We present our solution to the job recommendation task for RecSys Challenge 2016. The main contribution of our work is to combine temporal learning with sequence modeling to capture complex user-item activity patterns to improve job recommendations. First, we propose a time-based ranking model applied to historical observations and a hybrid matrix factorization over time re-weighted interactions. Second, we exploit sequence properties in user-items activities and develop a RNN-based recommendation model. Our solution achieved 5th place in the challenge among more than 100 participants. Notably, the strong performance of our RNN approach shows a promising new direction in employing sequence modeling for recommendation systems.
@article{arxiv.1608.03333,
title = {Temporal Learning and Sequence Modeling for a Job Recommender System},
author = {Kuan Liu and Xing Shi and Anoop Kumar and Linhong Zhu and Prem Natarajan},
journal= {arXiv preprint arXiv:1608.03333},
year = {2016}
}
Comments
a shorter version in proceedings of RecSys Challenge 2016