SIGMOD
2010
ACM
13 years 11 months ago
2010
ACM
In this paper we investigate techniques that allow for on-line updates to columnar databases, leaving intact their high read-only performance. Rather than keeping differential str...
PDP
2008
IEEE
14 years 5 months ago
2008
IEEE
This paper describes the design of a crawler devised to perform the periodic retrieval of Web documents for a search engine able to accept on-line updates in a concurrent manner. ...