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Unsupervised spectral feature selection algorithms for high dimensional data

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Frontiers of Computer Science 2023年第5期17卷 27-40页

作者： Mingzhao WANG henry HAN Zhao HUANG Juanying XIE School of Computer Science Shaanxi Normal UniversityXi’an 710119China Department of Computer Science School of Engineering&Computer ScienceBaylor UniversityWacoTX 76798USA

It is a significant and challenging task to detect the informative features to carry out explainable analysis for high dimensional data,especially for those with very small number of *** selection especially the unsupervised ones are the right way to deal with this challenge and realize the ***,two unsupervised spectral feature selection algorithms are proposed in this *** group features using advanced Self-Tuning spectral clustering algorithm based on local standard deviation,so as to detect the global optimal feature clusters as far as *** two feature ranking techniques,including cosine-similarity-based feature ranking and entropy-based feature ranking,are proposed,so that the representative feature of each cluster can be detected to comprise the feature subset on which the explainable classification system will be *** effectiveness of the proposed algorithms is tested on high dimensional benchmark omics datasets and compared to peer methods,and the statistical test are conducted to determine whether or not the proposed spectral feature selection algorithms are significantly different from those of the peer *** extensive experiments demonstrate the proposed unsupervised spectral feature selection algorithms outperform the peer ones in comparison,especially the one based on cosine similarity feature ranking *** statistical test results show that the entropy feature ranking based spectral feature selection algorithm performs *** detected features demonstrate strong discriminative capabilities in downstream classifiers for omics data,such that the AI system built on them would be reliable and *** is especially significant in building transparent and trustworthy medical diagnostic systems from an interpretable AI perspective.

关键词： feature selection spectral clustering feature ranking techniques entropy cosine similarity

Synergy between thermal and nonthermal effects in plasmonic photocatalysis

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Nano Research 2020年第5期13卷 1268-1280页

作者： Xueqian Li henry O.Everitt Jie Liu Department of Chemistry Duke UniversityDurhamNC 27708USA 2 U.S.Army Combat Capabilities Development CommandAviation&Missile CenterRedstone ArsenalAL 35898USA Department of Physics Duke UniversityDurhamNC 27708USA Present address:Department of Applied Physics and Materials Science California Institute of TechnologyPasadenaCA 91125USA

Plasmonic photocatalysis represents the synergetic union of two active fields of research:plasmonic effects in illuminated metallic nanoparticles and catalytic effects in tailored metallic ***,metallic nanoparticles that excel for one application are limited for the other,but recent developments have shown that desirable catalytic behaviors,such as reduced activation barriers and improved product selectivity,derive from nonthermal behaviors uniquely produced by this *** examining such findings,this review will address a specific debate that has recently surfaced:what is the relative degree of contributions of thermal and nonthermal effects in plasmonic photocatalysis?We demonstrate the importance of correctly accounting for thermal effects before characterizing nonthermal *** show that another synergy occurs:these desirable nonthermal behaviors have a temperature dependence,and the resulting temperature-dependent reaction rates far exceed what can be explained from purely thermal effects ***,the synergy of plasmonic photocatalysis offers an exciting new contribution to the quest for efficient,selective,sustainable methods for chemical synthesis and energy conversion.

关键词： plasmonic catalysis hot carriers photothermal catalysis localized surface plasmon

Wild rice research: Advancing plant science and food security

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Molecular Plant 2022年第4期15卷 563-565页

作者： Robert J.henry Queensland Alliance for Agriculture and Food Innovation University of QueenslandBrisbaneQLD 4072Australia ARC Centre of Excellence for Plant Success in Nature and Agriculture University of QueenslandBrisbaneQLD 4072Australia

Rice was domesticated in Asia(Oryza sativa)and Africa(Oryza glaberrima)from Oryza rufipogon and Oryza bathii,*** Oryza genus has a pantropical *** genetic diversity in Oryza provides an extensive gene pool to adapt rice to climate change and address future food *** primary gene pool of domesticated rice includes species that are readily accessible for rice breeding due to ease of crossing,while more distant species are also sources of useful genes that can be recovered with greater difficulty(Figure 1).Advances in genomics and gene editing provide a path for use of this wider *** of Oryza species also offer potential insights into rice biology that may be critical for ongoing rice food security.

