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The Smatch metric is a popular method for evaluating graph distances, as is necessary, for instance, to assess the performance of semantic graph parsing systems. However, we observe some issues in the metric that jeopardize meaningful…

Computation and Language · Computer Science 2025-10-17 Juri Opitz

Evaluating multi-turn dialogue systems remains challenging because response quality depends not only on the current prompt, but also on previously established entities, claims, and conversational commitments. Existing automatic evaluators,…

Computation and Language · Computer Science 2026-05-19 Avijit Shil , Suman Samui

While Unified Multimodal Models (UMMs) have achieved remarkable success in cross-modal comprehension, a significant gap persists in their ability to leverage such internal knowledge for high-quality generation. We formalize this discrepancy…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Ruiyan Han , Zhen Fang , XinYu Sun , Yuchen Ma , Ziheng Wang , Yu Zeng , Zehui Chen , Lin Chen , Wenxuan Huang , Wei-Jie Xu , Yi Cao , Feng Zhao

In this paper, we introduce SemHiTok, a unified image Tokenizer via Semantic-Guided Hierarchical codebook that provides consistent discrete representations for multimodal understanding and generation. Recently, unified image tokenizers have…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Zisheng Chen , Chunwei Wang , Runhui Huang , Hongbin Xu , Xiuwei Chen , Jun Zhou , Jianhua Han , Hang Xu , Xiaodan Liang

Generative diffusion models are developing rapidly and attracting increasing attention due to their wide range of applications. Image-to-Video (I2V) generation has become a major focus in the field of video synthesis. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Ailing Zhang , Lina Lei , Dehong Kong , Zhixin Wang , Jiaqi Xu , Fenglong Song , Chun-Le Guo , Chang Liu , Fan Li , Jie Chen

Many image-to-image (I2I) translation problems are in nature of high diversity that a single input may have various counterparts. Prior works proposed the multi-modal network that can build a many-to-many mapping between two visual domains.…

Computer Vision and Pattern Recognition · Computer Science 2019-10-07 Jialu Huang , Jing Liao , Tak Wu Sam Kwong

A dialogue is essentially a multi-turn interaction among interlocutors. Effective evaluation metrics should reflect the dynamics of such interaction. Existing automatic metrics are focused very much on the turn-level quality, while ignoring…

Computation and Language · Computer Science 2021-06-08 Chen Zhang , Yiming Chen , Luis Fernando D'Haro , Yan Zhang , Thomas Friedrichs , Grandee Lee , Haizhou Li

Semantic communications have shown promising advancements by optimizing source and channel coding jointly. However, the dynamics of these systems remain understudied, limiting research and performance gains. Inspired by the robustness of…

Signal Processing · Electrical Eng. & Systems 2026-04-29 Hanju Yoo , Linglong Dai , Songkuk Kim , Chan-Byoung Chae

Unified multimodal models integrate the reasoning capacity of large language models with both image understanding and generation, showing great promise for advanced multimodal intelligence. However, the community still lacks a rigorous…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Hongxiang Li , Yaowei Li , Bin Lin , Yuwei Niu , Yuhang Yang , Xiaoshuang Huang , Jiayin Cai , Xiaolong Jiang , Yao Hu , Long Chen

Automating Text-to-Image (T2I) model evaluation is challenging; a judge model must be used to score correctness, and test prompts must be selected to be challenging for current T2I models but not the judge. We argue that satisfying these…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Amita Kamath , Kai-Wei Chang , Ranjay Krishna , Luke Zettlemoyer , Yushi Hu , Marjan Ghazvininejad

Unified Multimodal Large Language Models (MLLMs) require a visual representation that simultaneously supports high-fidelity reconstruction, complex semantic extraction, and generative suitability. However, existing visual tokenizers…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Shaobin Zhuang , Yuang Ai , Jiaming Han , Weijia Mao , Xiaohui Li , Fangyikang Wang , Xiao Wang , Yan Li , Shanchuan Lin , Kun Xu , Zhenheng Yang , Huaibo Huang , Xiangyu Yue , Hao Chen , Yali Wang

The success of building textless speech-to-speech translation (S2ST) models has attracted much attention. However, S2ST still faces two main challenges: 1) extracting linguistic features for various speech signals, called cross-modal (CM),…

Computation and Language · Computer Science 2025-05-22 Yuhao Zhang , Xiangnan Ma , Kaiqi Kou , Peizhuo Liu , Weiqiao Shan , Benyou Wang , Tong Xiao , Yuxin Huang , Zhengtao Yu , Jingbo Zhu

Inspired by the activity-silent and persistent activity mechanisms in human visual perception biology, we design a Unified Static and Dynamic Network (UniSDNet), to learn the semantic association between the video and text/audio queries in…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Jingjing Hu , Dan Guo , Kun Li , Zhan Si , Xun Yang , Xiaojun Chang , Meng Wang

Tactile Internet (TI) requires ultra-low latency and high reliability to ensure stability and transparency in touch-enabled teleoperation. However, variable delays and packet loss present significant challenges to maintaining immersive…

Signal Processing · Electrical Eng. & Systems 2026-01-27 Mohammad Ali Vahedifar , Qi Zhang

We present the Universal Latent Homeomorphic Manifold (ULHM), a framework that unifies semantic representations (e.g., human descriptions, diagnostic labels) and observation-driven machine representations (e.g., pixel intensities, sensor…

Image and Video Processing · Electrical Eng. & Systems 2026-02-05 Tong Wu , Tayab Uddin Wara , Daniel Hernandez , Sidong Lei

Simulated Moving Bed (SMB) chromatography is a well-known technique for the resolution of several high-value-added compounds. Parameters identification and model topology definition are arduous when one is dealing with complex systems such…

In Simultaneous Localization and Mapping (SLAM), Loop Closure Detection (LCD) is essential to minimize drift when recognizing previously visited places. Visual Bag-of-Words (vBoW) has been an LCD algorithm of choice for many…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Jonathan J. Y. Kim , Martin Urschler , Patricia J. Riddle , Jörg S. Wicker

Non-ideal measurement computed tomography (NICT), which lowers radiation at the cost of image quality, is expanding the clinical use of CT. Although unified models have shown promise in NICT enhancement, most methods require paired data,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Fengzhi Xu , Ziyuan Yang , Zexin Lu , Yingyu Chen , Fenglei Fan , Hongming Shan , Yi Zhang

Diffusion models have recently achieved remarkable advancements in terms of image quality and fidelity to textual prompts. Concurrently, the safety of such generative models has become an area of growing concern. This work introduces a…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Tong Liu , Zhixin Lai , Jiawen Wang , Gengyuan Zhang , Shuo Chen , Philip Torr , Vera Demberg , Volker Tresp , Jindong Gu

Vision-Language Models (VLMs) are increasingly deployed in autonomous driving and embodied AI systems, where reliable perception is critical for safe semantic reasoning and decision-making. While recent VLMs demonstrate strong performance…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Guo Cheng