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Lu Chen

91 accepted papers

2026

A Unified Federated Framework for Trajectory Data Preparation via LLMs

ICLR 2026poster

Trajectory data records the spatio-temporal movements of people and vehicles. However, raw trajectories are often noisy, incomplete, or inconsistent due to sensor errors and transmission failures. To ensure reliable downstream analytics, Trajectory Data Preparation (TDP) has emerged as a critical pr…

Cited by 0SourceScholar
2026

Can LLMs Reason Soundly in Law? Auditing Inference Patterns for Legal Judgment

ICLR 2026poster

This paper presents a method to analyze the inference patterns used by Large Language Models (LLMs) for judgment in a case study on legal LLMs, so as to identify potential incorrect representations of the LLM, according to human domain knowledge. Unlike traditional evaluations on language generation…

Cited by 0SourceScholar
2026

Empowering LLM Tool Invocation with Tool-call Reward Model

ICLR 2026poster

Large Language Models (LLMs) have recently alleviated limitations in outdated internal knowledge and computational inaccuracies by invoking external tools such as search engines and code generation. While reinforcement learning (RL) has substantially enhanced tool usage in LLMs, most existing agenti…

Cited by 0SourceScholar
2026

M4PQA: A Comprehensive QA Dataset for AI Research with Instance-Level Evaluation

ICLR 2026poster

The growing volume of academic papers has made it increasingly difficult for researchers to efficiently extract key information. While large language models (LLMs) based agents are capable of automating question answering (QA) workflows for scientific papers, there still lacks a comprehensive and re…

Cited by 0SourceScholar
2026

Spatial Structure and Selective Text Jointly Facilitate Image Clustering

ICLR 2026poster

Image clustering is a fundamental task in visual machine learning. A key research direction in this field is the incorporation of prior knowledge. Recently, such prior knowledge has evolved from internal compactness constraints to external textual guidance. In particular, the introduction of textual…

Cited by 0SourceScholar
2026

TacTip-Based Dynamic Contact Force Estimation with Sequential Tactile Images and Its Applications to Robotic Force Tracking

ICRA 2026poster

Force estimation is crucial for robotics, human--machine interaction, and industrial automation. However, traditional methods are often hindered by high cost, mechanical wear, and limited accuracy in dynamic scenarios. Vision-based tactile sensing provides a promising alternative, yet existing appro…

Cited by 0Scholar
2026

Think Fast: Real-Time Kinodynamic Belief Space Planning for Projectile Interception

ICRA 2026poster

Intercepting fast moving objects, by its very nature, is challenging because of its tight time constraints. This problem becomes further complicated in the presence of sensor noise because noisy sensors provide, at best, incomplete information, which results in a distribution over target states to b…

2026

Uncertainty-Guided View-Strength-Aware Feature Utilization for Multi-View Classification

AAAI 2026technical

In multi-view classification tasks (MVC), each view provides an unique perspective on the data, offering complementary information that can improve classification performance when properly integrated. However, traditional methods typically adopt a uniform processing strategy for all views before fus

Cited by 0SourcePDFScholar
2025

AgentGym: Evaluating and Training Large Language Model-based Agents across Diverse Environments

ACL 2025long

Large language models (LLMs) have emerged as a promising foundation to build generally-capable agents (LLM-based agents) that can handle multi-turn decision-making tasks across various environments. However, the community lacks a unified interactive framework that covers diverse environments for com…

2025

Alignment for Efficient Tool Calling of Large Language Models

EMNLP 2025

Recent advancements in tool learning have enabled large language models (LLMs) to integrate external tools, enhancing their task performance by expanding their knowledge boundaries. However, relying on tools often introduces trade-offs between performance, speed, and cost, with LLMs sometimes exhibi

Cited by 0SourcePDFScholar
2025

An Association-based Fusion Method for Speech Enhancement

IJCAI 2025

Deep learning-based speech enhancement (SE) methods predominantly draw upon two architectural frameworks: generative adversarial networks and diffusion models. In the realm of SE, capturing the local and global relations between signal frames is crucial for the success of these methods. These framew

