news digest
●Semantic Sense for the Desktop
A project brings Semantic Web technology to personal documents.
这篇是对Nepomuk Project的介绍，讲了语义桌面的出发点，之前的研究，此项目的的一些特点和方法，最后的有给出下载链接，不过安装不是一步到位的，需要些前期步骤。感兴趣的可以下载试试。
●Powerset Gives Microsoft Semantic Search Tools
结合Scott Prevost, general manager and product director at Powerset和Gartner Inc. analyst Rita Knox的观点的一篇文章。
After its Powerset acquisition, Microsoft is pushing semantic search as the replacement for traditional keyword search.
对语义检索和基于关键字检索的比较：”Current search technology just doesn’t leverage all of the affordances of Web 3.0-semantic Web, structured data, interoperability, collaborative filtering,” says Scott Prevost, general manager and product director at Powerset. “Keyword search just doesn’t address these things.” “Everything today is about the keywords,” Prevost told attendees. “And there are a lot of casualties in this keyword economy.”
对与powerset中NLP技术的来源：
Roots from PARC
Powerset relies on very deep natural language processing (NLP), technology that has been in the lab for 30 years but has only recently become computationally feasible because of high-performance computing technologies. Powerset’s semantic search app uses this technology-which the company licenses from Palo Alto Research Center (PARC)-to extract meaning from documents one at a time and encode that meaning into its index. Meaning and intent are extracted from queries at runtime. Matching the meaning of those queries with the meaning in the index renders better search results, he says.
Rita Knox 将语义搜索定义为利用基于用户寻找信息所包含的，而机器自身不能掌握的微妙的语义为线索的搜索。
Gartner Inc. analyst Rita Knox defines semantic searches as those that use clues about the information users are seeking based on semantic subtleties that machines have yet to master on their own.
“When pieces of information are labeled, computers can see what they mean; but most information is not labeled-it’s unstructured,” Knox says. “Without the labels or tags, computers are at a loss to make a human kind of sense out of things like text. The promise of semantic search is that it will provide that understanding to the machines, and that will result in more meaningful and relevant search results.”
另外，Open APIs Coming??
