Printer image log system for document gathering and retention

• US 8,699,075 B2
• Filed: 11/21/2012
• Issued: 04/15/2014
• Est. Priority Date: 04/02/2009
• Status: Active Grant

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Privault, Caroline, Ciriza, Victor, Reisler, Yeriv Reave, Ellefson, Jean M.
• Primary Examiner(s): Williams, Kimberly A
• Application Number:
  US13/683,143
• Publication Number:
  US 20130077857A1
• Time in Patent Office: 510 Days
• Field of Search: 358/403, 358/1.9, 358/1.15, 358/1.16, 382/159, 382/305, 382/321, 726 26- 28, 707661-668, 707/672, 707/673, 719/317
• US Class Current: 358/1.16
• CPC Class Codes: G06F 16/58 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G06F 18/21 Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
• CPC Class Codes: G06F 18/214 Generating training patterns; Bootstrap methods, e.g. bagging or boosting
• CPC Class Codes: G06V 10/70 using pattern recognition or machine learning optical pattern recognition or electronic computations therefor G06V10/88
• CPC Class Codes: H04N 1/00222 details of image data generation or reproduction, e.g. scan-to-email or network printing
• CPC Class Codes: H04N 1/32117 in a separate transmission or protocol signal prior to or subsequent to the image data transmission, e.g. in digital identification signal [DIS], in non standard setup [NSS] or in non standard field [NSF] for mode signalling H04N1/333
• CPC Class Codes: H04N 1/32529 of different type, e.g. internal and external devices
• CPC Class Codes: H04N 2201/3207 of an address
• CPC Class Codes: H04N 2201/3232 of a page, copy or picture number
• CPC Class Codes: H04N 2201/3276 of a customised additional information profile, e.g. a profile specific to a user ID
• CPC Class Codes: H04N 2201/3277 The additional information being stored in the same storage device as the image data

Abstract

A system and method for document image acquisition and retrieval find application in litigation for responding to discovery requests. The method includes receiving automatically acquired electronic image logs comprising image data and associated records for documents processed by a plurality of image output devices within an organization. When a request for document production is received, the image logs (and/or information extracted therefrom) are automatically filtered through at least one classifier trained to return documents responsive to the document request, and documents corresponding to the filtered out image logs are output. One of the filters may be configured for filtering out documents that include attorney-client exchanges.

Claims

1. A method for processing a document production request received by an organization, comprising:

receiving electronic image logs comprising image data and associated records for documents processed by a plurality of image output devices within the organization;

with a data processing device, automatically filtering the electronic image logs through a first classifier trained to return documents that are responsive to the document production request and a second classifier trained to return those of the responsive documents comprising attorney-client exchanges, the first and second classifiers having each been trained through a machine learning method with respective training examples of the documents labeled with respective classes; and

outputting responsive documents with a label indicating whether they comprise attorney-client exchanges or not.

2. The method of claim 1, further comprising performing optical character recognition of the image data to identify textual content of the documents and wherein the electronic image logs filtered in the classification of the documents includes the textual content.

3. The method of claim 1, further comprising identifying duplicate document images and archiving only a single one of the duplicate images which is associated with plural electronic image logs.

4. The method of claim 1, wherein at least one of the image output devices is a multifunction device and wherein for documents processed by scanning, the acquiring of the associated records includes detecting an identity of a person performing the scanning.

5. The method of claim 1, wherein the document production request is a request for discovery of responsive documents in litigation.

6. The method of claim 1, further comprising identifying features of documents contributing to their classification as responsive or non-responsive to the document production request.

7. The method of claim 1, wherein at least one of the first and second classifiers is a binary classifier.

8. The method of claim 1, wherein the receiving electronic image logs includes automatically acquiring the image data from the image output devices or from a print server communicatively linked to the image output devices.

9. The method of claim 1, further comprising automatically forming a collection of all documents returned by at least one of the at least one classifier and certifying them as a whole so that any tampering is detectable.

10. The method of claim 1, further comprising automatic acquiring of electronic image logs for documents being processed by the plurality of image output devices within an organization to ensure that image data is acquired for all documents being processed by the organization'"'"'s image processing devices.

11. The method of claim 10, wherein the automatically acquiring image data precludes acquiring image data resident on a workstation which has not been output for processing by the image output device.

12. The method of claim 1, wherein the electronic image log records include job information and user information.

13. The method of claim 1, wherein the filtering is performed at a location outside the control of the organization.

14. A computer program product comprising a non-transitory recording medium encoding instructions, which when executed on a computer causes the computer to perform the method of claim 1.

15. A computer implemented system for performing the method of claim 1 comprising software instructions stored in memory for performing the method and at least one computer processor, in communication with the memory, for executing the instructions.

16. A computer implemented system for performing the method of claim 1 comprising software instructions stored in memory for performing the method and at least one processor, in communication with the memory, for executing the instructions.

17. A computer implemented system for processing a document production request received by an organization, comprising:

a component which receives electronic image logs comprising image data and associated records for documents processed by a plurality of image output devices within the organization;

a selection component which automatically filters the electronic image logs or information extracted therefrom through a first classifier trained to return documents responsive to a document production request and a second classifier trained to return those of the responsive documents that comprise attorney-client exchanges; and

at least one computer processor for implementing the components.

18. The system of claim 17, further comprising a capturing component which automatically acquires image data and associated records for documents being processed by the plurality of image output devices, wherein the capturing component includes an OCR processing component which processes the acquired documents to identify textual content and wherein the first classifier is configured for being trained on text content of a training set of responsive documents.

19. The system of claim 17, further comprising a capturing component which automatically acquires image data and associated records for documents being processed by the plurality of image output devices, wherein the capturing component is maintained at a location remote from the image output devices.

20. The method of claim 17, further comprising a watchdog component which allows users to review archived electronic image logs without modifying or deleting them.

21. A method comprising:

receiving electronic image logs for documents being printed, copied, scanned, or faxed by image output devices within an organization, the image output devices being selected from printers, copiers, scanners, fax machines and multifunction devices;

with a data processing device, training first and second binary classifiers with a training set of responsive documents;

automatically filtering the image logs or information extracted therefrom through the first binary classifier to generate a set of responsive documents corresponding to filtered ones of the image logs, and automatically filtering the set of responsive documents through the second binary classifier to identify responsive documents comprising attorney-client exchanges; and

outputting the set of responsive documents with a label indicating whether they comprise attorney-client exchanges or not.

22. A computer program product comprising a non-transitory recording medium encoding instructions, which when executed on a computer causes the computer to perform the method of claim 21.