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Ru Li

35 accepted papers

2026

Learning to Generate and Extract: A Multi-Agent Collaboration Framework for Zero-Shot Document-Level Event Arguments Extraction

AAAI 2026technical

Document-level event argument extraction (DEAE) is essential for knowledge acquisition, aiming to extract participants of events from documents. In the zero-shot setting, existing methods employ LLMs to generate synthetic data to address the challenge posed by the scarcity of annotated data. However

Cited by 0SourcePDFScholar
2026

QueryMe: Query-Driven Open-Vocabulary 3D Object Affordances Grounding from Multimodal Evidence

CVPR 2026

Open-vocabulary 3D object affordance grounding aims to identify functional regions of objects given arbitrary semantic descriptions. However, existing methods often rely on fixed training categories and geometric priors, lacking geometric invariance and analogical reasoning capabilities. Since there

Cited by 0SourceScholar
2026

Uncovering and Mitigating Transient Blindness in Multimodal Model Editing

AAAI 2026technical

Multimodal Model Editing (MMED) aims to correct erroneous knowledge in multimodal models. Existing evaluation methods, adapted from textual model editing, overstate success by relying on low-similarity or random inputs, obscure overfitting. We propose a comprehensive locality evaluation framework,

Cited by 0SourcePDFScholar
2025

Diff-Shadow: Global-guided Diffusion Model for Shadow Removal

AAAI 2025technical

We propose Diff-Shadow, a global-guided diffusion model for high-quality shadow removal. Previous transformer-based approaches can utilize global information to relate shadow and non-shadow regions but are limited in their synthesis ability and recover images with obvious boundaries. In contrast, di…

2025

Dynamic Energy-Based Contrastive Learning with Multi-Stage Knowledge Verification for Event Causality Identification

EMNLP 2025

Event Causal Identification (ECI) aims to identify fine-grained causal relationships between events from unstructured text. Contrastive learning has shown promise in enhancing ECI by optimizing representation distances between positive and negative samples. However, existing methods often rely on ru

Cited by 0SourcePDFScholar
2025

Enhancing Event Causality Identification with LLM Knowledge and Concept-Level Event Relations

COLING 2025main

Event Causality Identification (ECI) aims to identify fine-grained causal relationships between events in an unstructured text. Existing ECI methods primarily rely on knowledge enhanced and graph-based reasoning approaches, but they often overlook the dependencies between similar events. Additionall…

Cited by 0SourcePDFScholar
2025

LOG: A Local-to-Global Optimization Approach for Retrieval-based Explainable Multi-Hop Question Answering

COLING 2025main

Multi-hop question answering (MHQA) aims to utilize multi-source intensive documents retrieved to derive the answer. However, it is very challenging to model the importance of knowledge retrieved. Previous approaches primarily emphasize single-step and multi-step iterative decomposition or retrieval…

2025

Memorization ≠ Understanding: Do Large Language Models Have the Ability of Scenario Cognition?

EMNLP 2025

Driven by vast and diverse textual data, large language models (LLMs) have demonstrated impressive performance across numerous natural language processing (NLP) tasks. Yet, a critical question persists: does their generalization arise from mere memorization of training data or from deep semantic und

Cited by 0SourcePDFScholar
2025

Microtitre Plate Image Augmentation with Generative Adversarial Networks

ICASSP 2025accepted

Antibiotic Susceptibility Testing (AST) based on microorganism culturing is the gold-standard technique to determine whether a pathogen is susceptible or resistant to available antibiotics. While broth microdilution offers a potential high-throughput method for AST, reading and interpreting microtit…

Cited by 0SourceScholar
2025

Mitigating Shortcut Learning via Smart Data Augmentation based on Large Language Model

COLING 2025main

Data-driven pre-trained language models typically perform shortcut learning wherein they rely on the spurious correlations between the data and the ground truth. This reliance can undermine the robustness and generalization of the model. To address this issue, data augmentation emerges as a promisin…

