387 search results - page 60 / 78 » 4 Perspectives on Web Information Systems |
EFDBS
2003
13 years 10 months ago
2003
A definition of types in an information system is given from ld abstractions through data constructs, schema and definitions to physical data values. Category theory suggests tha...
CIKM
2011
Springer
12 years 8 months ago
2011
Springer
We study the problem of detecting coordinated free text campaigns in large-scale social media. These campaigns – ranging from coordinated spam messages to promotional and advert...
WWW
2005
ACM
14 years 9 months ago
2005
ACM
This paper is concerned with the problem of definition search. Specifically, given a term, we are to retrieve definitional excerpts of the term and rank the extracted excerpts acc...
WWW
2008
ACM
14 years 9 months ago
2008
ACM
Online advertising is a rapidly growing, multi-billion dollar industry. It has become a significant element of the Web browsing experience. Ad platforms used for ad selection use ...
AGENTS
1999
Springer
14 years 27 days ago
1999
Springer
Most work on intelligent information agents has thus far focused on systems that are accessible through the World Wide Web. As demanding schedules prohibit people from continuous ...