Method and apparatus for indexing speech
First Claim
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1. A method of indexing a speech segment, the method comprising:
- identifying at least two alternative speech unit sequences based on the speech segment;
for each speech unit in the at least two alternative speech unit sequences, placing information in an entry in the index that indicates a position of the speech unit in at least one of the two alternative speech unit sequences.
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Abstract
A method of indexing a speech segment includes identifying at least two alternative word sequences based on the speech segment. For each word in the alternative sequences, information is placed in an entry for the word in the index. The information indicates the position of the word in at least one of the alternative sequences.
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Citations
20 Claims
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1. A method of indexing a speech segment, the method comprising:
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identifying at least two alternative speech unit sequences based on the speech segment;
for each speech unit in the at least two alternative speech unit sequences, placing information in an entry in the index that indicates a position of the speech unit in at least one of the two alternative speech unit sequences. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer-readable medium having computer-executable instructions for performing steps comprising:
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receiving a search query;
searching an index for an entry associated with a word in the search query;
for each of a plurality of speech signals, retrieving from the entry an identifier for the speech signal, a position for the word, and a probability of the word appearing at the position given the speech signal;
using the probabilities to rank the speech signals relative to each other to form ranked speech signals; and
returning search results based on the ranked speech signals. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of searching for speech segments, the method comprising:
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accessing an index containing probabilities of positions for words generated from a plurality of speech segments;
retrieving a set of probabilities for a word from the index;
and returning identifiers for speech segments that contain the word based on the set of probabilities. - View Dependent Claims (18, 19, 20)
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Specification