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Yaobo Liang

22 accepted papers

2026

HiSpatial: Taming Hierarchical 3D Spatial Understanding in Vision-Language Models

CVPR 2026

Achieving human-like spatial intelligence for vision-language models (VLMs) requires inferring 3D structures from 2D observations, recognizing object properties and relations in 3D space, and performing high-level spatial reasoning. In this paper, we propose a principled hierarchical framework that

Cited by 0SourcecodeScholar
2026

Scalable Vision-Language-Action Model Pretraining for Robotic Dexterous Manipulation with Real-Life Human Activity Videos

ICRA 2026poster

This paper presents an approach for pretraining robotic manipulation Vision-Language-Action (VLA) models using a large corpus of unscripted real-life video recordings of human hand activities. Treating human hand as dexterous robot end-effector, we show that "in-the-wild" egocentric human videos wit…

Cited by 0Scholar
2026

Seeing Across Views: Benchmarking Spatial Reasoning of Vision-Language Models in Robotic Scenes

ICLR 2026poster

Vision-language models (VLMs) are essential to Embodied AI, enabling robots to perceive, reason, and act in complex environments. They also serve as the foundation for the recent Vision-Language-Action (VLA) models. Yet, most evaluations of VLMs focus on single-view settings, leaving their ability t…

Cited by 0SourcecodeScholar
2025

UniGraspTransformer: Simplified Policy Distillation for Scalable Dexterous Robotic Grasping

CVPR 2025poster

We introduce UniGraspTransformer, a universal Transformer-based network for dexterous robotic grasping that simplifies training while enhancing scalability and performance. Unlike prior methods such as UniDexGrasp++, which require complex, multi-step training pipelines, UniGraspTransformer follows a…

2025

VideoVLA: Video Generators Can Be Generalizable Robot Manipulators

NeurIPS 2025poster

Generalization in robot manipulation is essential for deploying robots in open-world environments and advancing toward artificial general intelligence. While recent Vision-Language-Action (VLA) models leverage large pre-trained understanding models for perception and instruction following, their abi…

Cited by 0SourceScholar
2024

AGIEval: A Human-Centric Benchmark for Evaluating Foundation Models

NAACL 2024findings

Assessing foundation models’ abilities for human-level tasks is crucial for Artificial General Intelligence (AGI) development.Traditional benchmarks, which rely on artificial datasets, may not accurately represent these capabilities. In this paper, we introduce AGIEval, a novel bilingual benchmark d…

2024

Competition-Level Problems are Effective LLM Evaluators

ACL 2024findings

Large language models (LLMs) have demonstrated impressive reasoning capabilities, yet there is ongoing debate about these abilities and the potential data contamination problem recently. This paper aims to evaluate the reasoning capacities of LLMs, specifically in solving recent competition-level pr…

Cited by 23SourcePDFScholar
2024

Large Language Models Can Learn Representation in Natural Language

ACL 2024findings

One major challenge for Large Language Models (LLMs) is completing complex tasks involving multiple entities, such as tool APIs. To tackle this, one approach is to retrieve relevant entities to enhance LLMs in task completion. A crucial issue here is obtaining accurate natural language representatio…

2024

Learning to Plan by Updating Natural Language

EMNLP 2024finding

Large Language Models (LLMs) have shown remarkable performance in various basic natural language tasks. For completing the complex task, we still need a plan for the task to guide LLMs to generate the specific solutions step by step. LLMs can directly generate task plans, but these plans may still c…

2024

Low-code LLM: Graphical User Interface over Large Language Models

NAACL 2024system demonstrations

Utilizing Large Language Models (LLMs) for complex tasks is challenging, often involving a time-consuming and uncontrollable prompt engineering process. This paper introduces a novel human-LLM interaction framework, Low-code LLM. It incorporates six types of simple low-code visual programming intera…

2024

Machine-Created Universal Language for Cross-Lingual Transfer

AAAI 2024technical

There are two primary approaches to addressing cross-lingual transfer: multilingual pre-training, which implicitly aligns the hidden representations of various languages, and translate-test, which explicitly translates different languages into an intermediate language, such as English. Translate-tes…

2024

PPTC Benchmark: Evaluating Large Language Models for PowerPoint Task Completion

ACL 2024findings

Recent evaluations of Large Language Models (LLMs) have centered around testing their zero-shot/few-shot capabilities for basic natural language tasks and their ability to translate instructions into tool APIs. However, the evaluation of LLMs utilizing complex tools to finish multi-turn, multi-modal…

2024

PPTC-R benchmark: Towards Evaluating the Robustness of Large Language Models for PowerPoint Task Completion

EMNLP 2024finding

The growing dependence on Large Language Models (LLMs) for finishing user instructions necessitates a comprehensive understanding of their robustness to complex task completion in real-world situations. To address this critical need, we propose the PowerPoint Task Completion-Robustness (PPTC-R) benc…

2023

Analyzing and Reducing the Performance Gap in Cross-Lingual Transfer with Fine-tuning Slow and Fast

ACL 2023long

Existing research has shown that a multilingual pre-trained language model fine-tuned with one (source) language also performs well on downstream tasks for non-source languages, even though no fine-tuning is done on these languages. However, there is a clear gap between the performance of the source…

Cited by 2SourcePDFScholar
2023

Modeling Sequential Sentence Relation to Improve Cross-lingual Dense Retrieval

ICLR 2023poster

Recently multi-lingual pre-trained language models (PLM) such as mBERT and XLM-R have achieved impressive strides in cross-lingual dense retrieval. Despite its successes, they are general-purpose PLM while the multilingual PLM tailored for cross-lingual retrieval is still unexplored. Motivated by an…

2022

Cross-Lingual Ability of Multilingual Masked Language Models: A Study of Language Structure

ACL 2022long

Multilingual pre-trained language models, such as mBERT and XLM-R, have shown impressive cross-lingual ability. Surprisingly, both of them use multilingual masked language model (MLM) without any cross-lingual supervision or aligned data. Despite the encouraging results, we still lack a clear unders…

Cited by 13SourcePDFScholar
2022

Multi-View Document Representation Learning for Open-Domain Dense Retrieval

ACL 2022long

Dense retrieval has achieved impressive advances in first-stage retrieval from a large-scale document collection, which is built on bi-encoder architecture to produce single vector representation of query and document. However, a document can usually answer multiple potential queries from different…

Cited by 65SourcePDFScholar
2022

Unsupervised Context Aware Sentence Representation Pretraining for Multi-lingual Dense Retrieval

IJCAI 2022poster

Recent research demonstrates the effectiveness of using pretrained language models (PLM) to improve dense retrieval and multilingual dense retrieval. In this work, we present a simple but effective monolingual pretraining task called contrastive context prediction (CCP) to learn sentence representat…

2022

XLM-K: Improving Cross-Lingual Language Model Pre-training with Multilingual Knowledge

AAAI 2022technical

Cross-lingual pre-training has achieved great successes using monolingual and bilingual plain text corpora. However, most pre-trained models neglect multilingual knowledge, which is language agnostic but comprises abundant cross-lingual structure alignment. In this paper, we propose XLM-K, a cross-l…

2021

Discovering Representation Sprachbund For Multilingual Pre-Training

EMNLP 2021finding

Multilingual pre-trained models have demonstrated their effectiveness in many multilingual NLP tasks and enabled zero-shot or few-shot transfer from high-resource languages to low-resource ones. However, due to significant typological differences and contradictions between some languages, such model…