2025

Arrow: Accelerator for Time Series Causal Discovery with Time Weaving

ICML 2025poster

Current causal discovery methods for time series data can effectively address a variety of scenarios; however, they remain constrained by inefficiencies. The significant inefficiencies arise primarily from the high computational costs associated with binning, the uncertainty in selecting appropriate…

Cited by 0SourcePDFScholar
2025

Causal Spatio-Temporal Prediction: An Effective and Efficient Multi-Modal Approach

NeurIPS 2025poster

Spatio-temporal prediction plays a crucial role in intelligent transportation, weather forecasting, and urban planning. While integrating multi-modal data has shown potential for enhancing prediction accuracy, key challenges persist: (i) inadequate fusion of multi-modal information, (ii) confounding…

Cited by 0SourceScholar
2025

ChatCite: LLM Agent with Human Workflow Guidance for Comparative Literature Summary

COLING 2025main

The literature review is an indispensable step in the research process. It provides the benefit of comprehending the research problem and understanding the current research situation while conducting a comparative analysis of prior works. However, literature summary is challenging and time consuming…

2025

Contrasting Adversarial Perturbations: The Space of Harmless Perturbations

AAAI 2025technical

Existing works have extensively studied adversarial examples, which are minimal perturbations that can mislead the output of deep neural networks (DNNs) while remaining imperceptible to humans. However, in this work, we reveal the existence of a harmless perturbation space, in which perturbations dr…

2025

Converging to a Lingua Franca: Evolution of Linguistic Regions and Semantics Alignment in Multilingual Large Language Models

COLING 2025main

Large language models (LLMs) have demonstrated remarkable performance, particularly in multilingual contexts. While recent studies suggest that LLMs can transfer skills learned in one language to others, the internal mechanisms behind this ability remain unclear. We observed that the neuron activati…

2025

Disambiguate Gripper State in Grasp-Based Tasks: Pseudo-Tactile as Feedback Enables Pure Simulation Learning

IROS 2025

Grasp-based manipulation tasks are fundamental to robots interacting with their environments, yet gripper state ambiguity significantly reduces the robustness of imitation learning policies for these tasks. Data-driven solutions face the challenge of high real-world data costs, while simulation data

Cited by 2SourceScholar
2025

Domain-Invariant Feature Learning via Margin and Structure Priors for Robotic Grasping

RA-L 2025

Existing grasp detection methods usually rely on data-driven strategies to learn grasping features from labeled data, restricting their generalization to new scenes and objects. Preliminary researches introduce domain-invariant methods which tend to simply consider single visual representations and

Cited by 11SourceScholar
2025

EgoAgent: A Joint Predictive Agent Model in Egocentric Worlds

ICCV 2025poster

Learning an agent model that behaves like humans--capable of jointly perceiving the environment, predicting the future, and taking actions from a first-person perspective--is a fundamental challenge in computer vision. Existing methods typically train separate models for these abilities, which fail…

2025

From Generalist to Specialist: A Survey of Large Language Models for Chemistry

COLING 2025main

Large Language Models (LLMs) have significantly transformed our daily life and established a new paradigm in natural language processing (NLP). However, the predominant pretraining of LLMs on extensive web-based texts remains insufficient for advanced scientific discovery, particularly in chemistry.…

2025

FuncGenFoil: Airfoil Generation and Editing Model in Function Space

NeurIPS 2025poster

Aircraft manufacturing is the jewel in the crown of industry, in which generating high-fidelity airfoil geometries with controllable and editable representations remains a fundamental challenge. Existing deep learning methods, which typically rely on predefined parametric representations (e.g., Bézi…

Cited by 0SourcecodeScholar
2025

GTR: A General, Multi-View, and Dynamic Framework for Trajectory Representation Learning

ICML 2025poster

Trajectory representation learning aims to transform raw trajectory data into compact and low-dimensional vectors that are suitable for downstream analysis. However, most existing methods adopt either a free-space view or a road-network view during the learning process, which limits their ability to…

2025

Heads up! Large Language Models Can Perform Tasks Without Your Instruction via Selective Attention Head Masking

ICML 2025poster

Large language models (LLMs) consist of numerous Transformer modules, and while the models can perform various functions, it remains an open question of how these modules are combined to elicit distinct inherent functionalities. In this paper, we investigate the modules inside LLMs and demonstrate t…

