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Pre-trained Generative models such as BART, T5, etc. have gained prominence as a preferred method for text generation in various natural language processing tasks, including abstractive long-form question answering (QA) and summarization.…

Computation and Language · Computer Science 2023-11-07 Prabir Mallick , Tapas Nayak , Indrajit Bhattacharya

Recently, Transformer based pretrained language models (PLMs), such as GPT2 and T5, have been leveraged to build generative task-oriented dialog (TOD) systems. A drawback of existing PLM-based models is their non-Markov architectures across…

Computation and Language · Computer Science 2022-10-17 Hong Liu , Yucheng Cai , Zhijian Ou , Yi Huang , Junlan Feng

This study introduces an ensemble framework for unstructured text categorization using large language models (LLMs). By integrating multiple models, the ensemble large language model (eLLM) framework addresses common weaknesses of…

Artificial Intelligence · Computer Science 2025-11-21 Ariel Kamen , Yakov Kamen

A picture is worth a thousand words, thus, it is crucial for conversational agents to understand, perceive, and effectively respond with pictures. However, we find that directly employing conventional image generation techniques is…

Computation and Language · Computer Science 2024-02-09 Xiaowen Sun , Jiazhan Feng , Yuxuan Wang , Yuxuan Lai , Xingyu Shen , Dongyan Zhao

Large language models (LLMs) showcase increasingly impressive English benchmark scores, however their performance profiles remain inconsistent across multilingual settings. To address this gap, we introduce PolyPrompt, a novel,…

Computation and Language · Computer Science 2025-06-04 Nathan Roll

This paper introduces a simple yet effective data-centric approach for the task of improving persona-conditioned dialogue agents. Prior model-centric approaches unquestioningly depend on the raw crowdsourced benchmark datasets such as…

Computation and Language · Computer Science 2022-02-17 Minju Kim , Beong-woo Kwak , Youngwook Kim , Hong-in Lee , Seung-won Hwang , Jinyoung Yeo

Large Language Models (LLMs) have become a popular interface for human-AI interaction, supporting information seeking and task assistance through natural, multi-turn dialogue. To respond to users within multi-turn dialogues, the…

Computation and Language · Computer Science 2026-04-16 Fengran Mo , Yifan Gao , Sha Li , Hansi Zeng , Xin Liu , Zhaoxuan Tan , Xian Li , Jianshu Chen , Dakuo Wang , Meng Jiang

An automated metric to evaluate dialogue quality is vital for optimizing data driven dialogue management. The common approach of relying on explicit user feedback during a conversation is intrusive and sparse. Current models to estimate…

Machine Learning · Computer Science 2019-11-21 Praveen Kumar Bodigutla , Lazaros Polymenakos , Spyros Matsoukas

The rapid advancement of generative models, such as Stable Diffusion, raises a key question: how can synthetic data from these models enhance predictive modeling? While they can generate vast amounts of datasets, only a subset meaningfully…

Machine Learning · Statistics 2025-05-09 Jialong Jiang , Wenkang Hu , Jian Huang , Yuling Jiao , Xu Liu

Large Language Models (LLMs) have shown exceptional results on current benchmarks when working individually. The advancement in their capabilities, along with a reduction in parameter size and inference times, has facilitated the use of…

Computation and Language · Computer Science 2024-06-27 Alfonso Amayuelas , Xianjun Yang , Antonis Antoniades , Wenyue Hua , Liangming Pan , William Wang

How to effectively utilize the dialogue history is a crucial problem in multi-turn dialogue generation. Previous works usually employ various neural network architectures (e.g., recurrent neural networks, attention mechanisms, and…

Computation and Language · Computer Science 2020-08-14 Changying Hao , Liang Pang , Yanyan Lan , Fei Sun , Jiafeng Guo , Xueqi Cheng

While diffusion models excel at image synthesis, useful representations have been shown to emerge from generative pre-training, suggesting a path towards unified generative and discriminative learning. However, suboptimal semantic flow…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Weilai Xiang , Hongyu Yang , Di Huang , Yunhong Wang

We introduce a novel large language model (LLM)-driven agent framework, which iteratively refines queries and filters contextual evidence by leveraging dynamically evolving knowledge. A defining feature of the system is its decoupling of…

Artificial Intelligence · Computer Science 2025-04-02 Seyoung Song

In knowledge grounded conversation, domain knowledge plays an important role in a special domain such as Music. The response of knowledge grounded conversation might contain multiple answer entities or no entity at all. Although existing…

Computation and Language · Computer Science 2017-09-14 Wenya Zhu , Kaixiang Mo , Yu Zhang , Zhangbin Zhu , Xuezheng Peng , Qiang Yang

Current approaches to developing persuasive dialogue agents often rely on a limited set of predefined persuasive strategies that fail to capture the complexity of real-world interactions. We applied a cross-disciplinary approach to develop…

Computation and Language · Computer Science 2026-02-27 Shinnosuke Nozue , Yuto Nakano , Yotaro Watanabe , Meguru Takasaki , Shoji Moriya , Reina Akama , Jun Suzuki

Large language model (LLM)-based multi-agent systems (MAS) have demonstrated exceptional capabilities in solving complex tasks, yet their effectiveness depends heavily on the underlying communication topology that coordinates agent…

Machine Learning · Computer Science 2026-03-23 Hongjiang Chen , Xin Zheng , Yixin Liu , Pengfei Jiao , Shiyuan Li , Huan Liu , Zhidong Zhao , Ziqi Xu , Ibrahim Khalil , Shirui Pan

Generative models for open domain question answering have proven to be competitive, without resorting to external knowledge. While promising, this approach requires to use models with billions of parameters, which are expensive to train and…

Computation and Language · Computer Science 2021-02-04 Gautier Izacard , Edouard Grave

Open-domain conversation models have become good at generating natural-sounding dialogue, using very large architectures with billions of trainable parameters. The vast training data required to train these architectures aggregates many…

Computation and Language · Computer Science 2020-09-24 Eric Michael Smith , Diana Gonzalez-Rico , Emily Dinan , Y-Lan Boureau

It remains an open question whether incorporating external knowledge benefits commonsense reasoning while maintaining the flexibility of pretrained sequence models. To investigate this question, we develop generated knowledge prompting,…

Computation and Language · Computer Science 2022-09-30 Jiacheng Liu , Alisa Liu , Ximing Lu , Sean Welleck , Peter West , Ronan Le Bras , Yejin Choi , Hannaneh Hajishirzi

We consider the problem of designing an artificial agent capable of interacting with humans in collaborative dialogue to produce creative, engaging narratives. In this task, the goal is to establish universe details, and to collaborate on…

Human-Computer Interaction · Computer Science 2019-02-01 Kory W. Mathewson , Pablo Samuel Castro , Colin Cherry , George Foster , Marc G. Bellemare