WO2009004624A4 - A method for organizing large numbers of documents - Google Patents

A method for organizing large numbers of documents Download PDF

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Publication number
WO2009004624A4
WO2009004624A4 PCT/IL2008/000912 IL2008000912W WO2009004624A4 WO 2009004624 A4 WO2009004624 A4 WO 2009004624A4 IL 2008000912 W IL2008000912 W IL 2008000912W WO 2009004624 A4 WO2009004624 A4 WO 2009004624A4
Authority
WO
WIPO (PCT)
Prior art keywords
document
node
documents
text
nodes
Prior art date
Application number
PCT/IL2008/000912
Other languages
French (fr)
Other versions
WO2009004624A2 (en
WO2009004624A3 (en
Inventor
Yiftach Ravid
Amir Milo
Original Assignee
Equivio Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Equivio Ltd. filed Critical Equivio Ltd.
Priority to US12/667,664 priority Critical patent/US8825673B2/en
Publication of WO2009004624A2 publication Critical patent/WO2009004624A2/en
Publication of WO2009004624A3 publication Critical patent/WO2009004624A3/en
Publication of WO2009004624A4 publication Critical patent/WO2009004624A4/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/40—Document-oriented image-based pattern recognition
    • G06V30/41—Analysis of document content
    • G06V30/418—Document matching, e.g. of document images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
    • G06F16/35—Clustering; Classification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/10—Text processing
    • G06F40/194—Calculation of difference between files
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/40—Document-oriented image-based pattern recognition
    • G06V30/41—Analysis of document content
    • G06V30/416—Extracting the logical structure, e.g. chapters, sections or page numbers; Identifying elements of the document, e.g. authors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24—Querying
    • G06F16/248—Presentation of query results
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/28—Databases characterised by their database models, e.g. relational or object models
    • G06F16/284—Relational databases
    • G06F16/285—Clustering or classification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/93—Document management systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/21—Monitoring or handling of messages
    • H04L51/216—Handling conversation history, e.g. grouping of messages in sessions or threads

Abstract

A computer product including a data structure for organizing of a plurality of documents, and capable of being utilized by a processor for manipulating data of the data structure and capable of displaying selected data on a display unit. The data structure includes a plurality of directionally interlinked nodes, each node being associated with one or more documents having a header and body text. All the documents are associated with a given node and have identical normalized body text. All documents that have identical normalized body text are associated with the same node. One or more of the nodes is associated with more than one document. For any node that is a descendent of another node, the normalized body text of each document associated with the node is inclusive of the normalized body text of a document that is associated with the other node.

