VIEWING HIERARCHICAL DOCUMENT SUMMARIES USING TAG CLOUDS

• US 20140129921A1
• Filed: 08/19/2013
• Published: 05/08/2014
• Est. Priority Date: 11/06/2012
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Bergman, Lawrence D., Flavin, Robert A., Konuru, Ravindranath
• Granted Patent: US 10,606,927 B2
• Time in Patent Office: Days
• US Class Current: 715/234
• CPC Class Codes: G06F 16/367 Ontology
• CPC Class Codes: G06F 40/117 Tagging; Marking up details of markup languages G06F40/143; Designating a block; Setting of attributes style sheets, e.g. eXtensible Stylesheet Language Transformation [XSLT], G06F40/154

Abstract

Access is obtained to a hierarchically structured document having a plurality of hierarchical levels. For each of the hierarchical levels, a word list with a word count for each word included therein is obtained. For each of the hierarchical levels, a tag cloud based on a corresponding one of the word counts is created. At least one of the tag clouds is displayed in association with a label for a corresponding one of the hierarchical levels.

Claims

1. A method comprising:

obtaining access to a hierarchically structured document having a plurality of hierarchical levels;

for each of said hierarchical levels, obtaining a word list with a word count for each word included therein;

for each of said hierarchical levels, creating a tag cloud based on a corresponding one of said word counts; and

displaying at least one of said tag clouds in association with a label for a corresponding one of said hierarchical levels.

2. The method of claim 1, wherein said step of creating said tag cloud comprises:

removing stop words from each of said word lists;

determining a total number of words in each of said word lists; and

determining a normalized word count for each word, other than said stop words, in each of said word lists, by dividing a corresponding one of said word counts by said total number of words in a corresponding one of said lists;

wherein said tag clouds are based on said normalized word counts.

3. The method of claim 2, wherein said step of creating said tag cloud further comprises:

for each given one of said words in each of said word lists, other than said stop words, comparing a corresponding one of said normalized word counts to a pre-defined threshold; and

including each given one of said words in each of said word lists in a corresponding one of said tag clouds, only if said pre-defined threshold is exceeded.

4. The method of claim 2, wherein said displaying step comprises displaying given ones of said words in said at least one of said tag clouds in a font size based on said normalized word count.

5. The method of claim 2, wherein said displaying step comprises displaying given ones of said words in said at least one of said tag clouds in alphabetical order.

6. The method of claim 2, wherein said displaying step comprises displaying given ones of said words in said at least one of said tag clouds in order of occurrence in said corresponding one of said hierarchical levels.

7. The method of claim 2, wherein said displaying step comprises displaying dynamically in response to hovering over said corresponding one of said hierarchical levels.

8. The method of claim 2, further comprising:

obtaining a user selection of an entry in a given one of said tag clouds; and

in response to obtaining said selection, highlighting all of said hierarchical levels containing said selected entry.

9. The method of claim 1, wherein said displaying comprises displaying each of said tag clouds in association with a label for a corresponding one of said hierarchical levels.

10. The method of claim 1, wherein said displaying comprises displaying said at least one of said tag clouds in response to a user selection of said corresponding one of said hierarchical levels.

11. The method of claim 1, wherein said displaying comprises displaying said at least one of said tag clouds in proximity to said label for said corresponding one of said hierarchical levels.

12. The method of claim 1, further comprising providing a system, wherein the system comprises distinct software modules, each of the distinct software modules being embodied on a computer-readable storage medium, and wherein the distinct software modules comprise at least a word count extraction engine module, a tag cloud generation engine module, a control logic module, and a user interface module;

wherein;

said obtaining of said word list is carried out by said word count extraction engine module and said control logic module executing on at least one hardware processor;

said creating of said tag cloud is carried out by said tag cloud generation engine module and said control logic module executing on said at least one hardware processor; and

said displaying of said at least one of said tag clouds is facilitated by said user interface module executing on said at least one hardware processor.