Reading IR books

I will read the following IR related Book
I want to more think about the IR and
practice the text mining subject with new computer language

I before read the Lucene in Action first edition
therefore I want to read second edition rapidly

I feel that didn't make concentrate Nowadays


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Text Mining with perl
Lucene in Action 2edition
Natural language processing with Python
Solr CookBook
Solr Search Server
Hadoop in Action
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