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公开(公告)号：GB2365569B
公开(公告)日：2004-04-07
申请号：GB0100851
申请日：2001-01-12
Applicant: IBM
Inventor： AGGARWAL CHARU C , YU PHILIP SHI-LUNG
Abstract: In one aspect of the invention, a method of performing a conceptual similarity search comprises the steps of: generating one or more conceptual word-chains from one or more documents to be used in the conceptual similarity search; building a conceptual index of documents with the one or more word-chains; and evaluating a similarity query using the conceptual index. The evaluating step preferably returns one or more of the closest documents resulting from the search; one or more matching word-chains in the one or more documents; and one or more matching topical words of the one or more documents.
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公开(公告)号：DE69720088T2
公开(公告)日：2004-02-26
申请号：DE69720088
申请日：1997-01-22
Applicant: IBM
Inventor： AGGARWAL CHARU CHANDRA , WOLF JOEL LEONARD , YU PHILIP SHI-LUNG
Abstract: A VOD scheduler maintains a queue of pending performance for each video. Using the notion of queue selection factor, a batching policy is devised that schedules the video with the highest selection factor. Selection factors are obtained by applying discriminatory weighting factors to the adjusted queue lengths associated with each video where the weight decreases as the popularity of the respective video increases and the queue length is adjusted to take defection into account.
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公开(公告)号：DE69522768T2
公开(公告)日：2002-07-04
申请号：DE69522768
申请日：1995-07-06
Applicant: IBM
Inventor： YU PHILIP SHI-LUNG
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公开(公告)号：GB2365569A
公开(公告)日：2002-02-20
申请号：GB0100851
申请日：2001-01-12
Applicant: IBM
Inventor： AGGARWAL CHARU C , YU PHILIP SHI-LUNG
Abstract: A method of performing a conceptual similarity search comprises the steps of: generating one or more conceptual word-chains from one or more documents to be used in the conceptual similarity search; building a conceptual index of documents with the one or more word-chains; and evaluating a similarity query using the conceptual index. The evaluating step preferably returns one or more of the closest documents resulting from the search; one or more matching word-chains in the one or more documents; and one or more matching topical words of the one or more documents.
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公开(公告)号：CZ20011281A3
公开(公告)日：2001-10-17
申请号：CZ20011281
申请日：1999-10-08
Applicant: IBM
Inventor： JORDAN KEVIN MICHAEL , WU KUN-LUNG , YU PHILIP SHI-LUNG
Abstract: In a system including a collection of cooperating cache servers, such as proxy cache servers, a request can be forwarded to a cooperating cache server if the requested object cannot be found locally. An overload condition is detected if for example, due to reference skew, some objects are in high demand by all the clients and the cache servers that contain those hot objects become overloaded due to forwarded requests. In response, the load is balanced by shifting some or all of the forwarded requests from an overloaded cache server to a less loaded one. Both centralized and distributed load balancing environments are described.
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Patent Agency Ranking
公开(公告)号：CA2329558A1
公开(公告)日：2001-07-28
申请号：CA2329558
申请日：2000-12-22
Applicant: IBM
Inventor： AGGARWAL CHARU C , YU PHILIP SHI-LUNG
Abstract: In one aspect of the invention, a method of performing a conceptual similari ty search comprises the steps of generating one or more conceptual word-chains from on e or more documents to be used in the conceptual similarity search; building a conceptual index of documents with the one or more word-chains; and evaluating a similarity query using the conceptual index. The evaluating step preferably returns one or more of the closest documents resulting from the search; one or more matching word-chains in the one or more documents; and one or mo re matching topical words of the one or more documents.
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公开(公告)号：CA2292678A1
公开(公告)日：2001-06-17
申请号：CA2292678
申请日：1999-12-17
Applicant: IBM
Inventor： YU PHILIP SHI-LUNG , MALKIN PETER KENNETH
Abstract: The present invention enables, in a network, state notifications to trigger data transfer from a source server or from an intermediate proxy server to an often disconnected client computer, based on the client's entering a particular state. The intermediate proxy server queues push requests from source servers to target clients. The state notifications include state information based on different criteria. In the state notifications may specify push information which may be used to determine the least expensive device to which to transfer given data . The state notifications also reduce the network polling load by initiating each poll.
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公开(公告)号：HU0100161A2
公开(公告)日：2001-05-28
申请号：HU0100161
申请日：1998-09-29
Applicant: IBM
Inventor： AGGARWAL CHANDRA , YU PHILIP SHI-LUNG
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公开(公告)号：ES2137390T3
公开(公告)日：1999-12-16
申请号：ES95104098
申请日：1995-03-20
Applicant: IBM
Inventor： CHEN MING-SYAN , KANDLUR DILIP DINKAR , YU PHILIP SHI-LUNG
IPC: H04N5/76 , H04N3/30 , H04N5/93 , H04N7/173 , H04N7/26 , H04N21/2312 , H04N21/2387 , H04N21/472
Abstract: A system and method for performing variable speed scanning or browsing, wherein a user controls the playout speed of a movie, which does not require additional disk or network bandwidth resources. In a preferred embodiment, the method provides for scanning operations for an MPEG video stream. The method satisfies the constraints of the MPEG decoder (in the users set-top box) and require a minimum of additional system resources. The embodiments of the present invention include (a) a storage method, (b1) a segment sampling method, (b2) a segment placement method, and (c) a playout method, where (b1) and (b2) are two alternatives for segment selection. Thus, two sets of solutions are provided to support vriable speed scanning in a disk-array-based video server: One using (a), (b1) and (c), and the other using (a), (b2) and (c).
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公开(公告)号：DE69509433T2
公开(公告)日：1999-12-16
申请号：DE69509433
申请日：1995-02-15
Applicant: IBM
Inventor： SHACHNAI HADAS , WOLF JOEL LEONARD , YU PHILIP SHI-LUNG
Abstract: A video on demand computer system includes a plurality of storage media each storing a plurality of videos. The storage media are disks attached to a computer system. The computer system plays the videos on demand by reading out the videos from the disks as data steams to play selected ones of the videos for users responsive to received user performance requests. The computer system is programmed to monitor the numbers of videos being performed for each of the disks. Based on the monitoring function performed by the computer system, the computer system performs a load balancing function by transferring the performance of a video in progress from one of the disks to another disk having a copy of the video in progress. The computer system periodically performs a reassignment function to transfer videos between the disks to optimize load balancing based on the user performance requests for each of the videos. There are two phases to the load balancing performed by the computer system; a static phase and a dynamic phase. In the static phase, videos are assigned to memory and disks, and in the dynamic phase there is provided a scheme for playing videos with minimal and balanced loads on the disks. The static phase supports the dynamic phase which insures optimal real-time operation of the system. Dynamic phase load balancing is accomplished by a process of baton passing.
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