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people:bo_xu:sorec [2010/12/01 16:09]
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people:bo_xu:sorec [2011/01/06 19:51] (current)
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 === Model-based Methods ===  === Model-based Methods ===
     - **Learning collaborative information filters** (ICML, 1998)[[http://www.stanford.edu/~koutrika/Readings/res/Default/billsus98learning.pdf | (pdf)]]      - **Learning collaborative information filters** (ICML, 1998)[[http://www.stanford.edu/~koutrika/Readings/res/Default/billsus98learning.pdf | (pdf)]]
-        -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality.+        -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality. (**convert the training data,the sparse matrix of user ratings to Boolean feature vetors, resulting in a matrix filled with zeros and ones)**.
        - **Explore :**         - **Explore :**
    - **Empirical analysis of predictive algorithms for collaborative filtering** (UAI, 1998) [[ftp://ftp.research.microsoft.com/pub../TR/TR-98-12.pdf|pdf]]     - **Empirical analysis of predictive algorithms for collaborative filtering** (UAI, 1998) [[ftp://ftp.research.microsoft.com/pub../TR/TR-98-12.pdf|pdf]]
-        -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality.+        -    **Abstract:** Cluster Models and Bayes Network model is embedded. Train the parameter by training data and predict the unknown ratings. <code> Naive Bayes: p(C = c, v_1, v_2, ... v_n)= Pr(C = c)\prod_{i=1} ^n (v_i|C=c) </code>
        - **Explore :**         - **Explore :**
    - **Using Probabilistic Relational Models for Collaborative Filtering** (WebKDD 1999)[[http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.40.4507&rep=rep1&type=pdf|(pdf)]]     - **Using Probabilistic Relational Models for Collaborative Filtering** (WebKDD 1999)[[http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.40.4507&rep=rep1&type=pdf|(pdf)]]
-        -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality.+        -    **Abstract:** Apply probabilistic relational models (PRM),which is similar to [[http://en.wikipedia.org/wiki/Entity-relationship_model| Entity relational model]], to the system.
        - **Explore :**         - **Explore :**
    - **Eigentaste: A constant Time Collaborative Filtering Algorithm** (Information Retrival J, 2001)[[http://ml.stat.purdue.edu/vdb/joke/Papers/eigentaste.pdf|(pdf)]]     - **Eigentaste: A constant Time Collaborative Filtering Algorithm** (Information Retrival J, 2001)[[http://ml.stat.purdue.edu/vdb/joke/Papers/eigentaste.pdf|(pdf)]]
-        -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality+        -    **Abstract:** Select gauge set (all valid users rated all items in the gauge set) and apply PCA for dimensionality reduction. Then cluster users. Classify new users to the corresponding cluster and recommend items.  
-        - **Explore :** +        - **Explore :** 1. Cluster method not fit to multi-model. 2. gauge set may hard to select 3. when gauge set is small, the recommend is not accurate.
    - **Collaborative Filtering via Gaussian Probabilistic Latent Semantic Analysis** (SIGIR, 2003)[[http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.7.2476&rep=rep1&type=pdf|(pdf)]]     - **Collaborative Filtering via Gaussian Probabilistic Latent Semantic Analysis** (SIGIR, 2003)[[http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.7.2476&rep=rep1&type=pdf|(pdf)]]
        -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality.         -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality.
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        - **Explore :**         - **Explore :**
    - **Probabilistic Matrix Factorization (PMF)** (NIPS, 2008)[[http://web.mit.edu/~rsalakhu/www/papers/nips07_pmf.pdf|(pdf)]]------ [[http://www.wikicoursenote.com/wiki/Probabilistic_Matrix_Factorization|Introduction]]     - **Probabilistic Matrix Factorization (PMF)** (NIPS, 2008)[[http://web.mit.edu/~rsalakhu/www/papers/nips07_pmf.pdf|(pdf)]]------ [[http://www.wikicoursenote.com/wiki/Probabilistic_Matrix_Factorization|Introduction]]
-        -    **Abstract:** Model collaborative filtering task as the classification or regression problem in machine learning and Apply SVD to reduce the dimensionality. 
-        - **Explore :**  
       - **Abstract:** PMF apply a probabilistic approach using Gaussian assumptions on the knonw data and the factor matrics to factor the matrix and pridicting the missing values.Experimental resuts show that PMF perform quite well.        - **Abstract:** PMF apply a probabilistic approach using Gaussian assumptions on the knonw data and the factor matrics to factor the matrix and pridicting the missing values.Experimental resuts show that PMF perform quite well.
       - **Superiority:** Scales linearly, performs well on the large, spase and imbalanced dataset.        - **Superiority:** Scales linearly, performs well on the large, spase and imbalanced dataset.
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===== works ===== ===== works =====
 +
 +list of some papers:
 +
 +1. Relational learning via collective matrix Factorization : Ajit P.Singh
 +2. Locality Preserving Nonnegative matrix factorization dengcai
 +3. relation regularized matrix factorization, wu0jun Li
 +4. Modeling user rating Profiles for collaborative filtering
 +5. Toward the next generation of recommender systems: a survey of the state-of-the-art and possible extensions
 +6. application of dimensionality reduction in recommender system-a case study
 +7. collaborative ifltering via guassian probabilistic latent semantic analysis
 +8 item based collaborative filtering recommendation algorithms
 +9. maximum likelihood estimation of intrinsic dimension
 +10 Optimization algorithms in machine learning --- stephen wright
 +11. global analytic solution for variational bayesian matrix factorization
 +12. variational bayesian approach to movie rating prediction
 +13. implicit regularization in variational bayesian matrix factorization
 +14. sparse inverse covariance estimation with the graphical lasso
 +15. matrix factorization techniques for recommender systemns
 +16probabilistic sparse matrix factorization
 +17. learning with local and global consistency
 +18
 
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