Model-based diagnosis reasons backwards from a functional schematic of a system to isolate faults given observations of anomalous behavior. We develop a fully probabilistic approach to model based diagnosis and extend it to support hierarchical models. Our scheme translates the functional schematic into a Bayesian network and diagnostic inference takes place in the Bayesian network. A Bayesian network diagnostic inference algorithm is modified to take advantage of the hierarchy to give computational gains.
Hierarchical knowledge guided fault intensity diagnosis of complex industrial systems
School of Artificial Intelligence, Xidian University, Xian, China(西安电子科技大学人工智能学院);School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, China(香港科技大学(深圳)科学与工程学院);Frankfurt Institute for Advanced Studies, Frankfurt am Main, Germany(法兰克福高级研究院);Xidian-FIAS international Joint Research Center, Frankfurt am Main, Germany(西电-法兰克福国际联合研究中心);Institut für Theoretische Physik, Goethe Universität Frankfurt, Frankfurt am Main, Germany(法兰克福歌德大学理论物理研究所);GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany(重离子研究中心(GSI));SAMSON AG, Frankfurt am Main, Germany(SAMSON公司)
A Deep Neural Network (DNN) based algorithm is proposed for the detection and classification of faults in industrial plants. The proposed algorithm has the ability to classify faults, especially incipient faults that are difficult to detect and diagnose with traditional threshold based statistical methods or by conventional Artificial Neural Networks (ANNs). The algorithm is based on a Supervised Deep Recurrent Autoencoder Neural Network (Supervised DRAE-NN) that uses dynamic information of the process along the time horizon. Based on this network a hierarchical structure is formulated by grou…
DISCO: A Hierarchical Disentangled Cognitive Diagnosis Framework for Interpretable Job Recommendation
School of Artificial Intelligence, Anhui University(安徽大学人工智能学院);Shanghai Artificial Intelligence Laboratory(上海人工智能实验室);University of Science and Technology of China(中国科学技术大学);Institutes of Physical Science and Information Technology, Anhui University(安徽大学物理与信息技术研究院);School of Computer Science and Technology, Anhui University(安徽大学计算机科学与技术学院);Computer Network Information Center, Chinese Academy of Sciences(中国科学院计算机网络信息中心)
Northwestern University(西北大学);Northwestern University Feinberg School of Medicine(西北大学费恩伯格医学院);Simpson Querrey Lung Institute for Translational Science(辛普森奎雷转化科学肺研究所)
Model protection is vital when deploying Convolutional Neural Networks (CNNs) for commercial services, due to the massive costs of training them. In this work, we propose a selective encryption (SE) algorithm to protect CNN models from unauthorized access, with a unique feature of providing hierarchical services to users. Our algorithm firstly selects important model parameters via the proposed Probabilistic Selection Strategy (PSS). It then encrypts the most important parameters with the designed encryption method called Distribution Preserving Random Mask (DPRM), so as to maximize the perfor…
University of Michigan(密歇根大学);Invenio Imaging(Invenio 成像公司);New York University(纽约大学)
Learning high-quality, self-supervised, visual representations is essential to advance the role of computer vision in biomedical microscopy and clinical medicine. Previous work has focused on self-supervised representation learning (SSL) methods developed for instance discrimination and applied them directly to image patches, or fields-of-view, sampled from gigapixel whole-slide images (WSIs) used for cancer diagnosis. However, this strategy is limited because it (1) assumes patches from the same patient are independent, (2) neglects the patient-slide-patch hierarchy of clinical biomedical mic…
Learning and inference in knowledge-based probabilistic model for medical diagnosis
School of Computer Science and Technology, Harbin Institute of Technology(哈尔滨工业大学计算机科学与技术学院);The 2nd Affiliated Hospital of Harbin Medical University(哈尔滨医科大学附属第二医院)
University of Science and Technology of China(中国科学技术大学);HUAWEI Technologies(华为技术有限公司)
