Time-aware Collaborative Filtering with the Piecewise Decay Function

Details Time-aware Collaborative Filtering with the Piecewise Decay Function Time-aware Collaborative Filtering with the Piecewise Decay Function

2010-10-19

arxiv.org/abs/1010.3988v1

Computer Science

Information Retrieval

4 pages. 1 figure

Scientific paper

In this paper, we determine the appropriate decay function for item-based collaborative filtering (CF). Instead of intuitive deduction, we introduce the Similarity-Signal-to-Noise-Ratio (SSNR) to quantify the impacts of rated items on current recommendations. By measuring the variation of SSNR over time, drift in user interest is well visualized and quantified. Based on the trend changes of SSNR, the piecewise decay function is thus devised and incorporated to build our time-aware CF algorithm. Experiments show that the proposed algorithm strongly outperforms the conventional item-based CF algorithm and other time-aware algorithms with various decay functions.

Affiliated with

Also associated with

No associations

Rating

Time-aware Collaborative Filtering with the Piecewise Decay Function 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 Time-aware Collaborative Filtering with the Piecewise Decay Function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-aware Collaborative Filtering with the Piecewise Decay Function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-269592