70. A method of indexing and searching timed media files, as recited in claim 64 , wherein a relatedness rank is calculated from each said relatedness value; and the relatedness rank for two segments A and B indicates the relative relatedness as compared to the relatedness of segments that are near A and B.
70. A method of indexing and searching timed media files, as recited in claim 64 , wherein a relatedness rank is calculated from each said relatedness value; and the relatedness rank for two segments A and B indicates the relative relatedness as compared to the relatedness of segments that are near A and B. 71. A method of indexing and searching timed media files, as recited in claim 70 , wherein said lexical cohesive function is the inside density of the relatedness rank of the subset of segments.