relevance feedback algorithm inspired by quantum detection
TRANSCRIPT
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RELEVANCE FEEDBACK ALGORITHM INSPIRED BY
QUANTUM DETECTION
SUBMITTED BY,
R.S.M.N.PRASAD
14501F0031.
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CONTENTS
• Introduction• System analysis• Modules description• System requirements• System design • Outputs• Conclusion
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INTRODUCTION
• Information Retrieval (IR) is concerned with indexing and retrieving documents including information relevant to a user’s information need.
• Relevance Feedback (RF) is a class of effective algorithms for improving Information Retrieval (IR) and it consists of gathering further data representing the user’s information need and automatically creating a new query.
• A class of RF algorithms inspired by quantum detection to re-weight the query terms and to re-rank the document retrieved by an IR system.
• These algorithms project the query vector on a subspace spanned by the eigenvector which maximizes the distance between the distribution of quantum probability of relevance and the distribution of quantum probability of non-relevance
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SYSTEM ANALYSIS
Existing System:• RF can be positive, negative or both. Positive RF only brings relevant documents into play and negative RF
makes only use of irrelevant documents; any effective RF algorithms includes a “positive” component.
• Although positive feedback is a well established technique by now, negative feedback is still problematic and requires further investigation, yet some proposals have already been made such as grouping irrelevant documents before using them for reducing the query.
Proposed System:• It is designed to compute the new query vector using a linear combination of the original vectors, the
relevant document vectors and the non-relevant document vectors, where the labels of relevance are collected in a training set.
• Detection consists of identifying the information concealed in the data which are transmitted by the source placed on one side, through a channel to the detector placed on the other side.
• The data are only a representation of the “true” information that one side wants to transmit.
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MODULES
• Vector Space Model• Relevance Feedback• Quantum Probability• Quantum Detection
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SYSTEM REQUIREMENTS
H/W System Configuration:
Processor : Pentium –IV
RAM : 1GB
Hard Disk : 80 GB
S/W System Configuration:
Operating System : Windows
Front End : Java
IDE : Netbeans
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SYSTEM DESIGN - USE CASE DIAGRAM
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CLASS DIAGRAM
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SEQUENCE DIAGRAM
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COLLABARATION DIAGRAM
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STATE CHART DIAGRAM
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ACTIVITY DIAGRAM
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COMPONENT DIAGRAM
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DEPLOYMENT DIAGRAM
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SCREEN SHOTS
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THANK YOU