2025

Human-Centric Foundation Models: Perception, Generation and Agentic Modeling

IJCAI 2025

Human understanding and generation are critical for modeling digital humans and humanoid embodiments. Recently, Human-centric Foundation Models (HcFMs)—inspired by the success of generalist models such as large language and vision models—have emerged to unify diverse human-centric tasks into a singl

2025

MS-BART: Unified Modeling of Mass Spectra and Molecules for Structure Elucidation

NeurIPS 2025poster

Mass spectrometry (MS) plays a critical role in molecular identification, significantly advancing scientific discovery. However, structure elucidation from MS data remains challenging due to the scarcity of annotated spectra. While large-scale pretraining has proven effective in addressing data scar…

Cited by 0SourcecodeScholar
2025

MobA: Multifaceted Memory-Enhanced Adaptive Planning for Efficient Mobile Task Automation

NAACL 2025system demonstrations

Existing Multimodal Large Language Model (MLLM)-based agents face significant challenges in handling complex GUI (Graphical User Interface) interactions on devices. These challenges arise from the dynamic and structured nature of GUI environments, which integrate text, images, and spatial relationsh…

2025

Multi-SWE-bench: A Multilingual Benchmark for Issue Resolving

NeurIPS 2025poster

The task of issue resolving aims to modify a codebase to generate a patch that addresses a given issue. However, most existing benchmarks focus almost exclusively on Python, making them insufficient for evaluating Large Language Models (LLMs) across different programming languages. To bridge this ga…

Cited by 0SourceScholar
2025

Natural Humanoid Robot Locomotion with Generative Motion Prior

IROS 2025

Natural and lifelike locomotion remains a fundamental challenge for humanoid robots to interact with human society. However, previous methods either neglect motion naturalness or rely on unstable and ambiguous style rewards. In this paper, we propose a novel Generative Motion Prior (GMP) that provid

Cited by 10SourceScholar
2025

NeuSym-RAG: Hybrid Neural Symbolic Retrieval with Multiview Structuring for PDF Question Answering

ACL 2025long

The increasing number of academic papers poses significant challenges for researchers to efficiently acquire key details. While retrieval augmented generation (RAG) shows great promise in large language model (LLM) based automated question answering, previous works often isolate neural and symbolic…

2025

Occlusion-Aware 6D Pose Estimation with Depth-Guided Graph Encoding and Cross-Semantic Fusion for Robotic Grasping

ICRA 2025

Reliable 6D pose estimation is crucial for robotic tasks but presents significant challenges in environments with occlusion. Recent approaches tend to directly predict pose parameters of object with deep neural networks, lacking the modeling ability of non-adjacent and complex relationships of surfa

Cited by 3SourceScholar
2025

Parrot: A Training Pipeline Enhances Both Program CoT and Natural Language CoT for Reasoning

EMNLP 2025

Natural language chain-of-thought (N-CoT) and Program chain-of-thought (P-CoT) have emerged as two primary paradigms for large language models (LLMs) to solve mathematical reasoning problems. Current research typically endeavors to achieve unidirectional enhancement: P-CoT enhanced N-CoT or N-CoT en

2025

Reducing Tool Hallucination via Reliability Alignment

ICML 2025poster

Large Language Models (LLMs) have expanded their capabilities beyond language generation to interact with external tools, enabling automation and real-world applications. However, tool hallucinations—where models either select inappropriate tools or misuse them—pose significant challenges, leading t…

Cited by 6SourcePDFScholar
2025

RobustZero: Enhancing MuZero Reinforcement Learning Robustness to State Perturbations

ICML 2025poster

The MuZero reinforcement learning method has achieved superhuman performance at games, and advances that enable MuZero to contend with complex actions now enable use of MuZero-class methods in real-world decision-making applications. However, some real-world applications are susceptible to state per…

Cited by 0SourcePDFScholar
2025

SPA-VL: A Comprehensive Safety Preference Alignment Dataset for Vision Language Models

CVPR 2025poster

The emergence of Vision Language Models (VLMs) has brought unprecedented advances in understanding multimodal information. The combination of textual and visual semantics in VLMs is highly complex and diverse, making the safety alignment of these models challenging. Furthermore, due to the limited s…

