no code implementations • ECCV 2020 • Hongyuan Du, Linjun Li, Bo Liu, Nuno Vasconcelos
The sparsity of point clouds limits deep learning models on capturing long-range dependencies, which makes features extracted by the models ambiguous.
no code implementations • COLING 2022 • Suhe Wang, Xiaoyuan Liu, Bo Liu, Diwen Dong
Meta-learning has emerged as an effective approach for few-shot text classification.
no code implementations • COLING 2022 • Bo Liu, Wandi Xu, Yuejia Xiang, XiaoJun Wu, Lejian He, BoWen Zhang, Li Zhu
However, we find that noise learning in text classification is relatively underdeveloped: 1. many methods that have been proven effective in the image domain are not explored in text classification, 2. it is difficult to conduct a fair comparison between previous studies as they do experiments in different noise settings.
no code implementations • COLING 2022 • Xin Guan, Biwei Cao, Qingqing Gao, Zheng Yin, Bo Liu, Jiuxin Cao
In this paper, we propose a novel model, Co-Reasoning Network (CORN), which adopts a bidirectional multi-level connection structure based on Co-Attention Transformer.
no code implementations • NAACL (TextGraphs) 2021 • Yuejia Xiang, Yunyan Zhang, Xiaoming Shi, Bo Liu, Wandi Xu, Xi Chen
Then, a selection module is employed to choose those most relative facts in an autoregressive manner, giving a preliminary order for the retrieved facts.
no code implementations • 10 Mar 2023 • Jiaqi Xu, Bo Liu, Yunkuo Chen, Mengli Cheng, Xing Shi
Then, we introduce an attention-based adapter to the encoders, which finetunes the shallow features to improve the model's performance with low GPU memory consumption.
Ranked #1 on
TGIF-Transition
on TGIF-QA
no code implementations • 11 Feb 2023 • Yixing Liu, Yan Sun, Zhengtao Ding, Li Shen, Bo Liu, DaCheng Tao
Federated learning (FL), as a collaborative distributed training paradigm with several edge computing devices under the coordination of a centralized server, is plagued by inconsistent local stationary points due to the heterogeneity of the local partial participation clients, which precipitates the local client-drifts problems and sparks off the unstable and slow convergence, especially on the aggravated heterogeneous dataset.
no code implementations • 7 Dec 2022 • Bo Liu, Rongmei Yang, Hao Wang, Linyuan Lü
This study reports for the first time a complete cavity map of C. elegans neural network, developing a new method for mining higher-order structures that can be applied by researchers in neuroscience, network science and other interdisciplinary fields to explore higher-order structural markers of complex systems.
no code implementations • 21 Nov 2022 • Shiqiang Zhu, Ting Yu, Tao Xu, Hongyang Chen, Schahram Dustdar, Sylvain Gigan, Deniz Gunduz, Ekram Hossain, Yaochu Jin, Feng Lin, Bo Liu, Zhiguo Wan, Ji Zhang, Zhifeng Zhao, Wentao Zhu, Zuoning Chen, Tariq Durrani, Huaimin Wang, Jiangxing Wu, Tongyi Zhang, Yunhe Pan
In recent years, we have witnessed the emergence of intelligent computing, a new computing paradigm that is reshaping traditional computing and promoting digital revolution in the era of big data, artificial intelligence and internet-of-things with new computing theories, architectures, methods, systems, and applications.
no code implementations • 19 Nov 2022 • Bo Liu, Jianfeng Zhang, Wenpeng Luan, Zishuai Liu, Yixin Yu
Load event detection is the fundamental step for the event-based non-intrusive load monitoring (NILM).
no code implementations • 16 Nov 2022 • Biwei Cao, Jiuxin Cao, Jie Gui, Jiayun Shen, Bo Liu, Lei He, Yuan Yan Tang, James Tin-Yau Kwok
Such approaches, however, ignore the VE's unique nature of relation inference between the premise and hypothesis.
1 code implementation • 13 Nov 2022 • Jie Ren, Xidong Feng, Bo Liu, Xuehai Pan, Yao Fu, Luo Mai, Yaodong Yang
TorchOpt further provides a high-performance distributed execution runtime.
no code implementations • 11 Nov 2022 • Yunpeng Zhao, Fugen Zhou, Bin Guo, Bo Liu
The proposed spatial temporal graph convolution block directly exploits BOLD time series as input features, which provides an interesting view for rsfMRI-based preclinical AD diagnosis.
no code implementations • 20 Oct 2022 • Guangsheng Zhang, Bo Liu, Huan Tian, Tianqing Zhu, Ming Ding, Wanlei Zhou
We investigate several representative model architectures from CNNs to Transformers, and show that Transformers are generally more vulnerable to privacy attacks than CNNs.
1 code implementation • 10 Oct 2022 • Zifan Xu, Bo Liu, Xuesu Xiao, Anirudh Nair, Peter Stone
Deep reinforcement learning (RL) has brought many successes for autonomous robot navigation.
no code implementations • 19 Sep 2022 • Mao Ye, Bo Liu, Stephen Wright, Peter Stone, Qiang Liu
Bilevel optimization (BO) is useful for solving a variety of important machine learning problems including but not limited to hyperparameter optimization, meta-learning, continual learning, and reinforcement learning.
no code implementations • 18 Sep 2022 • Lei Wang, Fangfang Liang, Bincheng Wang, Bo Liu
Gait recognition aims at identifying individual-specific walking patterns, which is highly dependent on the observation of the different periodic movements of each body part.
2 code implementations • 17 Aug 2022 • Bo Liu, Yihao Feng, Qiang Liu, Peter Stone
Furthermore, we introduce the metric residual network (MRN) that deliberately decomposes the action-value function Q(s, a, g) into the negated summation of a metric plus a residual asymmetric component.
no code implementations • 25 Jul 2022 • Feng Yang, Xingle Zhang, Bo Liu
Among the current popular MOT methods based on deep learning, Detection Based Tracking (DBT) is the most widely used in industry, and the performance of them depend on their object detection network.
