activity
20082023
most citedDetect overlapping and hierarchical community structure in networks

733 citations · 3.1k across the 122 of their papers we have counts for

collaborators
Showing 2018Show all

6 papers · 1 filter

cs.CL2018★ 2 cited

Exploiting Contextual Information via Dynamic Memory Network for Event Detection

Shaobo Liu, Rui Cheng, Xiaoming Yu +1

The task of event detection involves identifying and categorizing event triggers. Contextual information has been shown effective on the task. However, existing methods which utili…

cs.LG2018★ 5 cited

Relative Importance Sampling for off-Policy Actor-Critic in Deep Reinforcement Learning

Mahammad Humayoo, Gengzhong Zheng, Xiaoqing Dong +7

Off-policy learning exhibits greater instability when compared to on-policy learning in reinforcement learning (RL). The difference in probability distribution between the target p…

cs.IR2018

Beyond Precision: A Study on Recall of Initial Retrieval with Neural Representations

Yan Xiao, Jiafeng Guo, Yixing Fan +3

Vocabulary mismatch is a central problem in information retrieval (IR), i.e., the relevant documents may not contain the same (symbolic) terms of the query. Recently, neural repres…

cs.CL2018★ 1 cited

A Tree Search Algorithm for Sequence Labeling

Yadi Lao, Jun Xu, Yanyan Lan +3

In this paper we propose a novel reinforcement learning based model for sequence tagging, referred to as MM-Tag. Inspired by the success and methodology of the AlphaGo Zero, MM-Tag…

cs.IR2018★ 112 cited

Modeling Diverse Relevance Patterns in Ad-hoc Retrieval

Yixing Fan, Jiafeng Guo, Yanyan Lan +3

Assessing relevance between a query and a document is challenging in ad-hoc retrieval due to its diverse patterns, i.e., a document could be relevant to a query as a whole or parti…

cs.LG2018

MQGrad: Reinforcement Learning of Gradient Quantization in Parameter Server

Guoxin Cui, Jun Xu, Wei Zeng +3

One of the most significant bottleneck in training large scale machine learning models on parameter server (PS) is the communication overhead, because it needs to frequently exchan…