I have successfully implemented a Czech lemmatizer for Lucene. I'm testing it with Solr and it woks nice at the index time. But it doesn't work so well when used for queries, because the query pars...

When I try to search for something such as "workaround/fix" within Lucene, it throws this error: org.apache.lucene.queryparser.classic.ParseException: Cannot parse 'workaround/fix': Lexical error ...

I am working on a classification problem to classify product reviews as positive, negative or neutral as per the training data using Lucene API. I am using an ArrayList of Review objects - "review...

Most relational databases handles a JDBC / SQL query in four steps: Parse the incoming SQL query Compile the SQL query Plan/optimize the data acquisition path Execute the optimized query / ac...

I'm new to Lucene and trying to parse a raw string into a Query using the QueryParser. I was wondering, why is the QueryParser.Parse() method needs an Analyzer parameter at all? If analyzing is s...

I have a web application where users submit queries to a Lucene index. The queries are parsed by a Lucene QueryParser. I learned the hard way that QueryParser is not thread-safe. Is it better to ...