Cited by 0SourcePDFScholar
2025

Multi-view Consistent 3D Panoptic Scene Understanding

AAAI 2025technical

3D panoptic scene understanding seeks to create novel view images with 3D-consistent panoptic segmentation, which is crucial for many vision and robotics applications. Mainstream methods (e.g., Panoptic Lifting) directly use machine-generated 2D panoptic segmentation masks as training labels. Howeve…

Cited by 0SourcePDFScholar
2025

Path-Adaptive Matting for Efficient Inference Under Various Computational Cost Constraints

AAAI 2025technical

In this paper, we explore a novel image matting task aimed at achieving efficient inference under various computational cost constraints, specifically FLOP limitations, using a single matting network. Existing matting methods which have not explored scalable architectures or path-learning strategies…

Cited by 0SourcePDFScholar
2024

AGR: Reinforced Causal Agent-Guided Self-explaining Rationalization

ACL 2024short

Most existing rationalization approaches are susceptible to degeneration accumulation due to a lack of effective control over the learning direction of the model during training. To address this issue, we propose a novel approach AGR (Agent-Guided Rationalization), guiding the next action of the mod…

Cited by 4SourcePDFScholar
2024

FRVA: Fact-Retrieval and Verification Augmented Entailment Tree Generation for Explainable Question Answering

ACL 2024findings

Structured entailment tree can exhibit the reasoning chains from knowledge facts to predicted answers, which is important for constructing an explainable question answering system. Existing works mainly include directly generating the entire tree and stepwise generating the proof steps. The stepwise…

2024

Hyperspherical Multi-Prototype with Optimal Transport for Event Argument Extraction

ACL 2024long

Event Argument Extraction (EAE) aims to extract arguments for specified events from a text. Previous research has mainly focused on addressing long-distance dependencies of arguments, modeling co-occurrence relationships between roles and events, but overlooking potential inductive biases: (i) seman…

2024

Inference Helps PLMs’ Conceptual Understanding: Improving the Abstract Inference Ability with Hierarchical Conceptual Entailment Graphs

EMNLP 2024main

The abstract inference capability of the Language Model plays a pivotal role in boosting its generalization and reasoning prowess in Natural Language Inference (NLI). Entailment graphs are crafted precisely for this purpose, focusing on learning entailment relations among predicates. Yet, prevailing…

2024

InstructEd: Soft-Instruction Tuning for Model Editing with Hops

ACL 2024findings

The task of model editing becomes popular for correcting inaccurate or outdated parametric knowledge in Large Language Models (LLMs). However, there are major limitations of state of the art (SOTA) model editing methods, including the excessive memorization issue caused by the direct editing methods…

2024

Knowledge-Aware Neuron Interpretation for Scene Classification

AAAI 2024technical

Although neural models have achieved remarkable performance, they still encounter doubts due to the intransparency. To this end, model prediction explanation is attracting more and more attentions. However, current methods rarely incorporate external knowledge and still suffer from three limitations…

Cited by 3SourcePDFScholar
2024

SpectralNeRF: Physically Based Spectral Rendering with Neural Radiance Field

AAAI 2024technical

In this paper, we propose SpectralNeRF, an end-to-end Neural Radiance Field (NeRF)-based architecture for high-quality physically based rendering from a novel spectral perspective. We modify the classical spectral rendering into two main steps, 1) the generation of a series of spectrum maps spanning…

2023

Dynamic Heterogeneous-Graph Reasoning with Language Models and Knowledge Representation Learning for Commonsense Question Answering

ACL 2023long

Recently, knowledge graphs (KGs) have won noteworthy success in commonsense question answering. Existing methods retrieve relevant subgraphs in the KGs through key entities and reason about the answer with language models (LMs) and graph neural networks. However, they ignore (i) optimizing the knowl…

Cited by 22SourcePDFScholar
2023

EventOA: An Event Ontology Alignment Benchmark Based on FrameNet and Wikidata

ACL 2023findings

Event ontology provides a shared and formal specification about what happens in the real world and can benefit many natural language understanding tasks. However, the independent development of event ontologies often results in heterogeneous representations that raise the need for establishing align…

