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Yitong Li

50 accepted papers

2026

Captain Safari: A World Engine with Pose-Aligned 3D Memory

CVPR 2026

World engines aim to synthesize long, 3D-consistent videos that support interactive exploration of a scene under user-controlled camera motion. However, existing systems struggle under aggressive 6-DoF trajectories and complex outdoor layouts: they lose long-range geometric coherence, deviate from t

Cited by 0SourcecodeScholar
2026

HardcoreLogic: Challenging Large Reasoning Models with Long-tail Logic Puzzle Games

ICLR 2026poster

Large Reasoning Models (LRMs) have demonstrated impressive performance on complex tasks, including logical puzzle games that require deriving solutions satisfying all constraints. However, whether they can flexibly apply appropriate rules to varying conditions, particularly when faced with non-canon…

Cited by 0SourceScholar
2026

Not All Models Suit Expert Offloading: On Local Routing Consistency of Mixture-of-Expert Models

ICLR 2026poster

Mixture-of-Experts (MoE) enables efficient scaling of large language models (LLMs) with sparsely activated experts during inference. To effectively deploy large MoE models on memory-constrained devices, many systems introduce expert offloading which caches a subset of experts in fast memory, leaving…

Cited by 0SourcecodeScholar
2026

Real Garment Benchmark (RGBench): A Comprehensive Benchmark for Robotic Garment Manipulation Featuring a High-Fidelity Scalable Simulator

AAAI 2026technical

While there has been significant progress to use simulated data to learn robotic manipulation of rigid objects, applying its success to deformable objects has been hindered by the lack of both deformable object models and realistic non-rigid body simulators. In this paper, we present Real Garment Be

Cited by 0SourcePDFScholar
2025

AmorLIP: Efficient Language-Image Pretraining via Amortization

NeurIPS 2025poster

Contrastive Language-Image Pretraining (CLIP) has demonstrated strong zero-shot performance across diverse downstream text-image tasks. Existing CLIP methods typically optimize a contrastive objective using negative samples drawn from each minibatch. To achieve robust representation learning, these…

Cited by 0SourcecodeScholar
2025

CodeDiffuser: Attention-Enhanced Diffusion Policy via VLM-Generated Code for Instruction Ambiguity

RSS 2025poster

Natural language instructions for robotic manipulation tasks often exhibit ambiguity and vagueness. For instance, the instruction “Hang a mug on the mug tree” may involve multiple valid actions if there are several mugs and branches to choose from. Existing language-conditioned policies typically re…

Cited by 0PDFScholar
2025

Step Guided Reasoning: Improving Mathematical Reasoning using Guidance Generation and Step Reasoning

EMNLP 2025

Mathematical reasoning has been challenging for large language models (LLMs), and the introduction of step-by-step Chain-of-Thought (CoT) inference has significantly advanced the mathematical capabilities of LLMs. However, current approaches either necessitate extensive inference datasets for traini

Cited by 0SourcePDFScholar
2025

VLR-Driver: Large Vision-Language-Reasoning Models for Embodied Autonomous Driving

ICCV 2025poster

The rise of embodied intelligence and multi-modal large language models has led to exciting advancements in the field of autonomous driving, establishing it as a prominent research focus in both academia and industry. However, when confronted with intricate and ambiguous traffic scenarios, the lack…

Cited by 0SourcePDFScholar
2025

Vision‑Language‑Vision Auto‑Encoder: Scalable Knowledge Distillation from Diffusion Models

NeurIPS 2025poster

Building state-of-the-art Vision-Language Models (VLMs) with strong captioning capabilities typically necessitates training on billions of high-quality image-text pairs, requiring millions of GPU hours. This paper introduces the Vision-Language-Vision **(VLV)** auto-encoder framework, which strategi…

Cited by 0SourceScholar
2024

A Unified Temporal Knowledge Graph Reasoning Model Towards Interpolation and Extrapolation

ACL 2024long

Temporal knowledge graph (TKG) reasoning has two settings: interpolation reasoning and extrapolation reasoning. Both of them draw plenty of research interest and have great significance. Methods of the former de-emphasize the temporal correlations among facts sequences, while methods of the latter r…

2024

Beyond Static Evaluation: A Dynamic Approach to Assessing AI Assistants’ API Invocation Capabilities

COLING 2024main

With the rise of Large Language Models (LLMs), AI assistants’ ability to utilize tools, especially through API calls, has advanced notably. This progress has necessitated more accurate evaluation methods. Many existing studies adopt static evaluation, where they assess AI assistants’ API call based…

