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Sparse and hybrid modelling of relative humidity: the Krsˇ ko basin case study

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CAAI Transactions on Intelligence Technology 2020年第1期5卷 42-48页

作者： Jus Kocijan Matija Perne Bostjan Gras ic Marija Zlata Boznar Primoz Mlakar Department of Systems and Control Jozef Stefan InstituteJamova 39LjubljanaSlovenia centre for information technologies and applied mathematics University of Nova GoricaVipavska 13Nova GoricaSlovenia MEIS d.o.o. Mali Vrh pri Smarju 78Smarje-SapSlovenia

This study describes an application of hybrid modelling for an atmospheric variable in the Krsko *** hybrid model is a combination of a physics-based and data-driven model and has some properties of both modelling *** the authors’case,it is used for the modelling of an atmospheric variable,namely relative humidity in a particular location for the purpose of using the predictions of the model as an input to the air-pollution-dispersion model for radiation *** presented hybrid model is a combination of a physics-based atmospherical model and a Gaussian-process(GP)regression *** GP model is a probabilistic kernel method that also enables evaluation of prediction *** problem of poor scalability of GP modelling was solved using sparse GP modelling;in particular,the fully independent training conditional method was *** different approaches to dataset selection for empirical model training were used and multiple-step-ahead predictions for different horizons were *** is shown in this study that the accuracy of the predicted relative humidity in the Krsko basin improved when using hybrid models over using the physics-based model alone and that predictions for a considerable length of horizon can be used.

关键词： humidity horizon modelling

Links Between HX-Groups and Hypergroups

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Algebra Colloquium 2021年第3期28卷 441-452页

作者： Irina Cristea Michal Novák Babatunde Oluwaseun Onasanya centre for information technologies and applied mathematics university of nova gorica Slovenia Faculty of Electrical Engineering and Communication Brno university of Technology Czech Republic Key Laboratory of Intelligent information Processing and Control of Chongqing Municipal Institutions of Higher Education Chongqing Three Gorges university Chongqing 404000China Department of mathematics University of IbadanNigeria

The concept of an HX-group is an upgrade of the concept of a group,in which a new operation is defined on the family of non-empty subsets of a *** this new support set together with the new operation is a group,then we call it an *** the other hand,a hyperoperation is a mapping having the same codomain as the operation of an HX-group,i.e.,the family of non-empty subsets of the initial set,but a different domain-the set *** could be(and was indeed)a source of confusion,which is clarified in this ***,HX-groups naturally lead to constructions of *** links between these two algebraic concepts are presented,with the aim of reviving the old notion of an HX-group in the current research on algebraic *** of such existing links and one newly established link are also discussed.

关键词： HX-group hyperstructure theory Chinese hypergroupoid EL-hyperstructure power set

Transition along gradient from warm to mesic temperate forests evaluated by GAMM

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Journal of Plant Ecology 2016年第4期9卷 421-433页

作者： AndražČarni Vlado Matevski Nina Juvan Mitko Kostadinovski Petra Košir Aleksander Marinšek Andrej Paušič UrbanŠilc Institute of Biology Research Centre of the Slovenian Academy of Sciences and ArtsNovi trg 2SI-1000 LjubljanaSlovenia university of nova gorica Vipavska 13SI-5000 Nova GoricaSlovenia Macedonian Academy of Sciences and Arts Bul.Krste Misirkov2P.O.Box 428MK-1000 SkopjeRepublic of Macedonia Faculty of Natural Sciences and mathematics Institute of BiologyUniversity of Ss.Cyril and MethodiusGazi Baba b/b-P.O.Box 162MK-1000 SkopjeRepublic of Macedonia Anton Melik Geographical Institute Research Centre of the Slovenian Academy of Sciences and ArtsNovi trg 2SI-1000 LjubljanaSlovenia Faculty of mathematics Natural Sciences and Information TechnologiesUniversity of PrimorskaGlagoljaška 8SI-6000 KoperSlovenia Slovenian Forestry Institute Večna pot 2SI-LjubljanaSlovenia Kranjčeva 8 SI-9220 LendavaSlovenia Biotechnical centre Naklo Strahinj 99SI-4202 NakloSlovenia

Aims The aim of the study was to discover what set of variables best explains the transition from warm to mesic forest *** on various variables grouped into sets(geomorphological,ecological,structural,soil characteristics and chorological),six models were built and tested by generalized additive mixed models(GAMMs).We assumed that each set of variables has different explanatory *** aim was to compare the six different models(sets of variables),to test which model best explains the species turnover in forest communities along the transition between warm and mesic temperate forests and to try to find reasons for the different explanatory power of the *** The research took place in the southern part of the Balkan *** sampling was done according to standard *** gradient from warm to mesic forests was defined as the turnover of species and evaluated by projection of samples on the first unconstrained DCA ***,ecological,structural and soil characteristics,together with chorological sets of variables,were regressed on the turnover of species *** on the five sets of variables,six models were constructed and tested by generalized additive mixed *** Findings Ecological conditions best explain the change of forest communities along the gradient;evolution and the development of vegetation reflected in chorotypes are also of high importance;geomorphology and structure seem not to change so dramatically and soil shows the least significant differences of *** variables are the most important set of variables in the transition between warm and mesic temperate forests but eco-evolutionary dynamics after the Pleistocene should also be taken into consideration.

关键词： Balkan chorotypes life forms ecology plant ecology soil science vegetation evolution refugium

Directly wireless communication of human minds via non-invasive brain-computer-metasurface platform

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eLight 2022年第1期2卷 132-142页

作者： Qian Ma Wei Gao Qiang Xiao Lingsong Ding Tianyi Gao Yajun Zhou Xinxin Gao Tao Yan Che Liu Ze Gu Xianghong Kong Qammer HAbbasi Lianlin Li Cheng‑Wei Qiu Yuanqing Li Tie Jun Cui Institute of Electromagnetic Space Southeast UniversityNanjing 210096China School of Automation Science and Engineering South China University of TechnologyGuangzhou 510641China State Key Laboratory of Millimeter Wave Southeast UniversityNanjing 210096China Center of Intelligent Metamaterials Pazhou Laboratory Guangzhou 510330China Research Center for Brain-Computer Interface Pazhou LabGuangzhou 510330China Department of Electrical and Computer Engineering National University of SingaporeSingaporeSingapore university of Glasgow James Watt School of EngineeringGlasgow G128QQUK State Key Laboratory of Advanced Optical Communication Systems and Networks Department of ElectronicsPeking UniversityBeijing 100871China

Brain-computer interfaces(BCIs),invasive or non-invasive,have projected unparalleled vision and promise for assisting patients in need to better their interaction with the *** by the BCI-based rehabilitation technologies for nerve-system impairments and amputation,we propose an electromagnetic brain-computer-metasurface(EBCM)paradigm,regulated by human’s cognition by brain signals directly and *** experimentally show that our EBCM platform can translate human’s mind from evoked potentials of P300-based electroencephalography to digital coding information in the electromagnetic domain non-invasively,which can be further processed and transported by an information metasurface in automated and wireless *** wireless communications of the human minds are performed between two EBCM operators with accurate text ***,several other proof-of-concept mind-control schemes are presented using the same EBCM platform,exhibiting flexibly-customized capabilities of information processing and synthesis like visual-beam scanning,wave modulations,and pattern encoding.

关键词： communication computer surface