no code implementations • NAACL (SMM4H) 2021 • Zongcheng Ji, Tian Xia, Mei Han
This paper describes our system developed for the subtask 1c of the sixth Social Media Mining for Health Applications (SMM4H) shared task in 2021.
no code implementations • 21 Jan 2025 • Xinzheng Wu, Junyi Chen, Jianfeng Wu, Longgao Zhang, Tian Xia, Yong Shen
Testing and evaluation is an important step before the large-scale application of the autonomous driving systems (ADSs).
no code implementations • 3 Nov 2024 • Ziming Mao, Tian Xia, Zhanghao Wu, Wei-Lin Chiang, Tyler Griggs, Romil Bhardwaj, Zongheng Yang, Scott Shenker, Ion Stoica
While spot instances have long been offered with a large discount, spot preemptions have discouraged users from using them to host model replicas when serving AI models.
1 code implementation • 16 Sep 2024 • Mélanie Roschewitz, Fabio De Sousa Ribeiro, Tian Xia, Galvin Khara, Ben Glocker
Notably, counterfactual contrastive learning achieves superior downstream performance on both in-distribution and on external datasets, especially for images acquired with scanners under-represented in the training set.
no code implementations • 9 Sep 2024 • Wei Peng, Tian Xia, Fabio De Sousa Ribeiro, Tomas Bosschieter, Ehsan Adeli, Qingyu Zhao, Ben Glocker, Kilian M. Pohl
To address these challenges, we propose a two-stage method that constructs a Structural Causal Model (SCM) within the latent space.
1 code implementation • 23 Aug 2024 • Hui Wei, Shenghua He, Tian Xia, Andy Wong, Jingyang Lin, Mei Han
We develop a framework to evaluate, compare, and visualize the reliability and alignment of LLM judges to provide informative observations that help choose LLM judges for alignment tasks.
no code implementations • 14 Mar 2024 • Tian Xia, Mélanie Roschewitz, Fabio De Sousa Ribeiro, Charles Jones, Ben Glocker
Causal generative modelling is gaining interest in medical imaging due to its ability to answer interventional and counterfactual queries.
1 code implementation • 14 Mar 2024 • Melanie Roschewitz, Fabio De Sousa Ribeiro, Tian Xia, Galvin Khara, Ben Glocker
Contrastive pretraining is well-known to improve downstream task performance and model generalisation, especially in limited label settings.
1 code implementation • 4 Mar 2024 • Tian Xia, Xuweiyi Chen, Sihan Xu
Video Diffusion Models have been developed for video generation, usually integrating text and image conditioning to enhance control over the generated content.
1 code implementation • 24 Feb 2024 • Tian Xia, Zhiwei He, Tong Ren, Yibo Miao, Zhuosheng Zhang, Yang Yang, Rui Wang
Bargaining is an important and unique part of negotiation between humans.
1 code implementation • 18 Jan 2024 • Tongxin Yuan, Zhiwei He, Lingzhong Dong, Yiming Wang, Ruijie Zhao, Tian Xia, Lizhen Xu, Binglin Zhou, Fangqi Li, Zhuosheng Zhang, Rui Wang, Gongshen Liu
We introduce R-Judge, a benchmark crafted to evaluate the proficiency of LLMs in judging and identifying safety risks given agent interaction records.
1 code implementation • 27 Jun 2023 • Fabio De Sousa Ribeiro, Tian Xia, Miguel Monteiro, Nick Pawlowski, Ben Glocker
We present a general causal generative modelling framework for accurate estimation of high fidelity image counterfactuals with deep structural causal models.
