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ICDE
1998
IEEE
70views Database» more  ICDE 1998»
15 years 11 months ago
Point-Versus Interval-Based Temporal Data Models
The association of timestamps with various data items such as tuples or attribute values is fundamental to the management of time-varying information. Using intervals in timestamp...
Michael H. Böhlen, Renato Busatto, Christian ...
VLDB
2002
ACM
98views Database» more  VLDB 2002»
14 years 9 months ago
Processing Star Queries on Hierarchically-Clustered Fact Tables
Star queries are the most prevalent kind of queries in data warehousing, OLAP and business intelligence applications. Thus, there is an imperative need for efficiently processing ...
Nikos Karayannidis, Aris Tsois, Timos K. Sellis, R...
CIKM
2010
Springer
14 years 8 months ago
Third workshop on exploiting semantic annotations in information retrieval (ESAIR): CIKM 2010 workshop
There is an increasing amount of structure on the Web as a result of modern Web languages, user tagging and annotation, and emerging robust NLP tools. These meaningful, semantic, ...
Jaap Kamps, Jussi Karlgren, Ralf Schenkel
SIGMOD
2007
ACM
157views Database» more  SIGMOD 2007»
15 years 10 months ago
Compiling mappings to bridge applications and databases
Translating data and data access operations between applications and databases is a longstanding data management problem. We present a novel approach to this problem, in which the...
Sergey Melnik, Atul Adya, Philip A. Bernstein
EMNLP
2009
14 years 7 months ago
Generalized Expectation Criteria for Bootstrapping Extractors using Record-Text Alignment
Traditionally, machine learning approaches for information extraction require human annotated data that can be costly and time-consuming to produce. However, in many cases, there ...
Kedar Bellare, Andrew McCallum