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Task-oriented compositional semantic parsing (TCSP) handles complex nested user queries and serves as an essential component of virtual assistants. Current TCSP models rely on numerous training data to achieve decent performance but fail to…

Computation and Language · Computer Science 2021-06-08 Zihan Liu , Genta Indra Winata , Peng Xu , Pascale Fung

Text-video retrieval is a challenging task that aims to search relevant video contents based on natural language descriptions. The key to this problem is to measure text-video similarities in a joint embedding space. However, most existing…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Xiaohan Wang , Linchao Zhu , Yi Yang

In this work we present a novel approach to joint semantic localisation and scene understanding. Our work is motivated by the need for localisation algorithms which not only predict 6-DoF camera pose but also simultaneously recognise…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Ignas Budvytis , Marvin Teichmann , Tomas Vojir , Roberto Cipolla

Due to recent advances in pose-estimation methods, human motion can be extracted from a common video in the form of 3D skeleton sequences. Despite wonderful application opportunities, effective and efficient content-based access to large…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Nicola Messina , Jan Sedmidubsky , Fabrizio Falchi , Tomáš Rebok

In this paper, we present and study a new instance-level retrieval task: PointCloud-Text Matching (PTM), which aims to identify the exact cross-modal instance that matches a given point-cloud query or text query. PTM has potential…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Yanglin Feng , Yang Qin , Dezhong Peng , Hongyuan Zhu , Xi Peng , Peng Hu

Natural language interfaces to embodied AI are becoming more ubiquitous in our daily lives. This opens up further opportunities for language-based interaction with embodied agents, such as a user verbally instructing an agent to execute…

Computer Vision and Pattern Recognition · Computer Science 2024-11-11 Jiaqi Chen , Daniel Barath , Iro Armeni , Marc Pollefeys , Hermann Blum

The abundance of multimodal data (e.g. social media posts) has inspired interest in cross-modal retrieval methods. Popular approaches rely on a variety of metric learning losses, which prescribe what the proximity of image and text should…

Computer Vision and Pattern Recognition · Computer Science 2020-09-24 Christopher Thomas , Adriana Kovashka

As an important task in multimodal context understanding, Text-VQA (Visual Question Answering) aims at question answering through reading text information in images. It differentiates from the original VQA task as Text-VQA requires large…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Xiaopeng Lu , Zhen Fan , Yansen Wang , Jean Oh , Carolyn P. Rose

The natural world is abundant with concepts expressed via visual, acoustic, tactile, and linguistic modalities. Much of the existing progress in multimodal learning, however, focuses primarily on problems where the same set of modalities…

Machine Learning · Computer Science 2020-12-08 Paul Pu Liang , Peter Wu , Liu Ziyin , Louis-Philippe Morency , Ruslan Salakhutdinov

Multi-Object Tracking (MOT) aims to associate multiple objects across video frames and is a challenging vision task due to inherent complexities in the tracking environment. Most existing approaches train and track within a single domain,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Run Luo , Zikai Song , Longze Chen , Yunshui Li , Min Yang , Wei Yang

With the rapid proliferation of information across digital platforms, stance detection has emerged as a pivotal challenge in social media analysis. While most of the existing approaches focus solely on textual data, real-world social media…

Computer Vision and Pattern Recognition · Computer Science 2025-09-11 Lata Pangtey , Omkar Kabde , Shahid Shafi Dar , Nagendra Kumar

We present a vehicle self-localization method using point-based deep neural networks. Our approach processes measurements and point features, i.e. landmarks, from a high-definition digital map to infer the vehicle's pose. To learn the best…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Nico Engel , Vasileios Belagiannis , Klaus Dietmayer

In this work we contribute a novel pipeline to automatically generate training data, and to improve over state-of-the-art multi-object tracking and segmentation (MOTS) methods. Our proposed track mining algorithm turns raw street-level…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Lorenzo Porzi , Markus Hofinger , Idoia Ruiz , Joan Serrat , Samuel Rota Bulò , Peter Kontschieder

How can we imbue robots with the ability to manipulate objects precisely but also to reason about them in terms of abstract concepts? Recent works in manipulation have shown that end-to-end networks can learn dexterous skills that require…

Robotics · Computer Science 2021-09-27 Mohit Shridhar , Lucas Manuelli , Dieter Fox

Task-aware navigation continues to be a challenging area of research, especially in scenarios involving open vocabulary. Previous studies primarily focus on finding suitable locations for task completion, often overlooking the importance of…

Robotics · Computer Science 2024-09-18 Jun Zhu , Zihao Du , Haotian Xu , Fengbo Lan , Zilong Zheng , Bo Ma , Shengjie Wang , Tao Zhang

The ability to place objects in the environment is an important skill for a personal robot. An object should not only be placed stably, but should also be placed in its preferred location/orientation. For instance, a plate is preferred to…

Robotics · Computer Science 2015-03-19 Yun Jiang , Changxi Zheng , Marcus Lim , Ashutosh Saxena

Text-based person search aims to retrieve the matched pedestrians from a large-scale image database according to the text description. The core difficulty of this task is how to extract effective details from pedestrian images and texts,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Wei Shen , Ming Fang , Yuxia Wang , Jiafeng Xiao , Diping Li , Huangqun Chen , Ling Xu , Weifeng Zhang

Autonomous robots require change-robust spatial-semantic reasoning: using spatial and semantic knowledge to decide where to go, how to get there, and where the robot is despite environmental change. Existing approaches typically attach…

Robotics · Computer Science 2026-05-05 Jiaming Wang , Jizhuo Chen , Diwen Liu , Atharva Ghotavadekar , Jiaxuan Da , Linh Kästner , Harold Soh

This paper addresses the gap in predicting turn-taking and backchannel actions in human-machine conversations using multi-modal signals (linguistic, acoustic, and visual). To overcome the limitation of existing datasets, we propose an…

Computation and Language · Computer Science 2025-05-21 Yuxin Lin , Yinglin Zheng , Ming Zeng , Wangzheng Shi

Topological localization is a fundamental problem in mobile robotics, since robots must be able to determine their position in order to accomplish tasks. Visual localization and place recognition are challenging due to perceptual ambiguity,…

Robotics · Computer Science 2025-09-08 Emanuela Boros