Google 搜索、FAST ESP 和 Lucene
有人遇到过或创建过各种企业搜索选项（例如 Google Search Appliance、Fast ESP、Lucene）之间的功能比较文档吗？
非常感谢任何有用的指针或链接。
Has anybody come across or created a functionality comparison document between the various enterprise search options like Google Search Appliance, Fast ESP, Lucene?
Any helpful pointers or links much appreciated.
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奇怪的是，我有。 它非常依赖于您的用例和 $$$ 要求，尽管这样的开放式问题毫无用处。 如果您需要 XML 索引以及 XPath 类型查询之类的功能，那么 FAST 是唯一的选择。 问题是，它的成本&&&&。 如果您没有大量硬件或资金，那么您将永远无法击败 Lucene 的搜索能力。 Lucene 的最大优势（除了它疯狂的快速索引/搜索之外）是它的可扩展性。 如果您有几个开发人员愿意编写自己的解析器、分词器和查询优化器，那么 Lucene 就没有限制。 但如果您需要几乎无需维护的 COTS 解决方案，那么 Goggle Appliance 就很难被击败。
Strangely enough I have, sort of. It's so dependent on your use case and $$$ requirements though that such an open ended question is pretty useless. If you need XML indexing, with things like XPath type queries, then FAST is the only way to go. Trouble is, it costs &&&. If you don't have a lot of hardware or $$$ then you will never beat Lucene's searching ability. Lucene's biggest strength (other then it's insanely fst indexing/searching) is it's extensibility. If you have a couple developers willing to write their own parsers, tokenizers, and query optimizers then there are no limits to Lucene. But if you need a COTS solution with almost no upkeep then the Goggle Appliance is pretty hard to beat.
他们已经做到了，而且非常有用。 关于 FAST 的一件事是，他们 (MS) 将一些组件移至 SharePoint 并停止了支持。
http://www.lightcrest.com/site_media/pdfs/Search-Comparison_Solr -FAST.pdf
They have and it's very useful. One thing about FAST is that, they (MS) moved some of components to SharePoint and discontinued support.
http://www.lightcrest.com/site_media/pdfs/Search-Comparison_Solr-FAST.pdf