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ansuya
Posts: 8
Posted 03:49 Jul 24, 2009 |

 I have tried to solve this exercise.I hope that I have done it correctly.

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Last edited by ansuya at 04:09 Jul 24, 2009.
cysun
Posts: 2935
Posted 13:43 Jul 26, 2009 |
ansuya wrote:

 I have tried to solve this exercise.I hope that I have done it correctly.

Part (a) is incorrect. Part (b) is correct.

HelloWorld
Posts: 88
Posted 14:01 Jul 26, 2009 |

I did it exactly the same and got the same answer.. but I think the recommended page for (b) should only be P7 because the problem states:

(b) Use the closest neighbor method to recommend a page to the user who made T3.

so, I'm thinking that user has reached P6, and now what's the recommendation.. which is P7

let me know..

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cysun
Posts: 2935
Posted 14:05 Jul 26, 2009 |
cysun wrote:
ansuya wrote:

 I have tried to solve this exercise.I hope that I have done it correctly.

Part (a) is incorrect. Part (b) is correct.

Sorry I was wrong. Ansuya's solutions for both parts are correct.

p0941
Posts: 95
Posted 13:30 Jul 27, 2009 |
ansuya wrote:

 I have tried to solve this exercise.I hope that I have done it correctly.

 

This might be another way to solve Part B.

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cysun
Posts: 2935
Posted 14:02 Jul 27, 2009 |
p0941 wrote:
ansuya wrote:

 I have tried to solve this exercise.I hope that I have done it correctly.

 

This might be another way to solve Part B.

That's incorrect. What you did was basically calculating half a Jaccard coefficient (i.e. A intercept B), but you missed the other half (i.e. A union B).