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The advancements in automatic text-to-3D generation have been remarkable. Most existing methods use pre-trained text-to-image diffusion models to optimize 3D representations like Neural Radiance Fields (NeRFs) via latent-space denoising…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Junzhe Zhu , Peiye Zhuang , Sanmi Koyejo

Autoregressive models (ARMs) are hindered by slow sequential inference. While masked diffusion models (MDMs) offer a parallel alternative, they suffer from critical drawbacks: high computational overhead from precluding Key-Value (KV)…

计算与语言 · 计算机科学 2026-03-06 Jia-Nan Li , Jian Guan , Wei Wu , Chongxuan Li

The objective of personalization and stylization in text-to-image is to instruct a pre-trained diffusion model to analyze new concepts introduced by users and incorporate them into expected styles. Recently, parameter-efficient fine-tuning…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Likun Li , Haoqi Zeng , Changpeng Yang , Haozhe Jia , Di Xu

Reward models are essential for aligning language model outputs with human preferences, yet existing approaches often lack both controllability and interpretability. These models are typically optimized for narrow objectives, limiting their…

Text-to-3D generation has achieved significant success by incorporating powerful 2D diffusion models, but insufficient 3D prior knowledge also leads to the inconsistency of 3D geometry. Recently, since large-scale multi-view datasets have…

计算机视觉与模式识别 · 计算机科学 2024-05-03 Junyoung Seo , Susung Hong , Wooseok Jang , Inès Hyeonsu Kim , Minseop Kwak , Doyup Lee , Seungryong Kim

Retrieval-augmented large language models (LLMs) leverage relevant content retrieved by information retrieval systems to generate correct responses, aiming to alleviate the hallucination problem. However, existing retriever-responder…

计算与语言 · 计算机科学 2024-06-26 Taolin Zhang , Dongyang Li , Qizhou Chen , Chengyu Wang , Longtao Huang , Hui Xue , Xiaofeng He , Jun Huang

Autoregressive models for text sometimes generate repetitive and low-quality output because errors accumulate during the steps of generation. This issue is often attributed to exposure bias - the difference between how a model is trained,…

计算与语言 · 计算机科学 2024-03-26 Yizhe Zhang , Jiatao Gu , Zhuofeng Wu , Shuangfei Zhai , Josh Susskind , Navdeep Jaitly

We present LTM3D, a Latent Token space Modeling framework for conditional 3D shape generation that integrates the strengths of diffusion and auto-regressive (AR) models. While diffusion-based methods effectively model continuous latent…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Xin Kang , Zihan Zheng , Lei Chu , Yue Gao , Jiahao Li , Hao Pan , Xuejin Chen , Yan Lu

This study presents a generative optimization framework that builds on a fine-tuned diffusion model and reward-directed sampling to generate high-performance engineering designs. The framework adopts a parametric representation of the…

机器学习 · 计算机科学 2025-08-05 Hadi Keramati , Patrick Kirchen , Mohammed Hannan , Rajeev K. Jaiman

We introduce Talk2Move, a reinforcement learning (RL) based diffusion framework for text-instructed spatial transformation of objects within scenes. Spatially manipulating objects in a scene through natural language poses a challenge for…

计算机视觉与模式识别 · 计算机科学 2026-01-09 Jing Tan , Zhaoyang Zhang , Yantao Shen , Jiarui Cai , Shuo Yang , Jiajun Wu , Wei Xia , Zhuowen Tu , Stefano Soatto

When Masked Diffusion Models (MDMs) generate sequences through iterative refinement, the rich internal computation over masked positions is discarded, forcing every subsequent refinement step to recompute the valuable internal information…

Text-to-3D with diffusion models has achieved remarkable progress in recent years. However, existing methods either rely on score distillation-based optimization which suffer from slow inference, low diversity and Janus problems, or are…

计算机视觉与模式识别 · 计算机科学 2023-11-27 Jiahao Li , Hao Tan , Kai Zhang , Zexiang Xu , Fujun Luan , Yinghao Xu , Yicong Hong , Kalyan Sunkavalli , Greg Shakhnarovich , Sai Bi

Human motion generation is a challenging task due to its high dimensionality and the difficulty of generating fine-grained motions. Diffusion methods have been proposed due to their high sample quality and expressiveness. Early approaches…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Mirgahney Mohamed , Harry Jake Cunningham , Marc P. Deisenroth , Lourdes Agapito

Large kernel convolutions offer a scalable alternative to vision transformers for high-resolution 3D volumetric analysis, yet naively increasing kernel size often leads to optimization instability. Motivated by the spatial bias inherent in…

计算机视觉与模式识别 · 计算机科学 2026-02-02 Ho Hin Lee , Quan Liu , Shunxing Bao , Yuankai Huo , Bennett A. Landman

An authentic face restoration system is becoming increasingly demanding in many computer vision applications, e.g., image enhancement, video communication, and taking portrait. Most of the advanced face restoration models can recover…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Yang Zhao , Tingbo Hou , Yu-Chuan Su , Xuhui Jia. Yandong Li , Matthias Grundmann

Large Language Model (LLM) based code generation is predominantly formulated as a strictly monotonic process, appending tokens linearly to an immutable prefix. This formulation contrasts to the cognitive process of programming, which is…

软件工程 · 计算机科学 2026-05-07 Chengran Yang , Zichao Wei , Heminghao Deng , Jinfeng Jiang , Zhensu Sun , Ting Zhang , Tianyi Wu , Ming Wen , David Lo

Masked diffusion models (MDM) are powerful generative models for discrete data that generate samples by progressively unmasking tokens in a sequence. Each token can take one of two states: masked or unmasked. We observe that token sequences…

机器学习 · 计算机科学 2025-10-23 Chen-Hao Chao , Wei-Fang Sun , Hanwen Liang , Chun-Yi Lee , Rahul G. Krishnan

3D human motion generation is crucial for creative industry. Recent advances rely on generative models with domain knowledge for text-driven motion generation, leading to substantial progress in capturing common motions. However, the…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Mingyuan Zhang , Xinying Guo , Liang Pan , Zhongang Cai , Fangzhou Hong , Huirong Li , Lei Yang , Ziwei Liu

The text retrieval is the task of retrieving similar documents to a search query, and it is important to improve retrieval accuracy while maintaining a certain level of retrieval speed. Existing studies have reported accuracy improvements…

信息检索 · 计算机科学 2023-11-15 Yuichi Sasazawa , Kenichi Yokote , Osamu Imaichi , Yasuhiro Sogawa

Traditional recommendation systems often grapple with "filter bubbles", underutilization of external knowledge, and a disconnect between model optimization and business policy iteration. To address these limitations, this paper introduces…

人工智能 · 计算机科学 2025-06-25 Yu Xie , Xingkai Ren , Ying Qi , Yao Hu , Lianlei Shan