초록 ▼

Disclosed is a method and device for selecting documents, such as Web pages or sites, for presentation to a user, in response to a user expression of interest, during the course of presentation to the user of a document, such as a video or audio selection, whose content varies with time. The method

Disclosed is a method and device for selecting documents, such as Web pages or sites, for presentation to a user, in response to a user expression of interest, during the course of presentation to the user of a document, such as a video or audio selection, whose content varies with time. The method takes advantage of information retrieval techniques to select documents related to the portion of the temporal document in which the user has expressed interest. The method generates the search query to use to select documents by reference to text associated with the portion of the temporal document in which the user has expressed interest, as by using the closed caption test associated with the video, or by using speech recognition techniques. The method further uses a weighting function to weigh the terms used in the search query, depending on their temporal relationship to the user expression of interest. The method uses a buffer to save necessary information about the temporal occurrence of terms in the temporal document.

대표청구항 ▼

1. A method for finding documents which relate to a portion of a temporal document, comprising:(a) in response to a signal of interest at a particular time during the temporal document, identifying a portion of the temporal document for which related documents are to be found; (b) selecting text ass

1. A method for finding documents which relate to a portion of a temporal document, comprising:(a) in response to a signal of interest at a particular time during the temporal document, identifying a portion of the temporal document for which related documents are to be found; (b) selecting text associated with the portion of the temporal document identified, by reference to a buffer wherein is stored each term in text associated with the temporal document, together with a time in the temporal document at which the term occurs; (c) weighting each term in the text selected by a function W(t) according to the time t at which the text occurs relative to the time at which the signal of interest occurs; (d) finding the related documents by use of information retrieval techniques as applied to the text selected; wherein each term in the text associated with the temporal document is determined as that portion of the document is accessed, and is stored in a buffer together with the time in the temporal document at which the term occurs; and wherein [EQU5]where t1 and t2 are constants.