Systems and methods for employing an orthogonal corpus for document indexing

1. A method for extending a body of textual reference material to generate a directory for accessing documents from a document collection that is initially unconnected with said body of textual reference material, comprising

processing the body of textual reference material into a plurality of text portions, each text portion being associated with a single topic from a plurality of topics,

processing said plurality of text portions, generating keywords for each, assigning a weight to each keyword in a text portion, associating a keyword with a corresponding text portion if the weight of said keyword in said corresponding text portion is equal to or greater than a weight of said keyword in the text portions other than the corresponding text portion, or is equal to or greater than a predetermined threshold value, and forming first keyword-weight pairs of said associated keywords, and

applying the associated keywords to at least one document from the initially unconnected document collection, and forming second keyword-weight pairs associated with the at least one document, forming a numeric score between the first and second keyword-weight pairs, and associating based on said score the at least one document from the initially unconnected document collection and the single topic from the plurality of topics.

2. A method according to claim 1 comprising creating a graphical interface representative of an identified orthogonal organization of topics for allowing a user to access information retrieved from the document collection and having an association with a topic.

3. A method according to claim 2 , wherein the orthogonal organization of topics includes a hierarchical organization of substantially orthogonal topics.

4. A method according to claim 1 , wherein the body of textual reference material is selected from the group consisting of an encyclopedia, a dictionary, a text book, a novel, a newspaper, a web site, and a glossary.

5. A method according to claim 1 , wherein processing the body of textual reference material includes identifying a table of contents and chapter headings for the body of reference material.

6. A method according to claim 1 , wherein processing the body of textual reference material includes identifying a keyword index for the body of reference material.

7. A method according to claim 1 , wherein processing the body of textual reference material includes identifying definition entries in a dictionary or glossary.

8. A method according to claim 1 , wherein processing the body of textual reference material includes normalizing the identified orthogonal organization of topics.

9. A method according to claim 1 , wherein processing the plurality of text portions includes generating a word map representative of a statistical analysis of words contained in at least one text portion.

10. A computer readable medium having computer readable program codes embodied therein for causing a computer to extend a body of textual reference material to generate a directory for accessing documents from a document collection that is initially unconnected with said body of textual reference material, the computer readable medium program codes performing functions comprising:

processing the body of textual reference material into a plurality of text portions, each text portion being associated with a single topic from a plurality of topics,

processing said plurality of text portions, generating keywords for each, assigning a weight to each keyword in a text portion, associating a keyword with a corresponding text portion if the weight of said keyword in said corresponding text portion is equal to or greater than a weight of said keyword in the text portions other than the corresponding text portion, or is equal to or greater than a predetermined threshold value, and forming first keyword-weight pairs of said associated keywords, and

applying the associated keywords to at least one document from the initially unconnected document collection, and forming second keyword-weight pairs associated with the at least one document, forming a numeric score between the first and second keyword-weight pairs, and associating based on said score the at least one document from the initially unconnected document collection and the single topic from the plurality of topics.