Hi,I have a reqiment,i need to calculate the relation between the terms.for example
Term1 Term2 relation(Weight) iphone ipad 0.99999 iphone apple 0.88888 iphone food 0.33333 theare are a lot of term in my dictionary,about 600,000.it means that i must store about 600,000*(600,000-1) records.so it can not store in memory fully. and when i search iphone ,i must get top N terms(order by relation desc,get top n). does there have open source freamework to complete this reqiment?like Lucene to store and search the term's tf,df Thank you! 2011-07-18 mickey.guoyun