I am doing a research project on Recommender System, where I need data of user-item ratings and user-user trust ratings. Publicly available similar datasets are
- Film trust dataset
- Epinion dataset
Both have user-item ratings but don't have user-user trust ratings; instead they have user-user trust statement. Also they only contain positive trust statement and don't have negative trust statement.
The difference between statement and ratings is, statement can only have value of 1(trusted) or -1(not trusted), but rating will have values in range 0-5 or 0-1.
So is there any prior work on this type dataset and where can I find these type dataset?
Hello Surya Prakash Sahu ,
By user-user trust do you mean user-user similarity value? I mean suppose if user "X" like movie "A" and user "Y" also like movie "A" then their user-user trust value is 1. If this kind of user-user trust value you want you can easily generate it by pearson correlation coefficient formula which ranges value -1 to1
Similarity and trust are two different things. I am looking for trust.
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