2024

Broadcasting Support Relations Recursively from Local Dynamics for Object Retrieval in Clutters

RSS 2024poster

In our daily life, cluttered objects are everywhere, from scattered stationery and books cluttering the table to bowls and plates filling the kitchen sink. Retrieving a target object from clutters is an essential while challenging skill for robots, for the difficulty of safely manipulating an object…

Cited by 5SourcePDFScholar
2024

Concise and Precise Context Compression for Tool-Using Language Models

ACL 2024findings

Through reading the documentation in the context, tool-using language models can dynamically extend their capability using external tools. The cost is that we have to input lengthy documentation every time the model needs to use the tool, occupying the input window as well as slowing down the decodi…

2024

Diffusion Spectral Representation for Reinforcement Learning

NeurIPS 2024poster

Diffusion-based models have achieved notable empirical successes in reinforcement learning (RL) due to their expressiveness in modeling complex distributions. Despite existing methods being promising, the key challenge of extending existing methods for broader real-world applications lies in the com…

Cited by 1SourcePDFScholar
2024

Dynamic Stochastic Decoding Strategy for Open-Domain Dialogue Generation

ACL 2024findings

Stochastic sampling strategies such as top-k and top-p have been widely used in dialogue generation task. However, as an open-domain chatting system, there will be two different conversation scenarios, i.e. chit-chat and knowledge-based question answering. In the former situation, responses diversit…

2024

GarmentLab: A Unified Simulation and Benchmark for Garment Manipulation

NeurIPS 2024poster

Manipulating garments and fabrics has long been a critical endeavor in the development of home-assistant robots. However, due to complex dynamics and topological structures, garment manipulations pose significant challenges. Recent successes in reinforcement learning and vision-based methods offer p…

2024

Harnessing the Power of SVD: An SVA Module for Enhanced Signal Classification

AAAI 2024technical

Deep learning methods have achieved outstanding performance in various signal tasks. However, due to degraded signals in real electromagnetic environment, it is crucial to seek methods that can improve the representation of signal features. In this paper, a Singular Value decomposition-based Attenti…

Cited by 2SourcePDFScholar
2024

KEEP CHATTING! An Attractive Dataset for Continuous Conversation Agents

ACL 2024findings

Ongoing chatting is an important step for conversational agents to build long-term connections with people. However, people tend to quickly lose interest in chatting if the conversational agent’s words are not engaging enough. In this paper, we present a novel task of increasing users’ willingness t…

Cited by 0SourcePDFScholar
2024

More than Minorities and Majorities: Understanding Multilateral Bias in Language Generation

ACL 2024findings

Pretrained models learned from real corpora can often capture undesirable features, leading to bias issues against different demographic groups. Most existing studies on bias dataset construction or bias mitigation methods only focus on one demographic group pair to study a certain bias, e.g. black…

Cited by 0SourcePDFScholar
2024

ProgGen: Generating Named Entity Recognition Datasets Step-by-step with Self-Reflexive Large Language Models

ACL 2024findings

Although Large Language Models (LLMs) exhibit remarkable adaptability across domains, these models often fall short in structured knowledge extraction tasks such as named entity recognition (NER). This paper explores an innovative, cost-efficient strategy to harness LLMs with modest NER capabilities…

2024

Stable-Pose: Leveraging Transformers for Pose-Guided Text-to-Image Generation

NeurIPS 2024poster

Controllable text-to-image (T2I) diffusion models have shown impressive performance in generating high-quality visual content through the incorporation of various conditions. Current methods, however, exhibit limited performance when guided by skeleton human poses, especially in complex pose conditi…

2024

Unveiling the Spectrum of Data Contamination in Language Model: A Survey from Detection to Remediation

ACL 2024findings

Data contamination has garnered increased attention in the era of Large language models (LLMs) due to the reliance on extensive internet-derived training corpora. The issue of training corpus overlap with evaluation benchmarks—referred to as contamination—has been the focus of significant recent res…

Cited by 10SourcePDFScholar
2023

A Synthetic Data Generation Framework for Grounded Dialogues

ACL 2023long

Training grounded response generation models often requires a large collection of grounded dialogues. However, it is costly to build such dialogues. In this paper, we present a synthetic data generation framework (SynDG) for grounded dialogues. The generation process utilizes large pre-trained langu…