1 code implementation • 23 Jun 2023 • Tian Xia
In this paper, we propose a novel normalization method called penalty gradient normalization (PGN) to tackle the training instability of Generative Adversarial Networks (GANs) caused by the sharp gradient space.
no code implementations • 31 May 2023 • Bohong Wang, Qinglai Guo, Tian Xia, Qiang Li, Di Liu, Feng Zhao
With the development of Internet of Things (IoT) and big data technology, the data value is increasingly explored in multiple practical scenarios, including electricity transactions.
no code implementations • 23 May 2022 • Pedro Sanchez, Jeremy P. Voisey, Tian Xia, Hannah I. Watson, Alison Q. ONeil, Sotirios A. Tsaftaris
Causal machine learning (CML) has experienced increasing popularity in healthcare.
no code implementations • 15 Mar 2022 • Tian Xia, Pedro Sanchez, Chen Qin, Sotirios A. Tsaftaris
To demonstrate the effectiveness of the proposed approach, we validate the method with the classification of Alzheimer's Disease (AD) as a downstream task.
no code implementations • 7 Mar 2022 • Ryo Suzuki, Adnan Karim, Tian Xia, Hooman Hedayati, Nicolai Marquardt
This paper contributes to a taxonomy of augmented reality and robotics based on a survey of 460 research papers.
1 code implementation • 18 Nov 2021 • Xiang Bai, Hanchen Wang, Liya Ma, Yongchao Xu, Jiefeng Gan, Ziwei Fan, Fan Yang, Ke Ma, Jiehua Yang, Song Bai, Chang Shu, Xinyu Zou, Renhao Huang, Changzheng Zhang, Xiaowu Liu, Dandan Tu, Chuou Xu, Wenqing Zhang, Xi Wang, Anguo Chen, Yu Zeng, Dehua Yang, Ming-Wei Wang, Nagaraj Holalkere, Neil J. Halin, Ihab R. Kamel, Jia Wu, Xuehua Peng, Xiang Wang, Jianbo Shao, Pattanasak Mongkolwat, Jianjun Zhang, Weiyang Liu, Michael Roberts, Zhongzhao Teng, Lucian Beer, Lorena Escudero Sanchez, Evis Sala, Daniel Rubin, Adrian Weller, Joan Lasenby, Chuangsheng Zheng, Jianming Wang, Zhen Li, Carola-Bibiane Schönlieb, Tian Xia
Artificial intelligence (AI) provides a promising substitution for streamlining COVID-19 diagnoses.
no code implementations • ACL 2021 • Zongcheng Ji, Tian Xia, Mei Han, Jing Xiao
Disease is one of the fundamental entities in biomedical research.
no code implementations • 22 Dec 2020 • Tian Xia, Wei-Shinn Ku
To address the above challenges, we propose a new graph neural network architecture to represent the proteins as 3D graphs and predict both distance geometric graph representation and dihedral geometric graph representation together.
1 code implementation • 20 Apr 2020 • Tian Xia, Agisilaos Chartsias, Sotirios A. Tsaftaris
In this paper, we present a model that is encouraged to disentangle the information of pathology from what seems to be healthy.
2 code implementations • 4 Mar 2020 • Zhen Zeng, Jianzong Wang, Ning Cheng, Tian Xia, Jing Xiao
Targeting at both high efficiency and performance, we propose AlignTTS to predict the mel-spectrum in parallel.
1 code implementation • 4 Dec 2019 • Tian Xia, Agisilaos Chartsias, Chengjia Wang, Sotirios A. Tsaftaris
Our method synthesises images conditioned on two factors: age (a continuous variable), and status of Alzheimer's Disease (AD, an ordinal variable).
no code implementations • 25 Sep 2019 • Xingyu Lou, Kaihe Xu, Zhongliang Li, Tian Xia, Shaojun Wang, Jing Xiao
Text generation is a critical and difficult natural language processing task.
no code implementations • 19 Sep 2019 • Yuchen Xiao, Joshua Hoffman, Tian Xia, Christopher Amato
In many real-world multi-robot tasks, high-quality solutions often require a team of robots to perform asynchronous actions under decentralized control.
