Merge pull request wzhe06#6 from WuLC/master

添加FFM原始论文

Author: birdviewhome

Factorization Machines/Field-aware Factorization Machines for CTR Prediction.pdf

@@ -115,6 +115,7 @@ Sigir 2018的预估CVR的一篇短文，阿里妈妈发表。利用multi-task le
 ### Factorization Machines
 FM因子分解机模型的相关paper，在计算广告领域非常实用的模型
 * [Factorization Machines Rendle2010.pdf](https://github.com/wzhe06/Ad-papers/blob/master/Factorization%20Machines/Factorization%20Machines%20Rendle2010.pdf) <br />
+* [Field-aware Factorization Machines for CTR Prediction.pdf](https://github.com/wzhe06/Ad-papers/blob/master/Factorization%20Machines/Field-aware%20Factorization%20Machines%20for%20CTR%20Prediction.pdf) <br />
 * [Fast Context-aware Recommendations with Factorization Machines.pdf](https://github.com/wzhe06/Ad-papers/blob/master/Factorization%20Machines/Fast%20Context-aware%20Recommendations%20with%20Factorization%20Machines.pdf) <br />
 * [fastFM- A Library for Factorization Machines.pdf](https://github.com/wzhe06/Ad-papers/blob/master/Factorization%20Machines/fastFM-%20A%20Library%20for%20Factorization%20Machines.pdf) <br />
 * [FM PPT by CMU.pdf](https://github.com/wzhe06/Ad-papers/blob/master/Factorization%20Machines/FM%20PPT%20by%20CMU.pdf) <br />