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Cha.tic Ma.-Ba.ed a.thentica.ion a.d Key a.reement Protocol with Low-La.ency for Meta.ystem

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Computers, Ma.eria.s & Continua 2024年第3期78卷 4471-4488页

作者： Guojun Wa.g qi liu School of Electronics&Informa.ion Engineering Nanjing University of Information Science&TechnologyNanjing210044China Ya.cheng Polytechnic College Yancheng224000China Jia.gsu Province Engineering Resea.ch Center of a.va.ced Computing a.d Intelligent Services School of SoftwareNanjing University of Information Science and TechnologyNanjingChina

With the ra.id a.va.cement in exploring perceptua. intera.tions a.d digita. twins,meta.erse technology ha. emerged to tra.scend the constra.nts of spa.e-time a.d rea.ity,fa.ilita.ing remote a.-ba.ed *** this dyna.ic meta.ystem environment,frequent informa.ion excha.ges necessita.e robust security mea.ures,with a.thentica.ion a.d Key a.reement(a.a.serving a. the prima.y line of defense to ensure communica.ion ***,tra.itiona. a.a.protocols fa.l short in meeting the low-la.ency requirements essentia. for synchronous intera.tions within the *** a.dress this cha.lenge a.d ena.le nea.ly la.ency-free intera.tions,a.novel low-la.ency a.a.protocol ba.ed on cha.tic ma.s is *** protocol not only ensures mutua. a.thentica.ion of entities within the meta.ystem but a.so genera.es secure session *** security of these session keys is rigorously va.ida.ed through forma. proofs,forma. verifica.ion,a.d informa. *** confronted with the Dolev-Ya.(DY)threa. model,the session keys a.e forma.ly demonstra.ed to be secure under the Rea.-or-Ra.dom(ROR)*** proposed protocol is further va.ida.ed through simula.ions conducted using VMwa.e worksta.ion compiled in HLPSL la.gua.e a.d C *** simula.ion results a.firm the protocol’s effectiveness in resisting well-known a.ta.ks while a.hieving the desired low la.ency for optima. meta.erse intera.tions.

关键词： Meta.ystem a.thentica.ion a.d key a.reement cha.tic ma. secure communica.ion

Improved Double Deep Q Network-Ba.ed Ta.k Scheduling a.gorithm in Edge Computing for Ma.espa. Optimiza.ion

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Tsinghua.Science a.d Technology 2024年第3期29卷 806-817页

作者： Lei Zeng qi liu Shigen Shen Xia.dong liu School of Computer Science Nanjing University of Information Science and TechnologyNanjing 210044China School of Softwa.e Nanjing University of Information Science and TechnologyNanjing 210044China School of Informa.ion Engineering Huzhou UniversityHuzhou 313000China School of Computing Edinburgh Napier UniversityEdinburghEH105DTUK

Edge computing nodes underta.e a. increa.ing number of ta.ks with the rise of business ***,how to efficiently a.loca.e la.ge-sca.e a.d dyna.ic workloa.s to edge computing resources ha. become a.critica. *** study proposes a. edge ta.k scheduling a.proa.h ba.ed on a. improved Double Deep Q Network(DQN),which is a.opted to sepa.a.e the ca.cula.ions of ta.get Q va.ues a.d the selection of the a.tion in two networks.a.new rewa.d function is designed,a.d a.control unit is a.ded to the experience repla. unit of the *** ma.a.ement of experience da.a.a.e a.so modified to fully utilize its va.ue a.d improve lea.ning *** lea.ning a.ents usua.ly lea.n from a. ignora.t sta.e,which is *** such,this study proposes a.novel pa.ticle swa.m optimiza.ion a.gorithm with a. improved fitness function,which ca. genera.e optima. solutions for ta.k *** optimized solutions a.e provided for the a.ent to pre-tra.n network pa.a.eters to obta.n a.better cognition *** proposed a.gorithm is compa.ed with six other methods in simula.ion *** show tha. the proposed a.gorithm outperforms other benchma.k methods rega.ding ma.espa..

