Indexing and retrieval of textual collections on PDAS

• US 20040205046A1
• Filed: 11/29/2001
• Published: 10/14/2004
• Est. Priority Date: 11/29/2001
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Cohen, Doron, Herscovici, Michael, Soffer, Aya, Maarek-Smadja, Yoelle
• Application Number:
  US09/997,511
• Publication Number:
  US 20040205046A1
• Time in Patent Office: Days
• US Class Current: 707/3
• CPC Class Codes: G06F 16/316 Indexing structures

Abstract

A method for indexing text on a personal digital assistant (PDA). The method may include the steps of transferring dynamic documents from the PDA to an off line mediary, creating off-line, from the dynamic documents, a static index and transferring the off-line static index to the PDA. The off-line mediary may be a mediary, such as a desktop, a server, and a web server.

Claims

1. A method for indexing text on a personal digital assistant (PDA), the method comprises the steps of:

transferring dynamic documents from said PDA to an off line mediary;

creating off-line, from said dynamic documents, a static index; and

transferring said off-line static index to said PDA.

2. A method according to claim 1, wherein said mediary is selected from the group consisting of a desktop, a server, and a web server.

3. A method according to claim 1, further comprising the step of:

updating said off-line static index with said dynamic documents that have been modified, added, or deleted after said step of creating, and

from time to time, transferring said off-line updated static index to said PDA.

4. A method according to claim 3, wherein said from time to time is synchronization of said PDA with said off-line mediary.

5. A method according to claim 1, further comprising the step of:

indexing on-line a dynamic index of said dynamic documents.

6. A method for searching text on a personal digital assistant (PDA), the method comprises the steps of:

searching an on-line static index and compiling therefrom static search results;

searching a dynamic index and compiling therefrom dynamic search results; and

merging said static search results with said dynamic search results.

7. A method for indexing and searching text on a personal digital assistant (PDA), the method comprises the steps of:

creating off-line a static index of dynamic documents for transfer to said PDA; and

searching on said PDA, said static index and an on-line dynamic index, wherein said step of creating is independent from said of searching.

8. A method for indexing text on a personal digital assistant (PDA), the method comprises the steps of:

creating off-line a static index;

transferring said off-line static index to said PDA;

from time to time, updating said off-line static index with dynamic text from said PDA; and

updating said on-line static index with said updated off-line static index.

9. A method according to claim 8, wherein said dynamic text is text on said PDA that has been added or modified after said step of creating.

10. A method according to claim 8, further comprising the step of:

creating an on-line dynamic index from said dynamic text.

11. A method according to claim 8, further comprising the steps of:

detecting when the dynamic index exceeds predefined limits; and

sending a signal.

12. A method according to claim 11, wherein said signal comprising a warming to generate a new, merged static index.

13. A method according to claim 12, wherein said predefined limits are selected from the group consisting of predefined limits for search time, document capacity, or number of dynamic document.

14. A personal digital assistant (PDA) comprising:

an updatable static index; and

a dynamic index.

15. A PDA according to claim 14, wherein said updatable static index is created off-line.

16. A PDA according to claim 14, further comprising:

a search engine for searching said static index and said dynamic index.

17. A PDA according to claim 14, further comprising:

an on-line indexer for creating said dynamic index.