Content deleted Content added
Tag: Reverted |
|||
Line 13:
; Merge factors: How data enters the index, or how words or subject features are added to the index during text corpus traversal, and whether multiple indexers can work asynchronously. The indexer must first check whether it is updating old content or adding new content. Traversal typically correlates to the [[Web crawling|data collection]] policy. Search engine index merging is similar in concept to the [[Merge (SQL)|SQL Merge]] command and other merge algorithms.<ref>Brown, E.W.: Execution Performance Issues in Full-Text Information Retrieval. Computer Science Department, University of Massachusetts Amherst, Technical Report 95-81, October 1995.</ref>
; Storage techniques: How to store the index [[data]], that is, whether information should be data compressed or filtered.Read more [https://agtsipk.com/ here]
; Index size: How much [[Computer data storage|computer storage]] is required to support the index.
; Lookup speed: How quickly a word can be found in the [[inverted index]]. The speed of finding an entry in a data structure, compared with how quickly it can be updated or removed, is a central focus of computer science.
| |||