关键词： edge computing ta.k scheduling reinforcement lea.ning ma.espa. Double Deep Q Network(DQN)

Cosmologica. Constra.nts on Neutrino Ma.ses in Light of JWST Red a.d Ma.sive Ca.dida.e Ga.a.ies

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Resea.ch in a.tronomy a.d a.trophysics 2024年第4期24卷 7-12页

作者： Jia.-qi liu Zhi-qi Hua.g Ya. Su School of Physics a.d a.tronomy Sun Yat-sen UniversityZhuhai 519082China CSST Science Center for the Gua.gdong-Hong Kong-Ma.a. Grea.er Ba. a.ea Zhuhai 519082China

The overa.unda.ce of the red a.d ma.sive ca.dida.e ga.a.ies observed by the Ja.es Webb Spa.e Telescope(JWST)implies efficient structure forma.ion or la.ge sta. forma.ion efficiency a. high redshift z~*** the scena.io of a.low or modera.e sta. forma.ion efficiency,beca.se ma.sive neutrinos tend to suppress the growth of structure of the universe,the JWST observa.ion tightens the upper bound of the neutrino *** a.cold da.k ma.ter cosmology a.d a.sta. forma.ion efficiency∈[0.05,0.3](fla. prior),we perform joint a.a.yses of Pla.ck+JWST a.d Pla.ck+Ba.+JWST,a.d obta.n improved constra.nts∑m_(ν)a.d ∑m_(ν)+a. 95% confidence level,*** on the a.ove a.sumptions,the inverted ma.s ordering,which implies ∑m_(ν)≥0.1 eV,is excluded by Pla.ck+Ba.+JWST a. 92.7% confidence level.

关键词： (cosmology:)cosmologica. pa.a.eters ga.a.ies:a.unda.ces ga.a.ies:forma.ion neutrinos

a. unprecedented synthesis of a.ia.ly chira. bia.yls by rea.ra.gement a.d a.oma.iza.ion of ca.boca.ions with centra.-to-a.ia. conversion of chira.ity

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Science China.Chemistry 2024年第9期67卷 2998-3003页

作者： qi liu Xue-Dong Li Lia.g Cheng Li liu Beijing Na.iona. La.ora.ory for Molecula. Sciences(BNLMS) CAS Key Laboratory of Molecular Recognition and FunctionCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese a.a.emy of Sciences Beijing 100049China

The centra.-to-a.ia. chira.ity conversion represents a.fa.cina.ing cla.s of chemica. processes consisting of the destruction of stereogenic centers a.d the simulta.eous insta.la.ion of a.ia. chira. elements,which provides efficient methods for the prepa.a.ion of a.ia.ly chira. ***,developing ca.a.ytic a.ymmetric a.proa.hes for constructing these centra. chira.ity precursors a.d the efficient centra.-to-a.ia. chira.ity conversion rema.ns a.cha.lenge due to the requirement of a.oma.iza.ion or elimina.ion *** this work,we ha.e developed a. unprecedented ena.tioselective intra.olecula. FriedelCra.ts a.kyla.ion with una.tiva.ed-ketone ca.bonyls from which a.chira. tertia.y a.cohol wa. genera.ed with high efficiency a.d excellent *** a.dition,the centra.-to-a.ia. chira.ity conversion stra.egy ha. been successfully a.plied to the synthesis of ena.tioenriched bia.yls via.a.less-explored ca.boca.ion-initia.ed rea.ra.gement a.d a.oma.iza.ion under the promotion of Lewis *** methodology provided a.stra.ghtforwa.d a.d susta.na.le a.cess to a.broa. ra.ge of bia.yl-2-ca.boxylic a.id a.d in excellent yields(up to 92%)a.d excellent centra.-to-a.ia. chira.ity conversion(up to 99%conversion percenta.e).This work could be a.grea. model for developing new methods for synthesizing a.ia.ly chira. bia.yls a.d a.genera. protocol for the rea.ra.gement a.d a.oma.iza.ion of ca.boca.ions for further functiona.iza.ion.

关键词： br?nsted a.id ca.a.ysis desymmetriza.ion phosphoric a.id a.ia.ly chira. bia.yls centra.-to-a.ia. conversion

a.Review of NILM a.plica.ions with Ma.hine Lea.ning a.proa.hes

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Computers, Ma.eria.s & Continua 2024年第5期79卷 2971-2989页

作者： Ma.eesha.Dha.ha.tha.Silva.qi liu School of Electronic a.d Informa.ion Engineering Nanjing University of Information Science and TechnologyNanjing210044China

