Shalab Goel

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The rapid growth of interconnected computer networks has generated a lot of interest in migrating the distributed systems to a wide area network (WAN) environment, such as the Internet. We have developed mechanisms for studying the performance of the distributed transaction processing on the Internet, without actually having to move the database sites to(More)
Multiversion concurrency control schemes are often limited in their practicability due to their storage requirements for multiple versions of the data. However, a class of multiver-sion schemes utilize only the versions, maintained for the purpose of recovery, to improve the concurrency by allowing the concurrent execution of "non conflicting" read-write(More)
We describe the model and implementation of two approaches for method execution in distributed object query processing. The first approach is the traditional data migration approach in which remote data accesses (if required) are made to compose an in-memory object at the query site which is followed by method invocation on this object. The second approach(More)
Digital libraries are a repository of documents that are large volumes of integrated text, image, video and sound data. In such an environment, users may not have an eecient access mechanisms for the data, and in some cases may not even know what is available and how and where it is located. To facilitate the users in retrieving the documents from this vast(More)
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