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Complex Query Answering (CQA) is a challenge task of Knowledge Graph (KG). Due to the incompleteness of KGs, query embedding (QE) methods have been proposed to encode queries and entities into the same embedding space, and treat logical…

Artificial Intelligence · Computer Science 2025-09-30 Yao Xu , Shizhu He , Cunguang Wang , Li Cai , Kang Liu , Jun Zhao

Egocentric augmented reality devices such as wearable glasses passively capture visual data as a human wearer tours a home environment. We envision a scenario wherein the human communicates with an AI agent powering such a device by asking…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Samyak Datta , Sameer Dharur , Vincent Cartillier , Ruta Desai , Mukul Khanna , Dhruv Batra , Devi Parikh

Deep Reinforcement Learning is a promising tool for robotic control, yet practical application is often hindered by the difficulty of designing effective reward functions. Real-world tasks typically require optimizing multiple objectives…

Machine Learning · Computer Science 2026-03-06 Kilian Freitag , Knut Åkesson , Morteza Haghir Chehreghani

This technical report presents our solution, EgoAdapt (Egocentric Adaptation via Category, Calibration, and Consistency), to the CVPR 2026 HD-EPIC VQA challenge. HD-EPIC evaluates whether a vision-language model can reason over realistic…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Zhiwei Chen , Yupeng Hu , Zixu Li , Zhiheng Fu , Guozhi Qiu , Weili Guan , Liqiang Nie

We present OAKINK2, a dataset of bimanual object manipulation tasks for complex daily activities. In pursuit of constructing the complex tasks into a structured representation, OAKINK2 introduces three level of abstraction to organize the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Xinyu Zhan , Lixin Yang , Yifei Zhao , Kangrui Mao , Hanlin Xu , Zenan Lin , Kailin Li , Cewu Lu

In most real-world large-scale online applications (e.g., e-commerce or finance), customer acquisition is usually a multi-step conversion process of audiences. For example, an impression->click->purchase process is usually performed of…

Artificial Intelligence · Computer Science 2021-05-25 Dongbo Xi , Zhen Chen , Peng Yan , Yinger Zhang , Yongchun Zhu , Fuzhen Zhuang , Yu Chen

This paper presents a novel framework for automatic learning of complex strategies in human decision making. The task that we are interested in is to better facilitate long term planning for complex, multi-step events. We observe temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-05-15 Tharindu Fernando , Simon Denman , Sridha Sridharan , Clinton Fookes

This technical report describes the EgoTask Translation approach that explores relations among a set of egocentric video tasks in the Ego4D challenge. To improve the primary task of interest, we propose to leverage existing models developed…

Computer Vision and Pattern Recognition · Computer Science 2023-02-06 Zihui Xue , Yale Song , Kristen Grauman , Lorenzo Torresani

UI task automation enables efficient task execution by simulating human interactions with graphical user interfaces (GUIs), without modifying the existing application code. However, its broader adoption is constrained by the need for…

Human-Computer Interaction · Computer Science 2025-03-19 Tian Huang , Chun Yu , Weinan Shi , Zijian Peng , David Yang , Weiqi Sun , Yuanchun Shi

Deep reinforcement learning has achieved great successes in recent years, but there are still open challenges, such as convergence to locally optimal policies and sample inefficiency. In this paper, we contribute a novel self-supervised…

Machine Learning · Computer Science 2019-07-26 Bilal Kartal , Pablo Hernandez-Leal , Matthew E. Taylor

This paper presents a new method --- adversarial advantage actor-critic (Adversarial A2C), which significantly improves the efficiency of dialogue policy learning in task-completion dialogue systems. Inspired by generative adversarial…

Computation and Language · Computer Science 2018-02-09 Baolin Peng , Xiujun Li , Jianfeng Gao , Jingjing Liu , Yun-Nung Chen , Kam-Fai Wong

TPC (Three-Phase Consolidation) is here introduced as a simple but effective approach to continually learn new classes (and/or instances of known classes) while controlling forgetting of previous knowledge. Each experience (a.k.a. task) is…

Machine Learning · Computer Science 2024-03-25 Davide Maltoni , Lorenzo Pellegrini

Different video understanding tasks are typically treated in isolation, and even with distinct types of curated data (e.g., classifying sports in one dataset, tracking animals in another). However, in wearable cameras, the immersive…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Zihui Xue , Yale Song , Kristen Grauman , Lorenzo Torresani

Knowledge tracing (KT) is the problem of predicting students' future performance based on their historical interactions with intelligent tutoring systems. Recent studies have applied multiple types of deep neural networks to solve the KT…

Computers and Society · Computer Science 2023-02-17 Zitao Liu , Qiongqiong Liu , Jiahao Chen , Shuyan Huang , Boyu Gao , Weiqi Luo , Jian Weng

In this paper, we introduce Attention Prompt Tuning (APT) - a computationally efficient variant of prompt tuning for video-based applications such as action recognition. Prompt tuning approaches involve injecting a set of learnable prompts…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Wele Gedara Chaminda Bandara , Vishal M. Patel

Conversational Question Generation (CQG) is a critical task for machines to assist humans in fulfilling their information needs through conversations. The task is generally cast into two different settings: answer-aware and answer-unaware.…

Computation and Language · Computer Science 2023-05-08 Xuan Long Do , Bowei Zou , Shafiq Joty , Anh Tai Tran , Liangming Pan , Nancy F. Chen , Ai Ti Aw

ChatGPT has achieved remarkable success in natural language understanding. Considering that recommendation is indeed a conversation between users and the system with items as words, which has similar underlying pattern with ChatGPT, we…

Information Retrieval · Computer Science 2024-04-16 Yabin Zhang , Wenhui Yu , Erhan Zhang , Xu Chen , Lantao Hu , Peng Jiang , Kun Gai

Procedural activities are sequences of key-steps aimed at achieving specific goals. They are crucial to build intelligent agents able to assist users effectively. In this context, task graphs have emerged as a human-understandable…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Luigi Seminara , Giovanni Maria Farinella , Antonino Furnari

Egocentric Video Question Answering (Egocentric VideoQA) plays an important role in egocentric video understanding, which refers to answering questions based on first-person videos. Although existing methods have made progress through the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Jiayi Zou , Chaofan Chen , Bing-Kun Bao , Changsheng Xu

Conversational Question Answering (ConvQA) involves multiple subtasks, i) to understand incomplete questions in their context, ii) to retrieve relevant information, and iii) to generate answers. This work presents PRAISE, a pipeline-based…

Computation and Language · Computer Science 2025-04-16 Magdalena Kaiser , Gerhard Weikum