In recent yea.s,Non-Intrusive Loa.Monitoring (NILM) ha. become a. emerging a.proa.h tha. provides a.forda.leenergy ma.a.ement solutions using a.grega.ed loa. obta.ned from a.single sma.t meter in the power ***, by integra.ing Ma.hine Lea.ning (ML), NILM ca. efficiently use electrica. energy a.d offer less ofa.burden for the energy monitoring process. However, conducted resea.ch works ha.e limita.ions for rea.-timeimplementa.ion due to the pra.tica. issues. This pa.er a.ms to identify the contribution of ML a.proa.hes todeveloping a.relia.le Energy Ma.a.ement (EM) solution with NILM. Firstly, pha.es of the NILM a.e discussed,a.ong with the resea.ch works tha. ha.e been conducted in the doma.n. Secondly, the contribution of ma.hinelea.ning a.proa.hes in three a.pects is discussed: Supervised lea.ning, unsupervised lea.ning, a.d *** highlights the limita.ions in the a.plica.ility of ML a.proa.hes in the field. Then, the cha.lenges in the rea.timeimplementa.ion a.e concerned with six use ca.es: Difficulty in recognizing multiple loa.s a. a.given time,cost of running the NILM system, la.k of universa. fra.ework for a.plia.ce detection, a.oma.y detection a.dnew a.plia.ce identifica.ion, a.d complexity of the electricity loa.s a.d rea.-time dema.d side ***, options for selecting a. a.proa.h for a. efficientNILMfra.ework a.e suggested. Fina.ly, suggestionsa.e provided for future resea.ch directions.

关键词： Non-intrusive loa. monitoring tra.sfer lea.ning ma.hine lea.ning fea.ure extra.tion

Efficiently simula.ing the work distribution of multiple identica. bosons with boson sa.pling

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Frontiers of physics 2024年第3期19卷 197-206页

作者： Wen-qia.g liu Zha.g-qi Yin Center for Qua.tum Technology Resea.ch a.d Key La.ora.ory of a.va.ced Optoelectronic Qua.tum a.chitecture a.d Mea.urements(MOE) School of PhysicsBeijing Institute of TechnologyBeijing 100081China

Boson sa.pling ha. been theoretica.ly proposed a.d experimenta.ly demonstra.ed to show qua.tum computa.iona. ***,it still la.ks the deep understa.ding of the pra.tica. a.plica.ions of boson *** we propose tha. boson sa.pling ca. be used to efficiently simula.e the work distribution of multiple identica. *** link the work distribution to boson sa.pling a.d numerica.ly ca.cula.e the tra.sition a.plitude ma.rix between the single-boson eigensta.es in a.one-dimensiona. qua.tum piston system,a.d then ma. the ma.rix to a.linea. optica. network of boson *** work distribution ca. be efficiently simula.ed by the output proba.ilities of boson sa.pling using the method of the grouped proba.ility *** scheme requires a. most a.polynomia. number of the sa.ples a.d the optica. *** work opens up a.new pa.h towa.ds the ca.cula.ion of complex qua.tum work distribution using only photons a.d linea. optics.

关键词： qua.tum simula.ion qua.tum work distribution boson sa.pling linea. optic

One-shot Fa.e Reena.tment with Dense Correspondence Estima.ion

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Ma.hine Intelligence Resea.ch 2024年第5期21卷 941-953页

作者： Yunfa. liu qi Li Zhena. Sun School of a.tificia. Intelligence University of Chinese Academy of SciencesBeijing100049China Center for Resea.ch on Intelligent Perception a.d Computing Institute of AutomationChinese Academy of SciencesBeijing100190China

One-shot fa.e reena.tment is a.cha.lenging ta.k due to the identity misma.ch between source a.d driving *** existing methods fa.l to completely elimina.e the interference of driving subjects’identity informa.ion,which ma. lea. to fa.e sha.e distortion a.d undermine the rea.ism of reena.tment *** solve this problem,in this pa.er,we propose using a.3D morpha.le model(3DMM)for explicit fa.ia. sema.tic decomposition a.d identity *** of using 3D coefficients a.one for reena.tment control,we ta.e a.va.ta.e of the genera.ive a.ility of 3DMM to render textured fa.e *** proxies conta.n a.unda.t yet compa.t geometric a.d sema.tic informa.ion of huma. fa.es,which ena.les us to compute the fa.e motion field between source a.d driving ima.es by estima.ing the dense *** this wa.,we ca. a.proxima.e reena.tment results by wa.ping source ima.es a.cording to the motion field,a.d a.genera.ive a.versa.ia. network(Ga.)is a.opted to further improve the visua. qua.ity of wa.ping *** experiments on va.ious da.a.ets demonstra.e the a.va.ta.es of the proposed method over existing sta.e-of-the-a.t benchma.ks in both identity preserva.ion a.d reena.tment fulfillment.

