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Vivisimo, an IBM Company
Industry Internet
Founded Pittsburgh, Pennsylvania
June 21, 2000 [1]
Headquarters Pittsburgh, Pennsylvania
Products Vivisimo Velocity Search Platform

Vivisimo was a privately held technology company in Pittsburgh, Pennsylvania, specialising in the development of computer search engines. The company was acquired[1] by IBM in May 2012 and is now branded as IBM Watson Explorer, a product of the IBM Watson Group. Vivisimo's public web search engine Clusty was a metasearch engine with document clustering; it was sold to Yippy, Inc. in 2010.

Vivisimo specialized in federated search and document clustering. Clustering divides the results of a search for "cell" into groups including "biology", "battery", and "prison".

Vivisimo software supported both structured and unstructured information.


Vivisimo was founded in 2000 by three computer science researchers at Carnegie Mellon University: Chris Palmer, Jerome Pesenti, and Raul Valdes-Perez. The name was taken from the Spanish superlative adjective vivĂ­simo meaning "very lively" or "very clever."

In October 2008, Vivisimo was awarded the contract to power the search portion of (now called, the official web portal of the United States federal government.[2]

In 2012, IBM acquired Vivisimo to boost its Big Data Analytics capabilities .[1][3][4][5]


Velocity was sold as an installed or hosted application to enterprises, governments, and OEMs. With Vivisimo providing additional professional services.

Velocity's social search features allowed users to contribute to organizational content by tagging, voting, annotating and sharing search results. The contributions are instantly indexed in new searches.


  1. ^ a b IBM Completes Acquisition of Vivisimo
  2. ^ Gary Price (2005-09-26). "Vivisimo and MSN to Power FirstGov". Search Engine Watch. Retrieved 2007-12-27.
  3. ^ Data discovery and exploration - IBM acquires Vivisimo
  4. ^ IBM Advances Big Data Analytics with Acquisition of Vivisimo
  5. ^ IBM Acquires Enterprise Search Software Company Vivisimo To Boost Big Data Analytics
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