Searching, sorting, and displaying video clips and sound files by relevance
View Patent ↗A documents database has a plurality of documents, including but not limited to text files, video clips and sound files. Each document is associated with at least one category of a plurality of categories in a categories database, and each category has at least one keyword. A search request having at least one search term is received from a user, and a categories database is searched for categories having a keyword corresponding to the user search term to identify first level categories. The other keywords from the identified first level categories are retrieved and the documents database is searched for documents having a user search term or a retrieved keyword. The identified documents are then ranked and presented to the user. Other search expansion techniques, and display techniques, are also discussed.
1. A computer-implemented method of ranking categories, each category having at least one keyword, each category having a plurality of associated documents, a search engine identifying relevant categories based upon a comparison of category keywords with search terms in a search request provided to the search engine, the computer-implemented method comprising:
assigning a score to each category using the relationship
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wherein:
X denotes a category;
k1 is a coefficient representing a number of searches made regarding the category X;
NoS x is the number of searches made regarding the category X;
N is a number of categories defined;
NoS i is a number of searches made for each category I;
k2 is a coefficient representing a weight of a relationship between the category X and all other categories;
W ix is a weighted relationship between the category X and another category I;
k3 is a coefficient representing a weighted number of searches made against related categories;
k4 is a coefficient representing a number of video clips related to the category X;
NoV x is the number of video clips related to the category X;
k5 is a coefficient representing a number of video clips related to categories related to the category X; and,
ranking the categories based upon the assigned scores,
wherein the assigning of a score to each category and the ranking of the categories based upon the assigned scores are performed using software running on at least one computer including at least one non-transitory computer storage medium for storing the software for performing the assigning and the ranking.
2. The computer-implemented method of claim 1 further comprising
assigning to a document a highest score of the categories relevant to the document; and
ranking the documents based upon the assigned scores.