Systems and methods for determining atypical language

• US 9,690,849 B2
• Filed: 03/07/2014
• Issued: 06/27/2017
• Est. Priority Date: 09/30/2011
• Status: Active Grant

• Current Assignee: Thomson Reuters Enterprise Centre GmbH (The Woodbridge Co. Ltd.)
• Original Assignee: Thomson Reuters Global Resources Unlimited Company (The Woodbridge Co. Ltd.)
• Inventors: Al-Kofahi, Khalid, Shah, Sameena, Dorr, Dietmar, Sisk, Jacob
• Primary Examiner(s): Ries, Laurie
• Application Number:
  US14/201,134
• Publication Number:
  US 20140344279A1
• Time in Patent Office: 1,208 Days
• CPC Class Codes: G06F 16/335 Filtering based on additional data, e.g. user or group profiles filtering in web context G06F16/9535, G06F16/9536
• CPC Class Codes: G06F 16/35 Clustering; Classification
• CPC Class Codes: G06F 40/242 Dictionaries
• CPC Class Codes: G06F 40/284 Lexical analysis, e.g. tokenisation or collocates
• CPC Class Codes: G06Q 10/10 Office automation; Time management
• CPC Class Codes: G06Q 50/18 Legal services

Abstract

A method includes analyzing a cluster of conceptually-related portions of text to develop a model and calculating a novelty measurement between a first identified conceptually-related portion of text and the model. The method further includes transmitting a second identified conceptually-related portion of text and a score associated with the novelty measurement from a server to an access device via a signal. Another method includes determining at least two corpora of conceptually-related portions of text. The method also includes calculating a common neighbors similarity measurement between the at least two corpora of conceptually-related portions of text and if the common neighbors similarity measurement exceeds a threshold, merging the at least two corpora of conceptually-related portions of text into a cluster or if the common neighbors similarity measurement does not exceed a threshold, maintaining a non-merge of the at least two corpora of conceptually-related portions of text.

Claims

1. A computer-implemented method comprising:

analyzing a first cluster of conceptually-related portions of text to identify a probability for each of the one or more portions of texts within the first cluster of conceptually-related portions of text, wherein the first cluster of conceptually-related portions of text comprises one or more financial documents and each of the one or more financial documents comprises one or more financial document sections and each of the one or more financial document sections comprises one or more sentences, and wherein the probability is calculated based on the number of occurrences of a given token of a given sentence of a given financial document of the first cluster of conceptually-related portions of text;

developing a model based on the one or more probabilities corresponding to the one or more portions of texts within the first cluster of conceptually-related portions of text;

calculating an abnormality score for each of the one or more sentences of the one or more financial document sections of a first identified conceptually-related portion of text as compared to the model; and

transmitting a second identified conceptually-related portion of text based upon the abnormality score satisfying a threshold.

2. The method of claim 1, wherein the first cluster of conceptually-related portions of text is generated by aggregating one or more financial documents according to an assigned key value.

3. The method of claim 2, wherein the assigned key value is a time period of a given financial document.

4. The method of claim 2, wherein the assigned key value is a sector for a given financial document.

5. The method of claim 2, wherein the assigned key value is a market cap for a given financial document.

6. The method of claim 1, wherein the second identified conceptually-related portion of text comprises one or more sentences identified as atypical.

7. The method of claim 1, wherein the second identified conceptually-related portion of text comprises one or more sentences identified as typical.

8. A system comprising:

a processor;

a memory coupled to the processor; and

a processing program stored in the memory for execution by the processor, the processing program comprising;

an analysis module, the analysis module configured to analyze a cluster of conceptually-related portions of text to identify a probability for each of the one or more portions of texts within the first cluster of conceptually-related portions of text, wherein the first cluster of conceptually-related portions of text comprises one or more financial documents and each of the one or more financial documents comprises one or more financial document sections'"'"' and each of the one or more financial document sections comprises one or more sentences, and wherein the probability is calculated based on the number of occurrences of a given token of a given sentence of a given financial document of the first cluster of conceptually-related portions of text and to develop a model based on the one or more probabilities corresponding to the one or more portions of texts within the first cluster of conceptually-related portions of text;

a novelty module, the novelty module configured to calculate an abnormality score for each of the one or more sentences of the one or more financial document sections of a first identified conceptually-related portion of text as compared to the model; and

a transmission module, the transmission module configured to transmit a second identified conceptually-related portion of text based upon the abnormality score satisfying a threshold.

9. The system of claim 8, wherein the first cluster of conceptually-related portions of text is generated by aggregating one or more financial documents according to an assigned key value.

10. The system of claim 9, wherein the assigned key value is a time period of a given financial document.

11. The system of claim 9, wherein the assigned key value is a sector for a given financial document.

12. The system of claim 9, wherein the assigned key value is a market cap for a given financial document.

13. The system of claim 8, wherein the second identified conceptually-related portion of text comprises one or more sentences identified as atypical.

14. The system of claim 8, wherein the second identified conceptually-related portion of text comprises one or more sentences identified as typical.