Lexing Xie

Low-Rank Linear Cold-Start Recommendation from Social Data

2017 · Proceedings of the AAAI Conference on Artificial Intelligence

The cold-start problem involves recommendation of content to new users of a system, for whom there is no historical preference information available. This proves a challenge for collaborative filtering algorithms that inherently rely on such …

Action Schema Networks: Generalised Policies With Deep Learning

2018 · Proceedings of the AAAI Conference on Artificial Intelligence

In this paper, we introduce the Action Schema Network (ASNet): a neural network architecture for learning generalised policies for probabilistic planning problems. By mimicking the relational structure of planning problems, ASNets are able to adopt …

How do ideas flow around SIGMM conferences?

2018 · ACM SIGMultimedia Records

The ACM Multimedia conference just celebrated its quarter century in October 2017. This is a great opportunity to reflect on the intellectual influence of the conference, and the SIGMM community in general. The progress on …

Probabilistic Knowledge Graph Construction: Compositional and Incremental Approaches

2016 · arXiv (Cornell University)

Knowledge graph construction consists of two tasks: extracting information from external resources (knowledge population) and inferring missing information through a statistical analysis on the extracted information (knowledge completion). In many cases, insufficient external resources in …

AutoRec

2015

This paper proposes AutoRec, a novel autoencoder framework for collaborative filtering (CF). Empirically, AutoRec's compact and efficiently trainable model outperforms state-of-the-art CF techniques (biased matrix factorization, RBM-CF and LLORMA) on the Movielens and Netflix datasets.