METHOD AND DEVICE FOR INFORMATION RETRIEVAL
First Claim
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1. A method of information retrieval, comprising:
- determining, using a microprocessor, Q generative models (λ
) in accordance with Probabilistic Latent Semantic Indexing (PLSI), said Q generative models being determined in an offline training;
receiving a user query (q);
choosing, using said microprocessor, N generative models out of the Q generative models, with N<
Q;
determining, using said microprocessor, a content item (d) based on said query and a combination of the N generative models.
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Abstract
A method of information retrieval, comprising: determining, using a microprocessor, Q generative models (λ) in accordance with Probabilistic Latent Semantic Indexing (PLSI), said Q generative models being determined in an offline training; receiving a user query (q); choosing, using said microprocessor, N generative models out of the Q generative models, with N≦Q; determining, using said microprocessor, a content item (d) based on said query and a combination of the N generative models.
1 Citation
17 Claims
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1. A method of information retrieval, comprising:
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determining, using a microprocessor, Q generative models (λ
) in accordance with Probabilistic Latent Semantic Indexing (PLSI), said Q generative models being determined in an offline training;receiving a user query (q); choosing, using said microprocessor, N generative models out of the Q generative models, with N<
Q;determining, using said microprocessor, a content item (d) based on said query and a combination of the N generative models. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device comprising:
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a microprocessor adapted to calculate Q generative models (λ
) in accordance with Probabilistic Latent Semantic Indexing (PLSI), said Q generative models being determined in an offline training;a storage adapted to store said Q generative models; an input interface adapted to receive a user query (q); a selection unit adapted to select N generative models out of the Q generative models, with N<
Q;wherein said microprocessor is further adapted to determine a content item (d) based on said query and a combination of the N generative models. - View Dependent Claims (14, 15, 16)
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17. A television equipment comprising:
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a data processor adapted to calculate Q generative models (λ
) in accordance with Probabilistic Latent Semantic Indexing (PLSI), said Q generative models being determined in an offline training, wherein a training material for said offline training comprises EPG data;a storage adapted to store said Q generative models; an input interface adapted to receive a user query (q), the user query being related to television program information; a selection unit adapted to select N generative models out of the Q generative models, with N<
Q;wherein said data processor is further adapted to determine a content item (d) based on said query and a combination of the N generative models, said content item being related to a television program.
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Specification