Claims

76AMENDED CLAIMS [Received by the International Bureau on 19 JAN 2010 (19.01.2010)]CLAIMS
1. A computer product including a data structure for organizing of a plurality of documents, and capable of being utilized by a processor for manipulating data of said data structure and capable of displaying selected data on a display unit; said data structure comprising: a plurality of directionally interlinked nodes, each node being associated with a fingerprint of one or more documents having at least a header and body text; and wherein all documents having a fingerprint that is associated with a given node have substantially identical normalized body text, and wherein all documents having substantially identical normalized body text have a fingerprint that is associated with a given node , and wherein at least one node being associated with a fingerprint of more than one document; for any first node of said nodes that is a descendent of a second node of said nodes, the normalized body text of each document having a fingerprint associated with said first node is substantially inclusive of the normalized body text of each document having a fingerprint being associated with said second node.
2. The computer product of claim I5 wherein all documents having a fingerprint that is associated with a given node have substantially identical normalized subject parameter in said header.
3. The computer product of claim 1 wherein said documents are emails.
4. The computer product of claim 1 wherein said documents are emails and wherein all emails having a fingerprint that is associated with a given node further having substantially identical normalized attachments.
5. The computer product of claim 1, wherein said plurality of directionally interlinked nodes including at least a node, a first descendant node descendant from said node, and a second descendant node descendant from said first descendent node. 77
6. The computer product of claim 1 wherein said plurality of directionally interlinked nodes including at least a node, and two descendant node, each independently descendant from said node.
7. The computer product of claim 1 wherein said plurality of nodes being arranged in terms of more than one tree, wherein each tree comprises at least one node from said plurality of directionally interlinked nodes and wherein each tree comprises at least a root node and at least a leaf node, wherein a root node is a node that is not a descendant of any other node, and a leaf node is a node that has no descendent nodes; and wherein a node is not prohibited from being both a root node and a leaf node, and wherein all nodes that are descendant from said root node are contained by said tree.
8. The computer product of claim 7 wherein said plurality of nodes being arranged in terms of at least a first tree and a second tree that contain a link to one another; said link is indicative of the fact that said first tree contains a node that is associated with a fingerprint of a document that near-duplicates to a document that has a fingerprint that is associated with a node in said second tree.
9. The computer product of claim 7 wherein said plurality of nodes being arranged in terms of at least a first tree and a second tree that contain a link to one another; said link is indicative of the fact that said first tree contains a node that is associated with a fingerprint of an email that near-duplicates to an email that has a fingerprint that is associated with a node in said second tree, and wherein near duplication is determined based on at least the comparison between attachments associated with said email of said first tree and said email of said second tree.
10. A processor and associated display communicating with the data structure of claim 8, and capable of manipulating data of said data structure and displaying selected data on a display unit, wherein said processor further being configured to display said first tree and a node from said second tree in close proximity on said display unit. 78
11. A processor and associated display communicating with the data structure of claim 7, and capable of manipulating data of said data structure and displaying selected data on a display unit wherein said processor further being configured to indicate on the display unit which nodes are the leaf nodes.
12. The processor and associated display of claim 11 wherein said processor is configured to mark for said display unit an entire thread inclusively including all the nodes directly between a root node and given leaf node.
13. The processor and associated display of claim 12 wherein in response to user command said processor is configured to mark nodes, on said display unit, in order to indicate (i) whether a thread has been read, or (ii) the relevance of the thread, or (iii) the level of importance of the thread; said processor is further configured to allow the addition of reviewer comments on said display unit.
14. A processor and associated display communicating with the data structure of claim 1, and capable of manipulating data of said data structure and displaying selected data on a display unit, wherein said processor further being configured to compare text of two documents each document having a fingerprints, said fingerprints being associated with different nodes.
15. A processor and associated display communicating with the data structure of claim 1, and capable of manipulating data of said data structure and displaying selected data on a display unit wherein said processor further being configured to display the subject and body text of a document, said document having a fingerprint that is associated with said node.
16. The processor and associated display of claim 15 wherein said node is represented by a clickable icon, and wherein said processor further being configured to display the subject and body text of a document having a fingerprint that is associated with said node, in response to clicking on said icon. 79
17. The processor and associated display of claim 16 wherein said processor further being configured to display a plurality of header parameters for the documents, having a fingerprint associated with the node.
18. The processor and associated display of claim 17 wherein said plurality of header parameters are arranged in tabular form.
19. The processor and associated display of claim 15 wherein at least one of said documents includes at least one member of a group that includes: signature, disclaimers, attachment notification, and at least one attachment, and wherein said processor is configured to suppress the display of at least one of said members .
20. The processor and associated display of claim 15 wherein said document is an email and said processor further configured to display one or more attachments of said email having a fingerprint being associated with said node.
21. A processor and associated display communicating with the data structure of claim 1, and capable of manipulating data of said data structure and displaying selected data on a display unit, wherein said processor further being configured to display a list of documents that have respective fingerprints that are associated with leaf nodes, wherein a leaf node comprises a node that has no descendant nodes.
22. The processor and associated display of claim 21 in which entries in said displayed list comprise a listing of the documents having respective documents associated with nodes of which said leaf node is a descendant.
