209 search results - page 31 / 42 » Derived Data Update in Semantic Databases |
KDD
2010
ACM
13 years 11 months ago
2010
ACM
We propose an online topic model for sequentially analyzing the time evolution of topics in document collections. Topics naturally evolve with multiple timescales. For example, so...
DBPL
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. Provenance is information recording the source, derivation, or history of some information. Provenance tracking has been studied in a variety of settings; however, althou...
SIGMOD
1999
ACM
13 years 12 months ago
1999
ACM
Recovery can be extended to new domains at reduced logging cost by exploiting "logical" log operations. During recovery, a logical log operation may read data values fro...
ACTAC
2008
13 years 7 months ago
2008
Rules provide an expressive means for implementing database behavior: They cope with changes and their ramifications. Rules are commonly used for integrity enforcement, i.e., for ...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
In recent years, the tourism assistance community is gradually shifting its emphasis to digital, interactive systems. Our project aims for digital tourism assistance by combining ...