Intelligent document filtering

• US 7,415,538 B2
• Filed: 03/19/2001
• Issued: 08/19/2008
• Est. Priority Date: 03/19/2001
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Maes, Stephane Herman, Raman, Thiruvilwamalai V.
• Primary Examiner(s): Zeender; F.
• Assistant Examiner(s): Refai; Ramsey
• Application Number:
  US09/811,966
• Publication Number:
  US 20020133627A1
• Time in Patent Office: 2,710 Days
• Field of Search: 709/217, 709/219, 709/310, 709/246, 709/247, 704/270, 704/260
• US Class Current: 709/246
• CPC Class Codes: G06F 16/9577 Optimising the visualization of content, e.g. distillation of HTML documents
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 67/565 Conversion or adaptation of application format or content adding application control or application functional data H04L67/561
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

In a network environment that includes a plurality of nodes and that uses a markup language to create documents, a method for filtering the documents is provided. The method includes the step of, upon receiving a request from a requesting node among the plurality of nodes, constructing an input Document Object Model (DOM) based on a document corresponding to the request. The input DOM is stored. Elements of the input DOM that have previously been stored are identified. The input DOM is filtered to obtain a filtered DOM, based on at least one pre-specified rule being applied to the input DOM.

Claims

1. A system for filtering markup language documents in a client/server environment having at least one client device and at least one server, said system comprising:

an intermediary operatively coupled between the at least one client device and the at least one server, adapted to receive a request sent from the at least one client device or from another intermediary and to receive a document corresponding to the request;

a filter operatively coupled to said intermediary, adapted to build an input document object model (DOM) based on the document, and filter the input DOM to output a filtered DOM based on at least one pre-specified rule being applied to the input DOM; and

a differential DOM coder operatively coupled to at least one of the at least one client device and the intermediary adapted to receive the filtered DOM and to identify and output at least changed data with respect to the input DOM and the filtered DOM,

wherein said filter is adapted to filter the input DOM one of prior to, during, and after transcoding at least one page corresponding to the input DOM and wherein the at least one page comprises at least one XML page and said filter is further adapted to filter the input DOM prior to transcoding the at least one XML page to at least one target presentation page in a multi-channel application or prior to transcoding the at least one XML page to at least one synchronized page in a multi-modal mode.

2. A system for filtering markup language documents in a client/server environment having at least one client device and at least one server, said system comprising:

an intermediary operatively coupled between the at least one client device and the at least one server, adapted to receive a request from the at least one client device or another intermediary, receive a document corresponding to the request, and to output a filtered document object model (DOM) to the at least one client device or the other intermediary;

a storage device operatively coupled to said intermediary, adapted to store an input DOM, and identify elements of the input DOM that have previously been stored; and

a filter operatively coupled to said storage device and said intermediary or the other intermediary, adapted to build the input DOM based on the document, and filter the input DOM to obtain the filtered DOM based on at least one pre-specified rule being applied to at least one of the input DOM and the identified elements;

wherein said filter is adapted to filter the input DOM one of prior to, during, and after transcoding at least one page corresponding to the input DOM and wherein the at least one page comprises at least one XML page and said filter is further adapted to filter the input DOM prior to transcoding the at least one XML page to at least one target presentation page in a multi-channel application or prior to transcoding the at least one XML page to at least one synchronized page in a multi-modal mode.

3. The system according to claim 2, wherein at least one of said storage device and said filter is disposed within said intermediary, the other intermediary, or a combination thereof.

4. The system according to claim 2, wherein said storage device is further adapted to track a history of user interaction.

5. The system according to claim 4, wherein the history of user interaction comprises World Wide Web (WWW) pages visited during a given interactive session.

6. The system according to claim 2, wherein said storage device is a cache.

7. The system according to claim 2, wherein said filter is adapted to filter the input DOM so as to remove previously received content therefrom.

8. The system according to claim 2, wherein said filter is adapted to filter the input DOM so as to remove non relevant content therefrom with respect to at least one of the request and at least one previous request.

9. The system according to claim 2, wherein said client device further comprises a speech synthesis system adapted to audibly reproduce an audio signal corresponding to the filtered DOM.

10. The system according to claim 2, wherein said filter is further adapted to filter the input DOM in a multi-channel mode.

11. The system according to claim 2, wherein said filter is further adapted to filter the input DOM in a multi-modal mode.

12. The system according to claim 2, wherein said filter is further adapted to filter the input DOM in a channel/modality independent mode.

13. The system according to claim 2, wherein the filtered DOM includes at least one of speech, Wireless Markup Language (WML), Voice eXtensible Markup Language (VoiceXML), and Conversational Markup Language (CML).