Tài liệu Innovation In Information Technology doc
Tài liệu Innovation In Information Technology doc
... http://www.nap.edu
Innovation in Information Technology
http://books.nap.edu/catalog/10795.html
4 INNOVATION IN INFORMATION TECHNOLOGY
motivations, resulting in differences in style, focus, and ... http://www.nap.edu
Innovation in Information Technology
http://books.nap.edu/catalog/10795.html
Innovation
in INFORMATION
TECHNOLOGY
Computer Science and Telec...
Tài liệu Advances in Database Technology- P3 docx
... approaches in query processing for
moving object trajectories. In VLDB, 2000.
S. Prabhakar, Y. Xia, D. V. Kalashnikov, W. G. Aref, and S. E. Hambrusch. Query indexing
and velocity constrained indexing: ... of
much broader range of algorithms or data mining problems.
1
Introduction
Clustering is a vital process for condensing and summarizing information, since it can
provide a synopsis of...
Tài liệu Advances in Database Technology- P6 docx
... relational
databases into an XML format or to store the information in an XML object in
a relational database, increasing the cost of e-business development. Moreover,
specifying the mapping in the application ... the XML document. Since the resulting tuples come in the same order
as the final XML document no in- memory buffering is necessary and the result
can be pipelined to a ta...
Tài liệu Advances in Database Technology- P8 docx
... designing the annotation
specifications, considering the specifics of data integrity constraint checking, and
ascertaining the impact on particular tools remain challenging (and interesting) tasks.
focuses ... in the games and the information shown in Fig. 1
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Computing and Handling Cardinal Direction Informatio...
Tài liệu Advances in Database Technology- P9 docx
... pruning steps using can be done to
do more effective pruning, since the two sets are symmetric in this join problem.
4
Constructing NNH Using Good Pivots
Pivot points are vital to NNH for obtaining ... between index nodes from corresponding trees in a priority
queue and recursively (top-down) refining the search. In this case, using
histograms, one could perform, in addition to the ty...
Tài liệu Advances in Database Technology- P10 docx
... section.
5
Improvements Using Domain Information
So far we have discussed in what cases we do not need to normalize queries in
the containment test, and in what cases we can reduce the containment test to
checking ... implications in different domains, since testing
the implication in each domain is easier. Now we show that this partitioning
idea is feasible. We say a comparison X...
Tài liệu Advances in Database Technology- P11 docx
... of MLQ.
Data point insertion: When a new data point is inserted into the quadtree,
MLQ updates the summary information in each of the existing blocks that the
new data point maps into. It then ... using no more than
Let us define SSENC as the sum of squared errors of the data points in
block excluding those in its children. That is,
where is the set of data points in that do not map...
Tài liệu Advances in Database Technology- P12 docx
... and since each iteration is actually
a generalized bargaining step, using a nested bargaining within a bargaining will only
increase the number of exchanged messages.
4
Experimental Study
In order ... be
computed quickly, in a single pass over the data tuples in in the (arbitrary) order
of their arrival. At any point in time, our query-processing algorithms can combine the
maintained...
Tài liệu Advances in Database Technology- P13 docx
... Srikant. Mining Sequential Patterns. In Proc. of the 11th Int.
Conf. on Data Engineering, Taipei, Taiwan, March 1995.
W. Aref, M. Elfeky, and A. Elmagarmid. Incremental, Online, and Merge Mining
of ... instead of
bursty output of punctuations whenever possible. In the eager approach, since
the index is incrementally built right upon receiving each punctuation and the
index is indirectly m...
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