Description Usage Arguments Details Value References Examples
View source: R/Similarity_Pearson.R
Finding the similarity with Pearson's method.
1 | Similarity_Pearson(ratings, active_user, near_user)
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ratings |
A rating matrix whose rows are items and columns are users. |
active_user |
The id of an active user as an integer greater than zero (for example active_user<-6). |
near_user |
A vector of neighbor users that in the Pearson method are all users. |
Obtaining the Pearson similarity through the cor command from state package does not produce the desired response.
sim_ac |
Pearson's similarity between the active user and all users. |
Karabadji, N.E.I., Beldjoudi, S., Seridi, H., Aridhi, S. and Dhifli, W. (2018). Improving memory-based user collaborative filtering with evolutionary multi-objective optimization. Expert Systems with Applications, vol. 98, pp.153-165.
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