples are FAST Unity, WebFeat, DeepWeb Explorit, dbWIZ, Carrot2, and Raritan SIFT.
  • Sesat takes care of all the complex tasks of communicating with multiple search indexes simultaneously, query- and result analysis, business rules application; leaving the developers to focus on other aspects of their application, such as presentation and usability.
  • Sesat is developed in an open environment and released under the Affero General Public License. We invite you to participate in this open development project.
Showcases    

sesam.no is the portal that initiated the development of Sesat. The presentation layer is made by front end developers using the Velocity templating language. Each search on sesam.no results in several parallel searches in different data sources. When all search results have been collected, Sesat invokes the relevant templates and displays the result to the user. Sesam.no uses technology from Yahoo!, FAST and PicSearch,.
Sesam.no was launched november 2005.

vg.sesam.no is the largest newspaper in Norway, hosting Norways most popular website. By using Sesat, Sesam.no has created both a tv-guide and a news service for VG, all running on Sesam.no's platform, but with VG look-and-feel.

katalog.finn.no is the commercial catalogue to Norway's 4th largest website.

News

Title Author Date Posted
Sesam migrates all indexes from FAST to Solr Mck . sep 29, 2009
Lucene and Solr patches accepted mick jan 31, 2009
Sesat 2.18 - "The acquisition of wealth is no longer the driving force in our lives." mick des 03, 2008
Sesat 2.18 - "The acquisition of wealth is no longer the driving force in our lives." mick nov 20, 2008
federatedsearchblog.com - "New open source federated search middleware released" mick jul 09, 2008
Sesat on Sourceforge mick apr 28, 2008
Sesat on Freshmeat mick apr 28, 2008
Sesat 2.17 - "Are we human because we gaze at the stars or do we gaze at the stars because we are human?" mick apr 22, 2008
Sesat 2.17 - "Are we human because we gaze at the stars or do we gaze at the stars because we are human?" mick apr 08, 2008
jaxmag.com - Search Middleware Portal Generally Available To Access Data Source mick apr 03, 2008
Sesat, a federated search solution middleware, goes open source mick mar 31, 2008
Cominvent - Norweigan search portal Sesam.no releases middleware as GPL mick mar 30, 2008
DIGG - Build your own search engine with SESAT mick mar 30, 2008
Sesambloggen - Sesam Search Application Toolkit (SESAT) available as Free Software mick mar 21, 2008
Digi.no - Sesam deler ut kildekoden mick mar 21, 2008
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