### Project 4 Words for Music
#### — Association mining for music and text
### Project evaluation
+ On 11/16, we will provide you with the **music features** of 100 songs in the same format as the training data.
+ You will also be provided with a voculary ranking sheet for these 100 songs.
+ The vocabulary is the same as the training data.
| |song1|song 2| … |song 100|
|—|—|—|—|—|
|word 1| 5 |321|…|112|
|word 2| 2304|986|…|3|
|… | | … |…|…|
+ You will have 30 minuets to submit rankings of lyrics words with 1 being most likely and 5000 being least likely.
+ Let the dictionary be $$$\mathbf{D}=[d_1, …, d_K]$$$, where $$$K=5000$$$.
+ For a song with words $$$w_1, …, w_m$$$ and $$$w_i \in \mathbf{D}$$$, let your predictive ranks be $$$r_1, …, r_K$$$.
+ We will compute predictive rank sum as follows:
$$ \frac{1}{m} \sum\_{i=1}^m r_{w_i}.$$
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