3 code implementations • 21 Jun 2022 • Jiayi Weng, Min Lin, Shengyi Huang, Bo Liu, Denys Makoviichuk, Viktor Makoviychuk, Zichen Liu, Yufan Song, Ting Luo, Yukun Jiang, Zhongwen Xu, Shuicheng Yan
EnvPool is open-sourced at https://github. com/sail-sg/envpool.
1 code implementation • 23 May 2022 • Jiazhi Xu, Sheng Huang, Fengtao Zhou, Luwen Huangfu, Daniel Zeng, Bo Liu
Then, the MLIC models of fewer categories are trained with these sub-tasks in parallel for respectively learning the joint patterns and the category-specific patterns of labels.
no code implementations • 6 May 2022 • Bo Liu
With the rapid development of mobile Internet and big data, a huge amount of data is generated in the network, but the data that users are really interested in a very small portion.
no code implementations • 11 Apr 2022 • Akarsh Kumar, Bo Liu, Risto Miikkulainen, Peter Stone
GESMR co-evolves a population of solutions and a population of MRs, such that each MR is assigned to a group of solutions.
no code implementations • 30 Mar 2022 • Bo Liu, Lihua Hu, Qiulei Dong, Zhanyi Hu
How to generate pseudo labels for unseen-class samples and how to use such usually noisy pseudo labels are two critical issues in transductive learning.
1 code implementation • 24 Mar 2022 • Bo Liu, Qiang Liu, Peter Stone
As intelligent agents become autonomous over longer periods of time, they may eventually become lifelong counterparts to specific people.
no code implementations • 17 Mar 2022 • Bo Liu, Qiulei Dong, Zhanyi Hu
Firstly, we propose a Semantic-diversity transfer Network (SetNet) addressing the first two limitations, where 1) a multiple-attention architecture and a diversity regularizer are proposed to learn multiple local visual features that are more consistent with semantic attributes and 2) a projector ensemble that geometrically takes diverse local features as inputs is proposed to model visual-semantic relations from diverse local perspectives.
no code implementations • 13 Mar 2022 • Dayong Ye, Sheng Shen, Tianqing Zhu, Bo Liu, Wanlei Zhou
The experimental results show the method to be an effective and timely defense against both membership inference and model inversion attacks with no reduction in accuracy.
no code implementations • 13 Mar 2022 • Dayong Ye, Tianqing Zhu, Shuai Zhou, Bo Liu, Wanlei Zhou
In launching a contemporary model inversion attack, the strategies discussed are generally based on either predicted confidence score vectors, i. e., black-box attacks, or the parameters of a target model, i. e., white-box attacks.
no code implementations • 21 Feb 2022 • Zhenxin Wu, Jiazheng Gong, Kecen Guo, Guanye Liang, Qingliang Che, Bo Liu
Aspect-based sentiment classification (ABSC) is a very challenging subtask of sentiment analysis (SA) and suffers badly from the class-imbalance.
no code implementations • 19 Feb 2022 • Shahaf S. Shperberg, Bo Liu, Peter Stone
When humans make catastrophic mistakes, they are expected to learn never to repeat them, such as a toddler who touches a hot stove and immediately learns never to do so again.
1 code implementation • 12 Feb 2022 • Fan Lu, Qimai Li, Bo Liu, Xiao-Ming Wu, Xiaotong Zhang, Fuyu Lv, Guli Lin, Sen Li, Taiwei Jin, Keping Yang
Our approach can be seamlessly integrated with existing latent space based methods and be potentially applied in any product retrieval method that uses purchase history to model user preferences.
no code implementations • 1 Feb 2022 • Daoming Lyu, Bo Liu, Jianshu Chen
We consider the problem of multi-task reasoning (MTR), where an agent can solve multiple tasks via (first-order) logic reasoning.
no code implementations • 24 Jan 2022 • Liangliang Xu, Daoming Lyu, Yangchen Pan, Aiwen Jiang, Bo Liu
This paper proposes Short-Term VOlatility-controlled Policy Search (STOPS), a novel algorithm that solves risk-averse problems by learning from short-term trajectories instead of long-term trajectories.
no code implementations • 14 Jan 2022 • Bo Liu, Lihua Hu, Zhanyi Hu, Qiulei Dong
This work is a systematical analysis on the so-called hard class problem in zero-shot learning (ZSL), that is, some unseen classes disproportionally affect the ZSL performances than others, as well as how to remedy the problem by detecting and exploiting hard classes.
no code implementations • 31 Dec 2021 • Zheng Zhang, Liangliang Xu, Levent Yilmaz, Bo Liu
Despite recent advances in modern machine learning algorithms, the opaqueness of their underlying mechanisms continues to be an obstacle in adoption.
BIG-bench Machine Learning
Explainable artificial intelligence
+2
1 code implementation • 31 Dec 2021 • Bo Liu, Xidong Feng, Jie Ren, Luo Mai, Rui Zhu, Haifeng Zhang, Jun Wang, Yaodong Yang
Gradient-based Meta-RL (GMRL) refers to methods that maintain two-level optimisation procedures wherein the outer-loop meta-learner guides the inner-loop gradient-based reinforcement learner to achieve fast adaptations.
