I noticed the recent thread on cache busting. The last item mentioned by Shel Kaplan about the use of unique URLs can be probably a good motivation to use a different replacement policy than LRU. Lorenzo Viciano and I have a report on this at http://www.iet.unipi.it/~luigi/research.html/ which suggests a different policy called LRV which uses -- among other parameters -- the number of previous accesses to determine how valuable is a document. The nice thing about LRV is that the weight associated with the number of previous accesses to a document is evaluated dynamically by a proxy: if the percentage of documents with a single access increases, their weight decreases and they are purged earlier. Luigi ==================================================================== Luigi Rizzo Dip. di Ingegneria dell'Informazione email: luigi@iet.unipi.it Universita' di Pisa tel: +39-50-568533 via Diotisalvi 2, 56126 PISA (Italy) fax: +39-50-568522 http://www.iet.unipi.it/~luigi/ ====================================================================Received on Saturday, 30 November 1996 08:05:19 UTC
This archive was generated by hypermail 2.4.0 : Thursday, 2 February 2023 18:43:00 UTC