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RELATIONAL COLLABORATIVE TOPIC REGRESSION FOR RECOMMENDER SYSTEMS ABSTRACT: Due to its successful application in recommender systems, collaborative filtering (CF) has become a hot research topic in data mining and information retrieval. In traditional CF methods, only the feedback matrix, which contains either explicit feedback (also called ratings) or implicit feedback on the items given by users, is used for training and prediction. Typically, the feedback matrix is sparse, which means that most users interact with few items. Due to this sparsity problem, traditional CF with only feedback information will suffer from unsatisfactory performance. Recently, many researchers have proposed to utilize auxiliary information, such as item content (attributes), to alleviate the data sparsity problem in CF. Collaborative topic regression (CTR) is one of these methods which has achieved promising performance by successfully integrating both feedback information and item content information. In many real applications, besides the feedback and item content information, there may exist relations (also known as networks) among the items which can be helpful for recommendation. In this paper, we develop a novel hierarchical Bayesian model called Relational Collaborative Topic Regression (RCTR), which extends CTR by seamlessly integrating the user-item feedback information, item content information, and network structure among items into the same model. Experiments on real-world datasets show that our model can achieve better prediction accuracy than the state-of-the-art methods with lower empirical training time. Moreover, RCTR can learn good interpretable latent structures which are useful for recommendation. EXISTING SYSTEM: Previous work on string transformation can be categorized into two groups. Some work mainly considered efficient generation of strings. Other work tried to learn the model with different approaches. However, efficiency is not an important factor taken into consideration in these methods. The existing work is not focus on enhancement of both accuracy and efficiency of string transformation. Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com Problems in existing system: 1. Not getting accurate results. 2. Time taking more to search. 3. There is no key word searching in existing system. PROPOSED SYSTEM: String transformation has many applications in data mining, natural language processing, information retrieval, and bioinformatics. String transformation has been studied in different specific tasks such as database record matching, spelling error correction, query reformulation and synonym mining. The major difference between our work and the existing work is that we focus on enhancement of both accuracy and efficiency of string transformation. Advantages in proposed system: 1. Giving accurate and efficient results. 2. It takes less time to search. 3. Here we are finding key word searching, error checking, spelling checking, we are finding synonyms and antonyms. So it is easy to check string results. System Configuration:Hardware Configuration: Processor Speed - Pentium –IV 1.1 Ghz RAM - 256 MB(min) Hard Disk - 20 GB Key Board - Standard Windows Keyboard Mouse Monitor - Two or Three Button Mouse - SVGA Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com Software Configuration:- Operating System : Windows XP Programming Language : JAVA Java Version Back end : JDK 1.6 & above. :MY SQL Further Details Contact: A Vinay 9030333433, 08772261612 Email: [email protected] | www.takeoffprojects.com