1 code implementation • NeurIPS 2021 • Xidong Feng, Oliver Slumbers, Ziyu Wan, Bo Liu, Stephen Mcaleer, Ying Wen, Jun Wang, Yaodong Yang
When solving two-player zero-sum games, multi-agent reinforcement learning (MARL) algorithms often create populations of agents where, at each iteration, a new agent is discovered as the best response to a mixture over the opponent population.
no code implementations • 30 Nov 2021 • Virginia Adams, Hoo-chang Shin, Carol Anderson, Bo Liu, Anas Abidin
We extend our BERT-based approach to the entity linking task.
no code implementations • 30 Nov 2021 • Carol Anderson, Bo Liu, Anas Abidin, Hoo-chang Shin, Virginia Adams
Social media posts contain potentially valuable information about medical conditions and health-related behavior.
no code implementations • 30 Nov 2021 • Virginia Adams, Hoo-chang Shin, Carol Anderson, Bo Liu, Anas Abidin
In Track-1 of the BioCreative VII Challenge participants are asked to identify interactions between drugs/chemicals and proteins.
no code implementations • 25 Nov 2021 • Kingsley Nweye, Bo Liu, Peter Stone, Zoltan Nagy
Building upon prior research that highlighted the need for standardizing environments for building control research, and inspired by recently introduced challenges for real life reinforcement learning control, here we propose a non-exhaustive set of nine real world challenges for reinforcement learning control in grid-interactive buildings.
Multi-agent Reinforcement Learning
reinforcement-learning
+1
no code implementations • 24 Nov 2021 • Chen Huang, Ruisi He, Bo Ai, Andreas F. Molisch, Buon Kiong Lau, Katsuyuki Haneda, Bo Liu, Cheng-Xiang Wang, Mi Yang, Claude Oestges, Zhangdui Zhong
To provide higher data rates, as well as better coverage, cost efficiency, security, adaptability, and scalability, the 5G and beyond 5G networks are developed with various artificial intelligence techniques.
no code implementations • 24 Nov 2021 • Chen Huang, Ruisi He, Bo Ai, Andreas F. Molisch, Buon Kiong Lau, Katsuyuki Haneda, Bo Liu, Cheng-Xiang Wang, Mi Yang, Claude Oestges, Zhangdui Zhong
This two-part paper investigates the application of artificial intelligence (AI) and in particular machine learning (ML) to the study of wireless propagation channels.
2 code implementations • NeurIPS 2021 • Bo Liu, Xingchao Liu, Xiaojie Jin, Peter Stone, Qiang Liu
The goal of multi-task learning is to enable more efficient learning than single task learning by sharing model structures for a diverse set of tasks.
1 code implementation • ICCV 2021 • Zhirui Dai, Yuepeng Jiang, Yi Li, Bo Liu, Antoni B. Chan, Nuno Vasconcelos
A dataset of crowd scenes with people annotations under a bird's eye view (BEV) and ground truth for metric distances is introduced, and several measures for the evaluation of social distance detection systems are proposed.
no code implementations • 9 Oct 2021 • Qishen Ha, Bo Liu, Hongwei Zhang
We present our solutions to the Google Landmark Challenges 2021, for both the retrieval and the recognition tracks.
no code implementations • 4 Oct 2021 • Bo Li, Peng Qi, Bo Liu, Shuai Di, Jingen Liu, JiQuan Pei, JinFeng Yi, BoWen Zhou
In this review, we provide AI practitioners with a comprehensive guide for building trustworthy AI systems.
no code implementations • 1 Oct 2021 • Ahmet F. Budak, Prateek Bhansali, Bo Liu, Nan Sun, David Z. Pan, Chandramouli V. Kashyap
The key contributions of this paper are a novel sample-efficient two-stage deep learning optimization framework leveraging RL actor-critic algorithms, and a recipe to extend it on large industrial circuits using critical device identification.
no code implementations • 24 Aug 2021 • Brandon Leung, Chih-Hui Ho, Amir Persekian, David Orozco, Yen Chang, Erik Sandstrom, Bo Liu, Nuno Vasconcelos
Second, it is used to show that the augmentation of in the wild datasets, such as ImageNet, with in the lab data, such as OOWL500, can significantly decrease these biases, leading to object recognizers of improved generalization.
no code implementations • 13 Aug 2021 • Daoming Lyu, Fangkai Yang, Hugh Kwon, Wen Dong, Levent Yilmaz, Bo Liu
Human-robot interactive decision-making is increasingly becoming ubiquitous, and trust is an influential factor in determining the reliance on autonomy.
3 code implementations • 8 Jul 2021 • Bo Liu, Chaowei Tan, Jiazhou Wang, Tao Zeng, Huasong Shan, Houpu Yao, Heng Huang, Peng Dai, Liefeng Bo, Yanqing Chen
We use this platform to demonstrate our research and development results on privacy preserving machine learning algorithms.
no code implementations • 8 Jul 2021 • Shuang Deng, Qiulei Dong, Bo Liu, Zhanyi Hu
The proposed network is iteratively updated with its predicted pseudo labels, where a superpoint generation module is introduced for extracting superpoints from 3D point clouds, and a pseudo-label optimization module is explored for automatically assigning pseudo labels to the unlabeled points under the constraint of the extracted superpoints.
1 code implementation • 7 Jul 2021 • Shuang Deng, Bo Liu, Qiulei Dong, Zhanyi Hu
Many recent works show that a spatial manipulation module could boost the performances of deep neural networks (DNNs) for 3D point cloud analysis.
no code implementations • 1 Jul 2021 • Bo Liu, Shuang Deng, Qiulei Dong, Zhanyi Hu
In this work, a language-level Semantics Conditioned framework for 3D Point cloud segmentation, called SeCondPoint, is proposed, where language-level semantics are introduced to condition the modeling of point feature distribution as well as the pseudo-feature generation, and a feature-geometry-based mixup approach is further proposed to facilitate the distribution learning.
no code implementations • CVPR 2021 • Kaihua Zhang, Mingliang Dong, Bo Liu, Xiao-Tong Yuan, Qingshan Liu
This dense correlation volumes enables the network to accurately discover the structured pair-wise pixel similarities among the common salient objects.
no code implementations • ACL 2021 • Li-Ming Zhan, Haowen Liang, Bo Liu, Lu Fan, Xiao-Ming Wu, Albert Y. S. Lam
Since the distribution of outlier utterances is arbitrary and unknown in the training stage, existing methods commonly rely on strong assumptions on data distribution such as mixture of Gaussians to make inference, resulting in either complex multi-step training procedures or hand-crafted rules such as confidence threshold selection for outlier detection.
