698results about How to "Efficient retrieval" patented technology

A routing mechanism, service or system operable in a distributed networking environment. One preferred environment is a content delivery network (CDN) wherein the present invention provides improved connectivity back to an origin server, especially for HTTP traffic. In a CDN, edge servers are typically organized into regions, with each region comprising a set of content servers that preferably operate in a peer-to-peer manner and share data across a common backbone such as a local area network (LAN). The inventive routing technique enables an edge server operating within a given CDN region to retrieve content (cacheable, non-cacheable and the like) from an origin server more efficiently by selectively routing through the CDN's own nodes, thereby avoiding network congestion and hot spots. The invention enables an edge server to fetch content from an origin server through an intermediate CDN server or, more generally, enables an edge server within a given first region to fetch content from the origin server through an intermediate CDN region.

A routing mechanism, service or system operable in a distributed networking environment. One preferred environment is a content delivery network (CDN) wherein the present invention provides improved connectivity back to an origin server, especially for HTTP traffic. In a CDN, edge servers are typically organized into regions, with each region comprising a set of content servers that preferably operate in a peer-to-peer manner and share data across a common backbone such as a local area network (LAN). The inventive routing technique enables an edge server operating within a given CDN region to retrieve content (cacheable, non-cacheable and the like) from an origin server more efficiently by selectively routing through the CDN's own nodes, thereby avoiding network congestion and hot spots. The invention enables an edge server to fetch content from an origin server through an intermediate CDN server or, more generally, enables an edge server within a given first region to fetch content from the origin server through an intermediate CDN region. As used herein, this routing through an intermediate server, node or region is sometimes referred to as “tunneling.”

A user may utilize a communication device, e.g., a wireless phone, mobile device or personal digital assistant (PDA), to contact an information / call center where an operator provides personalized information and communications services to the user in accordance with the invention. Such services include, e.g., providing listing information, contacts information, appointments information, etc. To provide effective connectivity, for example, when a user locates a phone number in his / her private directory using a web browser, the user may utilize a direct connect feature of the invention to initiate a phone call to the desired number over the Internet. In addition, the invention allows for delivery of the appointments information to the user not only via voice connection, but also SMS, email, facsimile, PDA, etc. It also allows for rendering a calendaring service in combination with such services as a TeleConcierge® service which helps the user to plan a future event, e.g., making a restaurant reservation. An appointment record concerning the future event is automatically incorporated into the user's calendar once it is successfully planned. To personalize the services, at least one profile associated with the user is used which specifies the subscribed services and the preferred ways of receiving them. For example, the profile may specify use of a special skilled operator, methods of delivery of information to the user, etc.

A clot capture system for disengaging a clot 2001 from a vessel wall 2002 and removing the clot 2001 from the vessel 202, comprises a clot capture device 2140 for placement on a distal side of a clot 2001. The clot capture device 2140 has a retracted delivery configuration and an expanded deployed configuration. The clot removal device has a proximal support frame 2012, and a distal fibre net 2130. The support frame 2012 has a retracted delivery configuration and an expanded deployed configuration. The proximal support frame 2012 in the expanded configuration defines a proximal inlet mouth for engaging a clot 2001 and a net 2130 for confining the clot 2001. An elongate member facilitates capture and / or withdrawal of a clot 2001 from a vessel 2002. The system also comprises a clot debonding device 2091 for placement on a proximal side of a clot 2001. The clot debonding device 2091 has a retracted delivery configuration and an expanded deployed configuration and comprises a clot engagement element 2112 which defines a distal abutment in the deployed configuration for urging a clot 2001 into the clot cap 2140.

