Sciweavers

13822 search results - page 2702 / 2765
» Models in Knowledge Management
Sort
View
SIGMOD
2009
ACM
213views Database» more  SIGMOD 2009»
14 years 9 months ago
Dictionary-based order-preserving string compression for main memory column stores
Column-oriented database systems [19, 23] perform better than traditional row-oriented database systems on analytical workloads such as those found in decision support and busines...
Carsten Binnig, Stefan Hildenbrand, Franz Fär...
SIGMOD
2008
ACM
203views Database» more  SIGMOD 2008»
14 years 8 months ago
Querying continuous functions in a database system
Many scientific, financial, data mining and sensor network applications need to work with continuous, rather than discrete data e.g., temperature as a function of location, or sto...
Arvind Thiagarajan, Samuel Madden
SIGMOD
2008
ACM
138views Database» more  SIGMOD 2008»
14 years 8 months ago
Sampling time-based sliding windows in bounded space
Random sampling is an appealing approach to build synopses of large data streams because random samples can be used for a broad spectrum of analytical tasks. Users are often inter...
Rainer Gemulla, Wolfgang Lehner
SIGMOD
2007
ACM
186views Database» more  SIGMOD 2007»
14 years 8 months ago
Fg-index: towards verification-free query processing on graph databases
Graphs are prevalently used to model the relationships between objects in various domains. With the increasing usage of graph databases, it has become more and more demanding to e...
James Cheng, Yiping Ke, Wilfred Ng, An Lu
SIGMOD
2007
ACM
145views Database» more  SIGMOD 2007»
14 years 8 months ago
Why off-the-shelf RDBMSs are better at XPath than you might expect
To compensate for the inherent impedance mismatch between the relational data model (tables of tuples) and XML (ordered, unranked trees), tree join algorithms have become the prev...
Torsten Grust, Jan Rittinger, Jens Teubner
« Prev « First page 2702 / 2765 Last » Next »