Clinical diagnosis, which aims to assign diagnosis codes for a patient based on the clinical note, plays an essential role in clinical decision-making. Considering that manual diagnosis could be error-prone and time-consuming, many intelligent approaches based on clinical text mining have been proposed to perform automatic diagnosis. However, these methods may not achieve satisfactory results due to the following challenges. First, most of the diagnosis codes are rare, and the distribution is extremely unbalanced. Second, existing methods are challenging to capture the correlation between diag…
A Multi-granularity Concept Sparse Activation and Hierarchical Knowledge Graph Fusion Framework for Rare Disease Diagnosis
School of Software, Yunnan University(云南大学软件学院);Yunnan Key Laboratory of Software Engineering(云南软件工程重点实验室);Yunnan Provincial Hospital of Traditional Chinese Medicine(云南中医药省人民医院)
MedCollab: IBIS-Guided Multi-Agent Collaboration with Hierarchical Disease Relation Chains for Clinical Diagnosis
Princeton University(普林斯顿大学);Springer Heidelberg(斯普林格海德堡);ABC Institute(ABC研究所);Rupert-Karls-University Heidelberg(海德堡鲁珀特-卡尔大学);Hangzhou Dianzi University(杭州电子科技大学);Zhejiang University(浙江大学);Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Children and Adolescents’ Health and Diseases(浙江大学医学院儿童医院,国家儿童青少年健康与疾病临床研究中心)
ShanghaiTech University(上海科技大学);Shanghai United Imaging Intelligence Co., Ltd.(上海联影智能医疗科技有限公司)
Functional connectivity network (FCN) data from functional magnetic resonance imaging (fMRI) is increasingly used for the diagnoses of brain disorders. However, state-of-the-art studies used to build the FCN using a single brain parcellation atlas at a certain spatial scale, which largely neglected functional interactions across different spatial scales in hierarchical manners. In this study, we propose a novel framework to perform multiscale FCN analysis for brain disorder diagnosis. We first use a set of well-defined multiscale atlases to compute multiscale FCNs. Then, we utilize biologicall…
Radboud University(拉德堡德大学);Delft University of Technology(代尔夫特理工大学)
Markov decision processes are a ubiquitous formalism for modelling systems with non-deterministic and probabilistic behavior. Verification of these models is subject to the famous state space explosion problem. We alleviate this problem by exploiting a hierarchical structure with repetitive parts. This structure not only occurs naturally in robotics, but also in probabilistic programs describing, e.g., network protocols. Such programs often repeatedly call a subroutine with similar behavior. In this paper, we focus on a local case, in which the subroutines have a limited effect on the overall …
Deep Hierarchical Knowledge Loss for Fault Intensity Diagnosis
School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)科学与工程学院);School of Artificial Intelligence, The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)人工智能学院);School of Artificial Intelligence, Xidian University(西安电子科技大学人工智能学院);School of Computer, Luoyang Institute of Science and Technology(洛阳理工学院计算机学院);Frankfurt Institute for Advanced Studies(法兰克福先进研究 institute);SAMSON AG(SAMSON公司)
RoboLDA: A Probabilistic Generative Model for Uncovering Embodied Hierarchical Structures in Voxel-based Soft Robots
School of Computer Science, Shanghai Jiao Tong University(上海交通大学计算机科学学院);Intelligent Game and Decision Laboratory(智能博弈与决策实验室);School of Statistics, Renmin University of China(中国人民大学统计学院);School of Artificial Intelligence, Shanghai Jiao Tong University(上海交通大学人工智能学院);Shanghai Innovation Institute(上海创新研究院);Center for Applied Statistics, Renmin University of China(中国人民大学应用统计中心)
Probabilistic Forecast Reconciliation with Kullback-Leibler Divergence Regularization
AI Lab Lenovo Research(联想研究院AI实验室);School of Statistics and Mathematics Central University of Finance and Economics(中央财经大学统计与数学学院);School of Economics and Management Beihang University(北京航空航天大学经济管理学院)
Indian Institute of Technology, Bombay(印度理工学院孟买分校)
Deep neural networks have revolutionized medical image analysis and disease diagnosis. Despite their impressive performance, it is difficult to generate well-calibrated probabilistic outputs for such networks, which makes them uninterpretable black boxes. Bayesian neural networks provide a principled approach for modelling uncertainty and increasing patient safety, but they have a large computational overhead and provide limited improvement in calibration. In this work, by taking skin lesion classification as an example task, we show that by shifting Bayesian inference to the functional space …