2023

CHBias: Bias Evaluation and Mitigation of Chinese Conversational Language Models

ACL 2023long

redWarning: This paper contains content that may be offensive or upsetting.Pretrained conversational agents have been exposed to safety issues, exhibiting a range of stereotypical human biases such as gender bias. However, there are still limited bias categories in current research, and most of them…

2023

History, Present and Future: Enhancing Dialogue Generation with Few-Shot History-Future Prompt

ICASSP 2023accepted

Dialogue history and response in open-domain dialogue are loosely coupled. Generating informative responses solely based on the original dialogue history is not easy, as dialogue history may not contain enough information or it may contain irrelevant noises. Intuitively, if a generation model can fo…

Cited by 0SourceScholar
2023

KPT: Keyword-Guided Pre-training for Grounded Dialog Generation

AAAI 2023technical

Incorporating external knowledge into the response generation process is essential to building more helpful and reliable dialog agents. However, collecting knowledge-grounded conversations is often costly, calling for a better pre-trained model for grounded dialog generation that generalizes well w.…

Cited by 3SourcePDFScholar
2023

On the Importance of Accurate Geometry Data for Dense 3D Vision Tasks

CVPR 2023poster

Learning-based methods to solve dense 3D vision problems typically train on 3D sensor data. The respectively used principle of measuring distances provides advantages and drawbacks. These are typically not compared nor discussed in the literature due to a lack of multi-modal datasets. Texture-less r…

2023

ReSee: Responding through Seeing Fine-grained Visual Knowledge in Open-domain Dialogue

EMNLP 2023long main

Incorporating visual knowledge into text-only dialogue systems has become a potential direction to imitate the way humans think, imagine, and communicate. However, existing multimodal dialogue systems are either confined by the scale and quality of available datasets or the coarse concept of visual…

Cited by 0SourcecodeScholar
2023

Retrieval-free Knowledge Injection through Multi-Document Traversal for Dialogue Models

ACL 2023long

Dialogue models are often enriched with extensive external knowledge to provide informative responses through a retrieval-augmented pipeline. Nevertheless, retrieval-augmented approaches rely on finely annotated retrieval training data and knowledge-grounded response generation data, making it costl…

2023

Towards Diverse, Relevant and Coherent Open-Domain Dialogue Generation via Hybrid Latent Variables

AAAI 2023technical

Conditional variational models, using either continuous or discrete latent variables, are powerful for open-domain dialogue response generation. However, previous works show that continuous latent variables tend to reduce the coherence of generated responses. In this paper, we also found that discre…

Cited by 6SourcePDFScholar
2023

Towards Fewer Hallucinations in Knowledge-Grounded Dialogue Generation via Augmentative and Contrastive Knowledge-Dialogue

ACL 2023short

Existing knowledge-grounded open-domain dialogue generation models often face the hallucination problem, i.e. the dialogue generative model will persist in an inappropriate knowledge and generate responses that inconsistent with the facts. We argue that this problem mainly stems from the polarized o…

Cited by 5SourcePDFScholar
2022

AEG: Argumentative Essay Generation via A Dual-Decoder Model with Content Planning

EMNLP 2022main

Argument generation is an important but challenging task in computational argumentation.Existing studies have mainly focused on generating individual short arguments, while research on generating long and coherent argumentative essays is still under-explored.In this paper, we propose a new task, Arg…

Cited by 9SourcePDFScholar
2022

CINS: Comprehensive Instruction for Few-Shot Learning in Task-Oriented Dialog Systems

AAAI 2022technical

As the labeling cost for different modules in task-oriented dialog (ToD) systems is high, a major challenge is to learn different tasks with the least amount of labeled data. Recently, pre-trained language models (PLMs) have shown promising results for few-shot learning in ToD. To better utilize the…

Cited by 44SourcePDFScholar
2022

Compilable Neural Code Generation with Compiler Feedback

ACL 2022findings

Automatically generating compilable programs with (or without) natural language descriptions has always been a touchstone problem for computational linguistics and automated software engineering. Existing deep-learning approaches model code generation as text generation, either constrained by gramma…

Cited by 73SourcePDFScholar
2022

Modeling Complex Dialogue Mappings via Sentence Semantic Segmentation Guided Conditional Variational Auto-Encoder

EMNLP 2022finding

Complex dialogue mappings (CDM), including one-to-many and many-to-one mappings, tend to make dialogue models generate incoherent or dull responses, and modeling these mappings remains a huge challenge for neural dialogue systems. To alleviate these problems, methods like introducing external inform…