1 code implementation • 14 Jun 2021 • Jingru Yi, Pengxiang Wu, Hui Tang, Bo Liu, Qiaoying Huang, Hui Qu, Lianyi Han, Wei Fan, Daniel J. Hoeppner, Dimitris N. Metaxas
To deal with this problem, in this paper, we propose an object-guided instance segmentation method.
1 code implementation • 4 Jun 2021 • Xidong Feng, Oliver Slumbers, Ziyu Wan, Bo Liu, Stephen Mcaleer, Ying Wen, Jun Wang, Yaodong Yang
When solving two-player zero-sum games, multi-agent reinforcement learning (MARL) algorithms often create populations of agents where, at each iteration, a new agent is discovered as the best response to a mixture over the opponent population.
1 code implementation • 18 May 2021 • Bo Liu, Qiang Liu, Peter Stone, Animesh Garg, Yuke Zhu, Animashree Anandkumar
Specifically, we 1) adopt the attention mechanism for both the coach and the players; 2) propose a variational objective to regularize learning; and 3) design an adaptive communication method to let the coach decide when to communicate with the players.
Multi-agent Reinforcement Learning
reinforcement-learning
+2
no code implementations • 1 May 2021 • Bo Liu, Haoxiang Li, Hao Kang, Nuno Vasconcelos, Gang Hua
A consistency loss has been introduced to limit the impact from unlabeled data while leveraging them to update the feature embedding.
no code implementations • 1 May 2021 • Bo Liu, Mandar Dixit, Roland Kwitt, Gang Hua, Nuno Vasconcelos
In the absence of dense pose sampling in image space, these latent space trajectories provide cross-modal guidance for learning.
no code implementations • 1 May 2021 • Bo Liu, Haoxiang Li, Hao Kang, Gang Hua, Nuno Vasconcelos
It is shown that, unlike class-balanced sampling, this is an adversarial augmentation strategy.
no code implementations • ICCV 2021 • Bo Liu, Haoxiang Li, Hao Kang, Gang Hua, Nuno Vasconcelos
A new learning algorithm is then proposed for GeometrIc Structure Transfer (GIST), with resort to a combination of loss functions that combine class-balanced and random sampling to guarantee that, while overfitting to the popular classes is restricted to geometric parameters, it is leveraged to transfer class geometry from popular to few-shot classes.
no code implementations • 12 Mar 2021 • Bo Liu, Ming Ding, Hanyu Xue, Tianqing Zhu, Dayong Ye, Li Song, Wanlei Zhou
The excessive use of images in social networks, government databases, and industrial applications has posed great privacy risks and raised serious concerns from the public.
no code implementations • 2 Mar 2021 • Yunqian Wen, Li Song, Bo Liu, Ming Ding, Rong Xie
We propose IdentityDP, a face anonymization framework that combines a data-driven deep neural network with a differential privacy (DP) mechanism.
no code implementations • 25 Feb 2021 • Bo Liu
A motivating example is given to explain the reason for the existence of spurious local minima: each output neuron of deep fully-connected networks and CNNs with piecewise linear activations produces a continuous piecewise linear (CPWL) output, and different pieces of CPWL output can fit disjoint groups of data samples when minimizing the empirical risk.
1 code implementation • 18 Feb 2021 • Bo Liu, Li-Ming Zhan, Li Xu, Lin Ma, Yan Yang, Xiao-Ming Wu
We show that SLAKE can be used to facilitate the development and evaluation of Med-VQA systems.
1 code implementation • NeurIPS 2020 • Lemeng Wu, Bo Liu, Peter Stone, Qiang Liu
We propose firefly neural architecture descent, a general framework for progressively and dynamically growing neural networks to jointly optimize the networks' parameters and architectures.
no code implementations • 13 Jan 2021 • Yunqi Li, Shuyuan Xu, Bo Liu, Zuohui Fu, Shuchang Liu, Xu Chen, Yongfeng Zhang
This paper proposes a discrete knowledge graph (KG) embedding (DKGE) method, which projects KG entities and relations into the Hamming space based on a computationally tractable discrete optimization algorithm, to solve the formidable storage and computation cost challenges in traditional continuous graph embedding methods.
no code implementations • 1 Jan 2021 • Bo Liu, Qiang Liu, Peter Stone, Animesh Garg, Yuke Zhu, Anima Anandkumar
The performance of our method is comparable or even better than the setting where all players have a full view of the environment, but no coach.
no code implementations • ICCV 2021 • Jingyi Cao, Bo Liu, Yunqian Wen, Rong Xie, Li Song
The popularization of intelligent devices including smartphones and surveillance cameras results in more serious privacy issues.
no code implementations • ICCV 2021 • Kaihua Zhang, Zicheng Zhao, Dong Liu, Qingshan Liu, Bo Liu
The popular unsupervised video object segmentation methods fuse the RGB frame and optical flow via a two-stream network.
