Zhaohui Wu

BBookX

2016

We describe BBookX, a web-based tool that uses a human-computing approach to facilitate the creation of open source textbooks. The goal of BBookX is to create a system that can search various Open Educational Resource …

Determining Gains Acquired from Word Embedding Quantitatively Using Discrete Distribution Clustering

2017

Word embeddings have become widelyused in document analysis. While a large number of models for mapping words to vector spaces have been developed, it remains undetermined how much net gain can be achieved over traditional …

On Deep Learning for Trust-Aware Recommendations in Social Networks

2016 · IEEE Transactions on Neural Networks and Learning Systems

With the emergence of online social networks, the social network-based recommendation approach is popularly used. The major benefit of this approach is the ability of dealing with the problems with cold-start users. In addition to …

Recovering Concept Prerequisite Relations from University Course Dependencies

2017 · Proceedings of the AAAI Conference on Artificial Intelligence

Prerequisite relations among concepts play an important role in many educational applications such as intelligent tutoring system and curriculum planning. With the increasing amount of educational data available, automatic discovery of concept prerequisite relations has …