no code implementations • 24 Mar 2022 • Nader Meskin, Ehsan Sabouni, Wei Xiao, Christos G. Cassandras
The safety constraints and the vehicle limitations are considered using the Control Barrier Function (CBF) framework and a self-triggered scheme is proposed using the CBF constraints.
no code implementations • 22 Mar 2022 • Ehsan Sabouni, Christos G. Cassandras, Wei Xiao, Nader Meskin
We address the problem of controlling Connected and Automated Vehicles (CAVs) in conflict areas of a traffic network subject to hard safety constraints.
no code implementations • 8 Mar 2022 • Kaiyuan Xu, Wei Xiao, Christos G. Cassandras
We consider the merging control problem for Connected and Automated Vehicles (CAVs) aiming to jointly minimize travel time and energy consumption while providing speed-dependent safety guarantees and satisfying velocity and acceleration constraints.
no code implementations • 4 Mar 2022 • Wei Xiao, Tsun-Hsuan Wang, Makram Chahine, Alexander Amini, Ramin Hasani, Daniela Rus
They are interpretable at scale, achieve great test performance under limited training data, and are safety guaranteed in a series of autonomous driving scenarios such as lane keeping and obstacle avoidance.
no code implementations • 3 Mar 2022 • Andy T. Liu, Wei Xiao, Henghui Zhu, Dejiao Zhang, Shang-Wen Li, Andrew Arnold
Recently, prompt-based learning for pre-trained language models has succeeded in few-shot Named Entity Recognition (NER) by exploiting prompts as task guidance to increase label efficiency.
no code implementations • 22 Nov 2021 • Wei Xiao, Ramin Hasani, Xiao Li, Daniela Rus
This paper introduces differentiable higher-order control barrier functions (CBF) that are end-to-end trainable together with learning systems.
no code implementations • 19 Oct 2021 • Wei Xiao, Qian Hu, Thahir Mohamed, Zheng Gao, Xibin Gao, Radhika Arava, Mohamed AbdelHady
Intelligent personal assistants (IPA) enable voice applications that facilitate people's daily tasks.
no code implementations • BigScience (ACL) 2022 • Xisen Jin, Dejiao Zhang, Henghui Zhu, Wei Xiao, Shang-Wen Li, Xiaokai Wei, Andrew Arnold, Xiang Ren
We evaluate PTLM's ability to adapt to new corpora while retaining learned knowledge in earlier corpora.
1 code implementation • Findings (ACL) 2022 • Dejiao Zhang, Wei Xiao, Henghui Zhu, Xiaofei Ma, Andrew O. Arnold
We then define an instance discrimination task regarding this neighborhood and generate the virtual augmentation in an adversarial training manner.
1 code implementation • EMNLP 2021 • Dejiao Zhang, Shang-Wen Li, Wei Xiao, Henghui Zhu, Ramesh Nallapati, Andrew O. Arnold, Bing Xiang
Many recent successes in sentence representation learning have been achieved by simply fine-tuning on the Natural Language Inference (NLI) datasets with triplet loss or siamese loss.
no code implementations • 13 Apr 2021 • Kaiyuan Xu, Christos G. Cassandras, Wei Xiao
The paper considers the problem of controlling Connected and Automated Vehicles (CAVs) traveling through a three-entry roundabout so as to jointly minimize both the travel time and the energy consumption while providing speed-dependent safety guarantees, as well as satisfying velocity and acceleration constraints.
no code implementations • 29 Mar 2021 • Wei Xiao, Calin Belta, Christos G. Cassandras
We define a HOCBF for a safety requirement on the unmodelled system based on the adaptive dynamics and error states, and reformulate the safety-critical control problem as the above mentioned QP.
no code implementations • 14 Jan 2021 • Wei Xiao, Noushin Mehdipour, Anne Collin, Amitai Bin-Nun, Emilio Frazzoli, Radboud Duintjer Tebbens, Calin Belta
We develop optimal control strategies for Autonomous Vehicles (AVs) that are required to meet complex specifications imposed by traffic laws and cultural expectations of reasonable driving behavior.
Autonomous Driving
Robotics
Systems and Control
Systems and Control
1 code implementation • 21 May 2020 • Hao Tang, Hong Liu, Wei Xiao, Nicu Sebe
Then the activated dictionary atoms are assembled and passed to the compound dictionary learning and coding layers.
no code implementations • 6 Dec 2019 • Wei Xiao, Calin A. Belta, Christos G. Cassandras
In this paper, we further improve the feasibility robustness (i. e., feasibility maintenance in the presence of time-varying and unknown unsafe sets) through the definition of a High Order CBF (HOCBF) that works for arbitrary relative degree constraints; this is achieved by a proposed feasibility-guided learning approach.
1 code implementation • 15 Jan 2019 • Hao Tang, Hong Liu, Wei Xiao, Nicu Sebe
Gesture recognition is a hot topic in computer vision and pattern recognition, which plays a vitally important role in natural human-computer interface.
Ranked #1 on
Hand Gesture Recognition
on Cambridge
1 code implementation • 11 Sep 2018 • Hao Tang, Heng Wei, Wei Xiao, Wei Wang, Dan Xu, Yan Yan, Nicu Sebe
In this paper, we propose a novel Deep Micro-Dictionary Learning and Coding Network (DDLCN).
1 code implementation • 5 Dec 2017 • Wei Xiao
This paper investigates the problem of computing nonparametric correlations on the fly for streaming data.
no code implementations • IJCNLP 2017 • Heba Elfardy, Manisha Srivastava, Wei Xiao, Jared Kramer, Tarun Agarwal
The ability to automatically and accurately process customer feedback is a necessity in the private sector.
2 code implementations • 19 Feb 2017 • Wei Xiao, Xiaolin Huang, Jorge Silva, Saba Emrani, Arin Chaudhuri
Robust PCA methods are typically batch algorithms which requires loading all observations into memory before processing.
no code implementations • 16 Jun 2016 • Arin Chaudhuri, Deovrat Kakde, Maria Jahja, Wei Xiao, Hansi Jiang, Seunghyun Kong, Sergiy Peredriy
Support Vector Data Description (SVDD) is a popular outlier detection technique which constructs a flexible description of the input data.
no code implementations • 18 Mar 2016 • Wei Xiao
Fault detection in industrial plants is a hot research area as more and more sensor data are being collected throughout the industrial process.