Average Co-Inventor Count = 3.00
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Yahoo! Inc. (3 from 2,367 patents)
3 patents:
1. 7590616 - Collaborative-filtering contextual model based on explicit and implicit ratings for recommending items
2. 7584171 - Collaborative-filtering content model for recommending items
3. 7574422 - Collaborative-filtering contextual model optimized for an objective function for recommending items