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Autonomous systems (AS) often use Deep Neural Network (DNN) classifiers to allow them to operate in complex, high-dimensional, non-linear, and dynamically changing environments. Due to the complexity of these environments, DNN classifiers…

Machine Learning · Computer Science 2024-08-16 Abanoub Ghobrial , Xuan Zheng , Darryl Hond , Hamid Asgari , Kerstin Eder

Vision-language-action (VLA) models hold promise as generalist robotics solutions by translating visual and linguistic inputs into robot actions, yet they lack reliability due to their black-box nature and sensitivity to environmental…

Robotics · Computer Science 2025-02-10 Hong Lu , Hengxu Li , Prithviraj Singh Shahani , Stephanie Herbers , Matthias Scheutz

Vision-language-action (VLA) models finetuned from vision-language models (VLMs) hold the promise of leveraging rich pretrained representations to build generalist robots across diverse tasks and environments. However, direct fine-tuning on…

Robotics · Computer Science 2025-09-18 Shresth Grover , Akshay Gopalkrishnan , Bo Ai , Henrik I. Christensen , Hao Su , Xuanlin Li

While Vision-Language-Action (VLA) models show strong promise for generalist robot control, it remains unclear whether -- and under what conditions -- the standard "scale data" recipe translates to robotics, where training data is…

Prompt learning has emerged as a powerful paradigm for adapting vision-language models such as CLIP to downstream tasks. However, existing methods often overfit to seen data, leading to significant performance degradation when generalizing…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Niloufar Alipour Talemi , Hossein Kashiani , Hossein R. Nowdeh , Fatemeh Afghah

Reinforcement learning (RL) can enable task-oriented dialogue systems to steer the conversation towards successful task completion. In an end-to-end setting, a response can be constructed in a word-level sequential decision making process…

Computation and Language · Computer Science 2020-11-19 Nurul Lubis , Christian Geishauser , Michael Heck , Hsien-chin Lin , Marco Moresi , Carel van Niekerk , Milica Gašić

Metric learning minimizes the gap between similar (positive) pairs of data points and increases the separation of dissimilar (negative) pairs, aiming at capturing the underlying data structure and enhancing the performance of tasks like…

Sound · Computer Science 2024-04-24 Donghuo Zeng , Yanan Wang , Kazushi Ikeda , Yi Yu

Pre-trained Vision-Language Models (VLMs) exhibit strong generalization capabilities, enabling them to recognize a wide range of objects across diverse domains without additional training. However, they often retain irrelevant information…

Machine Learning · Computer Science 2025-10-10 Kodai Kawamura , Yuta Goto , Rintaro Yanagi , Hirokatsu Kataoka , Go Irie

Vision-and-Language Navigation (VLN) is a realistic but challenging task that requires an agent to locate the target region using verbal and visual cues. While significant advancements have been achieved recently, there are still two broad…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Liuyi Wang , Zongtao He , Jiagui Tang , Ronghao Dang , Naijia Wang , Chengju Liu , Qijun Chen

Many Vision-Language-Action (VLA) models flatten image patches into a 1D token sequence, weakening the 2D spatial cues needed for precise manipulation. We introduce IVRA, a lightweight, training-free method that improves spatial…

Robotics · Computer Science 2026-01-23 Jongwoo Park , Kanchana Ranasinghe , Jinhyeok Jang , Cristina Mata , Yoo Sung Jang , Michael S Ryoo

We propose Context-aware Video-text Alignment (CVA), a novel framework to address a significant challenge in video temporal grounding: achieving temporally sensitive video-text alignment that remains robust to irrelevant background context.…

Machine Learning · Computer Science 2026-03-27 Sungho Moon , Seunghun Lee , Jiwan Seo , Sunghoon Im

Large language models (LLMs) have showcased their capability with few-shot inference known as in-context learning. However, in-domain demonstrations are not always readily available in real scenarios, leading to cross-domain in-context…

Computation and Language · Computer Science 2023-11-21 Quanyu Long , Wenya Wang , Sinno Jialin Pan

Vision-based imitation learning has shown promise for robotic manipulation; however, its generalization remains limited in practical agricultural tasks. This limitation stems from scarce demonstration data and substantial visual domain gaps…

Robotics · Computer Science 2026-03-06 Shun Hattori , Hikaru Sasaki , Takumi Hachimine , Yusuke Mizutani , Takamitsu Matsubara

The single domain generalization(SDG) based on meta-learning has emerged as an effective technique for solving the domain-shift problem. However, the inadequate match of data distribution between source and augmented domains and difficult…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Can Sun , Hao Zheng , Zhigang Hu , Liu Yang , Meiguang Zheng , Bo Xu

Although significant progress has been made in few-shot learning, most of existing few-shot image classification methods require supervised pre-training on a large amount of samples of base classes, which limits their generalization ability…

Computer Vision and Pattern Recognition · Computer Science 2023-01-23 Fang Peng , Xiaoshan Yang , Linhui Xiao , Yaowei Wang , Changsheng Xu

Reinforcement learning (RL) has become a critical paradigm for LLM post-training, yet the rollout phase -- accounting for 50--80% of total step time -- is bottlenecked by skewed generation: long-tailed trajectories indispensable for model…

Embedded numeric anchors on images systematically bias Vision-Language Model quality judgments across six VLMs from five architectural families (ANOVA eta^2 = 0.18-0.77, all p < 0.001). Anchor effects are 2.5x larger than severe image…

Artificial Intelligence · Computer Science 2026-05-13 M. Shalankin

Multimodal biomedical Vision-Language Models (VLMs) exhibit immense potential in the field of Continual Learning (CL). However, they confront a core dilemma: how to preserve fine-grained intra-modality features while bridging the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Zizhi Chen , Yizhen Gao , Minghao Han , Yizhou Liu , Zhaoyu Chen , Dingkang Yang , Lihua Zhang

We present Language-binding Object Graph Network, the first neural reasoning method with dynamic relational structures across both visual and textual domains with applications in visual question answering. Relaxing the common assumption…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Thao Minh Le , Vuong Le , Svetha Venkatesh , Truyen Tran

This work addresses the cross-corpora generalization issue for the low-resourced spoken language identification (LID) problem. We have conducted the experiments in the context of Indian LID and identified strikingly poor cross-corpora…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-02 Spandan Dey , Md Sahidullah , Goutam Saha