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...

Ngày tải lên: 19/02/2014, 11:20

Ngày tải lên: 21/02/2014, 16:20

... 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...

Ngày tải lên: 14/12/2013, 15:15

... 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...

Ngày tải lên: 14/12/2013, 15:16

... 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 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Computing and Handling Cardinal Direction Informatio...

Ngày tải lên: 14/12/2013, 15:16

... 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...

Ngày tải lên: 24/12/2013, 02:18

... 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...

Ngày tải lên: 24/12/2013, 02:18

... 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...

Ngày tải lên: 24/12/2013, 02:18

... 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...

Ngày tải lên: 24/12/2013, 02:18

... 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...

Ngày tải lên: 24/12/2013, 02:18