collaborative-filtering

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Where do I check the results of Mahout's jester example?

After I run: mahout org.apache.mahout.cf.taste.example.jester.JesterRecommenderEvaluatorRunner mahout org.apache.mahout.cf.taste.example.jester.JesterRecommenderEvaluatorRunner[详细]

2023-02-28 03:24 分类：问答
what does it mean by "f: U x I -> S"

what does it mean by \"f: U x I -> S\"? My material says this function predicts rating of a user u for a new item i. But what is \"x\" there? Anyone please explain the symbols for me..[详细]

2023-02-22 02:56 分类：问答
Can SlopeOne Algo be used for this problem?

I need to implement collaborative filtering techniques to gives users similar functionality which Amazon gives when you an individual item that is,\"People who visited this also visited these\". I hav[详细]

2023-02-17 07:26 分类：问答
Basic Pseudocode for using SVD with Movielens/Netflix type data set

I\'m struggling to figure out how exactly to begin using SVD with 开发者_JAVA百科a MovieLens/Netflix type data set for rating predictions. I\'d very much appreciate any simple samples in python/java,[详细]

2023-02-16 09:52 分类：问答
Slope One implementations offers poor recommendations

I\'m attempting to implement a Slope One algorithm via PHP for user-based item recommendation. To do this, I\'m using the OpenSlopeOne library. The problem I\'m having is that the recommendations gene[详细]

2023-02-09 00:35 分类：问答
recommendation system data collection methodology

i am building a recommendation system in my application and i am probably going to use apache mahout, i ve to collect a big 开发者_开发百科dataset, it ll be collected over a period of time...so which[详细]

2023-01-08 10:54 分类：问答
How to prune data set by frequency to conform to paper's description

The MovieLens data set provides a table with columns: userid | movieid | tag | timestamp I have trouble reproducing the way they pruned the MovieLens data set used in:[详细]

2023-01-02 05:32 分类：问答
Converting python collaborative filtering code to use Map Reduce

Using Python, I\'m computing cosine similarity across items. given event data that represents a purchase (user,item), I have a list of all items \'bought\' by my users.[详细]

2022-12-31 07:44 分类：问答
How to optimize an database suggestion engine

I`m making an online engine for item-to-item recommending movies. I have made some researches and I think that the best way to implement that is using pearson correlation and make a table with item1,[详细]

2022-12-26 23:41 分类：问答
collaborative filtering in rails [closed]

As it currently stands, this question is not a good fit for our Q&A format. W开发者_StackOverflowe expect answers to be supported by facts, references,or expertise, but this question will like[详细]

2022-12-22 20:39 分类：问答