1
Philip L Bohannon, James Allen Parker, Rajeev Rastogi, Abraham Silberschatz: System and method for restoring a distributed checkpointed database. Lucent Technologies, December 1, 1998: US05845292 (121 worldwide citation)

For use with a central database associated with a server of a network, the central database having distributed counterparts stored in volatile memories of clients of the network to allow operations to be performed locally thereon, the central database further having multiple checkpoints and a stable ...


2
Sudipto Guha, Rajeev Rastogi, Kyuseok Shim: Method, apparatus and programmed medium for clustering databases with categorical attributes. Lucent Technologies, Dickstein Shapiro Morin & Oshinsky, April 11, 2000: US06049797 (92 worldwide citation)

The present invention relates to a computer method, apparatus and programmed medium for clustering databases containing data with categorical attributes. The present invention assigns a pair of points to be neighbors if their similarity exceeds a certain threshold. The similarity value for pairs of ...


3
Alexandros Biliris, Banu Ozden, Rajeev Rastogi, Abraham Silberschatz: Multimedia on-demand server. Lucent Technologies, February 17, 1998: US05720037 (77 worldwide citation)

A multimedia on-demand server including a randomly accessible library of multimedia programs (such as movies stored on magnetic or optical disks), a limited amount of RAM to buffer and store selected portions of programs retrieved from the library, and an interface that switchably routes program mat ...


4
Philip L Bohannon, Dennis W Leinbaugh, Rajeev Rastogi, Srinivasan Seshadri, Abraham Silberschatz, Sundararajarao Sudarshan: System and method for aging versions of data in a main memory database. Lucent Technologies, September 26, 2000: US06125371 (74 worldwide citation)

For use with a database of data records stored in a memory, a system and method for increasing a memory capacity and a memory database employing the system or the method. The system includes: (1) a time stamping controller that assigns a time stamp to transactions to be performed on the database, th ...


5
Yuri Breitbart, Minos N Garofalakis, Clifford Eric Martin, Rajeev Rastogi, Srinivasan Seshadri, Abraham Silberschatz: Determination of physical topology of a communication network. Lucent Technologies, February 24, 2004: US06697338 (68 worldwide citation)

Physical connectivity is determined between elements such as switches and routers in a multiple subnet communication network. Each element has one or more interfaces each of which is physically linked with an interface of another network element. Address sets are generated for each interface of the ...


6
Philip Lewis Bohannon, Rajeev Rastogi, Abraham Silberschatz, Sundararajarao Sudarshan: System and method for restoring a multiple checkpointed database in view of loss of volatile memory. Lucent Technologies, January 26, 1999: US05864849 (64 worldwide citation)

For use with an active database stored in volatile memory for direct revision thereof, the active database having multiple checkpoints and a stable log, having a tail stored in the volatile memory, for tracking revisions to the active database to allow corresponding revisions to be made to the multi ...


7
Banu Ozden, Rajeev Rastogi, Abraham Silberschatz: System for video server using coarse-grained disk striping method in which incoming requests are scheduled and rescheduled based on availability of bandwidth. Lucent Technologies, Kenneth M Brown, October 20, 1998: US05826110 (61 worldwide citation)

A method for retrieving video data which has been striped across a plurality of disks using a coarse-grained striping technique. Specifically, and in accordance with an illustrative embodiment of the present invention, the method comprises scheduling the retrieval of a video in response to an incomi ...


8
Apostol Ivanov Natsev, Rajeev Rastogi, Kyuseok Shim: Methods of imaging based on wavelet retrieval of scenes. Lucent Technologies, Cohen Pontani Lieberman & Pavane, June 15, 2004: US06751363 (55 worldwide citation)

Methods of imaging objects based on wavelet retrieval of scenes utilize wavelet transformation of plural defined regions of a query image. By increasing the granularity of the query image to greater than one region, accurate feature vectors are obtained that allow for robust extraction of correspond ...


9
Sudipto Guha, Rajeev Rastogi, Kyuseok Shim: Programmed medium for clustering large databases. Lucent Technologies, Dickstein Shapiro Morin & Oshinsky, July 18, 2000: US06092072 (54 worldwide citation)

The present invention relates to a computer method, apparatus and programmed medium for clustering large databases. The present invention represents each cluster to be merged by a constant number of well scattered points that capture the shape and extent of the cluster. The chosen scattered points a ...


10
Philip L Bohannon, Rajeev Rastogi, Srinivasan Seshadri, Abraham Silberschatz, Sundararajarao Sudarshan: Method and apparatus for detecting and recovering from data corruption of a database via read prechecking and deferred maintenance of codewords. Lucent Technologies, Morgan & Finnegan, April 16, 2002: US06374264 (53 worldwide citation)

A method of detecting and recovering from data corruption of a database is characterized by the step of protecting data of the database with codewords, one codeword for each region of the database; and verifying that a codeword matches associated data before the data is read from the database to pre ...



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