Advanced Database Systems and Queries

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We present a transaction commit protocol, "Transaction Commit On Timeout (TCOT)," based on a "timeout" approach for Mobile Database Systems (MDS), which can be universally used to reach a final transaction termination decision (e.g., commit, abort, etc.) in any message-oriented system. Particularly suited for a wirele…

• AYŞE YASEMİN SEYDİM

The problem of statistics and aggregate maintenance over data streams has gained popularity in recent years especially in telecommunications network monitoring, trend-related analysis, Web-click streams, stock tickers, and other time-variant data. The amount of data generated in such applications can become too large…

Mixed-drove spatio-temporal co-occurrence patterns (MDCOPs) represent subsets of two or more different object-types whose instances are often located in spatial and temporal proximity. Discovering MDCOPs is an important problem with many applications such as identifying tactics in battlefields, games, and predator-pre…

• METE ÇELİK

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• REDA ALHAJJ

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• REDA ALHAJJ

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The Organization for the Advancement of Structured Information Standards (OASIS) has developed the business transaction protocol (BTP) to meet the requirements of Web-based long-running collaborative business applications. BTP is designed to support interactions that cross application and administrative boundaries, th…

In this paper, we present an approach for incorporating fuzzy and imprecise data in XML documents. We describe the ways to introduce fuzziness using both possibility theory and similarity relations. We then show how to map the data from a fuzzy relational database into a fuzzy XML document, with the corresponding XML…

Next generation information system applications require powerful and intelligent information management that necessitates an efficient interaction between database and knowledge base technologies. It is also important for these applications to incorporate uncertainty in data objects, in integrity constraints, and/or i…

Next generation information system applications require powerful and intelligent information management that necessitates an efficient interaction between database and knowledge base technologies. It is also important for these applications to incorporate uncertainty in data objects, in integrity constraints, and/or i…

• MURAT KOYUNCU

The popularity of NoSQL databases has increased due to the need of (1) processing vast amount of data faster than the relational database management systems by taking the advantage of highly scalable architecture, (2) flexible (schema-free) data structure, and, (3) low latency and high performance. Despite that memory…

• RESUL KARA