Web Log Data Sparsity Analysis and Performance Evaluation for OLAP
スポンサーリンク
概要
- 論文の詳細を見る
Many Internet businesses usually collect hundreds of megabytes of click-stream data everyday and want to analyze these data efficiently. But it is not easy to perform systematic analysis on such a huge amount of data. OLAP can be used for this purpose. It has to precalculate multidimensional summary results in order to get fast response. But as the number of dimensions and sparse cells increase, data explosion occurs seriously and the performance of OLAP decreases. In this paper, we present why this sparsity of web log data occurs and then what kinds of sparsity patterns are in the two and the three dimensions in OLAP. Based on sparsity patterns found we evaluate the performance of three OLAP systems (MS SQL 2000 Analysis Service, Oracle Express and MOLAP with the chunking method).
- お茶の水女子大学の論文
著者
-
Yong Hwan-seung
Department Of Computer Science And Engineering Ewha Womans University
-
Kim Ji-hyun
Department Of Anatomy Chonbuk National University Medical School:research Center For Allergic Immune
-
Kim Ji-hyun
Department Of Computer Science And Engineering Ewha Womans University
関連論文
- Inhibitory Effects of Agaricus blazei on Mast Cell-Mediated Anaphylaxis-Like Reactions(Pharmacology)
- Inhibition of Anaphylaxis-Like Reaction and Mast Cell Activation by Water Extract from the Fruiting Body of Phellinus linteus(Pharmacology)
- Effects of Yukmijihwang-tang Derivatives (YMJd) on Ibotenic Acid-Induced Amnesia in the Rat(Pharmacognosy)
- Shikonin, Acetylshikonin, and Isobutyroylshikonin Inhibit VEGF-induced Angiogenesis and Suppress Tumor Growth in Lewis Lung Carcinoma-bearing Mice
- Costunolide Induces Apoptosis in Human Endometriotic Cells through Inhibition of the Prosurvival Akt and Nuclear Factor Kappa B Signaling Pathway
- Signaling responses of osteoblast cells to hydroxyapatite : the activation of ERK and SOX9
- Web Log Data Sparsity Analysis and Performance Evaluation for OLAP