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How to extract a key from a "search query"?

I need to extract the keywords of a search query. For example, suppose one searches for "latest popular Nokia phones". I want to extract the keywords of this phrase. Are there any libraries written in Java to开发者_运维百科 get this done?


AFAIK the Apache Lucene is doing such a thing (removing words like a, an, the and so one). It provides also a Java-based indexing and search implementation, as well as spellchecking, hit highlighting and advanced analysis/tokenization capabilities and much more.

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