23. The computer product according to claim 1 wherein said documents are emails, and wherein at least two from among said emails are obtained from different email archives.
24. The computer product of claim 1 wherein said documents are emails, and further comprising additional nodes associated with fingerprints of presumed documents. 80
25. The computer product of claim 1, wherein the body text of each document having a fingerprint associated with said first node is substantially inclusive of the body text of each document having a fingerprint that is associated with said second node, irrespective of whether a normalized subject parameter from a header of a document associated with said first node and a normalized subject parameter from a header of a document associated with said second nodes are identical.
26. The computer product of claim 25, wherein all documents having a fingerprint associated with a given node further having substantially the same normalized subj ect parameter in said header.
27. The computer product of claim 1, wherein said documents are emails, and wherein all emails having a fingerprint associated with a given node further having substantially the same normalized one or more attachments; and wherein the body text of each email associated with said first node is substantially inclusive of the body text of each email that is associated with said second node, irrespective of whether a normalized attachment in an emails associated with said first node and a normalized attachment in an email associated with said second nodes are identical.
28. The computer product of claim 27 wherein said second node includes at least one attachment, which is not included in said first node and wherein said first node is identified by an inclusive minus flag.
29. A method for organizing documents into nodes, in which a node represents a group of substantially equivalent documents, said method comprising: (i) providing a plurality of original documents, each comprising a header and a body, and wherein said header comprises at least one parameter and wherein said body comprises text,
(ii) selecting a document from among said documents and associating the document with a node, comparing at least a portion of the body text of said document to at least a portion of the body texts of other documents from 81
amongst said plurality of documents, and in the case of a match, merging the node associated with said document with a node associated with the matching document,
(iii) searching the body of said document to locate a first instance of header- type text, wherein said header-type text contains at least one header parameter;
(iv) constructing a presumed document comprising a header and a body, wherein said header of said presumed document comprises one or more parameters from said header-type text located within said body of said document, and wherein said body of said presumed document substantially comprises the text located after said header-type text in said body of said original document, such that the body text of the document is inclusive of the body text of the presumed document, and associating said presumed document with a node; (v) comparing at least a portion of the body text of the presumed document to at least a portion of the body texts of at least one other document from among said plurality of documents and in the case of a match, merging a node associated with said presumed document with a node associated with the matching document, (vi) if the comparison of (v) does not find a match, processing repeatedly the remainder of the body of said document for successive instances of header- type text, as stipulated in stages (iii)-(v), and for each instance, constructing a presumed document, comparing for any matching documents to the presumed document, and if found, merging the nodes associated with the matching documents, until no new instances of header-type text are found.
30. The method of claim 29 further comprising
(vii) wherein said association of said document with a node includes generating a fingerprint of said document and associating said fingerprint with a node; and 82
(viii) wherein said association of said presumed document with a node includes generating a fingerprint of said presumed document and associating said fingerprint with a node.
31. The method of claim 29 wherein (ii) is applied to selected documents from amongst said plurality of documents.
32. The method for organizing documents of claim 30, further comprising the step of linking nodes, in which linking implies that the text of a document on a first side of said link is substantially inclusive of the text of a document on a second side of said link, and wherein (v) further comprising linking the associated node to be a parent of the node stipulated in (ii); and wherein (vi) comprising linking the associated node to be a parent of the associated node of the most recent iteration of (v).
33. The method of claim 30, wherein (ii) and (v) comprising comparing both of at least a portion of the body text and a normalized subject parameter, with at least a portion of the body text and a normalized subject parameter of said other documents.
34. The method of claim 30, wherein said documents are emails and wherein (ii) comprising the following: selecting an email from among said emails and associating the email with a node, comparing at least a portion of the body text of said email to at least a portion of the body texts of other emails from amongst said plurality of emails, and further comparing attachments associated with said email to attachments associated with other emails from amongst said plurality of emails and in the case of a match, merging the node associated with said email with a node associated with the matching email.
35. The method of claim 33 further comprising displaying on the display unit symbols indicative of said nodes, and further comprising affiliating for each node a body text and subject parameter of at least one document associated with the node.
36. The method of claim 35 further comprising affiliating each node with a plurality of header parameters from each document associated with the node, said plurality of header parameters being arranged in a table.
37. The method of claim 36 wherein said documents are emails and wherein said plurality of header parameter comprises two or more fields from the email header selected from the group of fields consisting of: "To", "From", "Subject", and "Date".
38. The method of claim 30 further comprising displaying the nodes; and suppressing nodes associated with a presumed document from the display.
39. The method of claim 38 further comprising affiliating each displayed node with header parameters of each document associated with said displayed node; and affiliating header parameters of documents associated with suppressed nodes with a node associated with a document from which the presumed document associated with said suppressed node is constructed.
40. The method of claim 30 wherein (ii) further comprises comparing for near-duplication at least a portion of the body text of said document to at least a portion of the body texts of said other documents from amongst said plurality of documents, and creating an association between nodes that are associated with documents found to near-duplicate each other.
