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International Conference on Computer Science and Network technology (ICCSNT)

作者： Qi Wu Fu-Cai Chen rui-Yang Huang National Digital Switching System Engineering and Technological R&D Center Zhengzhou Henan China

Heterogeneous networks have become an important model to represent complex network. However, many existing community detection methods for dynamic network are hardly applied in heterogeneous networks. In this paper, we present a multi-view learning based algorithm for dynamic heterogeneous networks, which treats network individually, combines heterogeneous information and improves the quality. Compared with the traditional methods, experimental results on real network show that our proposed algorithm can detect the community structure in dynamic heterogeneous networks.

关键词： Heuristic algorithms Heterogeneous networks Clustering algorithms Social network services History Image edge detection Complexity theory

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A dynamic Allocation Algorithm for Physical Carrier resource in BBU Pool of Virtualized Wireless Network

A Dynamic Allocation Algorithm for Physical Carrier Resource...

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International Conference on Cyber-Enabled distributed Computing and Knowledge discovery, CyberC

作者： Ganqiang Lu Caixia Liu Lingshu Li Quan Yuan NDSC National Digital Switching System Engineering & Technological R&D Center Zhengzhou China

ISBN: (纸本)9781467392013

In order to deal with the rapid growth of mobile data traffic and reduce the infrastructure capital expenditure (CAPEX) and operating expense (OPEX), C-rAN is introduced into wireless access network architecture. C-rAN can implement the separation of baseband processing unit (BBU) and remote radio head (rrH). Baseband processing resources are shared by the centralizing deployment of BBU in data center, while rrH is only as a wireless access point that is responsible for sending and receiving signals. Software defined Network (SdN) and Network Function Virtualization (NFV), the candidate technologies for future development of wireless access network, can promote the virtualization of wireless access network. In this paper, the dynamic allocation of carrier resource in BBU pool is studied, and a dynamic combination allocation algorithm based on Karnaugh map and enhance genetic algorithm (KMEG) for resource allocation of carrier resource is also presented. The simulation results show that this algorithm can deal with different mobile service request for underlying resource effectively, which can adjust system capacity dynamically on demand and achieve the dynamic share of heterogeneous underlying resources in BBU pool. In addition, this algorithm can improve the receiving rate of VNs compared with the static resource allocation algorithm, which can enhance the utilization rate of underlying resources and spectrum efficiency greatly.

关键词： resource management Wireless networks Heuristic algorithms dynamic scheduling Virtualization Computer architecture

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Author Correction: The European reference Genome Atlas: piloting a decentralised approach to equitable biodiversity genomics

npj biodiversity

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npj biodiversity 2024年第1期3卷 31页

