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Recent advances in large language models (LLMs) have shown that Chain-of-Thought (CoT) reasoning can substantially improve performance on complex reasoning tasks. At the same time, In-Context Learning (ICL) has become an important mechanism…

Computation and Language · Computer Science 2026-05-19 Rui Chu

Auto-regressive models are widely used in sequence generation problems. The output sequence is typically generated in a predetermined order, one discrete unit (pixel or word or character) at a time. The models are trained by teacher-forcing…

Computation and Language · Computer Science 2019-10-23 Daniel Duckworth , Arvind Neelakantan , Ben Goodrich , Lukasz Kaiser , Samy Bengio

Multi-role dialogue understanding comprises a wide range of diverse tasks such as question answering, act classification, dialogue summarization etc. While dialogue corpora are abundantly available, labeled data, for specific learning…

Computation and Language · Computer Science 2020-03-12 Tianyi Wang , Yating Zhang , Xiaozhong Liu , Changlong Sun , Qiong Zhang

This paper delves into the challenging task of Active Speaker Detection (ASD), where the system needs to determine in real-time whether a person is speaking or not in a series of video frames. While previous works have made significant…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Arnav Kundu , Yanzi Jin , Mohammad Sekhavat , Max Horton , Danny Tormoen , Devang Naik

Conversational systems must be robust to user interactions that naturally exhibit diverse conversational traits. Capturing and simulating these diverse traits coherently and efficiently presents a complex challenge. This paper introduces…

Computation and Language · Computer Science 2024-10-29 Rafael Ferreira , David Semedo , João Magalhães

In this work, we propose FastCoT, a model-agnostic framework based on parallel decoding without any further training of an auxiliary model or modification to the LLM itself. FastCoT uses a size-varying context window whose size changes with…

Computation and Language · Computer Science 2024-06-05 Hongxuan Zhang , Zhining Liu , Yao Zhao , Jiaqi Zheng , Chenyi Zhuang , Jinjie Gu , Guihai Chen

Recently, resources and tasks were proposed to go beyond state tracking in dialogue systems. An example is the frame tracking task, which requires recording multiple frames, one for each user goal set during the dialogue. This allows a…

Computation and Language · Computer Science 2017-06-07 Hannes Schulz , Jeremie Zumer , Layla El Asri , Shikhar Sharma

The integration of large language models (LLMs) with external tools has significantly expanded the capabilities of AI agents. However, as the diversity of both LLMs and tools increases, selecting the optimal model-tool combination becomes a…

Computation and Language · Computer Science 2026-01-08 Jinyang Wu , Guocheng Zhai , Ruihan Jin , Jiahao Yuan , Yuhao Shen , Shuai Zhang , Zhengqi Wen , Jianhua Tao

Despite the multi-turn open-domain dialogue systems have attracted more and more attention and made great progress, the existing dialogue systems are still very boring. Nearly all the existing dialogue models only provide a response when…

Computation and Language · Computer Science 2019-12-23 Tian Lan , Xianling Mao , Heyan Huang , Wei Wei

This paper examines various unsupervised pretraining objectives for learning dialog context representations. Two novel methods of pretraining dialog context encoders are proposed, and a total of four methods are examined. Each pretraining…

Computation and Language · Computer Science 2019-06-05 Shikib Mehri , Evgeniia Razumovskaia , Tiancheng Zhao , Maxine Eskenazi

Efficient patient-doctor interaction is among the key factors for a successful disease diagnosis. During the conversation, the doctor could query complementary diagnostic information, such as the patient's symptoms, previous surgery, and…

Computation and Language · Computer Science 2024-10-08 Xueshen Li , Xinlong Hou , Nirupama Ravi , Ziyi Huang , Yu Gan

We describe an approach to task-oriented dialogue in which dialogue state is represented as a dataflow graph. A dialogue agent maps each user utterance to a program that extends this graph. Programs include metacomputation operators for…

Large Language Model (LLM) agents have emerged as powerful tools for automating complex tasks by leveraging the reasoning and decision-making abilities of LLMs. However, a major bottleneck in current agent frameworks lies in the high…

Artificial Intelligence · Computer Science 2025-11-19 Jingyi Jia , Qinbin Li

Human-computer interactive systems that rely on machine learning are becoming paramount to the lives of millions of people who use digital assistants on a daily basis. Yet, further advances are limited by the availability of data and the…

Machine Learning · Computer Science 2020-04-29 Katya Kudashkina , Valliappa Chockalingam , Graham W. Taylor , Michael Bowling

Large language model (LLM)-based agents have shown strong capabilities in using external tools to solve complex tasks. However, existing evaluations often overlook the temporal dimension of tool use, especially the impact of tool response…

Artificial Intelligence · Computer Science 2026-05-29 Kou Shi , Ziao Zhang , Shiting Huang , Avery Nie , Zhen Fang , Qiuchen Wang , Lin Chen , Huaian Chen , Zehui Chen , Feng Zhao

As the basis of generative AI, an autoregressive model requires the generation of a new token depending on all the previously generated tokens, which brings high quality but also restricts the model to generate tokens one by one, forming a…

Computation and Language · Computer Science 2025-07-02 Zixian Huang , Chenxu Niu , Yu Gu , Gengyang Xiao , Xinwei Huang , Gong Cheng

Chatbots are designed to carry out human-like conversations across different domains, such as general chit-chat, knowledge exchange, and persona-grounded conversations. To measure the quality of such conversational agents, a dialogue…

Computation and Language · Computer Science 2022-01-19 Chen Zhang , Luis Fernando D'Haro , Thomas Friedrichs , Haizhou Li

Ensuring safe, comfortable, and efficient planning is crucial for autonomous driving systems. While end-to-end models trained on large datasets perform well in standard driving scenarios, they struggle with complex low-frequency events.…

The increasing scale and complexity of large language models (LLMs) pose significant inference latency challenges, primarily due to their autoregressive decoding paradigm characterized by the sequential nature of next-token prediction. By…

Computation and Language · Computer Science 2025-08-15 Keyu Chen , Zhifeng Shen , Daohai Yu , Haoqian Wu , Wei Wen , Jianfeng He , Ruizhi Qiao , Xing Sun

Audio Visual Scene-aware Dialog (AVSD) is the task of generating a response for a question with a given scene, video, audio, and the history of previous turns in the dialog. Existing systems for this task employ the transformers or…

Computation and Language · Computer Science 2020-04-20 Hwanhee Lee , Seunghyun Yoon , Franck Dernoncourt , Doo Soon Kim , Trung Bui , Kyomin Jung