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This study introduces Bidirectional Topic Matching (BTM), a novel method for cross-corpus topic modeling that quantifies thematic overlap and divergence between corpora. BTM is a flexible framework that can incorporate various topic…

Computation and Language · Computer Science 2024-12-25 Raven Adam , Marie Lisa Kogler

Current large vision-language models (LVLMs) typically rely on text-only reasoning based on a single-pass visual encoding, which often leads to loss of fine-grained visual information. Recently the proposal of ''thinking with images''…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Junfei Wu , Jian Guan , Qiang Liu , Shu Wu , Liang Wang , Wei Wu , Tieniu Tan

Change captioning tasks aim to detect changes in image pairs observed before and after a scene change and generate a natural language description of the changes. Existing change captioning studies have mainly focused on a single…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Yue Qiu , Shintaro Yamamoto , Kodai Nakashima , Ryota Suzuki , Kenji Iwata , Hirokatsu Kataoka , Yutaka Satoh

We introduce OmChat, a model designed to excel in handling long contexts and video understanding tasks. OmChat's new architecture standardizes how different visual inputs are processed, making it more efficient and adaptable. It uses a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Tiancheng Zhao , Qianqian Zhang , Kyusong Lee , Peng Liu , Lu Zhang , Chunxin Fang , Jiajia Liao , Kelei Jiang , Yibo Ma , Ruochen Xu

Nowadays, navigation and ride-sharing apps have collected numerous images with spatio-temporal data. A core technology for analyzing such images, associated with spatiotemporal information, is Traffic Scene Understanding (TSU), which aims…

Multimedia · Computer Science 2025-11-13 Jingtian Ma , Jingyuan Wang , Wayne Xin Zhao , Guoping Liu , Xiang Wen

Large language models (LLMs) have demonstrated exceptional abilities across various domains. However, utilizing LLMs for ubiquitous sensing applications remains challenging as existing text-prompt methods show significant performance…

Computation and Language · Computer Science 2024-10-01 Hyungjun Yoon , Biniyam Aschalew Tolera , Taesik Gong , Kimin Lee , Sung-Ju Lee

The increasing availability of high-resolution satellite imagery, together with advances in deep learning, creates new opportunities for forest monitoring workflows. Two central challenges in this domain are pixel-level change detection and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 James Brock , Ce Zhang , Nantheera Anantrasirichai

This work proposes TimeChat, a time-sensitive multimodal large language model specifically designed for long video understanding. Our model incorporates two key architectural contributions: (1) a timestamp-aware frame encoder that binds…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Shuhuai Ren , Linli Yao , Shicheng Li , Xu Sun , Lu Hou

Supervised image captioning approaches have made great progress, but it is challenging to collect high-quality human-annotated image-text data. Recently, large-scale vision and language models (e.g., CLIP) and large-scale generative…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Yiyu Wang , Hao Luo , Jungang Xu , Yingfei Sun , Fan Wang

The evaluation of machine-generated image captions is a complex and evolving challenge. With the advent of Multimodal Large Language Models (MLLMs), image captioning has become a core task, increasing the need for robust and reliable…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Sara Sarto , Marcella Cornia , Rita Cucchiara

In recent years, the introduction of Multi-modal Large Language Models (MLLMs) into video understanding tasks has become increasingly prevalent. However, how to effectively integrate temporal information remains a critical research focus.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Xiaoyi Bao , Chenwei Xie , Hao Tang , Tingyu Weng , Xiaofeng Wang , Yun Zheng , Xingang Wang

The modeling of environmental ecosystems plays a pivotal role in the sustainable management of our planet. Accurate prediction of key environmental variables over space and time can aid in informed policy and decision-making, thus improving…

Computation and Language · Computer Science 2024-08-13 Haoran Li , Junqi Liu , Zexian Wang , Shiyuan Luo , Xiaowei Jia , Huaxiu Yao

Recently, remote sensing image captioning has gained significant attention in the remote sensing community. Due to the significant differences in spatial resolution of remote sensing images, existing methods in this field have predominantly…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Cong Yang , Zuchao Li , Lefei Zhang

Spatio-temporal forecasting plays a crucial role in various sectors such as transportation systems, logistics, and supply chain management. However, existing methods are limited by their ability to handle large, complex datasets. To…

Machine Learning · Computer Science 2024-08-27 Sakhinana Sagar Srinivas , Chidaksh Ravuru , Geethan Sannidhi , Venkataramana Runkana

Image captioning has become an important task in computer vision, enabling models to generate natural language descriptions of visual content. While several datasets exist for natural images and high-resolution optical remote sensing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Lucrezia Tosato , Gianluca Lombardi , Ronny Hansch

Open-vocabulary change detection aims to identify semantic changes in bi-temporal remote sensing images without predefined categories. Recent methods combine foundation models such as SAM, DINO and CLIP, but typically process each timestamp…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Zuzheng Kuang , Honghao Chang , Boqiang Liang , Haoqian Wang , Lijun He , Fan Li , Haixia Bi

With the rapid advancement of large language models (LLMs), intelligent conversational assistants have demonstrated remarkable capabilities across various domains. However, they still mainly rely on explicit textual input and do not know…

Human-Computer Interaction · Computer Science 2025-12-29 Ziyan Zhang , Nan Gao , Zhiqiang Nie , Shantanu Pal , Haining Zhang

Despite the popularity of the large language models (LLMs), their application to machine translation is relatively underexplored, especially in context-aware settings. This work presents a literature review of context-aware translation with…

Computation and Language · Computer Science 2025-06-10 Ramakrishna Appicharla , Baban Gain , Santanu Pal , Asif Ekbal

Leveraging sensing modalities across diverse spatial and temporal resolutions can improve performance of robotic manipulation tasks. Multi-spatial resolution sensing provides hierarchical information captured at different spatial scales and…

Robotics · Computer Science 2024-01-29 Saumya Saxena , Mohit Sharma , Oliver Kroemer

Neural Chat Translation (NCT) aims to translate conversational text into different languages. Existing methods mainly focus on modeling the bilingual dialogue characteristics (e.g., coherence) to improve chat translation via multi-task…

Computation and Language · Computer Science 2022-05-11 Yunlong Liang , Fandong Meng , Jinan Xu , Yufeng Chen , Jie Zhou