Small screen detected. You are viewing the mobile version of SlideWiki. If you wish to edit slides you will need to use a larger device.
Simple heuristic: for postings of length L, use √L evenly-spaced skip pointers.
This ignores the distribution of query terms.
Easy if the index is relatively static; harder if L keeps changing because of updates.
This definitely used to help; with modern hardware it may not (Bahle et al. 2002) unless you’re memory-based
The I/O cost of loading a bigger postings list can outweigh the gains from quicker in memory merging!
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License