Method for content presentation

1. A method of personalizing organization of a product set, the method comprising:

establishing a first matrix populated by ratings associated with a first plurality of v viewers in a content distribution system and a second plurality of p products each of which is a content item, the first matrix having dimensions v and p, each entry in the first matrix comprising either an empty entry or a rating indicating viewer interest in a content item;

bi-clustering the first matrix, thereby producing a second matrix, the second matrix comprising a matrix of ratings comprising a grouping of the viewers according to similarity of products chosen by the viewers and a grouping of the products according to similarity of viewers who viewed the products;

associating viewers into groups of viewers based on the viewer grouping in the second matrix;

selecting refinement parameters of products, the refinement parameters comprising a sub-set of a set of metadata parameters associated with the products;

for each group of viewers, ranking the refinement parameters with respect to mutual information between a refinement parameter value and a product choice within each group of viewers;

presenting to an individual viewer a set of the refinement parameters, the refinement parameters ordered within the set by a rank corresponding to the viewer group the individual viewer is associated with; and

interactively performing the following, at least once, in response to the viewer choice of the refinement parameters:

selecting a sub-set of products from the product set, the sub-set of products comprising products with metadata matching the refinement parameters selected by the individual viewer; and

presenting the individual viewer the selected sub-set of products and a set comprising the refinement parameters not including the refinement parameters already selected by the individual viewer.

2. The method according to claim 1 , and wherein at least one refinement parameter comprises a director name.

3. The method according to claim 1 , and wherein at least one refinement parameter comprises an actor name.

4. The method according to claim 1 and wherein at least one refinement parameter comprises a product length.

5. The method according to claim 1 and wherein at least one refinement parameter comprises a price to view a product.

6. The method according to claim 1 and wherein at least one refinement parameter comprises a product language.

7. The method according to claim 1 and wherein at least one refinement parameter comprises a parental rating.

8. The method according to claim 1 and wherein at least one refinement parameter comprises a product genre.

9. The method according to claim 1 and wherein at least one refinement parameter comprises at least one word of a product title.

10. The method according to claim 1 and wherein at least one refinement parameter comprises at least one word of a product synopsis.

11. The method according to claim 1 and wherein the product set comprises at least content listed in a VOD catalog.

12. The method according to claim 1 and wherein the product set comprises at least content listed in a program guide.

13. The method of claim 12 and wherein the product set comprises at least one of:

content listed in a daily program guide; and

content listed in a weekly program guide.

14. The method according to claim 1 and wherein the product set comprises at least one content item recorded on disk (PVR).

15. The method according to claim 1 and wherein the product set comprises at least any superset of:

content listed in a VOD catalog;

content listed in a daily program guide;

content listed in a weekly program guide; and

at least one content item recorded on disk (PVR).

16. The method according to claim 1 and wherein the product set comprises at least a result of a query of at least one of:

content listed in a VOD catalog;

content listed in a daily program guide;

content listed in a weekly program guide; and

content recorded on disk (PVR).

17. The method according to claim 1 and wherein the product set comprises at least a result of a viewer filter of at least one of:

content listed in a VOD catalog;

content listed in a daily program guide;

content listed in a weeldy program guide; and

content recorded on disk (PVR).

18. The method according to claim 1 and wherein the product set comprises at least a result of a combination of a result of a query and/or a result of a viewer filter on any combination of:

content listed in a VOD catalog;

content listed in a daily program guide;

content listed in a weeldy program guide; and

content recorded on disk (PVR).

19. The method according to claim 17 and wherein the viewer filter comprises a language filter.

20. The method according to claim 17 and wherein the viewer filter comprises a parental rating filter.

21. The method according to claim 17 and wherein the viewer filter comprises a filter according to a keyword.

22. The method according to claim 16 and wherein the query comprises a keyword based search query.

23. A system of personalizing organization of a product set, the system comprising:

a first matrix populating unit, operative to populate a first matrix by ratings associated with a first plurality of v viewers in a content distribution system and a second plurality of p products each of which is a content item, the first matrix having dimensions v and p, each entry in the first matrix comprising either an empty entry or a rating indicating viewer interest in a content item;

a bi-clustering unit, operative to bi-cluster the first matrix, thereby producing a second matrix, the second matrix comprising a matrix of ratings comprising a grouping of the viewers according to similarity of products chosen by the viewers and a grouping of the products according to similarity of viewers who viewed the products;

a viewer group associator, operative to associate viewers into groups of viewers based on the viewer grouping in the second matrix;

a refinement parameter selector operative to select refinement parameters of products, the refinement parameters comprising a sub-set of a set of metadata parameters associated with the products;

a ranker, which, for each group of viewers, ranks the refinement parameters with respect to mutual information between a refinement parameter value and a product choice within each group of viewers;

a presenter operative to present to an individual viewer a set of the refinement parameters, the refinement parameters ordered within the set by a rank corresponding to the viewer group the individual viewer is associated with; and

a processor comprising a product sub-set selector and a sub-set presenter;

wherein, the processor interactively, at least once, in response to the viewer choice of the refinement parameters:

the product sub-set selector selects a sub-set of products from the product set, the sub-set of products comprising products with metadata matching the refinement parameters selected by the individual viewer; and

the sub-set presenter presents the individual viewer the selected sub-set of products and a set comprising the refinement parameters not including the refinement parameters already selected by the individual viewer.

24. A system of personalizing organization of a product set, the system comprising:

means for establishing a first matrix populated by ratings associated with a first plurality of v viewers in a content distribution system and a second plurality of p products each of which is a content item, the first matrix having dimensions v and p, each entry in the first matrix comprising either an empty entry or a rating indicating viewer interest in a content item;

means for bi-clustering the first matrix, thereby producing a second matrix, the second matrix comprising a matrix of ratings comprising a grouping of the viewers according to similarity of products chosen by the viewers and a grouping of the products according to similarity of viewers who viewed the products;

means for associating viewers into groups of viewers based on the viewer grouping in the second matrix;

means for selecting refinement parameters of products, the refinement parameters comprising a sub-set of a set of metadata parameters associated with the products;

means for ranking the refinement parameters with respect to mutual information between a refinement parameter value and a product choice within each group of viewers;

means for presenting to an individual viewer a set of the refinement parameters, the refinement parameters ordered within the set by a rank corresponding to the viewer group the individual viewer is associated with; and

means for processing comprising means for product sub-set selection and means for presenting a sub-set;

wherein, the means for processing interactively, at least once, in response to the viewer choice of the refinement parameters:

selects a sub-set of products from the product set, the sub-set of products comprising products with metadata matching the refinement parameters selected by the individual viewer; and

presents the individual viewer the selected sub-set of products and a set comprising the refinement parameters not including the refinement parameters already selected by the individual viewer.