2025

Task-Specific Data Selection for Instruction Tuning via Monosemantic Neuronal Activations

NeurIPS 2025poster

Instruction tuning improves the ability of large language models (LLMs) to follow diverse human instructions, but achieving strong performance on specific target tasks remains challenging. A critical bottleneck is selecting the most relevant data to maximize task-specific performance. Existing data…

Cited by 0SourceScholar
2025

TranSUN: A Preemptive Paradigm to Eradicate Retransformation Bias Intrinsically from Regression Models in Recommender Systems

NeurIPS 2025poster

Regression models are crucial in recommender systems. However, retransformation bias problem has been conspicuously neglected within the community. While many works in other fields have devised effective bias correction methods, all of them are post-hoc cures externally to the model, facing practica…

Cited by 0SourceScholar
2025

View-Association-Guided Dynamic Multi-View Classification

IJCAI 2025

In multi-view classification tasks, integrating information from multiple views effectively is crucial for improving model performance. However, most existing methods fail to fully leverage the complex relationships between views, often treating them independently or using static fusion strategies.

Cited by 0SourcePDFScholar
2025

When Long Helps Short: How Context Length in Supervised Fine-tuning Affects Behavior of Large Language Models

EMNLP 2025

Large language models (LLMs) have achieved impressive performance across natural language processing (NLP) tasks. As real-world applications increasingly demand longer context windows, continued pretraining and supervised fine-tuning (SFT) on long-context data has become a common approach. While the

Cited by 0SourcePDFScholar
2024

A Birgat Model for Multi-Intent Spoken Language Understanding with Hierarchical Semantic Frames

ICASSP 2024accepted

Previous work on spoken language understanding (SLU) mainly focuses on single-intent settings, where each input utterance merely contains one user intent. This configuration significantly limits the surface form of user utterances and the capacity of output semantics. In this work, we firstly propos…

Cited by 0SourceScholar
2024

AlignSum: Data Pyramid Hierarchical Fine-tuning for Aligning with Human Summarization Preference

EMNLP 2024finding

Text summarization tasks commonly employ Pre-trained Language Models (PLMs) to fit diverse standard datasets. While these PLMs excel in automatic evaluations, they frequently underperform in human evaluations, indicating a deviation between their generated summaries and human summarization preferenc…

2024

CoE-SQL: In-Context Learning for Multi-Turn Text-to-SQL with Chain-of-Editions

NAACL 2024long

Recently, Large Language Models (LLMs) have been demonstrated to possess impressive capabilities in a variety of domains and tasks. We investigate the issue of prompt design in the multi-turn text-to-SQL task and attempt to enhance the LLMs’ reasoning capacity when generating SQL queries. In the con…

2024

Controlling Risk of Retrieval-augmented Generation: A Counterfactual Prompting Framework

EMNLP 2024finding

Retrieval-augmented generation (RAG) has emerged as a popular solution to mitigate the hallucination issues of large language models. However, existing studies on RAG seldom address the issue of predictive uncertainty, i.e., how likely it is that a RAG model’s prediction is incorrect, resulting in u…

2024

Defining and extracting generalizable interaction primitives from DNNs

ICLR 2024poster

Faithfully summarizing the knowledge encoded by a deep neural network (DNN) into a few symbolic primitive patterns without losing much information represents a core challenge in explainable AI. To this end, Ren et al. (2024) have derived a series of theorems to prove that the inference score of a DN…

2024

GlobalPointer: Large-Scale Plane Adjustment with Bi-Convex Relaxation

ECCV 2024poster

"Plane adjustment (PA) is crucial for many 3D applications, involving simultaneous pose estimation and plane recovery. Despite recent advancements, it remains a challenging problem in the realm of multi-view point cloud registration. Current state-of-the-art methods can achieve globally optimal conv…

2024

IBSEN: Director-Actor Agent Collaboration for Controllable and Interactive Drama Script Generation

ACL 2024long

Large language models have demonstrated their capabilities in storyline creation and human-like character role-playing. Current language model agents mainly focus on reasonable behaviors from the level of individuals, and their behaviors might be hard to constraint on the level of the whole storylin…