Ranked #3 on
Unsupervised Video Object Segmentation
on FBMS test
no code implementations • 3 Dec 2020 • Bo Liu, Ranglei Wu, Xiuli Bi, Bin Xiao, Weisheng Li, Guoyin Wang, Xinbo Gao
The unfixed encoder autonomously learns the image fingerprints that differentiate between the tampered and non-tampered regions, whereas the fixed encoder intentionally provides the direction information that assists the learning and detection of the network.
no code implementations • NeurIPS 2020 • Deheng Ye, Guibin Chen, Wen Zhang, Sheng Chen, Bo Yuan, Bo Liu, Jia Chen, Zhao Liu, Fuhao Qiu, Hongsheng Yu, Yinyuting Yin, Bei Shi, Liang Wang, Tengfei Shi, Qiang Fu, Wei Yang, Lanxiao Huang, Wei Liu
However, existing work falls short in handling the raw game complexity caused by the explosion of agent combinations, i. e., lineups, when expanding the hero pool in case that OpenAI's Dota AI limits the play to a pool of only 17 heroes.
no code implementations • 24 Nov 2020 • Bo Liu, Ming Ding, Sina Shaham, Wenny Rahayu, Farhad Farokhi, Zihuai Lin
The newly emerged machine learning (e. g. deep learning) methods have become a strong driving force to revolutionize a wide range of industries, such as smart healthcare, financial technology, and surveillance systems.
no code implementations • 13 Nov 2020 • Fan Yu, Zhuoyuan Yao, Xiong Wang, Keyu An, Lei Xie, Zhijian Ou, Bo Liu, Xiulin Li, Guanqiong Miao
Automatic speech recognition (ASR) has been significantly advanced with the use of deep learning and big data.
Sound Audio and Speech Processing
no code implementations • NeurIPS 2021 • Sihang Guo, Ruohan Zhang, Bo Liu, Yifeng Zhu, Mary Hayhoe, Dana Ballard, Peter Stone
1) How similar are the visual representations learned by RL agents and humans when performing the same task?
1 code implementation • COLING 2020 • Ziheng Zhang, Jiaoyan Chen, Xi Chen, Hualuo Liu, Yuejia Xiang, Bo Liu, Yefeng Zheng
Embedding-based entity alignment has been widely investigated in recent years, but most proposed methods still rely on an ideal supervised learning setting with a large number of unbiased seed mappings for training and validation, which significantly limits their usage.
no code implementations • 17 Oct 2020 • Mariusz Bojarski, Chenyi Chen, Joyjit Daw, Alperen Değirmenci, Joya Deri, Bernhard Firner, Beat Flepp, Sachin Gogri, Jesse Hong, Lawrence Jackel, Zhenhua Jia, BJ Lee, Bo Liu, Fei Liu, Urs Muller, Samuel Payne, Nischal Kota Nagendra Prasad, Artem Provodin, John Roach, Timur Rvachov, Neha Tadimeti, Jesper van Engelen, Haiguang Wen, Eric Yang, Zongyi Yang
Four years ago, an experimental system known as PilotNet became the first NVIDIA system to steer an autonomous car along a roadway.
4 code implementations • 11 Oct 2020 • Qishen Ha, Bo Liu, Fuxu Liu
We present our winning solution to the SIIM-ISIC Melanoma Classification Challenge.
2 code implementations • 11 Oct 2020 • Qishen Ha, Bo Liu, Fuxu Liu, Peiyuan Liao
We present our third place solution to the Google Landmark Recognition 2020 competition.
1 code implementation • 21 Sep 2020 • Fei Xie, Wankou Yang, Bo Liu, Kaihua Zhang, Wanli Xue, WangMeng Zuo
Existing visual object tracking usually learns a bounding-box based template to match the targets across frames, which cannot accurately learn a pixel-wise representation, thereby being limited in handling severe appearance variations.
no code implementations • 17 Sep 2020 • Zhenyu Wang, Z. -X. Li, Ruifang Wang, Bo Liu, Hao Meng, Yunshan Cao, Peng Yan
We propose a new method to generate magnetic skyrmions through spin-wave focusing in chiral ferromagnets. A lens is constructed to focus spin waves by a curved interface between two ferromagnetic thin films with different perpendicular magnetic anisotropies.
Mesoscale and Nanoscale Physics
no code implementations • 14 Sep 2020 • Daoming Lyu, Qi Qi, Mohammad Ghavamzadeh, Hengshuai Yao, Tianbao Yang, Bo Liu
To achieve variance-reduced off-policy-stable policy optimization, we propose an algorithm family that is memory-efficient, stochastically variance-reduced, and capable of learning from off-policy samples.
no code implementations • 29 Aug 2020 • Bo Liu, Qiulei Dong, Zhanyi Hu
In addition, considering that the visual features from categorization CNNs are generally inconsistent with their semantic features, a simple feature selection strategy is introduced for extracting more compact semantic visual features.
1 code implementation • 17 Aug 2020 • Jingru Yi, Pengxiang Wu, Bo Liu, Qiaoying Huang, Hui Qu, Dimitris Metaxas
To address this issue, in this work we extend the horizontal keypoint-based object detector to the oriented object detection task.
Ranked #1 on
Object Detection
on DOTA
no code implementations • ECCV 2020 • Hongduan Tian, Bo Liu, Xiao-Tong Yuan, Qingshan Liu
To remedy this deficiency, we propose a network pruning based meta-learning approach for overfitting reduction via explicitly controlling the capacity of network.
1 code implementation • 4 Jul 2020 • Chuan Ma, Jun Li, Ming Ding, Bo Liu, Kang Wei, Jian Weng, H. Vincent Poor
Generative adversarial network (GAN) has attracted increasing attention recently owing to its impressive ability to generate realistic samples with high privacy protection.
no code implementations • 15 Jun 2020 • Bo Liu
The existence of local minima for one-hidden-layer ReLU networks has been investigated theoretically in [8].
