How to search for most popular topics among documents
I crawl news feeds and store them in a database but now I want to index them with Lucene to make searches quicker and I also want to populate a list of the most written-about topics in the news articles (documents) of a certain date. In pseudo code I like to say
- Give me a list of the 20 most popular topics among the articles for 2011-04-25.
I plan to have the following fields ID, title, text, date, url
I hope you understand my question