作者： Ann M Mc Cartney Giulio Formenti Alice Mouton diego de Panis Luísa S Marins Henrique G Leitão Genevieve diedericks Joseph Kirangwa Marco Morselli Judit Salces-Ortiz Nuria Escudero Alessio Iannucci Chiara Natali Hannes Svardal rosa Fernández Tim de Pooter Geert Joris Mojca Strazisar Jonathan M d Wood Katie E Herron Ole Seehausen Phillip C Watts Felix Shaw robert P davey Alice Minotto José M Fernández Astrid Böhne Carla Alegria Tyler Alioto Paulo C Alves Isabel r Amorim Jean-Marc Aury Niclas Backstrom Petr Baldrian Laima Baltrunaite Endre Barta Bertrand BedHom Caroline Belser Johannes Bergsten Laurie Bertrand Helena Bilandija Mahesh Binzer-Panchal Iliana Bista Mark Blaxter Paulo A V Borges Guilherme Borges dias Mirte Bosse Tom Brown rémy Bruggmann Elena Buena-Atienza Josephine Burgin Elena Buzan Alessia Cariani Nicolas Casadei Matteo Chiara Sergio Chozas Fedor Čiampor Angelica Crottini Corinne Cruaud Fernando Cruz Love dalen Alessio de Biase Javier del Campo Teo delic Alice B dennis Martijn F L derks Maria Angela diroma Mihajla djan Simone duprat Klara Eleftheriadi Philine G d Feulner Jean-François Flot Giobbe Forni Bruno Fosso Pascal Fournier Christine Fournier-Chambrillon Toni Gabaldon Shilpa Garg Carmela Gissi Luca Giupponi Jessica Gomez-Garrido Josefa González Miguel L Grilo Björn Grüning Thomas Guerin Nadege Guiglielmoni Marta Gut Marcel P Haesler Christoph Hahn Balint Halpern Peter W Harrison Julia Heintz Maris Hindrikson Jacob Höglund Kerstin Howe Graham M Hughes Benjamin Istace Mark J Cock Franc Janžekovič Zophonias O Jonsson Sagane Joye-dind Janne J Koskimäki Boris Krystufek Justyna Kubacka Heiner Kuhl Szilvia Kusza Karine Labadie Meri Lähteenaro Henrik Lantz Anton Lavrinienko Lucas Leclère ricardo Jorge Lopes Ole Madsen Ghislaine Magdelenat Giulia Magoga Tereza Manousaki Tapio Mappes Joao Pedro Marques Gemma I Martinez redondo Florian Maumus Shane A McCarthy Hendrik-Jan Megens Jose Melo-Ferreira Sofia L Mendes Matteo Montagna Joao Moreno Mai-Britt Mosbech Mónica Moura Zuzana Musilova Eugene Myers Will J N Genomics Institute University of California Santa Cruz CA USA. anmmccar@ucsc.edu. The Vertebrate Genome Laboratory The Rockefeller University New York NY USA. Department of Biology University of Florence Sesto Fiorentino Italy. InBios-Conservation Genetics Laboratory University of Liege Liege Belgium. Leibniz Institut für Zoo und Wildtierforschung Berlin Germany. Berlin Center for Genomics in Biodiversity Research Berlin Germany. Department of Biology University of Antwerp Antwerp Belgium. Institute of Zoology University of Cologne Cologne Germany. Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma Italy. Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra) Barcelona Spain. Naturalis Biodiversity Center Leiden The Netherlands. Neuromics Support Facility VIB Center for Molecular Neurology VIB Antwerp Belgium. Neuromics Support Facility Department of Biomedical Sciences University of Antwerp Antwerp Belgium. Tree of Life Wellcome Sanger Institute Hinxton Cambridge UK. School of Biology and Environmental Science University College Dublin Belfield Ireland. Aquatic Ecology & Evolution Institute of Ecology & Evolution University of Bern Bern Switzerland. Department of Fish Ecology & Evolution Eawag Kastanienbaum Switzerland. Department of Biological and Environmental Science University of Jyvaskyla Jyvaskyla Finland. The Earlham Institute Norwich Research Park Norwich UK. Digital Science London UK. Barcelona Supercomputing Center Spanish National Bioinformatics Institute ELIXIR Spain Getafe Spain. Leibniz Institute for the Analysis of Biodiversity Change Museum Koenig Bonn Bonn Germany. CE3C-Centre for Ecology Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute Faculdade de Ciências Universidade de Lisboa Campo Grande Lisboa Portugal. Centro Nacional de Análisis Genómico (CNAG) Barcelona Spain. Universitat de Barcelona (UB) Barcelona Spain. CIBIO C

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research of micro-blog diffusion effect based on analysis of retweet behavior

Research of micro-blog diffusion effect based on analysis of...

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IEEE International Conference on Cognitive Informatics

作者： Wei Hou Yuan Huang Kao Zhang National Computer Network and Information Security Management Center Beijing China National Digital Switching System Engineering & Technology R&D Center Zhengzhou China

ISBN: (纸本)9781467372916

research on the diffusion effect of micro-blog plays an important role in improving marketing efficiency, strengthening monitoring public opinion and accurately discovering hotspot etc. To solve the problems not taking users' differences into consideration in the previous research, this paper proposes an algorithm to predict scale and depth of retweet massages based on analysis of retweet behavior. With the combination of Lr algorithm and nine related features extracted from micro-blog users themselves, their relationships and micro-blog contents, we proposes a prediction model of retweet behavior. Based on this model, we proposes an algorithm to predict the diffusion effect, which considers the character of information spreading along users and does statistical analysis of adjacent users iteratively. Experimental results on Sina micro-blog dataset show that the algorithm has a prediction accuracy of 87.1% and 81.6% in scale and depth respectively, which indicates the model works well.