no code implementations • 15 Sep 2019 • Tian Xia, Shaodan Zhai, Shaojun Wang
List-wise based learning to rank methods are generally supposed to have better performance than point- and pair-wise based.
no code implementations • 15 Sep 2019 • Tian Xia, Shaodan Zhai, Shaojun Wang
Margin infused relaxed algorithms (MIRAs) dominate model tuning in statistical machine translation in the case of large scale features, but also they are famous for the complexity in implementation.
no code implementations • 12 Sep 2019 • Tian Xia, Shaodan Zhai, Shaojun Wang
In learning to rank area, industry-level applications have been dominated by gradient boosting framework, which fits a tree using least square error principle.
1 code implementation • 16 May 2019 • Zhengzheng Tu, Tian Xia, Chenglong Li, Xiaoxiao Wang, Yan Ma, Jin Tang
In this paper, we propose an effective approach for RGB-T image saliency detection.
no code implementations • 10 Jan 2019 • Tian Xia, Agisilaos Chartsias, Sotirios A. Tsaftaris
Pseudo healthy synthesis, i. e. the creation of a subject-specific `healthy' image from a pathological one, could be helpful in tasks such as anomaly detection, understanding changes induced by pathology and disease or even as data augmentation.
no code implementations • 27 Sep 2018 • Yao Shi, Tian Xia, Guanjun Zhao, Xin Gao
This paper puts forward a broad-spectrum improvement for reinforcement learning algorithms, which combines the policies using original rewards and inverse (negative) rewards.
3 code implementations • CVPR 2017 • Xiaozhi Chen, Huimin Ma, Ji Wan, Bo Li, Tian Xia
We encode the sparse 3D point cloud with a compact multi-view representation.
no code implementations • 29 Aug 2016 • Bo Li, Tianlei Zhang, Tian Xia
Convolutional network techniques have recently achieved great success in vision based detection tasks.
Ranked #4 on Object Detection on KITTI Cars Moderate
1 code implementation • 6 May 2016 • Feng Wang, Huichao Gong, Gaochao liu, Meijing Li, Chuangye Yan, Tian Xia, Xueming Li, Jianyang Zeng
Particle picking is a time-consuming step in single-particle analysis and often requires significant interventions from users, which has become a bottleneck for future automated electron cryo-microscopy (cryo-EM).
no code implementations • 22 Mar 2016 • Xiao Liu, Tian Xia, Jiang Wang, Yi Yang, Feng Zhou, Yuanqing Lin
Fine-grained recognition is challenging due to its subtle local inter-class differences versus large intra-class variations such as poses.
no code implementations • JEPTALNRECITAL 2015 • Tian Xia, Shaodan Zhai, Zhongliang Li, Shaojun Wang
Marge infus{\'e} algorithmes d{\'e}tendus (MIRAS) dominent mod{\`e}le de tuning dans la traduction automatique statistique dans le cas des grandes caract{\'e}ristiques de l{'}{\'e}chelle, mais ils sont {\'e}galement c{\'e}l{\`e}bres pour la complexit{\'e} de mise en {\oe}uvre.
no code implementations • CVPR 2015 • Tong Xiao, Tian Xia, Yi Yang, Chang Huang, Xiaogang Wang
To demonstrate the effectiveness of our approach, we collect a large-scale real-world clothing classification dataset with both noisy and clean labels.
no code implementations • NeurIPS 2013 • Shaodan Zhai, Tian Xia, Ming Tan, Shaojun Wang
We propose a boosting method, DirectBoost, a greedy coordinate descent algorithm that builds an ensemble classifier of weak classifiers through directly minimizing empirical classification error over labeled training examples; once the training classification error is reduced to a local coordinatewise minimum, DirectBoost runs a greedy coordinate ascent algorithm that continuously adds weak classifiers to maximize any targeted arbitrarily defined margins until reaching a local coordinatewise maximum of the margins in a certain sense.