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This paper summarizes our entries to both subtasks of the first DialDoc shared task which focuses on the agent response prediction task in goal-oriented document-grounded dialogs. The task is split into two subtasks: predicting a span in a…

Computation and Language · Computer Science 2021-06-15 Nico Daheim , David Thulke , Christian Dugast , Hermann Ney

We present STORM (Search-Guided Generative World Models), a novel framework for spatio-temporal reasoning in robotic manipulation that unifies diffusion-based action generation, conditional video prediction, and search-based planning.…

Robotics · Computer Science 2025-12-23 Wenjun Lin , Jensen Zhang , Kaitong Cai , Keze Wang

Large language models show potential in task-oriented dialogue systems, yet existing training methods often rely on token-level likelihood or preference optimization, which poorly align with long-horizon task success. To address this, we…

Computation and Language · Computer Science 2026-02-23 Jingyi Xu , Xingyu Ren , Zhoupeng Shou , Yumeng Zhang , Zhiqiang You

An associative memory (AM) enables cue-response recall, and it has recently been recognized as a key mechanism underlying modern neural architectures such as Transformers. In this work, we introduce the concept of distributed dynamic…

Machine Learning · Computer Science 2025-12-01 Bowen Wang , Matteo Zecchin , Osvaldo Simeone

We present an integrated approach for structure and parameter estimation in latent tree graphical models. Our overall approach follows a "divide-and-conquer" strategy that learns models over small groups of variables and iteratively merges…

Machine Learning · Computer Science 2019-12-19 Furong Huang , Niranjan U. N. , Ioakeim Perros , Robert Chen , Jimeng Sun , Anima Anandkumar

End-to-end task-oriented dialogue (TOD) systems have achieved promising performance by leveraging sophisticated natural language understanding and natural language generation capabilities of pre-trained models. This work enables the TOD…

Computation and Language · Computer Science 2023-08-17 Jianguo Zhang , Stephen Roller , Kun Qian , Zhiwei Liu , Rui Meng , Shelby Heinecke , Huan Wang , Silvio Savarese , Caiming Xiong

In Task-Oriented Dialogue (TOD) systems, correctly updating the system's understanding of the user's requests (\textit{a.k.a} dialogue state tracking) is key to a smooth interaction. Traditionally, TOD systems perform this update in three…

Computation and Language · Computer Science 2024-07-02 Lucas Druart , Valentin Vielzeuf , Yannick Estève

The budgeted information gathering problem - where a robot with a fixed fuel budget is required to maximize the amount of information gathered from the world - appears in practice across a wide range of applications in autonomous…

Robotics · Computer Science 2016-11-15 Sanjiban Choudhury , Ashish Kapoor , Gireeja Ranade , Debadeepta Dey

Despite their outstanding capabilities, large language models (LLMs) are prone to hallucination and producing factually incorrect information. This challenge has spurred efforts in attributed text generation, which prompts LLMs to generate…

Computation and Language · Computer Science 2025-06-23 Junyi Li , Hwee Tou Ng

Diffusion-based generative models learn to iteratively transfer unstructured noise to a complex target distribution as opposed to Generative Adversarial Networks (GANs) or the decoder of Variational Autoencoders (VAEs) which produce samples…

Machine Learning · Computer Science 2022-10-26 Sarthak Mittal , Guillaume Lajoie , Stefan Bauer , Arash Mehrjou

We initiate a study of a query-driven approach to designing partition trees for range-searching problems. Our model assumes that a data structure is to be built for an unknown query distribution that we can access through a sampling oracle,…

Data Structures and Algorithms · Computer Science 2025-02-20 Dimitris Fotakis , Andreas Kalavas , Ioannis Psarros

The goal of this paper is to investigate distributed temporal difference (TD) learning for a networked multi-agent Markov decision process. The proposed approach is based on distributed optimization algorithms, which can be interpreted as…

Machine Learning · Computer Science 2025-05-14 Han-Dong Lim , Donghwan Lee

Different from other sequential data, sentences in natural language are structured by linguistic grammars. Previous generative conversational models with chain-structured decoder ignore this structure in human language and might generate…

Artificial Intelligence · Computer Science 2018-01-04 Ganbin Zhou , Ping Luo , Rongyu Cao , Yijun Xiao , Fen Lin , Bo Chen , Qing He

Despite the integration of search tools, Deep Search Agents often suffer from a misalignment between reasoning-driven queries and the underlying web indexing structures. Existing frameworks treat the search engine as a static utility,…

Machine Learning · Computer Science 2026-03-10 Zixuan Yu , Zhenheng Tang , Tongliang Liu , Chengqi Zhang , Xiaowen Chu , Bo Han

Reinforcement learning (RL) is a powerful approach to enhance task-oriented dialogue (TOD) systems. However, existing RL methods tend to mainly focus on generation tasks, such as dialogue policy learning (DPL) or response generation (RG),…

Artificial Intelligence · Computer Science 2024-06-21 Huifang Du , Shuqin Li , Minghao Wu , Xuejing Feng , Yuan-Fang Li , Haofen Wang

Scarcity of training data for task-oriented dialogue systems is a well known problem that is usually tackled with costly and time-consuming manual data annotation. An alternative solution is to rely on automatic text generation which,…

Computation and Language · Computer Science 2019-11-12 Stéphane d'Ascoli , Alice Coucke , Francesco Caltagirone , Alexandre Caulier , Marc Lelarge

Knowledge-based visual question answering (KB-VQA) requires vision-language models to understand images and use external knowledge, especially for rare entities and long-tail facts. Most existing retrieval-augmented generation (RAG) methods…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Zhuohong Chen , Zhenxian Wu , Yunyao Yu , Hangrui Xu , Zirui Liao , Zhifang Liu , Xiangwen Deng , Pen Jiao , Haoqian Wang

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

Task-oriented dialogue (TOD) system is designed to accomplish user-defined tasks through dialogues. The TOD system has progressed towards end-to-end modeling by leveraging pre-trained large language models. Fine-tuning the pre-trained…

Computation and Language · Computer Science 2024-11-11 Dharmendra Prajapat , Durga Toshniwal

The efficiency of multi-agent systems driven by large language models (LLMs) largely hinges on their communication topology. However, designing an optimal topology is a non-trivial challenge, as it requires balancing competing objectives…

Computation and Language · Computer Science 2026-05-19 Eric Hanchen Jiang , Mengting Li , Guancheng Wan , Sophia Yin , Yuchen Wu , Xiao Liang , Xinfeng Li , Yizhou Sun , Wei Wang , Kai-Wei Chang , Ying Nian Wu