关键词： Blogs IEL

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Nonlinear Feature Extraction of Power Amplifiers in Multipath

Nonlinear Feature Extraction of Power Amplifiers in Multipat...

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International Conference on Computer Science and Network technology

作者： Jian Chen Tiandong duan Dept. of Communication Engineering National Digital Switching System Engineering & Technological R&D Center Zhengzhou P.R. China

ISBN: (纸本)9781467381741

Fine feature extraction is the basement of specific emitter identification, but existing researches rarely take the channel environment into consideration. To improve the practicability of the technology under the realistic channel, this paper researches on the method extracting of the fine feature under a simple multipath channel, which estimates the impulse of channel response by small-amplitude symbols, extracts the nonlinearity of power amplifier (PA) by bigger-amplitude symbols and reduces the effects of noise by iteration. That is to say, the method is applicable just for signals with different symbol amplitudes. For simulation, we extracted feature vectors using a 16-QAM signal and the support vector machine was used in training and classifying. Experience shows that the method performs well for identifying same-model emitters in multipath channel especially at a higher SNr.

关键词： emitter identification multipath fine feature extraction PA nonlinearity Feature extraction Power amplifiers Multipath channels channel response nonlinearity Noise effects Support Vector Network Signs and symbols emitters quadrature amplitude modulation signal basement signals Pulses iterative methods 16-QAM

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A method to evaluate the spatial extensibility of a switching unit and network

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Science China(Information Sciences) 2014年第2期57卷 140-156页

作者： ZHANG Bo WU JunTing WANG BinQiang LI Hui National Digital Switching System Engineering Technological R&D Center Shenzhen Key Lab of Cloud Computing Technology and Application

switching units and networks have been analyzed as extensible fabrics,mostly in terms of their scheduling *** traditional literature on switching extensibility has provided complexity theory only relating to the total numbers of inputs(or outputs)and exchange *** paper analyzes switching extensibility in terms of not only the scheduling algorithm and also the fabric *** is found that determining extensibility from soft complexity related to the number of inputs(or outputs)of the scheduling algorithm and the fabric extensibility in previous studies without quantization is a flawed conception.A method is thus proposed to express the spatial extensibility of a switching unit or network in terms of the connections of a switching resource and *** method calculates parameter ES(the efciency of switching)of an m×n switching unit and obtains two functions of the switching unit to describe spatial extensibility along with the number of unilateral inputs or *** is found that the range of ES is(0,1]and three types of switching unit and two types of crosspoint networks have ES=*** is calculated for banyan,Clos,parallel packet,fully interconnected and recirculation switching *** ES value for the banyan switching network is larger than that for other networks,and switching networks are classified into three types that have absolute/linear/denied spatial extensibility according to the limES *** is demonstrated that a switching network has the largest ES value when it contains only the five types of switching unit for which ES=***,a group-switching-first self-routing banyan switching network with lower blocking probability and time delay is deduced,and the ES method is contrasted with two other methods of evaluating spatial extensibility in terms of their mathematical expressions and intuitive graphics,for the five types of switching network listed above.

关键词： spatial extensibility connection state efciency of switching banyan fully interconnected recirculation switching network

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Corrigendum to “Fischer–tropsch diesel production and evaluation as alternative automotive fuel in pilot-scale integrated biomass-to-liquid process” [Appl. Energy 180 (2016) 301–312]

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Applied Energy 2017年 203卷 982-982页

