Search Results for author: Qi Huang

Found 13 papers, 5 papers with code

Shapelet-based Model-agnostic Counterfactual Local Explanations for Time Series Classification

no code implementations2 Feb 2024 Qi Huang, Wei Chen, Thomas Bäck, Niki van Stein

In this work, we propose a model-agnostic instance-based post-hoc explainability method for time series classification.

Classification counterfactual +2

Multi-surrogate Assisted Efficient Global Optimization for Discrete Problems

no code implementations13 Dec 2022 Qi Huang, Roy de Winter, Bas van Stein, Thomas Bäck, Anna V. Kononova

Decades of progress in simulation-based surrogate-assisted optimization and unprecedented growth in computational power have enabled researchers and practitioners to optimize previously intractable complex engineering problems.

Management

Weakly-supervised Generative Adversarial Networks for medical image classification

no code implementations29 Nov 2021 Jiawei Mao, Xuesong Yin, Yuanqi Chang, Qi Huang

First, we combine with MixMatch to generate pseudo labels for the fake images and unlabeled images to do the classification.

Contrastive Learning Image Classification +2

KAISA: An Adaptive Second-Order Optimizer Framework for Deep Neural Networks

3 code implementations4 Jul 2021 J. Gregory Pauloski, Qi Huang, Lei Huang, Shivaram Venkataraman, Kyle Chard, Ian Foster, Zhao Zhang

Kronecker-factored Approximate Curvature (K-FAC) has recently been shown to converge faster in deep neural network (DNN) training than stochastic gradient descent (SGD); however, K-FAC's larger memory footprint hinders its applicability to large models.

Studies of form factors and branching ratios for $D\rightarrow S,Al\bar{ν_{l}}$ with light-cone sum rules

no code implementations24 Feb 2021 Qi Huang, Yan-Jun Sun, Di Gao, Guo-Hua Zhao, Bin Wang, Wei Hong

We systematically study the semileptonic decay process of $ D\rightarrow S, A l\bar{\nu_{l}}(l=e,\mu)$ by light-cone sum rules (LCSR) with chiral currents, calculate the form factors containing only the contribution of the leading twist light-cone distribution amplitudes (LCDAs).

High Energy Physics - Phenomenology

Systematic Generalization on gSCAN with Language Conditioned Embedding

2 code implementations Asian Chapter of the Association for Computational Linguistics 2020 Tong Gao, Qi Huang, Raymond J. Mooney

Systematic Generalization refers to a learning algorithm's ability to extrapolate learned behavior to unseen situations that are distinct but semantically similar to its training data.

Systematic Generalization

Model-Free Voltage Regulation of Unbalanced Distribution Network Based on Surrogate Model and Deep Reinforcement Learning

no code implementations24 Jun 2020 Di Cao, Junbo Zhao, Weihao Hu, Fei Ding, Qi Huang, Zhe Chen, Frede Blaabjerg

Accurate knowledge of the distribution system topology and parameters is required to achieve good voltage controls, but this is difficult to obtain in practice.

Decision Making

Heterogeneous Graph Attention Networks for Early Detection of Rumors on Twitter

1 code implementation10 Jun 2020 Qi Huang, Junshuai Yu, Jia Wu, Bin Wang

A meta-path based heterogeneous graph attention network framework is proposed to capture the global semantic relations of text contents, together with the global structure information of source tweet propagations for rumor detection.

Graph Attention

Distributed Voltage Regulation of Active Distribution System Based on Enhanced Multi-agent Deep Reinforcement Learning

no code implementations31 May 2020 Di Cao, Junbo Zhao, Weihao Hu, Fei Ding, Qi Huang, Zhe Chen

This paper proposes a data-driven distributed voltage control approach based on the spectrum clustering and the enhanced multi-agent deep reinforcement learning (MADRL) algorithm.

Clustering

AliMe KBQA: Question Answering over Structured Knowledge for E-commerce Customer Service

no code implementations12 Dec 2019 Feng-Lin Li, Weijia Chen, Qi Huang, Yikun Guo

With the rise of knowledge graph (KG), question answering over knowledge base (KBQA) has attracted increasing attention in recent years.

Management Marketing +1

Analysis of Bag-of-n-grams Representation's Properties Based on Textual Reconstruction

1 code implementation18 Sep 2018 Qi Huang, Zhanghao Chen, Zijie Lu, Yuan Ye

We then run prediction tasks (sen- tence length, word content, phrase content and word order) using the obtained representation to look into the specific type of information captured in the representation.

Sentence

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