Search Results for author: Ziqi Wang

Found 46 papers, 22 papers with code

COVID-19 Claim Radar: A Structured Claim Extraction and Tracking System

1 code implementation ACL 2022 Manling Li, Revanth Gangi Reddy, Ziqi Wang, Yi-shyuan Chiang, Tuan Lai, Pengfei Yu, Zixuan Zhang, Heng Ji

To tackle the challenge of accurate and timely communication regarding the COVID-19 pandemic, we present a COVID-19 Claim Radar to automatically extract supporting and refuting claims on a daily basis.

Weak-to-Strong Extrapolation Expedites Alignment

no code implementations25 Apr 2024 Chujie Zheng, Ziqi Wang, Heng Ji, Minlie Huang, Nanyun Peng

Suppose we have a moderately trained LLM (e. g., trained to align with human preference) in hand, can we further exploit its potential and cheaply acquire a stronger model?

FedADMM-InSa: An Inexact and Self-Adaptive ADMM for Federated Learning

no code implementations21 Feb 2024 Yongcun Song, Ziqi Wang, Enrique Zuazua

First, we design an inexactness criterion for the clients' local updates to eliminate the need for empirically setting the local training accuracy.

Federated Learning

Chinese MentalBERT: Domain-Adaptive Pre-training on Social Media for Chinese Mental Health Text Analysis

1 code implementation14 Feb 2024 Wei Zhai, Hongzhi Qi, Qing Zhao, Jianqiang Li, Ziqi Wang, Han Wang, Bing Xiang Yang, Guanghui Fu

To address this, we have collected a huge dataset from Chinese social media platforms and enriched it with publicly available datasets to create a comprehensive database encompassing 3. 36 million text entries.

Language Modelling

Dimensionality reduction can be used as a surrogate model for high-dimensional forward uncertainty quantification

no code implementations7 Feb 2024 Jungho Kim, Sang-ri Yi, Ziqi Wang

The proposed method also diverges from the Probabilistic Learning on Manifold, as a reconstruction mapping from the feature space to the input-output space is circumvented.

Dimensionality Reduction Uncertainty Quantification

Iterative Preference Learning from Human Feedback: Bridging Theory and Practice for RLHF under KL-Constraint

no code implementations18 Dec 2023 Wei Xiong, Hanze Dong, Chenlu Ye, Ziqi Wang, Han Zhong, Heng Ji, Nan Jiang, Tong Zhang

This includes an iterative version of the Direct Preference Optimization (DPO) algorithm for online settings, and a multi-step rejection sampling strategy for offline scenarios.

Language Modelling Large Language Model

The impact of Hong Kong's anti-ELAB movement on political related firms

no code implementations28 Nov 2023 Ziqi Wang

Using the number of protestors as the measurement of daily protesting intensity from 2019/6/6 to 2020/1/17, this paper documents that the stock price of listed companies associated with the pan-democratic parties were more negatively affected by protesting than other companies.

TADIS: Steering Models for Deep-Thinking about Demonstration Examples

no code implementations2 Oct 2023 Tianci Xue, Ziqi Wang, Yixia Li, Yun Chen, Guanhua Chen

To alleviate the illusion of competence of models, we first ask the model to verify the correctness of shown examples.

Instruction Following Zero-shot Generalization

Enabling Language Models to Implicitly Learn Self-Improvement

no code implementations2 Oct 2023 Ziqi Wang, Le Hou, Tianjian Lu, Yuexin Wu, Yunxuan Li, Hongkun Yu, Heng Ji

Specifically, we reformulate the training objective of reinforcement learning from human feedback (RLHF) -- instead of maximizing response quality for a given input, we maximize the quality gap of the response conditioned on a reference response.

Text Generation

Parameter-Efficient Tuning Helps Language Model Alignment

no code implementations1 Oct 2023 Tianci Xue, Ziqi Wang, Heng Ji

To this end, prior works incorporate controllable generations for alignment to make language models learn multiple preferences and provide outputs with different preferences during inference if asked.

Language Modelling

Enabling Resource-efficient AIoT System with Cross-level Optimization: A survey

no code implementations27 Sep 2023 Sicong Liu, Bin Guo, Cheng Fang, Ziqi Wang, Shiyan Luo, Zimu Zhou, Zhiwen Yu

Accordingly, the accuracy and responsiveness of DL models are bounded by resource availability.

Scheduling

Approximate and Weighted Data Reconstruction Attack in Federated Learning

no code implementations13 Aug 2023 Yongcun Song, Ziqi Wang, Enrique Zuazua

Federated Learning (FL) is a distributed learning paradigm that enables multiple clients to collaborate on building a machine learning model without sharing their private data.