Cited by 2SourcePDFScholar
2023

Improving Sequential Model Editing with Fact Retrieval

EMNLP 2023long findings

The task of sequential model editing is to fix erroneous knowledge in Pre-trained Language Models (PLMs) efficiently, precisely and continuously. Although existing methods can deal with a small number of modifications, these methods experience a performance decline or require additional annotated…

Cited by 0SourcecodeScholar
2023

MEFLUT: Unsupervised 1D Lookup Tables for Multi-exposure Image Fusion

ICCV 2023poster

In this paper, we introduce a new approach for high-quality multi-exposure image fusion (MEF). We show that the fusion weights of an exposure can be encoded into a 1D lookup table (LUT), which takes pixel intensity value as input and produces fusion weight as output. We learn one 1D LUT for each exp…

Cited by 19PDFcodeScholar
2023

Multi-view Contrastive Learning for Entity Typing over Knowledge Graphs

EMNLP 2023long main

Knowledge graph entity typing (KGET) aims at inferring plausible types of entities in knowledge graphs. Existing approaches to KGET focus on how to better encode the knowledge provided by the neighbors and types of an entity into its representation. However, they ignore the semantic knowledge provid…

Cited by 0SourcecodeScholar
2023

SIRA-PCR: Sim-to-Real Adaptation for 3D Point Cloud Registration

ICCV 2023poster

Point cloud registration is essential for many applications. However, existing real datasets require extremely tedious and costly annotations, yet may not provide accurate camera poses. For the synthetic datasets, they are mainly object-level, so the trained models may not generalize well to real sc…

Cited by 22PDFcodeScholar
2023

Trigger-Argument based Explanation for Event Detection

ACL 2023findings

Event Detection (ED) is a critical task that aims to identify events of certain types in plain text. Neural models have achieved great success on ED, thus coming with a desire for higher interpretability. Existing works mainly exploit words or phrases of the input text to explain models’ inner mecha…

2022

Transformer-based Entity Typing in Knowledge Graphs

EMNLP 2022main

We investigate the knowledge graph entity typing task which aims at inferring plausible entity types. In this paper, we propose a novel Transformer-based Entity Typing (TET) approach, effectively encoding the content of neighbours of an entity by means of a transformer mechanism. More precisely, TET…

2022

Type-aware Embeddings for Multi-Hop Reasoning over Knowledge Graphs

IJCAI 2022poster

Multi-hop reasoning over real-life knowledge graphs (KGs) is a highly challenging problem as traditional subgraph matching methods are not capable to deal with noise and missing information. Recently, to address this problem a promising approach based on jointly embedding logical queries and KGs in…

2021

A Knowledge-Guided Framework for Frame Identification

ACL 2021long

Frame Identification (FI) is a fundamental and challenging task in frame semantic parsing. The task aims to find the exact frame evoked by a target word in a given sentence. It is generally regarded as a classification task in existing work, where frames are treated as discrete labels or represented…

Cited by 22SourcePDFScholar
2021

Frame Semantic-Enhanced Sentence Modeling for Sentence-level Extractive Text Summarization

EMNLP 2021main

Sentence-level extractive text summarization aims to select important sentences from a given document. However, it is very challenging to model the importance of sentences. In this paper, we propose a novel Frame Semantic-Enhanced Sentence Modeling for Extractive Summarization, which leverages Frame…

Cited by 21SourcePDFScholar
2021

Integrating Semantic Scenario and Word Relations for Abstractive Sentence Summarization

EMNLP 2021main

Recently graph-based methods have been adopted for Abstractive Text Summarization. However, existing graph-based methods only consider either word relations or structure information, which neglect the correlation between them. To simultaneously capture the word relations and structure information fr…

Cited by 23SourcePDFScholar
2020

Incorporating Syntax and Frame Semantics in Neural Network for Machine Reading Comprehension

COLING 2020main

Machine reading comprehension (MRC) is one of the most critical yet challenging tasks in natural language understanding(NLU), where both syntax and semantics information of text are essential components for text understanding. It is surprising that jointly considering syntax and semantics in neural…

Cited by 31SourcePDFScholar