Hi,
Could please explain me how to determine the tf-idf score for bigrams. My
program is able to index and search bigrams correctly, but it does not
calculate the tf-idf for bigrams. If someone can, please help me to resolve
this.
Regards,
Manjula.
TF is straight forward, you can simply count the no of occurrences in the
doc by simple string matching. For IDF you need to know total no of docs in
the collection and the no. of docs having the bigram. reader.maxDoc() will
give you the total no of docs in the collection. To calculate the number
Dear Parnab,
Thanks a lot for your guidance. I prefer to follow the second method, as I
have already indexed the bigrams using ShingleFilterWrapper. But, I have no
any idea about how to use NGramTokenizer here. So, could you please write
one or two lines of the code which shows how to use