Bayesian Optimization Federated Learning +1

Psy-LLM: Scaling up Global Mental Health Psychological Services with AI-based Large Language Models

no code implementations22 Jul 2023 Tin Lai, Yukun Shi, Zicong Du, Jiajie Wu, Ken Fu, Yichao Dou, Ziqi Wang

The demand for psychological counselling has grown significantly in recent years, particularly with the global outbreak of COVID-19, which has heightened the need for timely and professional mental health support.

Question Answering

FewSAR: A Few-shot SAR Image Classification Benchmark

1 code implementation16 Jun 2023 Rui Zhang, Ziqi Wang, Yang Li, Jiabao Wang, Zhiteng Wang

Motivated by this observation, we propose a novel few-shot SAR image classification benchmark (FewSAR) to address this issue.

Classification Few-Shot Learning +2

Understanding the Effect of Data Augmentation on Knowledge Distillation

no code implementations21 May 2023 Ziqi Wang, Chi Han, Wenxuan Bao, Heng Ji

However, such data augmentation methods are sub-optimal for knowledge distillation since the teacher model could provide label distributions and is more tolerant to semantic shifts.

Data Augmentation Knowledge Distillation

Game-based Platforms for Artificial Intelligence Research

2 code implementations26 Apr 2023 Chengpeng Hu, Yunlong Zhao, Ziqi Wang, Haocheng Du, Jialin Liu

Games have been the perfect test-beds for artificial intelligence research for the characteristics that widely exist in real-world scenarios.

Decision Making Scheduling

SmartBook: AI-Assisted Situation Report Generation

1 code implementation25 Mar 2023 Revanth Gangi Reddy, Yi R. Fung, Qi Zeng, Manling Li, Ziqi Wang, Paul Sullivan, Heng Ji

Further, experiments show that expert analysts tend to add more information into the SmartBook reports, with only 2. 3% of the existing tokens being deleted, meaning SmartBook can serve as a useful foundation for analysts to build upon when creating intelligence reports.

Decision Making

Learning Long-Range Information with Dual-Scale Transformers for Indoor Scene Completion

no code implementations ICCV 2023 Ziqi Wang, Fei Luo, Xiaoxiao Long, Wenxiao Zhang, Chunxia Xiao

Due to the limited resolution of 3D sensors and the inevitable mutual occlusion between objects, 3D scans of real scenes are commonly incomplete.

State Space Closure: Revisiting Endless Online Level Generation via Reinforcement Learning

1 code implementation6 Dec 2022 Ziqi Wang, Tianye Shu, Jialin Liu

Concluding our outcomes and analysis, future work on endless online level generation via reinforcement learning should address the issue of diversity while assuring the occurrence of state space closure and quality.

reinforcement-learning Reinforcement Learning (RL)

Augmentation with Projection: Towards an Effective and Efficient Data Augmentation Paradigm for Distillation

1 code implementation21 Oct 2022 Ziqi Wang, Yuexin Wu, Frederick Liu, Daogao Liu, Le Hou, Hongkun Yu, Jing Li, Heng Ji

However, these data augmentation methods either potentially cause shifts in decision boundaries (representation interpolation), are not expressive enough (token replacement), or introduce too much computational overhead (augmentation with models).

Data Augmentation Knowledge Distillation

Online Game Level Generation from Music

1 code implementation12 Jul 2022 Ziqi Wang, Jialin Liu

Game consists of multiple types of content, while the harmony of different content types play an essential role in game design.

reinforcement-learning Reinforcement Learning (RL)

FALCON: Fast Visual Concept Learning by Integrating Images, Linguistic descriptions, and Conceptual Relations

no code implementations ICLR 2022 Lingjie Mei, Jiayuan Mao, Ziqi Wang, Chuang Gan, Joshua B. Tenenbaum

We present a meta-learning framework for learning new visual concepts quickly, from just one or a few examples, guided by multiple naturally occurring data streams: simultaneously looking at images, reading sentences that describe the objects in the scene, and interpreting supplemental sentences that relate the novel concept with other concepts.

Meta-Learning Novel Concepts +1

Enhancing Classifier Conservativeness and Robustness by Polynomiality

no code implementations CVPR 2022 Ziqi Wang, Marco Loog

We illustrate the detrimental effect, such as overconfident decisions, that exponential behavior can have in methods like classical LDA and logistic regression.

regression

Derivative-free Alternating Projection Algorithms for General Nonconvex-Concave Minimax Problems

no code implementations1 Aug 2021 Zi Xu, Ziqi Wang, Jingjing Shen, Yuhong Dai

In this paper, we study zeroth-order algorithms for nonconvex-concave minimax problems, which have attracted widely attention in machine learning, signal processing and many other fields in recent years.

Data Poisoning

Keiki: Towards Realistic Danmaku Generation via Sequential GANs

1 code implementation7 Jul 2021 Ziqi Wang, Jialin Liu, Georgios N. Yannakakis

Search-based procedural content generation methods have recently been introduced for the autonomous creation of bullet hell games.