关键词： sativa Oryza breeding

Gym-ANM: Reinforcement learning environments for active network management tasks in electricity distribution systems

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能源与人工智能(英文) 2021年第3期5卷 171-193页

作者： Robin henry Damien Ernst School of Engineering Sanderson BuildingThe University of EdinburghEdinburgh EH93FBUK Department of Electrical Engineering and Computer Science Montefiore InstituteUniversity of LiegeLiege B-4000Belgium

Active network management(ANM)of electricity distribution networks include many complex stochastic sequential optimization *** problems need to be solved for integrating renewable energies and distributed storage into future electrical *** this work,we introduce Gym-ANM,a framework for designing reinforcement learning(RL)environments that model ANM tasks in electricity distribution *** environments provide new playgrounds for RL research in the management of electricity networks that do not require an extensive knowledge of the underlying dynamics of such *** with this work,we are releasing an implementation of an introductory toy-environment,ANM6-Easy,designed to emphasize common challenges in *** also show that state-of-the-art RL algorithms can already achieve good performance on ANM6-Easy when compared against a model predictive control(MPC)***,we provide guidelines to create new Gym-ANM environments differing in terms of(a)the distribution network topology and param-eters,(b)the observation space,(c)the modeling of the stochastic processes present in the system,and(d)a set of hyperparameters influencing the reward ***-ANM can be downloaded at https://***/robinhenr y/gym-anm.

关键词： Gym-ANM Reinforcement learning Active network management Distribution networks Renewable energy

Exploring the link between brain topological resilience and cognitive performance in the context of aging and vascular risk factors:A cross-ethnicity population-based study

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Science Bulletin 2024年第17期69卷 2735-2744页

作者： Hao Liu Jing Jing Jiyang Jiang Wei Wen Wanlin Zhu Zixiao Li Yuesong Pan Xueli Cai chang Liu Yijun Zhou Xia Meng Yilong Wang Hao Li Yong Jiang Huaguang Zheng Suying Wang Haijun Niu Nicole Kochan henry Brodaty Tiemin Wei Perminder S.Sachdev Yubo Fan Tao Liu Yongjun Wang Beijing Advanced Innovation Center for Biomedical Engineering School of Biological Science and Medical EngineeringBeihang UniversityBeijing 100191China China National Clinical Research Center for Neurological Diseases Beijing 100070China Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijing 100070China Neuropsychiatric Institute Prince of Wales HospitalSydney NSW 2031Australia Centre for Healthy Brain Ageing(CHeBA) Discipline of Psychiatry and Mental HealthSchool of Clinical MedicineUNSW MedicineSydney NSW 2052Australia Department of Neurology Lishui HospitalZhejiang University School of MedicineLishui 323000China Cerebrovascular Research Lab Lishui HospitalZhejiang University School of MedicineLishui 323000China Department of Cardiology Lishui HospitalZhejiang University School of MedicineLishui 323000China

Brain aging is typically associated with a significant decline in cognitive *** risk factors(VRF)and subsequent atherosclerosis(AS)play a major role in this *** resilience reflects the brain’s ability to withstand external perturbations,but the relationship of brain resilience with cognition during the aging process remains ***,we investigated how brain topological resilience(BTR)is associated with cognitive performance in the face of aging and vascular risk *** used data from two cross-ethnicity community cohorts,PolyvasculaR Evaluation for Cognitive Impairment and Vascular Events(PRECISE,n=2220)and Sydney Memory and Ageing Study(MAS,n=246).We conducted an attack simulation on brain structural networks based on k-shell decomposition and node degree *** was defined based on changes in the size of the largest subgroup of the network during the simulation ***,we explored the negative correlations of BTR with age,VRF,and AS,and its positive correlation with cognitive ***,using structural equation modeling(SEM),we constructed path models to analyze the directional dependencies among these variables,demonstrating that aging,AS,and VRF affect cognition by disrupting *** results also indicated the specificity of this metric,independent of brain ***,these findings underscore the supportive role of BTR on cognition during aging and highlight its potential application as an imaging marker for objective assessment of brain cognitive performance.

关键词： Brain resilience Vascular risk factors Cognition decline K-shell decomposition Network attack simulation

The contribution of maps to the challenges of risk communication to the public

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International Journal of Digital Earth 2010年第3期3卷 292-311页

作者： Doris Dransch henry Rotzoll Kathrin Poser Helmholtz Centre Potsdam German Research Centre for GeosciencesPotsdamGermany Institute for Geography Humboldt-University BerlinBerlinGermany Center for Disaster Management and Risk Reduction Technology(CEDIM) PotsdamGermany

Risk communication is a significant challenge in risk *** serves different purposes;an important one is to improve the public risk awareness and *** of the strong spatio-temporal component of natural hazards,maps can play a decisive role in communicating risk *** application and design of maps for risk communication especially to the public has not been investigated *** constraints and challenges of risk communication have not been considered systematically in the map design process so *** study aims at developing a frame for the application and design of interactive risk and hazard maps for the public which is based on the specific constraints and challenges of risk *** a literature review it introduces concepts and methods from social sciences and psychology,which have been assessed as important for communicating risk *** concepts and methods are adapted to map-mediated risk communication according to the approaches of Activity *** objectives and tasks which are essential to improve risk mitigation are identified and geovisualization methods for information presentation are related according to the degree which they are able to serve *** on this,some principles for map-based risk communication are established.

