编辑“︁Powerset”︁

{{Update|time=2025-05-01T13:37:30+00:00}}
{{Infobox Company
 | company_name     = Powerset
 | logo             = 
 | type             = [[私营公司]]
 | genre            = 
 | foundation       = [[圣弗朗西斯科]]，[[美国]] (2005)
 | founder          = 
 | location_city    = [[圣弗朗西斯科]]
 | location_country = [[美国]]
 | location         = [[圣弗朗西斯科]]，[[美国]]
 | locations        = 
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 | key_people       = 
 | industry         = 
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 | market cap       =
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 | assets           = 
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 | owner            = 
 | num_employees    = 
 | parent           = [[微软]] (自2008年8月1日起)
 | divisions        = 
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 | homepage         = [http://www.powerset.com www.powerset.com]
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}}

'''Powerset''' 是一家位于加州[[圣弗朗西斯科]]的公司，正在开发[[互联网]]上的[[自然语言搜索引擎]]。<ref>{{cite news|title=In Silicon Valley, the Race Is On to Trump Google|first=Miguel|last=Helft|publisher=''[[The New York Times]]''|date=2007-01-01|url=http://www.nytimes.com/2007/01/01/technology/01search.html?ex=1168232400&en=ad47077c00fe61f4&ei=5099&partner=TOPIXNEWS|accessdate=2010-03-15|archive-date=2018-11-28|archive-url=https://web.archive.org/web/20181128075901/https://www.nytimes.com/2007/01/01/technology/01search.html?ex=1168232400&en=ad47077c00fe61f4&ei=5099&partner=TOPIXNEWS|dead-url=no}}</ref>

Powerset致力于构建一个能回答用户问题的[[自然语言搜索引擎]](区别于基于关键字的搜索)。举个例子，当用户输入一个问题，"Which United Statesstate has the highest income tax?"，通常搜索引擎会忽略掉疑问词，进而使用[[关键字]] "state"、 "highest"、"income"和"tax"来搜索。Powerset与之不同，它试图通过自然语言处理来理解问题的本质，并返回含有答案的网页。

现在，这家公司正在"构建一个能读入和理解Web所有句子的自然语言搜索引擎"。<ref>{{cite web|url=http://blog.powerset.com/2007/9/17/powerset-launches-powerset-labs-at-techcrunch40|title=Powerset Blog: Powerset launches Powerset Labs at TechCrunch40|accessdate=2008-03-04|deadurl=yes|archiveurl=https://web.archive.org/web/20071030095833/http://blog.powerset.com/2007/9/17/powerset-launches-powerset-labs-at-techcrunch40|archivedate=2007-10-30}}</ref> 这家公司从[[PARC (company)|PARC]], 之前的[[Xerox]] [[帕羅奧多研究中心]]取得自然语言技术的授权。<ref>{{cite news|url=http://www.nytimes.com/2007/02/09/technology/09license.html?_r=1&oref=slogin|publisher=''[[The New York Times]]''|date=2007-02-09|last=Helft|first=Miguel|title=In a Search Refinement, a Chance to Rival Google|accessdate=2010-03-15|archive-date=2014-04-10|archive-url=https://web.archive.org/web/20140410114116/http://www.nytimes.com/2007/02/09/technology/09license.html?_r=1&oref=slogin|dead-url=no}}</ref>

2008年5月11日，这家公司开放了一个搜索[[维基百科]]特定的部分页面的小工具，它使用常用的语句而不是关键字。<ref>{{Cite web |title=Powerset Debuts With Search of Wikipedia |url=https://archive.nytimes.com/bits.blogs.nytimes.com/2008/05/12/powerset-debuts-with-search-of-wikipedia/ |website=[[纽约时报]] |date=2008-05-12 |language=en |last=Helft |first=Miguel |access-date=2024-11-14 |archive-date=2024-09-19 |archive-url=https://web.archive.org/web/20240919085418/https://archive.nytimes.com/bits.blogs.nytimes.com/2008/05/12/powerset-debuts-with-search-of-wikipedia/ |dead-url=no }}</ref> 