Time Series Time Series Analysis

Ice front shaping by upward convective current

1 code implementation22 Dec 2020 Ziqi Wang, Linfeng Jiang, Yihong Du, Chao Sun, Enrico Calzavarini

We propose a boundary-layer model and a buoyancy-intensity model which account for the main features of the ice morphology.

Fluid Dynamics Geophysics

Reinforcement Learning with Dual-Observation for General Video Game Playing

1 code implementation11 Nov 2020 Chengpeng Hu, Ziqi Wang, Tianye Shu, Hao Tong, Julian Togelius, Xin Yao, Jialin Liu

Our proposed technique is implemented with three state-of-the-art reinforcement learning algorithms and tested on the game set of the 2020 General Video Game AI Learning Competition.

Decision Making reinforcement-learning +1

Respecting Domain Relations: Hypothesis Invariance for Domain Generalization

no code implementations15 Oct 2020 Ziqi Wang, Marco Loog, Jan van Gemert

In this work, we define DIRs employed by existing works in probabilistic terms and show that by learning DIRs, overly strict requirements are imposed concerning the invariance.

Domain Generalization

Black Magic in Deep Learning: How Human Skill Impacts Network Training

1 code implementation13 Aug 2020 Kanav Anand, Ziqi Wang, Marco Loog, Jan van Gemert

Our study investigates the subjective human factor in comparisons of state of the art results and scientific reproducibility in deep learning.

Hyperparameter Optimization

A Novel CNet-assisted Evolutionary Level Repairer and Its Applications to Super Mario Bros

4 code implementations13 May 2020 Tianye Shu, Ziqi Wang, Jialin Liu, Xin Yao

However, defective levels with illegal patterns may be generated due to the violation of constraints for level design.

Probabilistic Performance-Pattern Decomposition (PPPD): analysis framework and applications to stochastic mechanical systems

no code implementations4 Mar 2020 Ziqi Wang, Marco Broccardo, Junho Song

Since the early 1900s, numerous research efforts have been devoted to developing quantitative solutions to stochastic mechanical systems.

Learning from Explanations with Neural Execution Tree

1 code implementation ICLR 2020 Ziqi Wang, Yujia Qin, Wenxuan Zhou, Jun Yan, Qinyuan Ye, Leonardo Neves, Zhiyuan Liu, Xiang Ren

While deep neural networks have achieved impressive performance on a range of NLP tasks, these data-hungry models heavily rely on labeled data, which restricts their applications in scenarios where data annotation is expensive.

Data Augmentation Multi-hop Question Answering +6

HMEAE: Hierarchical Modular Event Argument Extraction

1 code implementation IJCNLP 2019 Xiaozhi Wang, Ziqi Wang, Xu Han, Zhiyuan Liu, Juanzi Li, Peng Li, Maosong Sun, Jie zhou, Xiang Ren

Existing event extraction methods classify each argument role independently, ignoring the conceptual correlations between different argument roles.

Event Argument Extraction Event Extraction +1

Attention-Aware Age-Agnostic Visual Place Recognition

no code implementations11 Sep 2019 Ziqi Wang, Jiahui Li, Seyran Khademi, Jan van Gemert

Different from conventional VPR settings where the query images and gallery images come from the same domain, we propose a more common but challenging setup where the query images are collected under a new unseen condition.

Domain Adaptation Image Retrieval +2

NERO: A Neural Rule Grounding Framework for Label-Efficient Relation Extraction

2 code implementations5 Sep 2019 Wenxuan Zhou, Hongtao Lin, Bill Yuchen Lin, Ziqi Wang, Junyi Du, Leonardo Neves, Xiang Ren

The soft matching module learns to match rules with semantically similar sentences such that raw corpora can be automatically labeled and leveraged by the RE module (in a much better coverage) as augmented supervision, in addition to the exactly matched sentences.

Relation Relation Extraction +1

A novel active learning-based Gaussian process metamodelling strategy for estimating the full probability distribution in forward UQ analysis

no code implementations27 Aug 2019 Ziqi Wang, Marco Broccardo

This paper proposes an active learning-based Gaussian process (AL-GP) metamodelling method to estimate the cumulative as well as complementary cumulative distribution function (CDF/CCDF) for forward uncertainty quantification (UQ) problems.

Active Learning Computational Efficiency +1

How to Manipulate CNNs to Make Them Lie: the GradCAM Case

no code implementations25 Jul 2019 Tom Viering, Ziqi Wang, Marco Loog, Elmar Eisemann

This illustrates that GradCAM cannot explain the decision of every CNN and provides a proof of concept showing that it is possible to obfuscate the inner workings of a CNN.

Deep Residual Neural Networks for Audio Spoofing Detection

1 code implementation30 Jun 2019 Moustafa Alzantot, Ziqi Wang, Mani B. Srivastava

Additionally, replay attacks where the attacker uses a speaker to replay a previously recorded genuine human speech are also possible.

Speaker Verification Speech Synthesis +1

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