Weighted Indexing technique Given the following Weighted term Document matrix, c
ID: 653705 • Letter: W
Question
Weighted Indexing technique
Given the following Weighted term Document matrix, calculate the new document vectors using Normalized TF (using maximum value per row to normalize), Inverse Document Frequency, and Signal. Show how you came up with the weights for the three different algorithms for each term (T1-T6). You dont have to show how you calculate each entry in the table. Treat the table as the complete database (N=5 documents) and a zero term frequency means that word does not occur in that document.
T1
T2
T3
T4
T5
T6
D1
4
2
2
1
6
0
D2
3
2
1
12
0
0
D3
0
2
0
4
2
0
D4
2
2
0
1
1
0
D5
4
2
0
8
4
2
T1
T2
T3
T4
T5
T6
D1
4
2
2
1
6
0
D2
3
2
1
12
0
0
D3
0
2
0
4
2
0
D4
2
2
0
1
1
0
D5
4
2
0
8
4
2
Explanation / Answer
INVERSE DOCUMENT FREQUENCY
T1 T2 T3 T4 T5 T6 D1 0.388 0.794 0.794 -0.380 -0.474 0.000 D2 0.291 0.794 0.397 -4.56 0.000 0.000 D3 0.000 0.794 0.000 -1.52 -0.158 0.000 D4 0.194 0.794 0.000 -0.380 -0.079 0.000 D5 0.388 0.794 0.000 -3.04 -0.316 0.794Related Questions
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