1 code implementation • 6 Jun 2020 • Bo Liu, Ian Gemp, Mohammad Ghavamzadeh, Ji Liu, Sridhar Mahadevan, Marek Petrik
In this paper, we introduce proximal gradient temporal difference learning, which provides a principled way of designing and analyzing true stochastic gradient temporal difference learning algorithms.
no code implementations • 6 Jun 2020 • Daoming Lyu, Bo Liu, Matthieu Geist, Wen Dong, Saad Biaz, Qi. Wang
Policy evaluation algorithms are essential to reinforcement learning due to their ability to predict the performance of a policy.
no code implementations • 6 Jun 2020 • Bo Liu, Ji Liu, Mohammad Ghavamzadeh, Sridhar Mahadevan, Marek Petrik
In this paper, we analyze the convergence rate of the gradient temporal difference learning (GTD) family of algorithms.
no code implementations • NeurIPS 2012 • Bo Liu, Sridhar Mahadevan, Ji Liu
We present a novel $l_1$ regularized off-policy convergent TD-learning method (termed RO-TD), which is able to learn sparse representations of value functions with low computational complexity.
no code implementations • 31 May 2020 • Feifan Lv, Bo Liu, Feng Lu
This paper proposes a new light-weight convolutional neural network (5k parameters) for non-uniform illumination image enhancement to handle color, exposure, contrast, noise and artifacts, etc., simultaneously and effectively.
no code implementations • 29 May 2020 • Rongfang Wang, Fan Ding, Licheng Jiao, Jia-Wei Chen, Bo Liu, Wenping Ma, Mi Wang
We verify our light-weighted neural network on four sets of bitemporal SAR images.
1 code implementation • CVPR 2020 • Bo Liu, Hao Kang, Haoxiang Li, Gang Hua, Nuno Vasconcelos
It is argued that the classic softmax classifier is a poor solution for open-set recognition, since it tends to overfit on the training classes.
no code implementations • 22 May 2020 • Jia-Wei Chen, Rongfang Wang, Fan Ding, Bo Liu, Licheng Jiao, Jie Zhang
Furthermore, to verify the generalization of the proposed method, we apply our proposed method to the cross-dataset bitemporal SAR image change detection, where the MSSP network (MSSP-Net) is trained on a dataset and then applied to an unknown testing dataset.
1 code implementation • 22 Apr 2020 • Shangtong Zhang, Bo Liu, Shimon Whiteson
We present a mean-variance policy iteration (MVPI) framework for risk-averse control in a discounted infinite horizon MDP optimizing the variance of a per-step reward random variable.
no code implementations • 31 Mar 2020 • Xuesu Xiao, Bo Liu, Garrett Warnell, Jonathan Fink, Peter Stone
Existing autonomous robot navigation systems allow robots to move from one point to another in a collision-free manner.
1 code implementation • CVPR 2020 • Chih-Hui Ho, Bo Liu, Tz-Ying Wu, Nuno Vasconcelos
Multiview recognition has been well studied in the literature and achieves decent performance in object recognition and retrieval task.
1 code implementation • 26 Mar 2020 • Hengchao Wang, Bo Liu, Yan Zhang, Fan Jiang, Yuwei Ren, Lijuan Yin, Hangwei Liu, Sen Wang, Wei Fan
We show that corrected third-generation data can be used to count k-mer frequencies and estimate genome size reliably, in replacement of using second-generation data.
1 code implementation • CVPR 2020 • Kaihua Zhang, Tengpeng Li, Shiwen Shen, Bo Liu, Jin Chen, Qingshan Liu
Second, we develop an attention graph clustering algorithm to discriminate the common objects from all the salient foreground objects in an unsupervised fashion.
no code implementations • 13 Mar 2020 • Kaihua Zhang, Long Wang, Dong Liu, Bo Liu, Qingshan Liu, Zhu Li
We present an end-to-end network which stores short- and long-term video sequence information preceding the current frame as the temporal memories to address the temporal modeling in VOS.
One-shot visual object segmentation
Semantic Segmentation
+2
no code implementations • 7 Mar 2020 • Bo Liu, Mengya Shen
Geometry and topology of decision regions are closely related with classification performance and robustness against adversarial attacks.
no code implementations • 12 Feb 2020 • Bo Liu
For one-hidden-layer ReLU networks, we prove that all differentiable local minima are global inside differentiable regions.
1 code implementation • ICML 2020 • Shangtong Zhang, Bo Liu, Shimon Whiteson
Namely, the optimization problem in GenDICE is not a convex-concave saddle-point problem once nonlinearity in optimization variable parameterization is introduced to ensure positivity, so any primal-dual algorithm is not guaranteed to converge or find the desired solution.
1 code implementation • 2 Jan 2020 • Jin Chen, Huihui Song, Kaihua Zhang, Bo Liu, Qingshan Liu
Due to a variety of motions across different frames, it is highly challenging to learn an effective spatiotemporal representation for accurate video saliency prediction (VSP).
1 code implementation • 29 Nov 2019 • Kaihua Zhang, Jin Chen, Bo Liu, Qingshan Liu
With the multi-resolution features of the relevant images as input, we design a spatial modulator to learn a mask for each image.
1 code implementation • 21 Nov 2019 • Ligong Han, Ruijiang Gao, Mun Kim, Xin Tao, Bo Liu, Dimitris Metaxas
Conditional generative adversarial networks have shown exceptional generation performance over the past few years.
no code implementations • 20 Nov 2019 • Jingru Yi, Hui Tang, Pengxiang Wu, Bo Liu, Daniel J. Hoeppner, Dimitris N. Metaxas, Lianyi Han, Wei Fan
Along with the instance normalization, the model is able to recover the target object distribution and suppress the distribution of neighboring attached objects.
1 code implementation • 19 Nov 2019 • Yuxiang Ren, Bo Liu, Chao Huang, Peng Dai, Liefeng Bo, Jiawei Zhang
The derived node representations can be used to serve various downstream tasks, such as node classification and node clustering.
Ranked #7 on
Heterogeneous Node Classification
on DBLP (PACT) 14k
no code implementations • 18 Nov 2019 • Ke He, Bo Liu, Yu Zhang, Andrew Ling, Dian Gu
In this paper, we firstly propose the FeCaffe, i. e. FPGA-enabled Caffe, a hierarchical software and hardware design methodology based on the Caffe to enable FPGA to support mainline deep learning development features, e. g. training and inference with Caffe.
