Search Results for author: Chun Wang

Found 9 papers, 1 papers with code

Distributionally Robust Prescriptive Analytics with Wasserstein Distance

no code implementations10 Jun 2021 Tianyu Wang, Ningyuan Chen, Chun Wang

In prescriptive analytics, the decision-maker observes historical samples of $(X, Y)$, where $Y$ is the uncertain problem parameter and $X$ is the concurrent covariate, without knowing the joint distribution.

Portfolio Optimization

A GRU-based Mixture Density Network for Data-Driven Dynamic Stochastic Programming

no code implementations26 Jun 2020 Xiaoming Li, Chun Wang, Xiao Huang, Yimin Nie

To fill the gap, in this work, we propose an innovative data-driven dynamic stochastic programming (DD-DSP) framework for time-series decision-making problem, which involves three components: GRU, Gaussian Mixture Model (GMM) and SP.

Decision Making Time Series

Learning and Optimization with Seasonal Patterns

no code implementations16 May 2020 Ningyuan Chen, Chun Wang, Longlin Wang

We show that our learning policy incurs a regret upper bound $\tilde{O}(\sqrt{T\sum_{k=1}^K T_k})$ where $T_k$ is the period of arm $k$.

Investigating Capsule Network and Semantic Feature on Hyperplanes for Text Classification

no code implementations IJCNLP 2019 Chunning Du, Haifeng Sun, Jingyu Wang, Qi Qi, Jianxin Liao, Chun Wang, Bing Ma

It has been demonstrated that multiple senses of a word actually reside in linear superposition within the word embedding so that specific senses can be extracted from the original word embedding.

General Classification Text Classification

Towards Monetary Incentives in Social Q&A Services

no code implementations3 Mar 2017 Steve T. K. Jan, Chun Wang, Qing Zhang, Gang Wang

Community-based question answering (CQA) services are facing key challenges to motivate domain experts to provide timely answers.

Question Answering

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