Andreas Geiger

Publications of Yong Cao

UniComp: A Unified Evaluation of Large Language Model Compression via Pruning, Quantization, and Distillation
J. Rad, Y. Cao and A. Geiger
Conference on Empirical Methods in Natural Language Processing (EMNLP), 2026
Abstract: Model compression is increasingly essential for deploying large language models (LLMs), yet existing comparative studies largely focus on pruning and quantization evaluated primarily on knowledge-centric benchmarks. Thus, we introduce UniComp, a unified evaluation framework for comparing pruning, quantization, and knowledge distillation. UniComp evaluates compressed models along three dimensions: performance, reliability, and efficiency, using a diverse set of capability- and safety-oriented benchmarks together with a hardware-aware efficiency analysis. Through evaluation of seven compression techniques across over 40 datasets, we observe (i) a consistent knowledge bias, where factual recall is largely preserved while multi-step reasoning, multilingual, and instruction-following capabilities degrade; (ii) a deployment-critical performance-reliability decoupling, where retained performance does not indicate preserved safety, fairness and privacy; and (iii) that task-specific calibration can yield up to 50% relative improvement in reasoning performance in pruned models.
Latex Bibtex Citation:
@inproceedings{Rad2026EMNLP,
  author = {Jonathan Rad and Yong Cao and Andreas Geiger},
  title = {UniComp: A Unified Evaluation of Large Language Model Compression via Pruning, Quantization, and Distillation},
  booktitle = {Conference on Empirical Methods in Natural Language Processing (EMNLP)},
  year = {2026}
}
FrankenMotion: Part-level Human Motion Generation and Composition
C. Li, X. Xie, Y. Cao, A. Geiger and G. Pons-Moll
Conference on Computer Vision and Pattern Recognition (CVPR), 2026
Abstract: Human motion generation from text prompts has made remarkable progress in recent years. However, existing methods primarily rely on either sequence-level or action-level descriptions due to the absence of fine-grained, part-level motion annotations. This limits their controllability over individual body parts. In this work, we construct a high-quality motion dataset with atomic, temporally-aware part-level text annotations, leveraging the reasoning capabilities of large language models (LLMs). Unlike prior datasets that either provide synchronized part captions with fixed time segments or rely solely on global sequence labels, our dataset captures asynchronous and semantically distinct part movements at fine temporal resolution. Based on this dataset, we introduce a diffusion-based part-aware motion generation framework, namely FrankenMotion, where each body part is guided by its own temporally-structured textual prompt. This is, to our knowledge, the first work to provide atomic, temporally-aware part-level motion annotations and have a model that allows motion generation with both spatial (body part) and temporal (atomic action) control. Experiments demonstrate that FrankenMotion outperforms all previous baseline models adapted and retrained for our setting, and our model can compose motions unseen during training. Our code and dataset will be publicly available upon publication.
Latex Bibtex Citation:
@inproceedings{Li2026CVPR,
  author = {Chuqiao Li and Xianghui Xie and Yong Cao and Andreas Geiger and Gerard Pons-Moll},
  title = {FrankenMotion: Part-level Human Motion Generation and Composition},
  booktitle = {Conference on Computer Vision and Pattern Recognition (CVPR)},
  year = {2026}
}
Transforming Science with Large Language Models: A Survey on AI-assisted Scientific Discovery, Experimentation, ...
S. Eger, Y. Cao, J. D'Souza, A. Geiger, C. Greisinger, S. Gross, Y. Hou, B. Krenn, A. Lauscher, Y. Li, et al.
Arxiv, 2025
Abstract: With the advent of large multimodal language models, science is now at a threshold of an AI-based technological transformation. Recently, a plethora of new AI models and tools has been proposed, promising to empower researchers and academics worldwide to conduct their research more effectively and efficiently. This includes all aspects of the research cycle, especially (1) searching for relevant literature; (2) generating research ideas and conducting experimentation; generating (3) text-based and (4) multimodal content (e.g., scientific figures and diagrams); and (5) AI-based automatic peer review. In this survey, we provide an in-depth overview over these exciting recent developments, which promise to fundamentally alter the scientific research process for good. Our survey covers the five aspects outlined above, indicating relevant datasets, methods and results (including evaluation) as well as limitations and scope for future research. Ethical concerns regarding shortcomings of these tools and potential for misuse (fake science, plagiarism, harms to research integrity) take a particularly prominent place in our discussion. We hope that our survey will not only become a reference guide for newcomers to the field but also a catalyst for new AI-based initiatives in the area of "AI4Science".