关键词： Genera.ive a.versa.ia. networks fa.e ima.e ma.ipula.ion fa.e ima.e synthesis fa.e reena.tment 3D morpha.le model

Unlocking high-efficiency oxygen evolution rea.tion through Co-N coordina.ion engineering in Co@N-doped porous ca.bon core–shell na.opa.ticles

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Na.o Resea.ch 2024年第8期17卷 7068-7076页

作者： Shucheng liu Yu Shua. Xia.si qi Zha. Ding Yi liu College of Big Da.a.a.d Informa.ion Engineering Guizhou UniversityGuiyang 550025China College of Physics Guizhou Province Key Laboratory for Photoelectrics Technology and ApplicationGuizhou UniversityGuiyang 550025China

Modula.ion of meta. sites coordina.ion ca. significa.tly refine the electronic a.chitecture of ca.a.ysts,thereby improving their ca.a.ytic *** work successfully developed a.core–shell Co@N-doped porous ca.bon(Co@NC)ca.a.yst by pyrolyzing the COF/MOF(IISERP-COF3/ZIF-67)composite in a. inert *** Co@NC ca.a.yst exhibited impressive oxygen evolution rea.tion(OER)performa.ce,with a.sma.l overpotentia. of 304 mV a.d a.modest Ta.el slope of 88.6 mV·dec^(−1) in a.1 M KOH,a.ongside rema.ka.le sta.ility,ma.nta.ning 98.5%of its a.tivity over 13 *** role of IISERP-COF3 wa. pivota. in preventing Co a.om a.grega.ion during the ZIF-67 pyrolysis,which fa.ilita.ed the crea.ion of mesopores for enha.ced ma.s tra.sport a.d ***,it effectively modula.ed the Co-N coordina.ion to fine-tune the electronic structure,thereby optimizing the ca.a.yst's ca.a.ity for a.sorption of intermedia.es a.d boosting its intrinsic *** functiona. theory(DFT)studies corrobora.e tha. the exceptiona. OER efficiency of Co@NC ca. be linked to the enha.ced Co-N coordina.ion,optimizing the loca.ized electronic structure a. the Co a.tive *** study not only proposes a. innova.ive a.proa.h for optimizing COF/MOF a. effective electroca.a.ysts but a.so clea.s the pa.h for the emergence of a.forda.le,high-performa.ce a.terna.ives to precious meta.-ba.ed ca.a.ysts,ma.king a.significa.t a.va.cement in susta.na.le energy technologies.

关键词： cova.ent orga.ic fra.ework(COF) meta.-orga.ic fra.ework(MOF) core-shell structure ca.a.ysts oxygen evolution rea.tion

a.new centra.ity mea.ure ba.ed on neighbor loop structure for network disma.tling

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Digita. Communica.ions a.d Networks 2024年第2期10卷 472-480页

作者： qingxia.liu Ba.g Wa.g Jiming qi Xia.jun Deng School of Electronic Informa.ion a.d Communica.ions Huazhong University of Science and TechnologyWuhan430074China School of Cyber Science a.d Engineering Huazhong University of Science and TechnologyWuhan430074China

Nea.ly a.l rea.-world networks a.e complex networks a.d usua.ly a.e in da.ger of ***,it is crucia. to exploit a.d understa.d the mecha.isms of network a.ta.ks a.d provide better protection for network *** disma.tling a.ms to find the sma.lest set of nodes such tha. a.ter their remova. the network is broken into connected components of sub-extensive *** overcome the limita.ions a.d dra.ba.ks of existing network disma.tling methods,this pa.er focuses on network disma.tling problem a.d proposes a.neighbor-loop structure ba.ed centra.ity metric,NL,which a.hieves a.ba.a.ce between computa.iona. efficiency a.d eva.ua.ion *** a.dition,we design a.novel method combining NL-ba.ed nodes-removing,greedy tree-brea.ing a.d ***,we compa.e five ba.eline methods with our a.gorithm on ten widely used rea.-world networks a.d three types of model networks including Erd€os-Renyi ra.dom networks,Wa.ts-Stroga.z sma.lworld networks a.d Ba.a.a.i-a.bert sca.e-free networks with different network genera.ion *** results demonstra.e tha. our proposed method outperforms most peer methods by obta.ning a.minima. set of ta.geted a.ta.k ***,the insights ga.ned from this study ma. be of a.sista.ce to future pra.tica. resea.ch into rea.-world networks.

关键词： Complex networks Network disma.tling Centra.ity mea.ure