2024

Improving Discriminative Capability of Reward Models in RLHF Using Contrastive Learning

EMNLP 2024main

Reinforcement Learning from Human Feedback (RLHF) is a crucial approach to aligning language models with human values and intentions. A fundamental challenge in this method lies in ensuring that the reward model accurately understands and evaluates human preferences. Current methods rely on ranking…

Cited by 2SourcePDFScholar
2024

Is LLM a Reliable Reviewer? A Comprehensive Evaluation of LLM on Automatic Paper Reviewing Tasks

COLING 2024main

The use of large language models (LLM), especially ChatGPT, to help with research has come into practice. Researchers use it for timely advice and hope to obtain in-depth feedback. However, can LLM be a qualified and reliable reviewer? Although there already exist several review-related datasets, fe…

Cited by 40SourcePDFScholar
2024

MotionGPT: Finetuned LLMs Are General-Purpose Motion Generators

AAAI 2024technical

Generating realistic human motion from given action descriptions has experienced significant advancements because of the emerging requirement of digital humans. While recent works have achieved impressive results in generating motion directly from textual action descriptions, they often support only…

2024

Multilingual Brain Surgeon: Large Language Models Can Be Compressed Leaving No Language behind

COLING 2024main

Large Language Models (LLMs) have ushered in a new era in Natural Language Processing, but their massive size demands effective compression techniques for practicality. Although numerous model compression techniques have been investigated, they typically rely on a calibration set that overlooks the…

2024

Multimodal Evolutionary Encoder for Continuous Vision-Language Navigation

IROS 2024poster

Can multimodal encoder evolve when facing increasingly tough circumstances? Our work investigates this possibility in the context of continuous vision-language navigation (continuous VLN), which aims to navigate robots under linguistic supervision and visual feedback. We propose a multimodal evoluti…

Cited by 0SourcecodeScholar
2024

RSL-BA: Rolling Shutter Line Bundle Adjustment

ECCV 2024poster

"The line is a prevalent element in man-made environments, inherently encoding spatial structural information, thus making it a more robust choice for feature representation in practical applications. Despite its apparent advantages, previous rolling shutter bundle adjustment (RSBA) methods have onl…

2024

Reward Modeling Requires Automatic Adjustment Based on Data Quality

EMNLP 2024finding

In Reinforcement Learning from Human Feedback (RLHF), the reward model plays a crucial role in aligning language model outputs with human values. The human preference data used to train the reward model consists of a prompt and a response pair, with humans annotating which response better aligns wit…

2024

SciEval: A Multi-Level Large Language Model Evaluation Benchmark for Scientific Research

AAAI 2024technical

Recently, there has been growing interest in using Large Language Models (LLMs) for scientific research. Numerous benchmarks have been proposed to evaluate the ability of LLMs for scientific research. However, current benchmarks are mostly based on pre-collected objective questions. This design suff…

2024

Smaller and Faster Robotic Grasp Detection Model via Knowledge Distillation and Unequal Feature Encoding

RA-L 2024

In order to achieve higher accuracy, the complexity of grasp detection network increases accordingly with complicated model structures and tremendous parameters. Although various light-weight strategies are adopted, directly designing the compact network can be sub-optimal and difficult to strike th

Cited by 12SourceScholar
2024

Sparsity-Accelerated Training for Large Language Models

ACL 2024findings

Large language models (LLMs) have demonstrated proficiency across various natural language processing (NLP) tasks but often require additional training, such as continual pre-training and supervised fine-tuning. However, the costs associated with this, primarily due to their large parameter count, r…

2024

Spider2-V: How Far Are Multimodal Agents From Automating Data Science and Engineering Workflows?

