IDF revisited: A simple new derivation within the Robertson-Spärck Jones probabilistic model

Details IDF revisited: A simple new derivation within the Robertson-Spärck Jones probabilistic model IDF revisited: A simple new derivation within the Robertson-Spärck Jones probabilistic model

2007-05-08

arxiv.org/abs/0705.1161v1

Computer Science

Information Retrieval

To appear, Proceedings of SIGIR 2007, poster paper (2 pages)

Scientific paper

There have been a number of prior attempts to theoretically justify the effectiveness of the inverse document frequency (IDF). Those that take as their starting point Robertson and Sparck Jones's probabilistic model are based on strong or complex assumptions. We show that a more intuitively plausible assumption suffices. Moreover, the new assumption, while conceptually very simple, provides a solution to an estimation problem that had been deemed intractable by Robertson and Walker (1997).

Affiliated with

Also associated with

No associations

Rating

IDF revisited: A simple new derivation within the Robertson-Spärck Jones probabilistic model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with IDF revisited: A simple new derivation within the Robertson-Spärck Jones probabilistic model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IDF revisited: A simple new derivation within the Robertson-Spärck Jones probabilistic model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-645155