41. The method of claim 30 wherein said documents are emails and wherein (ii) further comprises comparing for near duplication at least a portion of the body text of said email to at least a portion of the body texts of said other email from amongst said plurality of email, and comparing for near duplication one or more attachments associated with said email to one or more attachments associated with said other emails from amongst said plurality of emails, and creating an association between nodes that are associated with emails found to near-duplicate each other.
42. The method of claim 40 further including enabling a user to define the degree of similarity between documents for documents to be considered near- duplicating. 84
43. The method of claim 30 further comprising creating an association between nodes that are associated with documents having related Conversation ID or related Message ID indicators.
44. The method of claim 30 further comprising removing at least one member of the group consisting of: disclaimers, signatures, program added text and attachment notifications from the body text of documents, and replacing unique text of each removed member with a unique short text identifier prior to said comparing in (ii), wherein said comparing is applied to at least a portion of said body text after said replacing.
45. A method for reducing duplicate document display of a large number of documents, said method comprising: a) comparing a fingerprint of a document with previously stored document fingerprints, wherein a fingerprint is formed for each of at least a portion of the normalized body text and a normalized subject parameter of a document, wherein said comparison for detecting and indicating duplicating documents; b) searching the document for instances of header-type text, searching in text order through the normalized body text of the document, and if header-type text is found in said search, i) deriving a presumed document comprising a header and a body text, by treating parameters from the instance of header-type text in the document as parameters of a header for the presumed document, and by treating all ensuing body text of the normalized body text of the document as the body text of the presumed document, such that the body text of the document is inclusive of the body text of the presumed document, and applying step a) to the presumed documents, and ii) if the fingerprint of the presumed document is unique, continuing to search the normalized body text of the document from which the presumed document is derived for further instances of header-type text, searching in text order through the normalized body text of the document, and if a further 85
instance of header-type text is found in said search, applying step i) to derive and process an additional presumed document, and iii) repeating step ii) until no more instances of header-type text are found.
46. The method of claim 45 wherein a) is applied to selected documents from amongst said large group of documents.
47. The method of claim 45 further comprising providing a plurality of nodes, and associating each document having a unique fingerprint with a unique node, and associating each document detected as duplicating to a prior document with the node associated with the prior document.
48. The method of claim 47 further comprising linking nodes to provide that a node associated with a first presumed document becomes the parent of the node associated with the document from which the first presumed document is derived, and to provide that the node associated with each sequentially derived presumed document derived from the same document becomes a parent of the node associated with the previously derived presumed document.
49. The method of claim 48 further comprising removing each of disclaimers, signatures, program added text and attachment notifications from the body text of documents, and replacing each unique disclaimer, signature, program added text, and attachment notification with a unique short identifier prior to a), wherein said fingerprint of a) is a fingerprint of the body text after said replacement.
50. The method of claim 48 further comprising displaying said nodes in a computer format, and affiliating each node with the body text and subject parameter of the document associated with the node.
51. The method of claim 50 further comprising affiliating each node with a plurality of header parameters from each document associated with the node, said plurality of header parameters being arranged in a table. 86
52. The method of claim 51 wherein said documents are emails and wherein said headers comprises fields from the email headers, including "To", "From", "Subject", and "Date".
53. The method of claim 48 further comprising displaying documents in a data structure able to be sorted according to one or more members of the group consisting of: document identifier, document set, node address, email attachments, inclusive flag, inclusive minus flag, first copy of an inclusive flag.
54. The method of claim 45 wherein said comparison of a) further for detecting and indicating near-duplicating documents.
55. The method of claim 54 further comprising enabling a user to set the degree of similarity for documents to be considered as near-duplicating.
56. The method of claim 54 further comprising associating documents with document sets by associating to a document set: a first document, and documents that are associated with a node that is linked to the node associated with a document already associated with said document set, and documents that near-duplicate to a document already associated with said document set.
57. The method of claim 56 further comprising associating to a document set documents that have related Conversation ID or related Message ID indicators with a document already associated with said same document set.
58. The method of claim 45 further comprising: c) storing the document fingerprint, for future comparison with other document fingerprints.
59. The method of claim 58 further comprising : d) if a document is found to be a duplicate of a prior document, suppressing step c).
60. The method of claim 45 further comprising e) forming a subset of the large number of documents by including each document into the subset except for documents that duplicate to another 87
document already in the subset, and except for documents that duplicate to a presumed document whereby only a single copy of inclusive documents are in the subset.
61. The method of claim 60 further comprising affiliating each document in said subset with other documents that duplicate to said document and with documents that duplicate to a presumed document derived from said document.
PCT/IL2008/000912 2007-07-02 2008-07-02 A method for organizing large numbers of documents WO2009004624A2 (en)

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Application Number Priority Date Filing Date Title
US12/667,664 US8825673B2 (en) 2007-07-02 2008-07-02 Method for organizing large numbers of documents

Applications Claiming Priority (6)

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US94760607P 2007-07-02 2007-07-02
US60/947,606 2007-07-02
US97497407P 2007-09-25 2007-09-25
US60/974,974 2007-09-25
US11/968,433 2008-01-02
US11/968,433 US20090012984A1 (en) 2007-07-02 2008-01-02 Method for Organizing Large Numbers of Documents

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WO2009004624A3 WO2009004624A3 (en) 2009-04-02
WO2009004624A4 true WO2009004624A4 (en) 2010-04-15

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