NeurIPS 2024spotlight

Data science and engineering workflows often span multiple stages, from warehousing to orchestration, using tools like BigQuery, dbt, and Airbyte. As vision language models (VLMs) advance in multimodal understanding and code generation, VLM-based agents could potentially automate these workflows by…

2023

ACT-SQL: In-Context Learning for Text-to-SQL with Automatically-Generated Chain-of-Thought

EMNLP 2023long findings

Recently Large Language Models (LLMs) have been proven to have strong abilities in various domains and tasks. We study the problem of prompt designing in the text-to-SQL task and attempt to improve the LLMs' reasoning ability when generating SQL queries. Besides the trivial few-shot in-context learn…

Cited by 0SourcecodeScholar
2023

CSS: A Large-scale Cross-schema Chinese Text-to-SQL Medical Dataset

ACL 2023findings

The cross-domain text-to-SQL task aims to build a system that can parse user questions into SQL on complete unseen databases, and the single-domain text-to-SQL task evaluates the performance on identical databases. Both of these setups confront unavoidable difficulties in real-world applications. To…

2023

Exploring Schema Generalizability of Text-to-SQL

ACL 2023findings

Exploring the generalizability of a text-to-SQL parser is essential for a system to automatically adapt the real-world databases. Previous investigation works mostly focus on lexical diversity, including the influence of the synonym and perturbations in both natural language questions and databases.…

Cited by 2SourcePDFScholar
2023

HarsanyiNet: Computing Accurate Shapley Values in a Single Forward Propagation

ICML 2023poster

The Shapley value is widely regarded as a trustworthy attribution metric. However, when people use Shapley values to explain the attribution of input variables of a deep neural network (DNN), it usually requires a very high computational cost to approximate relatively accurate Shapley values in real…

2023

Large Language Models Are Semi-Parametric Reinforcement Learning Agents

NeurIPS 2023poster

Inspired by the insights in cognitive science with respect to human memory and reasoning mechanism, a novel evolvable LLM-based (Large Language Model) agent framework is proposed as Rememberer. By equipping the LLM with a long-term experience memory, Rememberer is capable of exploiting the experienc…

2023

Multiple Thinking Achieving Meta-Ability Decoupling for Object Navigation

ICML 2023poster

We propose a meta-ability decoupling (MAD) paradigm, which brings together various object navigation methods in an architecture system, allowing them to mutually enhance each other and evolve together. Based on the MAD paradigm, we design a multiple thinking (MT) model that leverages distinct thinki…

Cited by 10SourcePDFScholar
2023

Robust Real-Time Motion Retargeting via Neural Latent Prediction

IROS 2023poster

Human-robot motion retargeting is a crucial approach for fast learning motion skills. Achieving real-time retargeting demands high levels of synchronization and accuracy. Even though existing retargeting methods have swift calculation, they still cause time-delay effect on the synchronous retargetin…

Cited by 1SourceScholar
2023

VERGNet: Visual Enhancement Guided Robotic Grasp Detection Under Low-Light Condition

RA-L 2023

Although existing grasp detection methods have achieved encouraging performance under well-light conditions, repetitive experiments have found that the detection performance would deteriorate drastically under low-light conditions. Although supplementary information can be provided by additional sen

Cited by 23SourceScholar
2023

Visual-Tactile Robot Grasping Based on Human Skill Learning From Demonstrations Using a Wearable Parallel Hand Exoskeleton

RA-L 2023

The soft fingers and strategic grasping skills enable the human hands to grasp objects in a stable manner. This letter is to model human grasping skills and transfer the learned skills to robots to improve grasping quality and success rate. First, we designed a wearable tool-like parallel hand exosk

Cited by 24SourceScholar
2022

AdapterShare: Task Correlation Modeling with Adapter Differentiation

EMNLP 2022main

Thanks to the development of pre-trained language models, multitask learning (MTL) methods achieve a great success in natural language understanding area.However, current MTL methods pay more attention to task selection or model design to fuse as much knowledge as possible, while intrinsic task corr…

2022

D4: a Chinese Dialogue Dataset for Depression-Diagnosis-Oriented Chat

EMNLP 2022main

In a depression-diagnosis-directed clinical session, doctors initiate a conversation with ample emotional support that guides the patients to expose their symptoms based on clinical diagnosis criteria. Such a dialogue system is distinguished from existing single-purpose human-machine dialog systems,…

2022

META-GUI: Towards Multi-modal Conversational Agents on Mobile GUI

EMNLP 2022main

Task-oriented dialogue (TOD) systems have been widely used by mobile phone intelligent assistants to accomplish tasks such as calendar scheduling or hotel reservation. Current TOD systems usually focus on multi-turn text/speech interaction, then they would call back-end APIs designed for TODs to per…

