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VLDB
1999
ACM
149views Database» more  VLDB 1999»
15 years 5 months ago
The Persistent Cache: Improving OID Indexing in Temporal Object-Oriented Database Systems
In a temporal OODB, an OID index (OIDX) is needed to map from OID to the physical location of the object. In a transaction time temporal OODB, the OIDX should also index the objec...
Kjetil Nørvåg
136
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CSCW
1998
ACM
15 years 5 months ago
Using Filtering Agents to Improve Prediction Quality in the GroupLens Research Collaborative Filtering System
Collaborative filtering systems help address information overload by using the opinions of users in a community to make personal recommendations for documents to each user. Many c...
Badrul M. Sarwar, Joseph A. Konstan, Al Borchers, ...
STOC
1998
ACM
139views Algorithms» more  STOC 1998»
15 years 5 months ago
Analysis of Low Density Codes and Improved Designs Using Irregular Graphs
In [6], Gallager introduces a family of codes based on sparse bipartite graphs, which he calls low-density parity-check codes. He suggests a natural decoding algorithm for these c...
Michael Luby, Michael Mitzenmacher, Mohammad Amin ...
AOSD
2007
ACM
15 years 4 months ago
Improve pointcut definitions with program views
Aspect-oriented programming languages select join points using pointcut constructs that depend on the syntactic structure of the base program. As the base program evolves, the poi...
Zifu Yang, Tian Zhao
AOSD
2007
ACM
15 years 4 months ago
Performance improvement for persistent systems by AOP
Efficient data retrieval from databases is a significant issue of the design of persistent systems. We propose an aspect oriented persistent system named AspectualStore. Aspectual...
Yasuhiro Aoki, Shigeru Chiba