2008年7月1日，[[微软]]签署协议收购了Powerset。<ref>{{Cite web |url=http://www.powerset.com/blog/articles/2008/07/01/microsoft-to-acquire-powerset |title=Powerset Blog : Microsoft to Acquire Powerset<!-- Bot generated title --> |accessdate=2010-03-15 |archive-date=2009-02-25 |archive-url=https://web.archive.org/web/20090225064356/http://www.powerset.com/blog/articles/2008/07/01/microsoft-to-acquire-powerset |dead-url=no }}</ref>

==Powerlabs==
通过[[beta测试]]方式，2007年9月17日，Powerset开放了一个叫[[Powerlabs]]的在线社区 。 ''[[Business Week]]''说，"这家公司希望这个网站能够集合数千人来帮助构建和改进它的搜索引擎，以迎接来年的公开服务。"<ref>{{cite news|url=http://www.businessweek.com/technology/content/sep2007/tc20070917_676790.htm?chan=top+news_top+news+index_businessweek+exclusives|title=Powerset: Move Over, Google|publisher=''[[Business Week]]''|last=Hof|first=Robert|date=2007-09-17|deadurl=yes|archiveurl=https://web.archive.org/web/20080415045650/http://www.businessweek.com/technology/content/sep2007/tc20070917_676790.htm?chan=top+news_top+news+index_businessweek+exclusives|archivedate=2008-04-15|accessdate=2010-03-15}}</ref> 。 ''[[纽约时报]]''说: "[Powerset Labs]比大多数软件项目的alpha测试和beta测试更进一步，别的软件项目把产品放在严苛的环境下工作以便找出其漏洞，Powerset还没有一个产品，它是一个自然语言技术的集合， 这些技术来自于Xerox PARC数年的研究成果。"<ref>{{cite news|title=Powerset to Skeptics: Try Us|publisher=''The New York Times''|last=Helft|first=Miguel|url=http://bits.blogs.nytimes.com/2007/09/17/powerset-to-skeptics-try-us/|date=2007-09-17|accessdate=2010-03-15|archive-date=2008-02-13|archive-url=https://web.archive.org/web/20080213150242/http://bits.blogs.nytimes.com/2007/09/17/powerset-to-skeptics-try-us/|dead-url=no}}</ref>

Powerlabs的初始搜索结果来自[[维基百科]]。<ref>{{cite web|publisher=SFgate.com ''([[San Francisco Chronicle]])''|url=http://www.sfgate.com/cgi-bin/blogs/sfgate/detail?blogid=19&entry_id=20341|title=Power is turned on, a bit, at Powerset|date=2007-09-17|accessdate=2010-03-15|archive-date=2008-12-23|archive-url=https://web.archive.org/web/20081223191823/http://www.sfgate.com/cgi-bin/blogs/sfgate/detail?blogid=19&entry_id=20341|dead-url=no}}</ref>

==人物==
===Barney Pell===
'''Barney Pell''' (1968年3月18日出生于加州[[Hollywood]])<ref name="nasa">{{cite web|url=http://ic.arc.nasa.gov/projects/Executive/team/barney/history.html|title=Barney Pell's Personal History|accessdate=2008-02-16|deadurl=yes|archiveurl=https://web.archive.org/web/20061014112552/http://ic.arc.nasa.gov/projects/Executive/team/barney/history.html|archivedate=2006-10-14}}</ref>，是Powerset的创始人和CTO。Pell于1989年在斯坦福大学获得符号系统（symbolic systems）的学士学位，本科期间完成了[[Phi Beta Kappa]]，并且是一名[[National Merit Scholar]]。1993年，Pell在剑桥大学获得计算机科学专业的博士学位，攻读博士期间他是[[Marshall Scholar]]<ref name="pellblog">{{cite web |url=http://www.barneypell.com/ |title=Barney Pell's Weblog |accessdate=2008-02-16 |deadurl=yes |archiveurl=https://web.archive.org/web/20080228164051/http://www.barneypell.com/ |archivedate=2008-02-28 }}</ref>。他曾在[[NASA]]工作。

==参考资料==
{{reflist|2}}

==外部链接==
*[https://web.archive.org/web/20080409210043/http://www.powerset.com/ Powerset主页]

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[[Category:網路搜尋引擎]]
[[Category:自然語言處理]]
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