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128 articles for “Query”
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Research ArticleOpen accessEvery word in the titleQuery Tuning in Oracle DatabaseNofri Alhadi, Kamsuriah AhmadOracle database is well suited to use for managing and exchanging of corporate data, especially for companies that have large-scale databases. Even though Oracle can work best, however, there are conditions where Oracle does not perform well and consume more time to perform the query transaction. This is when the database tuning process is needed. This process will solve the … …Journal of Computer Science, Vol. 8, Issue 11 · 5 Nov 2012 · 7,319 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNormalized Web Distance Based Web Query ClassificationS. Lovelyn Rose, K. R. ChandranProblem statement: The problem is to classify a given web query to a set of 67 target categories. The target categories are ranked based on the degree of similarity to a given query. Approach: The feature set is the set of intermediate categories retrieved from a directory search engine for a given query. Using direct mapping and Normalized Web Distance … …Journal of Computer Science, Vol. 8, Issue 5 · 9 Mar 2012 · 6,589 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCache Based Distributed Query Processing in Mobile Ad hoc NetworksT. P. Andamuthu, P. BalasubramanieProblem statement: In the last few years, the evolution of the mobile networks leads to the query processing in mobile computing an impressive research area. The mobile computing technology needs to offer more and different innovative services as the number of users of the mobiles were increasing. In this regard, this study proposed a new algorithm which increased the performance … …Journal of Computer Science, Vol. 7, Issue 5 · 7 May 2011 · 6,758 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleImproving Computation Power by Reducing Query Response Time in Peer-to-Peer EnvironmentVelvizhi Nandagopal, D. ManjulaProblem statement: The Peer-to-Peer (P2P) was an emerging model and was being widely adopted in today’s internet computing.P2P traffic contributes the largest portion of the internet traffic which was unnecessary and led to delay. In existing Scalable Bipartite Overlay (SBO) network, Out of “N” peers, one group of peers were probing the messages (or) queries whereas the other group of … …Journal of Computer Science, Vol. 7, Issue 3 · 9 Mar 2011 · 6,598 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAn Efficient Middleware for Storing and Querying XML Data in Relational Database Management SystemMohammed Adam Ibrahim Fakheraldien, Jasni Mohamad Zain, Norrozila SulaimanProblem statement: In this study, we propose a middleware that provides a transformation utility for storing and querying XML data in relational databases using model mapping method. Approach: To store XML documents in RDBMS, several mapping approaches can be used. We chose structure independent approach. In this middleware the model mapping method XParent and free of cost available technologies MYSQL, … …Journal of Computer Science, Vol. 7, Issue 2 · 26 Feb 2011 · 7,605 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCollaborative Caching Architecture for Continuous Query in Mobile DatabaseMohamed Ahmed Elfaki, Hamidah Ibrahim, Ali Mamat, Mohamed OthmanProblem statement: Cooperative caching, which allows sharing and coordination of cached data among clients, is a potential technique to improve the data access performance and availability in mobile ad hoc networks. However, variable data sizes, frequent data updates, limited client resources, insufficient wireless bandwidth and client’s mobility make cache management faces many challenges. Approach: In this study, we propose a … …American Journal of Economics and Business Administration, Vol. 3, Issue 1 · 7 Jan 2011 · 8,875 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePRESY: A Context Based Query Reformulation Tool for Information Retrieval on the WebAbdelkrim Bouramoul, Mohamed-Khireddine Kholladi, Bich-Lien DoanProblem statement: The huge number of information on the web as well as the growth of new inexperienced users creates new challenges for information retrieval. It has become increasingly difficult for these users to find relevant documents that satisfy their individual needs. Certainly the current search engines (such as Google, Bing and Yahoo) offer an efficient way to browse the … …Journal of Computer Science, Vol. 6, Issue 4 · 30 Apr 2010 · 7,666 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInteractive and Automatic Query Expansion: A Comparative Study with an Application on ArabicGhassan Kanaan, Riyad Al-Shalabi, Sameh Ghwanmeh, Basel Bani-IsmailMuch attention has been paid to the relative effectiveness of Interactive Query Expansion (IQE) versus Automatic Query Expansion (AQE). This research has been shown that automatic query expansion (collection dependent) strategy gives better performance than no query expansion. The percentage of queries that are improved by AQE strategy is 57% with average precision equal to 43.2. Compared against AQE (collection … …American Journal of Applied Sciences, Vol. 5, Issue 11 · 30 Nov 2008 · 7,480 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTwigX-Guide: Twig Query Pattern Matching for XML TreesSu-Cheng Haw, Chien-Sing LeeThe growing importance of XML and the lack of efficient solutions for managing and querying XML data have led to the development of hybrid systems. We present a hybrid system, TwigX-Guide; an extension of the well-known DataGuide index and region encoding labeling to support twig query processing. With TwigX-Guide, a complex query can be decomposed into a set of path … …American Journal of Applied Sciences, Vol. 5, Issue 9 · 30 Sep 2008 · 7,078 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTwigINLAB: A Decomposition-Matching-Merging Approach To Improving XML Query ProcessingSu-Cheng Haw, Chien-Sing LeeThe emergence of the Web has increased significant interests in querying XML data. Current methods for XML query processing still suffers from producing large intermediate results and are not efficient in supporting query with mixed types of relationships. We propose the TwigINLAB algorithm to process and optimize the query evaluation. Our TwigINLAB adopts the decomposition-matching-merging approach and focuses on optimizing … …American Journal of Applied Sciences, Vol. 5, Issue 9 · 30 Sep 2008 · 6,988 accessesView PDFCite