Cited by 1SourcePDFScholar
2022

Pan More Gold from the Sand: Refining Open-domain Dialogue Training with Noisy Self-Retrieval Generation

COLING 2022main

Real human conversation data are complicated, heterogeneous, and noisy, from which building open-domain dialogue systems remains a challenging task. In fact, such dialogue data still contains a wealth of information and knowledge, however, they are not fully explored. In this paper, we show existing…

2022

PhoCaL: A Multi-Modal Dataset for Category-Level Object Pose Estimation With Photometrically Challenging Objects

CVPR 2022poster

Object pose estimation is crucial for robotic applications and augmented reality. Beyond instance level 6D object pose estimation methods, estimating category-level pose and shape has become a promising trend. As such, a new research field needs to be supported by well-designed datasets. To provide…

Cited by 54PDFScholar
2022

Polarimetric Pose Prediction

ECCV 2022poster

"Light has many properties that vision sensors can passively measure. Colour-band separated wavelength and intensity are arguably the most commonly used for monocular 6D object pose estimation. This paper explores how complementary polarisation information, i.e. the orientation of light wave oscilla…

Cited by 33SourcePDFScholar
2022

RotateQVS: Representing Temporal Information as Rotations in Quaternion Vector Space for Temporal Knowledge Graph Completion

ACL 2022long

Temporal factors are tied to the growth of facts in realistic applications, such as the progress of diseases and the development of political situation, therefore, research on Temporal Knowledge Graph (TKG) attracks much attention. In TKG, relation patterns inherent with temporality are required to…

2022

Towards Identifying Social Bias in Dialog Systems: Framework, Dataset, and Benchmark

EMNLP 2022finding

Among all the safety concerns that hinder the deployment of open-domain dialog systems (e.g., offensive languages, biases, and toxic behaviors), social bias presents an insidious challenge. Addressing this challenge requires rigorous analyses and normative reasoning. In this paper, we focus our inve…

2021

Two-stream 2D/3D Residual Networks for Learning Robot Manipulations from Human Demonstration Videos

ICRA 2021poster

Learning manipulation skills from observing human demonstration videos is a promising aspect for intelligent robotic systems. Recent advances in video to command provide an end-to-end approach to translate a video into robot plans. However, the general video captioning methods focus more on the unde…

Cited by 9SourceScholar
2021

Uncertainty-Aware Balancing for Multilingual and Multi-Domain Neural Machine Translation Training

EMNLP 2021main

Learning multilingual and multi-domain translation model is challenging as the heterogeneous and imbalanced data make the model converge inconsistently over different corpora in real world. One common practice is to adjust the share of each corpus in the training, so that the learning process is bal…

Cited by 16SourcePDFScholar
2019

Kernel-Based Approaches for Sequence Modeling: Connections to Neural Methods

NeurIPS 2019poster

We investigate time-dependent data analysis from the perspective of recurrent kernel machines, from which models with hidden units and gated memory cells arise naturally. By considering dynamic gating of the memory cell, a model closely related to the long short-term memory (LSTM) recurrent neural n…

2019

On Target Shift in Adversarial Domain Adaptation

AISTATS 2019poster

Discrepancy between training and testing domains is a fundamental problem in the generalization of machine learning techniques. Recently, several approaches have been proposed to learn domain invariant feature representations through adversarial deep learning. However, label shift, where the percen…

Cited by 40SourcePDFScholar
2019

StoryGAN: A Sequential Conditional GAN for Story Visualization

CVPR 2019poster

In this work, we propose a new task called Story Visualization. Given a multi-sentence paragraph, the story is visualized by generating a sequence of images, one for each sentence. In contrast to video generation, story visualization focuses less on the continuity in generated images (frames), but m…

Cited by 280PDFcodeScholar
2018

Extracting Relationships by Multi-Domain Matching

NeurIPS 2018poster

In many biological and medical contexts, we construct a large labeled corpus by aggregating many sources to use in target prediction tasks. Unfortunately, many of the sources may be irrelevant to our target task, so ignoring the structure of the dataset is detrimental. This work proposes a novel a…

Cited by 124SourcePDFScholar
2017

Targeting EEG/LFP Synchrony with Neural Nets

NeurIPS 2017spotlight

We consider the analysis of Electroencephalography (EEG) and Local Field Potential (LFP) datasets, which are “big” in terms of the size of recorded data but rarely have sufficient labels required to train complex models (e.g., conventional deep learning methods). Furthermore, in many scientific app…

Cited by 81SourcePDFScholar