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Context and context-awareness provides computing environments with the ability to usefully adapt the services or information they provide. It is the ability to implicitly sense and automatically derive the user needs that separates…

Information Retrieval · Computer Science 2007-05-23 Paul Prekop , Mark Burnett

Targeted sentiment classification aims at determining the sentimental tendency towards specific targets. Most of the previous approaches model context and target words with RNN and attention. However, RNNs are difficult to parallelize and…

Computation and Language · Computer Science 2019-09-24 Youwei Song , Jiahai Wang , Tao Jiang , Zhiyue Liu , Yanghui Rao

Most user-related data can be represented as a sequence of events associated with a timestamp and a collection of categorical labels. For example, the purchased basket of goods and the time of buying fully characterize the event of the…

Machine Learning · Computer Science 2024-10-29 Elizaveta Kovtun , Galina Boeva , Andrey Shulga , Alexey Zaytsev

Learning an effective speaker representation is crucial for achieving reliable performance in speaker verification tasks. Speech signals are high-dimensional, long, and variable-length sequences containing diverse information at each…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-25 Wei Xia , John H. L. Hansen

Lane change prediction of surrounding vehicles is a key building block of path planning. The focus has been on increasing the accuracy of prediction by posing it purely as a function estimation problem at the cost of model…

Computer Vision and Pattern Recognition · Computer Science 2019-03-08 Oliver Scheel , Naveen Shankar Nagaraja , Loren Schwarz , Nassir Navab , Federico Tombari

The advancement of socially-aware autonomous vehicles hinges on precise modeling of human behavior. Within this broad paradigm, the specific challenge lies in accurately predicting pedestrian's trajectory and intention. Traditional…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Farzeen Munir , Tomasz Piotr Kucner

Crowdsourcing is a relatively economic and efficient solution to collect annotations from the crowd through online platforms. Answers collected from workers with different expertise may be noisy and unreliable, and the quality of annotated…

Machine Learning · Computer Science 2020-01-08 Jingzheng Tu , Guoxian Yu , Jun Wang , Carlotta Domeniconi , Xiangliang Zhang

Visual tracking has made significant improvements in the past few decades. Most existing state-of-the-art trackers 1) merely aim for performance in ideal conditions while overlooking the real-world conditions; 2) adopt the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Ziang Cao , Ziyuan Huang , Liang Pan , Shiwei Zhang , Ziwei Liu , Changhong Fu

Both humans and machines learn the meaning of unknown words through contextual information in a sentence, but not all contexts are equally helpful for learning. We introduce an effective method for capturing the level of contextual…

Computation and Language · Computer Science 2023-11-10 Sungjin Nam , David Jurgens , Gwen Frishkoff , Kevyn Collins-Thompson

Trajectory prediction models in autonomous driving are vulnerable to perturbations from non-causal agents whose actions should not affect the ego-agent's behavior. Such perturbations can lead to incorrect predictions of other agents'…

Robotics · Computer Science 2026-05-19 Ehsan Ahmadi , Ray Mercurius , Soheil Alizadeh , Kasra Rezaee , Amir Rasouli

In today's businesses, marketing has been a central trend for growth. Marketing quality is equally important as product quality and relevant metrics. Quality of Marketing depends on targeting the right person. Technology adaptations have…

Multiagent Systems · Computer Science 2024-09-17 Afzal Ahmed , Muhammad Raees

Context modeling and recognition represent complex tasks that allow mobile and ubiquitous computing applications to adapt to the user's situation. Current solutions mainly focus on limited context information generally processed on…

Machine Learning · Computer Science 2023-07-19 Mattia Giovanni Campana , Franca Delmastro

Predicting future trajectories of surrounding obstacles is a crucial task for autonomous driving cars to achieve a high degree of road safety. There are several challenges in trajectory prediction in real-world traffic scenarios, including…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Bo Dong , Hao Liu , Yu Bai , Jinbiao Lin , Zhuoran Xu , Xinyu Xu , Qi Kong

In recent years, studying and predicting alternative mobility (e.g., sharing services) patterns in urban environments has become increasingly important as accurate and timely information on current and future vehicle flows can successfully…

Machine Learning · Computer Science 2021-08-19 Stefano Fiorini , Michele Ciavotta , Andrea Maurino

There is significant progress in recognizing traditional human activities from videos focusing on highly distinctive actions involving discriminative body movements, body-object and/or human-human interactions. Driver's activities are…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Zachary Wharton , Ardhendu Behera , Yonghuai Liu , Nik Bessis

We present an attention-based modular neural framework for computer vision. The framework uses a soft attention mechanism allowing models to be trained with gradient descent. It consists of three modules: a recurrent attention module…

Machine Learning · Computer Science 2016-04-29 Samira Ebrahimi Kahou , Vincent Michalski , Roland Memisevic

Probabilistic models can learn users' preferences from the history of their item adoptions on a social media site, and in turn, recommend new items to users based on learned preferences. However, current models ignore psychological factors…

Information Retrieval · Computer Science 2013-11-07 Jeon-Hyung Kang , Kristina Lerman

User interests are usually dynamic in the real world, which poses both theoretical and practical challenges for learning accurate preferences from rich behavior data. Among existing user behavior modeling solutions, attention networks are…

Information Retrieval · Computer Science 2022-04-14 Chao Chen , Haoyu Geng , Nianzu Yang , Junchi Yan , Daiyue Xue , Jianping Yu , Xiaokang Yang

Motivated by the goal of endowing robots with a means for focusing attention in order to operate reliably in complex, uncertain, and time-varying environments, we consider how a robot can (i) determine which portions of its environment to…

Robotics · Computer Science 2022-11-14 Meghan Booker , Anirudha Majumdar

Unlike images or videos data which can be easily labeled by human being, sensor data annotation is a time-consuming process. However, traditional methods of human activity recognition require a large amount of such strictly labeled data for…

Machine Learning · Computer Science 2019-07-02 Kun Wang , Jun He , Lei Zhang