关键词： risk management risk communication risk mitigation risk maps task-oriented geovisualization Digital Earth visualization geoinformatics GIS

Media Preference, Information Needs, and the Language Proficiency of Foreigners in Japan after the 2011 Great East Japan Earthquake

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International Journal of Disaster Risk Science 2018年第1期9卷 1-15页

作者： Akiyuki Kawasaki Michael henry Kimiro Meguro Department of Civil Engineering The University of Tokyo Division of Field Engineering for the Environment Faculty of Engineering Hokkaido University International Center for Urban Safety Engineering Institute of Industrial Science The University of Tokyo

After the 2011 Great East Japan Earthquake, the Japanese government identified the lack of proficiency in the Japanese language as one characteristic of foreigners that should be considered in disaster prevention *** article seeks to understand how proficiency in a local language affects disaster information gathering behavior by using the results of a questionnaire survey conducted after the 2011 Great East Japan Earthquake. Respondents were categorized based on their Japanese and English language abilities. Their media mode, language preferences, information importance, and information-gathering difficulties also were examined. It was found that foreigners skilled in Japanese demonstrated similar information gathering behavior as Japanese respondents, but foreigners unskilled in Japanese showed little usage of Japanese-language media. This group also encountered difficulties due to a lack of Japanese proficiency, but many members were able to acquire some level of Japanese-language information through Internet-based methods. To address language proficiency in disaster prevention planning, information provision in languages other than Japanese should be increased, and Japanese information should be shared in a way that facilitates translation. Although this survey wassignificant in its scope, the results should be considered within the limitations of the Internet-based response collection and focus only on the less-affected area of Japan.

关键词： 2011 Great East Japan Earthquake Disaster information Foreign population Internet-based media Language proficiency

Branding"Literary Genius"in Jin Shengtan's 70-Chapter Edition of the Water Margin

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Frontiers of Literary Studies in China-Selected Publications from Chinese Universities 2020年第3期14卷 480-513页

作者： henry Lem Asian School I Department of ChineseDefense Language InstituteMontereysCA 93944USA

Jin Shengtan wrote his commentaries to the novel Water Margin(Shuihuzhuan)between 1641 and 1644,during the final years before the fall of the Ming *** commentaries are exceptional at least in part because they reflect Jin's frustrations that came from trying to understand this period of *** they are also a good example of how fiction commentary helped to shape the trajectory that the development of Chinese fiction would take,in the form of commentaries and *** article offers a reading of Jin's commentaries to his 70-chapter edition of the Water Margin,to investigate how Jin radically reshaped the Water Margin as the masterpiece of a commentator of great literary *** analyses Jin's rhetoric of controlling interpretation and concludes that Jin's ultimate goal was to stabilize and prevent tampering of his"original"70-chapter edition,in an attempt to close off future possibilities of"sequeling"the Water Margin.

关键词： Jin Shengtan Water Margin literary genius fiction commentaries sequels rhetoric

Assessing n-type organic materials for lithium batteries:A techno-economic review

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InfoMat 2023年第11期5卷 1-24页

作者： Alessandro Innocenti henry Adenusi Stefano Passerini Helmholtz Institute Ulm(HIU)Electrochemical Energy Storage UlmGermany Karlsruhe Institute of Technology(KIT) KarlsruheGermany Department of Chemistry The University of Hong KongHong Kongthe People's Republic of China Hong Kong Quantum AI Lab Hong Kongthe People's Republic of China Department of Chemistry Sapienza University of RomeRomeItaly

The high demand for critical minerals such as lithium,copper,nickel,and cobalt,required for lithium-ion batteries,has raised questions regarding the feasibility of maintaining a steady and affordable supply of raw materials for their *** the last years,researchers have shifted their attention toward organic materials,which are potentially more widely available,affordable,and sustainable due to the ubiquitous presence of the constituent organic *** n-type materials have a redox mechanism analogous to that of lithium-ion cathodes and anodes,hence they are suitable for a meaningful comparison with the state-of-the-art *** many reviews have evaluated the properties of organic materials at the material or electrode level,herein,the properties of n-type organic materials are assessed in a complex system,such as a full battery,to evaluate the feasibility and performance of these materials in commercial-scale battery *** most relevant cathode materials for organic batteries are reviewed,and a detailed cost and performance analysis of n-type material-based battery packs using the BatPaC 5.0 software is *** analysis considers the influence of electrode design choices,such as the conductive carbon content,active material mass loading,and electrode density,on energy density and *** potential of n-type organic materials as a low-cost and sustainable solution for energy storage applications is highlighted,while emphasizing the need for further advancements of organic materials for energy storage applications.

关键词： batteries cost-performance analysis lithium-ion organic review