1
Rakesh Agrawal, Soumen Chakrabarti, Byron Edward Dom, Prabhakar Raghavan: Multilevel taxonomy based on features derived from training documents classification using fisher values as discrimination values. International Business Machines Corporation, Gates & Cooper, May 15, 2001: US06233575 (370 worldwide citation)

A system, process, and article of manufacture for organizing a large text database into a hierarchy of topics and for maintaining this organization as documents are added and deleted and as the topic hierarchy changes. Given sample documents belonging to various nodes in the topic hierarchy, the tok ...


2
Soumen Chakrabarti, Byron Edward Dom, David Andrew Gibson, Prabhakar Raghavan, Sridhar Rajagopalan, Shanmugasundaram Ravikumar, Andrew Tomkins: Method for interactively creating an information database including preferred information elements, such as preferred-authority, world wide web pages. International Business Machines Corporation, John L Rogitz, March 12, 2002: US06356899 (268 worldwide citation)

A method for identifying, filtering, ranking and cataloging information elements; as for example, World Wide Web pages, of the Internet in whole, part, or in combination. The method is preferably implemented in computer software and features steps for enabling a user to interactively create an infor ...


3
Don Coppersmith, Prabhakar Raghavan, Thomas G Zimmerman: System and method for near-field human-body coupling for encrypted communication with identification cards. International Business Machines Corporation, Khanh Q Tran, August 18, 1998: US05796827 (244 worldwide citation)

An apparatus and method are disclosed for encoding and transferring data from a transmitter to a receiver, using the human body as a transmission medium. The transmitter includes an electric field generator, a data encoder which operates by modulating the electric field, and electrodes to couple the ...


4
Ashok Chandra, Neil LaTarche, Jianchang Mao, Prabhakar Raghavan: Application caching system and method. Verity, Gray Cary Ware & Freidenrich, September 24, 2002: US06457047 (176 worldwide citation)

An application caching system and method are provided wherein one or more applications may be cached throughout a distributed computer network. The system may include a central cache directory server, one or more distributed master application servers and one or more distributed application cache se ...


5
Soumen Chakrabarti, Byron Edward Dom, David Andrew Gibson, Prabhakar Raghavan, Sridhar Rajagopalan, Shanmugasundaram Ravikumar, Andrew Tomkins: Method for cataloging, filtering, and relevance ranking frame-based hierarchical information structures. International Business Machines Corporation, John L Rogitz, December 25, 2001: US06334131 (166 worldwide citation)

A method for cataloging, filtering and ranking information, as for example, World Wide Web pages of the Internet. The method is preferably implemented in computer software and features steps for enabling a user to interactively create an information database including preferred information elements ...


6
Jianchang Mao, Mani Abrol, Rajat Mukherjee, Michel Tourn, Prabhakar Raghavan: Apparatus and method for adaptively ranking search results. Verity, Cooley Godward, May 18, 2004: US06738764 (145 worldwide citation)

A method of ranking search results includes producing a relevance score for a document in view of a query. A similarity score is calculated for the query utilizing a feature vector that characterizes attributes and query words associated with the document. A rank value is assigned to the document ba ...


7
Rakesh Agrawal, Johannes Ernst Gehrke, Dimitrios Gunopulos, Prabhakar Raghavan: Automatic subspace clustering of high dimensional data for data mining applications. International Business Machines Corporation, Khanh Q Banner & Witcoff Tran Esq, December 14, 1999: US06003029 (136 worldwide citation)

A method for finding clusters of units in high-dimensional data having the steps of determining dense units in selected subspaces within a data space of the high-dimensional data, determining each cluster of dense units that are connected to other dense units in the selected subspaces within the dat ...


8
Jon Michael Kleinberg, Prabhakar Raghavan: System and method for data mining from relational data by sieving through iterated relational reinforcement. International Business Machines Corporation, James C Pintner, Khanh Q Tran, March 16, 1999: US05884305 (93 worldwide citation)

A system and method are provided for performing the process known as "data mining" on a database of raw data records having common data elements, to obtain categorical cluster rules as to what elements of the data tend to occur in common in multiple records. Initial values are assigned to the elemen ...


9
Jianchang Mao, Rajat Mukherjee, Prabhakar Raghavan, Panayiotis Tsaparas: Method and apparatus for merging result lists from multiple search engines. Verity, Cooley Godward, April 27, 2004: US06728704 (88 worldwide citation)

This invention includes the step of transmitting a query to a set of search engines. Any result lists returned from these search engines is received, and a subset of entries in each result list is selected. Each entry in this subset is assigned a scoring value according to a scoring function, and ea ...


10
Soumen Chakrabarti, Byron Edward Dom, David Andrew Gibson, Jon Michael Kleinberg, Prabhakar Raghavan, Sridhar Rajagopalan: Method and system for filtering of information entities. International Business Machines Corporation, John L Rogitz, February 7, 2006: US06996572 (49 worldwide citation)

A system and method are provided for eliciting interesting structure from a collection of entities or resources with explicit and/or implicit, static and/or dynamic relations, called “affinities,” between them. Interesting structure includes (1) notions of quality, authority, or definitiveness of in ...