The invention is a method, system and computer program for automatically discovering concepts from a corpus of documents and automatically generating a labeled concept hierarchy. The method involves extraction of signatures from the corpus of documents. The similarity between signatures is computed using a statistical measure. The frequency distribution of signatures is refined to alleviate any inaccuracy in the similarity measure. The signatures are also disambiguated to address the polysemy problem. The similarity measure is recomputed based on the refined frequency distribution and disambiguated signatures. The recomputed similarity measure reflects actual similarity between signatures. The recomputed similarity measure is then used for clustering related signatures. The signatures are clustered to generate concepts and concepts are arranged in a concept hierarchy. The concept hierarchy automatically generates query for a particular concept and retrieves relevant documents associated with the concept.

An approach is provided for supporting retrieval of web content over a meshed communication network. A first server receives a request from a browser application for the content resident in the web server. The first server includes a downstream proxy configured to modify the request to include information specifying support of a parse and pre-fetch service within an optional header field of the request as to permit handling of the modified request by the web server in absence of an upstream proxy that is communicating with the web server. A second server is configured as the upstream proxy to intercept the modified request and pre-fetch the content from the web server. The second server forwards the pre-fetched content over the communication network to the first server. This approach as particular applicability in relatively high latency networks, such as a satellite communications system.

A user may utilize a communication device, e.g., a wireless phone, mobile device or personal digital assistant (PDA), to contact an information / call center where an operator provides personalized information and communications services to the user in accordance with the invention. Such services include, e.g., providing listing information, contacts information, appointments information, etc. To provide effective connectivity, for example, when a user locates a phone number in his / her private directory using a web browser, the user may utilize a direct connect feature of the invention to initiate a phone call to the desired number over the Internet. In addition, the invention allows for delivery of the appointments information to the user not only via voice connection, but also SMS, email, facsimile, PDA, etc. It also allows for rendering a calendaring service in combination with such services as a TeleConcierge® service which helps the user to plan a future event, e.g., making a restaurant reservation. An appointment record concerning the future event is automatically incorporated into the user's calendar once it is successfully planned. To personalize the services, at least one profile associated with the user is used which specifies the subscribed services and the preferred ways of receiving them. For example, the profile may specify use of a special skilled operator, methods of delivery of information to the user, etc.

A user may utilize a communication device, e.g., a wireless phone, mobile device or personal digital assistant (PDA), to contact an information / call center where an operator provides personalized information and communications services to the user in accordance with the invention. Such services include, e.g., providing listing information, contacts information, appointments information, etc. To provide effective connectivity, for example, when a user locates a phone number in his / her private directory using a web browser, the user may utilize a direct connect feature of the invention to initiate a phone call to the desired number over the Internet. In addition, the invention allows for delivery of the appointments information to the user not only via voice connection, but also SMS, email, facsimile, PDA, etc. It also allows for rendering a calendaring service in combination with such services as a TeleConcierge® service which helps the user to plan a future event, e.g., making a restaurant reservation. An appointment record concerning the future event is automatically incorporated into the user's calendar once it is successfully planned. To personalize the services, at least one profile associated with the user is used which specifies the subscribed services and the preferred ways of receiving them. For example, the profile may specify use of a special skilled operator, methods of delivery of information to the user, etc.

A method and system are disclosed for retrieving information through the use of a multi-stage interaction with a client to identify particular knowledge content associated with a knowledge map.

A system and method that allows a user to update the contents of a portable electronic mail account to correspond with the contents of a user's regular electronic mail account, where only discrete portions of the regular electronic mail account are progressively cached in the portable electronic mail account according to a hierarchy with each update operation. By updating only a portion of the regular electronic mail account with each update operation, the service provider can minimize the amount of memory storage and communication expense necessary to maintain the portable electronic mail account, while still permitting the user to access the information important to the user.

An automated blocking technique is used as a first step to find approximate matches in a database. The technique builds a blocking set to be as liberal as possible in retrieving records that match on individual fields or sets of fields while avoiding selection criteria that are predicted to return more than the maximum number of records defining a particular special requirement. The ability to do blocking without extensive manual setup at low cost is highly advantageous especially when using a machine learning based second-stage matching algorithm.