Automated topic discovery in documents and content categorization
First Claim
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1. A method implemented on a computer comprising one or more processors and memory, comprising:
- receiving a text content;
tokenizing the text content into a plurality of terms, each term comprising one or more words or phrases;
identifying a first semantic attribute, wherein the first semantic attribute is selected from the group of attributes consisting of at least an action, a thing, a person, an agent of an action, a recipient of an action or a thing, a state of an object, a mental state of a person, a physical state of a person, a positive or negative opinion, a name of a product, a name of a service, a name of an organization;
identifying a first term in the text content, wherein the first term is associated with the first semantic attribute;
identifying a second term in the text content, wherein the second term is not associated with the first semantic attribute;
assigning an importance value to the first term as bearing more importance than the second term based on the first semantic attribute, wherein the importance value is a measurement for the role of the first term in representing a topic or an information focus in the text content; and
outputting the first term or the second term to represent the content of the document,when the first term is output, the function of the first term includes being a tag or a label to represent a topic or a summary of the text content, or a category node,when the first term and the second term are output and displayed, the display format includes selecting the font type, size, color, shape, position, or orientation of or distance between the first term and the second term based on the importance value,when the text content containing the first term is made searchable using a query or is associated with a search index to produce a search result, the search result is ranked based at least on the importance value.
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Abstract
A computer-assisted method for discovering topics and categorizing contents in a document includes the steps of calculating an importance score for a term based on grammatical roles, parts of speech, and semantic attributes, selecting terms based on the importance score values of the respective terms, and outputting terms comprising the selected term to represent topics in the document, and building a category structure based on the selected terms.
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Citations
25 Claims
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1. A method implemented on a computer comprising one or more processors and memory, comprising:
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receiving a text content; tokenizing the text content into a plurality of terms, each term comprising one or more words or phrases; identifying a first semantic attribute, wherein the first semantic attribute is selected from the group of attributes consisting of at least an action, a thing, a person, an agent of an action, a recipient of an action or a thing, a state of an object, a mental state of a person, a physical state of a person, a positive or negative opinion, a name of a product, a name of a service, a name of an organization; identifying a first term in the text content, wherein the first term is associated with the first semantic attribute; identifying a second term in the text content, wherein the second term is not associated with the first semantic attribute; assigning an importance value to the first term as bearing more importance than the second term based on the first semantic attribute, wherein the importance value is a measurement for the role of the first term in representing a topic or an information focus in the text content; and outputting the first term or the second term to represent the content of the document, when the first term is output, the function of the first term includes being a tag or a label to represent a topic or a summary of the text content, or a category node, when the first term and the second term are output and displayed, the display format includes selecting the font type, size, color, shape, position, or orientation of or distance between the first term and the second term based on the importance value, when the text content containing the first term is made searchable using a query or is associated with a search index to produce a search result, the search result is ranked based at least on the importance value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method implemented on a computer comprising one or more processors and memory, comprising:
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receiving a text content; tokenizing the text content into a plurality of terms, each term comprising one or more words or phrases; identifying a first part of speech, wherein the first part of speech includes at least a noun or a pronoun, a transitive or intransitive verb, a modal verb, a link verb, an adjective, an adverb, a preposition, an article, a conjunction; identifying a first term in the text content, wherein the first term is associated with the first part of speech; identifying a second term in the text content, wherein the second term is not associated with the first part of speech; assigning an importance value to the first term as bearing more importance than the second term based on the first part of speech, wherein the importance is a measurement for the role of the first term in representing a topic or an information focus in the text content; and outputting the first term or the second term to represent the content of the document, when the first term is output, the function of the first term includes being a tag or a label to represent a topic or a summary of the text content, or a category node, when the first term and the second term are output and displayed, the display format includes selecting the font type, size, color, shape, position, or orientation of or distance between the first term and the second term based on the importance value, when the text content containing the first term is made searchable using a query or is associated with a search index to produce a search result, the search result is ranked based at least on the importance value. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system for processing or presenting information, comprising:
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one or more processors and memory configured to receive a first term extracted from a text content; receive a second term extracted from at least a portion of the text content, wherein the portion of the text content contains or is associated with the first term; display the first term as a first-level entity in a hierarchical format; display the second term as a second-level entity in the hierarchical format, wherein the second-level entity is displayed as an element under or subordinate to the first level entity, and wherein the first term is extracted from the text content with the steps of; (a) tokenizing the text content into a plurality of terms comprising the first term and the second term, each term comprising an element selected from the group consisting of a word, a phrase, a sentence, a paragraph, (b) defining a first grammatical attribute or a first semantic attribute, (c) pre-determining a first importance measure for the first grammatical attribute or the first semantic attribute, (d) identifying a term associated with the first grammatical attribute or the first semantic attribute, and (e) selecting the term as the first term based at least on the first grammatical attribute or the first semantic attribute or the first importance measure; when the first term represents a first-level category node, and the second term represents a second-level category node or the content of the first-level category, the embodiment of at least one category node includes a folder or a directory, or a link name associated with the linked contents on a device selected from the group consisting at least of a computer file system, an email system, a web-based or cloud-based system, a mobile or handheld computing or communication device; when the first term and the second term are displayed, the display format includes representing the first term as a topic or information focus in the text content, and the second term as a comment or attribute associated with the topic or the information focus; when the text content or the first term is made searchable using a query or is associated with a search index to produce a search result, the display format of the search result includes the first term with one or more of its corresponding second terms if the first term matches a keyword in the search query. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification