Search Results for author: Qi Zeng

Found 24 papers, 14 papers with code

Efficient Reward Poisoning Attacks on Online Deep Reinforcement Learning

1 code implementation30 May 2022 Yinglun Xu, Qi Zeng, Gagandeep Singh

Our attacks leverage this insight to construct a corrupted environment for misleading the agent towards learning low-performing policies with a limited attack budget.

Data Poisoning reinforcement-learning +1

Competitive Physics Informed Networks

1 code implementation23 Apr 2022 Qi Zeng, Yash Kothari, Spencer H. Bryngelson, Florian Schäfer

Neural networks can be trained to solve partial differential equations (PDEs) by using the PDE residual as the loss function.

Sketching as a Tool for Understanding and Accelerating Self-attention for Long Sequences

1 code implementation NAACL 2022 Yifan Chen, Qi Zeng, Dilek Hakkani-Tur, Di Jin, Heng Ji, Yun Yang

Transformer-based models are not efficient in processing long sequences due to the quadratic space and time complexity of the self-attention modules.

Multifrequency 3D Elasticity Reconstruction withStructured Sparsity and ADMM

no code implementations23 Nov 2021 Shahed Mohammed, Mohammad Honarvar, Qi Zeng, Hoda Hashemi, Robert Rohling, Piotr Kozlowski, Septimiu Salcudean

We evaluate our new method in multiple in silico and phantom experiments, with comparisons with existing methods, and we show improvements in contrast to noise and signal to noise ratios.

Skyformer: Remodel Self-Attention with Gaussian Kernel and Nyström Method

1 code implementation NeurIPS 2021 Yifan Chen, Qi Zeng, Heng Ji, Yun Yang

Transformers are expensive to train due to the quadratic time and space complexity in the self-attention mechanism.

A Web Scale Entity Extraction System

no code implementations Findings (EMNLP) 2021 Xuanting Cai, Quanbin Ma, Pan Li, Jianyu Liu, Qi Zeng, Zhengkan Yang, Pushkar Tripathi

Understanding the semantic meaning of content on the web through the lens of entities and concepts has many practical advantages.

Skyformer: Remodel Self-Attention with Gaussian Kernel and Nystr\"om Method

1 code implementation NeurIPS 2021 Yifan Chen, Qi Zeng, Heng Ji, Yun Yang

Transformers are expensive to train due to the quadratic time and space complexity in the self-attention mechanism.

Identify Influential Spreaders in Asymmetrically Interacting Multiplex Networks

no code implementations5 Jan 2021 Qi Zeng, Ying Liu, Liming Pan, Ming Tang

Our work provides insights on the importance of nodes in the multiplex network and gives a feasible framework to investigate influential spreaders in the asymmetrically coevolving dynamics.

Physics and Society

ReviewRobot: Explainable Paper Review Generation based on Knowledge Synthesis

1 code implementation INLG (ACL) 2020 Qingyun Wang, Qi Zeng, Lifu Huang, Kevin Knight, Heng Ji, Nazneen Fatema Rajani

To assist human review process, we build a novel ReviewRobot to automatically assign a review score and write comments for multiple categories such as novelty and meaningful comparison.

Review Generation

Cross-media Structured Common Space for Multimedia Event Extraction

no code implementations ACL 2020 Manling Li, Alireza Zareian, Qi Zeng, Spencer Whitehead, Di Lu, Heng Ji, Shih-Fu Chang

We introduce a new task, MultiMedia Event Extraction (M2E2), which aims to extract events and their arguments from multimedia documents.

Event Extraction

Short-term Load Forecasting with Dense Average Network

no code implementations8 Dec 2019 Zhifang Liao, Haihui Pan, Qi Zeng, Xiaoping Fan, Yan Zhang, Song Yu

Therefore, improving the accuracy of power load forecasting has always been the pursuing goals for a power system.

Load Forecasting

Text Assisted Insight Ranking Using Context-Aware Memory Network

no code implementations13 Nov 2018 Qi Zeng, Liangchen Luo, Wenhao Huang, Yang Tang

Extracting valuable facts or informative summaries from multi-dimensional tables, i. e. insight mining, is an important task in data analysis and business intelligence.

Learning Personalized End-to-End Goal-Oriented Dialog

no code implementations12 Nov 2018 Liangchen Luo, Wenhao Huang, Qi Zeng, Zaiqing Nie, Xu sun

Most existing works on dialog systems only consider conversation content while neglecting the personality of the user the bot is interacting with, which begets several unsolved issues.

Goal-Oriented Dialog

An Auto-Encoder Matching Model for Learning Utterance-Level Semantic Dependency in Dialogue Generation

1 code implementation EMNLP 2018 Liangchen Luo, Jingjing Xu, Junyang Lin, Qi Zeng, Xu sun

Different from conventional text generation tasks, the mapping between inputs and responses in conversations is more complicated, which highly demands the understanding of utterance-level semantic dependency, a relation between the whole meanings of inputs and outputs.

Dialogue Generation

A Skeleton-Based Model for Promoting Coherence Among Sentences in Narrative Story Generation

1 code implementation EMNLP 2018 Jingjing Xu, Xuancheng Ren, Yi Zhang, Qi Zeng, Xiaoyan Cai, Xu sun

Compared to the state-of-the-art models, our skeleton-based model can generate significantly more coherent text according to human evaluation and automatic evaluation.

Story Generation

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