Recommended Systems using Collaborative Filtering and Classification Algorithms in Data Mining Dhwani Shah 2008A7PS097G Mentor – Mrs. Shubhangi Gawali BITSC331 2011 1 BITS – Pilani‚ K.K Birla Goa INDEX S. No. 1. 2. 3. 4. 5. 6. 7. 8. 9. Topic Introduction to Recommended Systems Problem Statement Apriori Algorithm Pseudo Code Apriori algorithm Example Classification Classification Techniques k-NN algorithm Determine a good value of k References Page No. 3 5 5 7 14 16 19 24 26 2
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2003‚ (7). 2. dA (x‚y) = Euclidean distance measuring: dE(x‚y) = i 1 KNN Algorithm: The algorithm on how to compute the K-nearest neighbors is as follows: 1. Determine the parameter K = number of nearest neighbors beforehand. 2. Calculate the distance between the query-instance and all the training samples. It can use any distance algorithm. 3. Sort the distances for all the training samples and determine the nearest neighbor based on the K-th minimum distance. N x12 y12 AUTHORS First Author –
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(marko.robnik@fri.uni-lj.si) Igor Kononenko (igor.kononenko@fri.uni-lj.si) University of Ljubljana‚ Faculty of Computer and Information Science‚ Trˇ aˇka 25‚ z s 1001 Ljubljana‚ Slovenia tel.: + 386 1 4768386 fax: + 386 1 4264647 Abstract. Relief algorithms are general and successful attribute estimators. They are able to detect conditional dependencies between attributes and provide a unified view on the attribute estimation in regression and classification. In addition‚ their quality estimates have
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I. Introduction Opinions are important to all humans as they influence ones behaviour. In today’s competitive world‚ businesses and organizations always want to find consumer or public opinions about their products and services. Consumers also want to know the opinions of existing users of a product before purchasing it. In the past‚ when an individual needed opinions‚ he/she asked friends and family. When an organization or a business needed public or consumer opinions‚ it conducted surveys‚ opinion
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1. INTRODUCTION Obtaining a high-resolution (HR) image from single or multiple low-resolution (LR) images‚ known as “super-resolution” has been a problem. High resolution means high pixel density‚ also referred to as high-definition (HD). An HR image brings out details that would be blocked out in an LR image. More pixels in the same area imply a higher sampling frequency thereby offering more details. Due to the tremendous progress in sensor and chip manufacturing techniques‚ we can now obtain
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Algorithms Homework – Fall 2000 8.1-1 Using Figure 8.1 as a model‚ illustrate the operation of PARTITION on the array A = 13 19 9 5 12 8 7 4 11 2 6 21 i j j 6 19 9 5 12 8 7 4 11 2 13 21 i i j j 6 2 9 5 12 8 7 4 11 19 13 21
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“Neighbors” is a moral based story from 1971 written by Raymond Carver. Raymond Carver’s writing style can be described as “less is more”. That means that only the important facts are in his stories and poems. He sees no need to add extra fluff to his works. Raymond Carver is famous for his thrifty details and careful stories about working-class life‚ that often is resemble with his own. In Raymond Carver’s novels‚ things are not as they appear to be or rather sometimes things are more than they
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In your own words explain the algorithm/intuition behind it. What was your worst performing model? Why do you think it did not perform well? Best performing model My best performing model was the using the multilayer perception classifier with a learning rate of 0.2 . I filtered down
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INFORMATION TECHNOLOGY ASSIGNMENT ON ALGORITHM Done by Densil Hamilton INTRODUCTION This Assignment was done to show the methods of algorithm. It outlines the meaning of algorithm and steps to be carried out to complete a give problem. Examples were also shown for the methods of representing algorithm. What is an Algorithm? An algorithm consists of a set of explicit and unambiguous finite steps which‚ when carried out for a given set of initial conditions‚ produce the corresponding
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Algorithm is a list of instructions for carrying out some process step by step Flowchart is a diagram representing the logical sequence in which a combination of steps or operations is to be performed Types of Flowcharts Program Flowchart – describes graphically in detail the logical operations and steps within a program and sequence in which these steps are to be executed for the transformation of data to produce the needed output System Flowchart – is a graphic representation of the
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