Latex Bibtex Citation:
@article{Eger2025ARXIV,
  author = {Steffen Eger and Yong Cao and Jennifer D'Souza and Andreas Geiger and Christian Greisinger and Stephanie Gross and Yufang Hou and Brigitte Krenn and Anne Lauscher and Yizhi Li and Chenghua Lin and Nafise Sadat Moosavi and Wei Zhao and Tristan Miller},
  title = {Transforming Science with Large Language Models: A Survey on AI-assisted Scientific Discovery, Experimentation, Content Generation, and Evaluation},
  journal = {Arxiv},
  year = {2025}
}
MDPO: Overcoming the Training-Inference Divide of Masked Diffusion Language Models
H. He, K. Renz, Y. Cao and A. Geiger
Arxiv, 2025
Abstract: Diffusion language models, as a promising alternative to traditional autoregressive (AR) models, enable faster generation and richer conditioning on bidirectional context. However, they suffer from a key discrepancy between training and inference: during inference, MDLMs progressively reveal the structure of the generated sequence by producing fewer and fewer masked tokens, whereas this structure is ignored in training as tokens are masked at random. Although this discrepancy between training and inference can lead to suboptimal performance, it has been largely overlooked by previous works, leaving closing this gap between the two stages an open problem. To address this, we frame the problem of learning effective denoising trajectories as a sequential decision-making problem and use the resulting framework to apply reinforcement learning. We propose a novel Masked Diffusion Policy Optimization (MDPO) to exploit the Markov property diffusion possesses and explicitly train the model under the same progressive refining schedule used at inference. MDPO matches the performance of the previous state-of-the-art (SOTA) method with 60x fewer gradient updates, while achieving average improvements of 9.6% on MATH500 and 54.2% on Countdown over SOTA when trained within the same number of weight updates. Additionally, we improve the remasking strategy of MDLMs as a plug-in inference replacement to overcome the limitation that the model cannot refine tokens flexibly. This training-free method, termed Running Confidence Remasking (RCR), consistently enhances performance and provides further improvements when used with MDPO. Our findings establish great potential for investigating the discrepancy between pre-training and inference of MDLMs. Code: https://github.com/autonomousvision/mdpo. Project Page: https://cli212.github.io/MDPO/.
Latex Bibtex Citation:
@article{He2025ARXIV,
  author = {Haoyu He and Katrin Renz and Yong Cao and Andreas Geiger},
  title = {MDPO: Overcoming the Training-Inference Divide of Masked Diffusion Language Models},
  journal = {Arxiv},
  year = {2025}
}
Scholar Inbox: Personalized Paper Recommendations for Scientists
M. Flicke, G. Angrabeit, M. Iyengar, V. Protsenko, I. Shakun, J. Cicvaric, B. Kargi, H. He, L. Schuler, L. Scholz, et al.
Annual Meeting of the Association for Computational Linguistics (ACL), System Demonstrations, 2025
Abstract: Scholar Inbox is a new open-access platform designed to address the challenges researchers face in staying current with the rapidly expanding volume of scientific literature. We provide personalized recommendations, continuous updates from open-access archives (arXiv, bioRxiv, etc.), visual paper summaries, semantic search, and a range of tools to streamline research workflows and promote open research access. The platform's personalized recommendation system is trained on user ratings, ensuring that recommendations are tailored to individual researchers' interests. To further enhance the user experience, Scholar Inbox also offers a map of science that provides an overview of research across domains, enabling users to easily explore specific topics. We use this map to address the cold start problem common in recommender systems, as well as an active learning strategy that iteratively prompts users to rate a selection of papers, allowing the system to learn user preferences quickly. We evaluate the quality of our recommendation system on a novel dataset of 800k user ratings, which we make publicly available, as well as via an extensive user study. https://www.scholar-inbox.com/
Latex Bibtex Citation:
@inproceedings{Flicke2025ACLSDT,
  author = {Markus Flicke and Glenn Angrabeit and Madhav Iyengar and Vitalii Protsenko and Illia Shakun and Jovan Cicvaric and Bora Kargi and Haoyu He and Lukas Schuler and Lewin Scholz and Kavyanjali Agnihotri and Yong Cao and Andreas Geiger},
  title = {Scholar Inbox: Personalized Paper Recommendations for Scientists},
  booktitle = {Annual Meeting of the Association for Computational Linguistics (ACL), System Demonstrations},
  year = {2025}
}


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