Alternatives to conjunctive query processing in peer-to-peer file-sharing systems
Wai Gen Yee, Linh Thai Nguyen, Ophir Frieder · 2009
Peer-to-peer file-sharing systems suffer from the over-specification of query results due to the fact that query processing is conjunctive and the descriptions of shared files are sparse. Ultimately, longer queries, which should yield more accurate results, do the opposite. To alleviate this problem, we consider alternative means of query processing. That is, results are sent from the server to the client only if they are deemed relevant based on cosine similarity. Based on our results, these alternatives can increase query accuracy by 40% at virtually no cost.