1 code implementation • ICML 2020 • Shangtong Zhang, Bo Liu, Hengshuai Yao, Shimon Whiteson
With the help of the emphasis critic and the canonical value function critic, we show convergence for COF-PAC, where the critics are linear and the actor can be nonlinear.
1 code implementation • 28 Sep 2019 • Yunbo Wang, Bo Liu, Jiajun Wu, Yuke Zhu, Simon S. Du, Li Fei-Fei, Joshua B. Tenenbaum
A major difficulty of solving continuous POMDPs is to infer the multi-modal distribution of the unobserved true states and to make the planning algorithm dependent on the perceived uncertainty.
no code implementations • 25 Sep 2019 • Hongduan Tian, Bo Liu, Xiao-Tong Yuan, Qingshan Liu
Meta-Learning has achieved great success in few-shot learning.
no code implementations • 18 Sep 2019 • Daoming Lyu, Fangkai Yang, Bo Liu, Steven Gustafson
Recent successes of Reinforcement Learning (RL) allow an agent to learn policies that surpass human experts but suffers from being time-hungry and data-hungry.
no code implementations • 9 Sep 2019 • Bo Liu, Yi Liang
We consider in this paper the optimal approximations of convex univariate functions with feed-forward Relu neural networks.
no code implementations • 19 Aug 2019 • Yanshan Xiao, HuaiPei Wang, Bo Liu
Learning with label proportions (LLP), which is a learning task that only provides unlabeled data in bags and each bag's label proportion, has widespread successful applications in practice.
1 code implementation • 22 Jul 2019 • Jingru Yi, Pengxiang Wu, Qiaoying Huang, Hui Qu, Bo Liu, Daniel J. Hoeppner, Dimitris N. Metaxas
In this paper, we propose a new box-based cell instance segmentation method.
no code implementations • 17 Jun 2019 • Daoming Lyu, Fangkai Yang, Bo Liu, Steven Gustafson
Conventional reinforcement learning (RL) allows an agent to learn policies via environmental rewards only, with a long and slow learning curve, especially at the beginning stage.
no code implementations • 6 Jun 2019 • Qiulei Dong, Bo Liu, Zhanyi Hu
Recently DCNN (Deep Convolutional Neural Network) has been advocated as a general and promising modelling approach for neural object representation in primate inferotemporal cortex.
no code implementations • 30 May 2019 • Xiang Li, Chan Lu, Danni Cheng, Wei-Hong Li, Mei Cao, Bo Liu, Jiechao Ma, Wei-Shi Zheng
Visible watermark plays an important role in image copyright protection and the robustness of a visible watermark to an attack is shown to be essential.
no code implementations • 7 May 2019 • Wen Dong, Bo Liu, Fan Yang
However, such real-world complex system control is difficult to achieve because of high-dimensional and non-linear system dynamics, and the exploding state and action spaces for the decision maker.
1 code implementation • WS 2019 • Bo Liu
We present our 7th place solution to the Gendered Pronoun Resolution challenge, which uses BERT without fine-tuning and a novel augmentation strategy designed for contextual embedding token-level tasks.
no code implementations • ICLR 2019 • Ishan Durugkar, Bo Liu, Peter Stone
Temporal Difference learning with function approximation has been widely used recently and has led to several successful results.
no code implementations • 24 Feb 2019 • Sina Shaham, Ming Ding, Bo Liu, Shuping Dang, Zihuai Lin, Jun Li
By introducing a new formulation of the problem, we are able to apply machine learning algorithms for clustering the trajectories and propose to use $k$-means algorithm for this purpose.
no code implementations • 6 Feb 2019 • Bo Liu, Hongyu Wu, Yingchen Zhang, Rui Yang, Andrey Bernstein
It can estimate the system state in a low-observability system and has robust estimates without the bad data detection process in the face of multiple bad data.
no code implementations • 23 Jan 2019 • Bo Liu, Wenhao Chi, Xinran Li, Peng Li, Wenhua Liang, Haiping Liu, Wei Wang, Jianxing He
Lung cancer is the commonest cause of cancer deaths worldwide, and its mortality can be reduced significantly by performing early diagnosis and screening.
1 code implementation • 5 Dec 2018 • Bo Liu, Shuyang Shi, Yongshang Wu, Daniel Thomas, Laura Symul, Emma Pierson, Jure Leskovec
Predicting pregnancy has been a fundamental problem in women's health for more than 50 years.
1 code implementation • ICCV 2019 • Lezi Wang, Ziyan Wu, Srikrishna Karanam, Kuan-Chuan Peng, Rajat Vikram Singh, Bo Liu, Dimitris N. Metaxas
Recent developments in gradient-based attention modeling have seen attention maps emerge as a powerful tool for interpreting convolutional neural networks.
3 code implementations • 5 Nov 2018 • Shangtong Zhang, Borislav Mavrin, Linglong Kong, Bo Liu, Hengshuai Yao
In this paper, we propose the Quantile Option Architecture (QUOTA) for exploration based on recent advances in distributional reinforcement learning (RL).
no code implementations • 2 Nov 2018 • Bo Liu, Luwan Zhang, Ji Liu
To make the problem computationally tractable, we propose a novel algorithm, termed as Optimal Denoising Dantzig Selector (ODDS), to approximately estimate the optimal denoising matrix.
no code implementations • 31 Oct 2018 • Daoming Lyu, Fangkai Yang, Bo Liu, Steven Gustafson
The three components cross-fertilize each other and eventually converge to an optimal symbolic plan along with the learned subtasks, bringing together the advantages of long-term planning capability with symbolic knowledge and end-to-end reinforcement learning directly from a high-dimensional sensory input.
no code implementations • NeurIPS 2018 • Bo Liu, Tengyang Xie, Yangyang Xu, Mohammad Ghavamzadeh, Yin-Lam Chow, Daoming Lyu, Daesub Yoon
Risk management in dynamic decision problems is a primary concern in many fields, including financial investment, autonomous driving, and healthcare.
