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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

In this paper, we present a multimodal dialogue system for Conversational Image Editing. We formulate our multimodal dialogue system as a Partially Observed Markov Decision Process (POMDP) and trained it with Deep Q-Network (DQN) and a user…

Computation and Language · Computer Science 2020-02-18 Tzu-Hsiang Lin , Trung Bui , Doo Soon Kim , Jean Oh

Pre-training a model to learn transferable video-text representation for retrieval has attracted a lot of attention in recent years. Previous dominant works mainly adopt two separate encoders for efficient retrieval, but ignore local…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Yuying Ge , Yixiao Ge , Xihui Liu , Dian Li , Ying Shan , Xiaohu Qie , Ping Luo

In this work, we investigate the task of textual response generation in a multimodal task-oriented dialogue system. Our work is based on the recently released Multimodal Dialogue (MMD) dataset (Saha et al., 2017) in the fashion domain. We…

Computation and Language · Computer Science 2018-11-22 Shubham Agarwal , Ondrej Dusek , Ioannis Konstas , Verena Rieser

Time series forecasts are often influenced by exogenous contextual features in addition to their corresponding history. For example, in financial settings, it is hard to accurately predict a stock price without considering public sentiments…

With the rising popularity of Transformer-based large language models (LLMs), reducing their high inference costs has become a significant research focus. One effective approach is to compress the long input contexts. Existing methods…

Computation and Language · Computer Science 2024-11-06 Xiangfeng Wang , Zaiyi Chen , Zheyong Xie , Tong Xu , Yongyi He , Enhong Chen

Compared to single-turn dialogue, multi-turn dialogue involving multiple images better aligns with the needs of real-world human-AI interactions. Additionally, as training data, it provides richer contextual reasoning information, thereby…

Artificial Intelligence · Computer Science 2025-03-25 Dawei Yan , Yang Li , Qing-Guo Chen , Weihua Luo , Peng Wang , Haokui Zhang , Chunhua Shen

Conventional text style transfer approaches focus on sentence-level style transfer without considering contextual information, and the style is described with attributes (e.g., formality). When applying style transfer in conversations such…

Computation and Language · Computer Science 2023-09-25 Shamik Roy , Raphael Shu , Nikolaos Pappas , Elman Mansimov , Yi Zhang , Saab Mansour , Dan Roth

Efficiently handling long contexts in transformer-based language models with low perplexity is an active area of research. Numerous recent approaches like Linformer, Longformer, Performer, and Structured state space models (SSMs)., have not…

Machine Learning · Computer Science 2025-04-22 Sushant Singh , Ausif Mahmood

In the growing domain of scientific machine learning, in-context operator learning has shown notable potential in building foundation models, as in this framework the model is trained to learn operators and solve differential equations…

Machine Learning · Computer Science 2024-02-02 Liu Yang , Siting Liu , Stanley J. Osher

Detecting dialogue breakdown in real time is critical for conversational AI systems, because it enables taking corrective action to successfully complete a task. In spoken dialog systems, this breakdown can be caused by a variety of…

Computation and Language · Computer Science 2024-04-15 Md Messal Monem Miah , Ulie Schnaithmann , Arushi Raghuvanshi , Youngseo Son

Pre-trained conversation models (PCMs) have demonstrated remarkable results in task-oriented dialogue (TOD) systems. Many PCMs focus predominantly on dialogue management tasks like dialogue state tracking, dialogue generation tasks like…

Computation and Language · Computer Science 2023-12-29 Mingtao Yang , See-Kiong Ng , Jinlan Fu

Large Language Models (LLMs) struggle with long-horizon tasks due to the "context bottleneck" and the "lost-in-the-middle" phenomenon, where accumulated noise from verbose environments degrades reasoning over multi-turn interactions. To…

Artificial Intelligence · Computer Science 2026-04-14 Xiaozhe Li , Tianyi Lyu , Yizhao Yang , Liang Shan , Siyi Yang , Ligao Zhang , Zhuoyi Huang , Qingwen Liu , Yang Li

Multimodal trajectory prediction generates multiple plausible future trajectories to address vehicle motion uncertainty from intention ambiguity and execution variability. However, HD map-dependent models suffer from costly data…

Artificial Intelligence · Computer Science 2025-11-25 Yuzhi Chen , Yuanchang Xie , Lei Zhao , Pan Liu , Yajie Zou , Chen Wang

Collection of annotated dialogs for training task-oriented dialog systems have been one of the key bottlenecks in improving current models. While dialog response generation has been widely studied on the agent side, it is not evident if…

Computation and Language · Computer Science 2023-10-17 Dustin Axman , Avik Ray , Shubham Garg , Jing Huang

Recently, large language models (LLMs), such as GPT-4, stand out remarkable conversational abilities, enabling them to engage in dynamic and contextually relevant dialogues across a wide range of topics. However, given a long conversation,…

Computation and Language · Computer Science 2025-08-26 Qingyue Wang , Yanhe Fu , Yanan Cao , Shuai Wang , Zhiliang Tian , Liang Ding

Users interacting with Large Language Models (LLMs) in a multi-turn conversation routinely refine their requests or pivot to new topics. LLMs, however, often miss these topic shifts and carry over irrelevant context from previous turns,…

Computation and Language · Computer Science 2026-05-12 Aditya Sinha , Harald Steck , Vito Ostuni , Matteo Rinaldi

Large language models (LLMs) are increasingly relied upon for complex multi-turn conversations across diverse real-world applications. However, existing benchmarks predominantly focus on single-turn evaluations, overlooking the models'…

Computation and Language · Computer Science 2024-01-31 Wai-Chung Kwan , Xingshan Zeng , Yuxin Jiang , Yufei Wang , Liangyou Li , Lifeng Shang , Xin Jiang , Qun Liu , Kam-Fai Wong

This paper studies zero-shot cross-lingual transfer of vision-language models. Specifically, we focus on multilingual text-to-video search and propose a Transformer-based model that learns contextualized multilingual multimodal embeddings.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Po-Yao Huang , Mandela Patrick , Junjie Hu , Graham Neubig , Florian Metze , Alexander Hauptmann

Deploying conversational voice agents with large language models faces a critical challenge: cloud-based foundation models provide deep reasoning and domain knowledge but introduce latency that disrupts natural conversation, while on-device…

Computation and Language · Computer Science 2025-11-11 Vidya Srinivas , Zachary Englhardt , Maximus Powers , Shwetak Patel , Vikram Iyer