First OYSTER Run

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School

University of Arkansas, Little Rock *

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Course

5345

Subject

Computer Science

Date

Dec 6, 2023

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docx

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Uploaded by JusticeGalaxy2907

Your Name Page 1 of 1 Lab Exercise Install OYSTER, Run MergePurge, and Calculate ER Measures Do the following: 1. Download and install OYSTER 4.3.0 and the Demo files from the Resources folder on Blackboard onto your personal computer. 2. Be sure you have Java runtime environment (jre) installed on your machine. 3. Test your install by running the MergePurge Demo using the input file of 6 references. Check if you obtained the same results as those shown by the attached screen shot of the “MergePurgeIndex.link” file in the Output folder of the MergePurge folder. 4. Replace the MergePurgeTest.txt file in the Input folder of the MergePurge Demo with the file “Test15.txt” attached to his assignment. This file has 15 references in the same format at the original “MergePurgeTest.txt” file. 5. Re-Run the MergePurge Demo using the Test15.txt file as input. To make it simple, just rename the original MergePurgeTest.txt file to another name like “MergePurgeTestOld.txt” and then rename the attached “Test15.txt” file to “MergePurgeTest.txt”. Do not make any changes to the MergePurge scripts. 6. After re-running the MergePurge Demo with the new 15 record file, open the “MergePurgeIndex.link” file in the Output folder and answer the following questions. a. How many clusters were formed from the new input file? b. How many of the clusters contain only one reference? c. How many of the clusters contain exactly two references? d. How many of the clusters contain exactly three references? e. How many of the clusters contain exactly four references? 7. The second file attached to this assignment is named “Test15Truth.txt”. This file has the same references as those in the file “Text15.txt” but this file shows the correct (true) linking of the 15 references. Using this truth file, answer the following questions a. What is the Precision of the OYSTER linking? b. What is the Recall of the OYSTER linking? c. What is the F-Measure of the OYSTER linking?

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