2 code implementations • 21 Aug 2018 • Tianqi Liu, Bo Liu
This paper presents our 7th place solution to the second YouTube-8M video understanding competition which challenges participates to build a constrained-size model to classify millions of YouTube videos into thousands of classes.
no code implementations • 16 May 2018 • Sina Shaham, Ming Ding, Bo Liu, Zihuai Lin, Jun Li
In this paper, we incorporate a new type of side information based on consecutive location changes of users and propose a new metric called transition-entropy to investigate the location privacy preservation, followed by two algorithms to improve the transition-entropy for a given dummy generation algorithm.
no code implementations • 20 Apr 2018 • Fangkai Yang, Daoming Lyu, Bo Liu, Steven Gustafson
Reinforcement learning and symbolic planning have both been used to build intelligent autonomous agents.
no code implementations • 13 Jan 2018 • Sheng-Kai Liao, Wen-Qi Cai, Johannes Handsteiner, Bo Liu, Juan Yin, Liang Zhang, Dominik Rauch, Matthias Fink, Ji-Gang Ren, Wei-Yue Liu, Yang Li, Qi Shen, Yuan Cao, Feng-Zhi Li, Jian-Feng Wang, Yong-Mei Huang, Lei Deng, Tao Xi, Lu Ma, Tai Hu, Li Li, Nai-Le Liu, Franz Koidl, Peiyuan Wang, Yu-Ao Chen, Xiang-Bin Wang, Michael Steindorfer, Georg Kirchner, Chao-Yang Lu, Rong Shu, Rupert Ursin, Thomas Scheidl, Cheng-Zhi Peng, Jian-Yu Wang, Anton Zeilinger, Jian-Wei Pan
This was on the one hand the transmission of images in a one-time pad configuration from China to Austria as well as from Austria to China.
Quantum Physics
no code implementations • CVPR 2018 • Bo Liu, Xudong Wang, Mandar Dixit, Roland Kwitt, Nuno Vasconcelos
A new architecture, denoted the FeATure TransfEr Network (FATTEN), is proposed for the modeling of feature trajectories induced by variations of object pose.
no code implementations • 17 Apr 2017 • Bo Liu, Daoming Lyu, Wen Dong, Saad Biaz
Temporal difference learning and Residual Gradient methods are the most widely used temporal difference based learning algorithms; however, it has been shown that none of their objective functions is optimal w. r. t approximating the true value function $V$.
no code implementations • ICML 2017 • Bo Liu, Xiao-Tong Yuan, Lezi Wang, Qingshan Liu, Dimitris N. Metaxas
It remains open to explore duality theory and algorithms in such a non-convex and NP-hard problem setting.
no code implementations • WS 2016 • Sadid A. Hasan, Bo Liu, Joey Liu, Ashequl Qadir, Kathy Lee, Vivek Datla, Aaditya Prakash, Oladimeji Farri
Paraphrase generation is important in various applications such as search, summarization, and question answering due to its ability to generate textual alternatives while keeping the overall meaning intact.
no code implementations • 14 Mar 2016 • Sheng Huang, Dan Yang, Bo Liu, Xiaohong Zhang
Moreover, we plug RH into two conventional hypergraph learning frameworks, namely hypergraph spectral clustering and hypergraph transduction, to present Regression-based Hypergraph Spectral Clustering (RHSC) and Regression-based Hypergraph Transduction (RHT) models for addressing the image clustering and classification issues.
no code implementations • ICCV 2015 • Bo Liu, Nuno Vasconcelos
A large video dataset for the evaluation of adaptation approaches to crowd counting is also introduced.
no code implementations • 25 Sep 2014 • Liang Wu, Hui Xiong, Liang Du, Bo Liu, Guandong Xu, Yong Ge, Yanjie Fu, Yuanchun Zhou, Jianhui Li
Specifically, this method can capture both the inherent information in the source codes and the semantic information hidden in the comments, descriptions, and identifiers of the source codes.
no code implementations • 17 Jul 2014 • Stefan Thurner, Rudolf Hanel, Bo Liu, Bernat Corominas-Murtra
The formation of sentences is a highly structured and history-dependent process.
no code implementations • 26 May 2014 • Sridhar Mahadevan, Bo Liu, Philip Thomas, Will Dabney, Steve Giguere, Nicholas Jacek, Ian Gemp, Ji Liu
In this paper, we set forth a new vision of reinforcement learning developed by us over the past few years, one that yields mathematically rigorous solutions to longstanding important questions that have remained unresolved: (i) how to design reliable, convergent, and robust reinforcement learning algorithms (ii) how to guarantee that reinforcement learning satisfies pre-specified "safety" guarantees, and remains in a stable region of the parameter space (iii) how to design "off-policy" temporal difference learning algorithms in a reliable and stable manner, and finally (iv) how to integrate the study of reinforcement learning into the rich theory of stochastic optimization.
no code implementations • LREC 2014 • Bo Liu, Jingjing Liu, Xiang Yu, Dimitris Metaxas, Carol Neidle
Essential grammatical information is conveyed in signed languages by clusters of events involving facial expressions and movements of the head and upper body.
no code implementations • 12 Oct 2012 • Mingjun Zhong, Rong Liu, Bo Liu
Compared to the point estimate algorithms, which only provide single estimates for those parameters, the Bayesian methods are more meaningful and provide credible intervals, which take into account the uncertainty of the inferred interactions of the miRNA and mRNA.
no code implementations • LREC 2012 • Dimitris Metaxas, Bo Liu, Fei Yang, Peng Yang, Nicholas Michael, Carol Neidle
This paper addresses the problem of automatically recognizing linguistically significant nonmanual expressions in American Sign Language from video.
no code implementations • NeurIPS 2010 • Sridhar Mahadevan, Bo Liu
This paper explores links between basis construction methods in Markov decision processes and power series expansions of value functions.