Cited by 61SourcePDFScholar
2022

MetaER-TTE: An Adaptive Meta-learning Model for En Route Travel Time Estimation

IJCAI 2022poster

En route travel time estimation (ER-TTE) aims to predict the travel time on the remaining route. Since the traveled and remaining parts of a trip usually have some common characteristics like driving speed, it is desirable to explore these characteristics for improved performance via effective adapt…

Cited by 15SourcePDFScholar
2022

TIE: Topological Information Enhanced Structural Reading Comprehension on Web Pages

NAACL 2022long

Recently, the structural reading comprehension (SRC) task on web pages has attracted increasing research interests. Although previous SRC work has leveraged extra information such as HTML tags or XPaths, the informative topology of web pages is not effectively exploited. In this work, we propose a T…

2022

When Transfer Learning Meets Cross-City Urban Flow Prediction: Spatio-Temporal Adaptation Matters

IJCAI 2022poster

Urban flow prediction is a fundamental task to build smart cities, where neural networks have become the most popular method. However, the deep learning methods typically rely on massive training data that are probably inaccessible in real world. In light of this, the community calls for knowledge t…

Cited by 22SourcePDFScholar
2021

LET: Linguistic Knowledge Enhanced Graph Transformer for Chinese Short Text Matching

AAAI 2021technical

Chinese short text matching is a fundamental task in natural language processing. Existing approaches usually take Chinese characters or words as input tokens. They have two limitations: 1) Some Chinese words are polysemous, and semantic information is not fully utilized. 2) Some models suffer poten…

2021

LGESQL: Line Graph Enhanced Text-to-SQL Model with Mixed Local and Non-Local Relations

ACL 2021long

This work aims to tackle the challenging heterogeneous graph encoding problem in the text-to-SQL task. Previous methods are typically node-centric and merely utilize different weight matrices to parameterize edge types, which 1) ignore the rich semantics embedded in the topological structure of edge…

2021

ShadowGNN: Graph Projection Neural Network for Text-to-SQL Parser

NAACL 2021long

Given a database schema, Text-to-SQL aims to translate a natural language question into the corresponding SQL query. Under the setup of cross-domain, traditional semantic parsing models struggle to adapt to unseen database schemas. To improve the model generalization capability for rare and unseen s…

2021

Towards a Unified Game-Theoretic View of Adversarial Perturbations and Robustness

NeurIPS 2021poster

This paper provides a unified view to explain different adversarial attacks and defense methods, i.e. the view of multi-order interactions between input variables of DNNs. Based on the multi-order interaction, we discover that adversarial attacks mainly affect high-order interactions to fool the DNN…

2021

WebSRC: A Dataset for Web-Based Structural Reading Comprehension

EMNLP 2021main

Web search is an essential way for humans to obtain information, but it’s still a great challenge for machines to understand the contents of web pages. In this paper, we introduce the task of web-based structural reading comprehension. Given a web page and a question about it, the task is to find an…

Cited by 85SourcePDFScholar
2020

Addressing the Polysemy Problem in Language Modeling with Attentional Multi-Sense Embeddings

ICASSP 2020accepted

Neural network language models have gained considerable popularity due to their promising performance. Distributed word embeddings are utilized to represent semantic information. However, each word is associated with a single vector in the embedding layer, disabling the model from capturing the mean…

Cited by 0SourceScholar
2020

Optimized Foothold Planning and Posture Searching for Energy-Efficient Quadruped Locomotion over Challenging Terrains

ICRA 2020poster

Energy-efficient locomotion is of primary importance for legged robot to extend operation time in practical applications. This paper presents an approach to achieve energy-efficient locomotion for a quadrupedal robot walking over challenging terrains. Firstly, we optimize the nominal stance paramete…

Cited by 14SourceScholar
2018

Policy Adaptation for Deep Reinforcement Learning-Based Dialogue Management

ICASSP 2018accepted

Policy optimization is the core part of statistical dialogue management. Deep reinforcement learning has been successfully used for dialogue policy optimization for a static pre-defined domain. However, when the domain changes dynamically, e.g. a new previously unseen concept (or slot) which can be…

Cited by 0SourceScholar