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» Temporal Queries in OLAP
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COMAD
2008
15 years 5 months ago
Query Heartbeat: A Strange Property of Keyword Queries on the Web
This paper illustrates a strange property that was encountered when analysing keyword query data. The objective of this work was to observe the temporal properties of keyword quer...
R. Karthik, Aditya Ramana Rachakonda, Srinath Srin...
ICDE
1994
IEEE
87views Database» more  ICDE 1994»
15 years 8 months ago
Implementing Calendars and Temporal Rules in Next Generation Databases
In applications like nancial trading, scheduling, manufacturing and process control, time based predicates in queries and rules are very important. There is also a need to de ne ...
Rakesh Chandra, Arie Segev, Michael Stonebraker
SIGMOD
2004
ACM
147views Database» more  SIGMOD 2004»
16 years 4 months ago
Robust Query Processing through Progressive Optimization
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
Volker Markl, Vijayshankar Raman, David E. Simmen,...
SIGMOD
2002
ACM
169views Database» more  SIGMOD 2002»
16 years 4 months ago
Covering indexes for branching path queries
In this paper, we ask if the traditional relational query acceleration techniques of summary tables and covering indexes have analogs for branching path expression queries over tr...
Raghav Kaushik, Philip Bohannon, Jeffrey F. Naught...
ICPADS
2005
IEEE
15 years 9 months ago
A Model for Distributing and Querying a Data Warehouse on a Computing Grid
Data warehouses store large volumes of data according to a multidimensional model with dimensions representing different axes of analysis. OLAP systems (OnLine Analytical Processi...
Pascal Wehrle, Maryvonne Miquel, Anne Tchounikine