Systems and methods for filtering electronic content
First Claim
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1. A method for filtering an electronic document to determine whether content in the electronic document is inappropriate to users, the method comprising:
- parsing the electronic document to extract the relevant words in the document;
assigning a weight to each relevant word in the document;
extracting a plurality of contexts for each relevant word in the document from a thesaurus dictionary;
assigning a weight to each context in the plurality of contexts;
determining which contexts in the plurality of contexts are the most important contexts in the document; and
restricting access to the electronic document if the most important contexts in the document are in a list of restricted contexts.
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Abstract
Systems and methods for filtering electronic content according to thesaurus-based contextual analysis of the content are described. The systems and methods of the present invention consist of a list-based and context-based filtering software solution that can be used on personal computers, local area networks, local or remote proxy servers, Internet service providers, or search engines to control access to inappropriate content. Access to content is controlled by a filtering software administrator, who determines which sites and which contexts to restrict.
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20 Claims
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1. A method for filtering an electronic document to determine whether content in the electronic document is inappropriate to users, the method comprising:
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parsing the electronic document to extract the relevant words in the document;
assigning a weight to each relevant word in the document;
extracting a plurality of contexts for each relevant word in the document from a thesaurus dictionary;
assigning a weight to each context in the plurality of contexts;
determining which contexts in the plurality of contexts are the most important contexts in the document; and
restricting access to the electronic document if the most important contexts in the document are in a list of restricted contexts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for filtering an electronic document to determine whether content in the electronic document is inappropriate to users, the method comprising:
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checking whether the electronic document is in a list of restricted electronic documents;
determining whether the electronic documents contains an unacceptable number of inappropriate words or pictures;
extracting a plurality of contexts for each word in the document from a thesaurus dictionary;
assigning a weight to each context in the plurality of contexts;
determining which contexts in the plurality of contexts are the most important contexts in the document; and
restricting access to the electronic document if the most important contexts in the document are in a list of restricted contexts. - View Dependent Claims (10, 11, 12, 13, 15, 16, 17, 18, 19, 20)
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14. A system for filtering an electronic document to determine whether content in the electronic document is inappropriate to users, the system comprising:
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a configuration user interface for allowing a filtering software administrator to control the users'"'"' access to electronic documents;
a filtering software plug-in to monitor users'"'"' access to electronic documents;
an Internet sites database storing a list of inappropriate sites;
a context database storing a list of restricted contexts; and
a thesaurus database storing a thesaurus dictionary.
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Specification