作者： Young-doo Kim Chang-Won Yang Beom-Jong Kim Ji-Hong Moon Jae-Yong Jeong Soo-Hwa Jeong See-Hoon Lee Jae-Ho Kim Myung-Won Seo Sang-Bong Lee Jae-Kon Kim Uen-do Lee Department of Green Process and System Engineering University of Science and Technology (UST) Republic of Korea School of Mechanical Engineering Sungkyunkwan University Republic of Korea Thermochemical Energy System R&D Group Korea Institute of Industrial Technology Republic of Korea Department of Resources and Energy Engineering Chonbuk National University Republic of Korea Gasification Research Center Korea Institute of Energy Research Republic of Korea Alternative Chemicals/Fuel Research Center Korea Research Institute of Chemical Technology Republic of Korea Alternative Fuel R&D Team Korea Petroleum Quality & Distribution Authority (K-Petro) Republic of Korea

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X-ray CT Image reconstruction from Few-views via Total Generalized p-Variation Minimization

X-ray CT Image Reconstruction from Few-views via Total Gener...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society

作者： Hanming Zhang Xiaoqi Xi Bin Yan Yu Han Lei Li Jianlin Chen Ailong Cai National Digital Switching System Engineering and Technological Research Center Zhengzhou 450002 P.R.China.

ISBN: (纸本)9781424492695

Total variation (TV)-based CT image reconstruction, employing the image gradient sparsity, has shown to be experimentally capable of reducing the X-ray sampling rate and removing the unwanted artifacts, yet may cause unfavorable over-smoothing and staircase effects by the piecewise constant assumption. In this paper, we present a total generalized p-variation (TGpV) regularization model to adaptively preserve the edge information while avoiding the staircase effect. The new model is solved by splitting variables with an efficient alternating minimization scheme. With the utilization of generalized p-shrinkage mappings and partial Fourier transform, all the subproblems have closed solutions. The proposed method shows excellent properties of edge preserving as well as the smoothness features by the consideration of high order derivatives. Experimental results indicate that the proposed method could avoid the mentioned effects and reconstruct more accurately than both the TV and TGV minimization algorithms when applied to a few-view problem.

关键词： TV TGpV TGV

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MdC-dFA: A multi-dimensional cube deterministic finite automata-based feature matching algorithm

MDC-DFA: A multi-dimensional cube deterministic finite autom...

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International Conference on Information and Communication technology Convergence (ICTC)

作者： Yuchong Li Xingguo Luo Xiangyu Shao dong Wei National Digital Switching System Engineering and Technological Research Center Zhengzhou P. R. China

ISBN: (纸本)9781467371179

The regular expression matching algorithm (rEM) is widely applied in the deep packet inspection(dPI), which is more flexible and efficient compared with conventional exact matching algorithm. The rEM based on the deterministic finite automaton (dFA) is applicable in the high speed networks due to its linear matching speed. However, it faces the problem of the state explosion simultaneously. Therefore, we propose a multi-dimensional cube deterministic finite automata algorithm (MdC-dFA) for anomaly feature matching. The algorithm divides and compresses redundant states by each dimension, and achieves equivalent state transition by constructing dynamic nodes. Theory and simulation results show that, compared with conventional deterministic finite automata algorithm, the algorithm achieves a logarithm-level compression to the number of states and the storage space while maintaining the time complexity.

关键词： Algorithm design and analysis Heuristic algorithms Explosions Time complexity Automata Mathematical model

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A regular expressions matching algorithm based on templates finite automata

A regular expressions matching algorithm based on templates ...

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International Conference on Information and Communication technology Convergence (ICTC)

作者： Yuchong Li Xingguo Luo Xiangyu Shao dong Wei National Digital Switching System Engineering and Technological Research Center Zhengzhou P. R. China

ISBN: (纸本)9781467371179

When applying the method of the grouping rules to the problem of state explosion of the deterministic Finite Automata (dFA), the efficiency of space compression significantly decreases with the increase of the quantity of the rules. Therefore, the paper proposes the Templates Finite Automata Grouping Algorithm (TFA), which divides rule sets into different groups based on templates of the rules. Each group is used to construct its corresponding matching engine. At the meantime, the number of rule subsets is altered according to the quantity of actual rules and the structure of a system to achieve better matching efficiency. Theoretical analysis and the experiments conducted indicate that comparing with the conventional grouping algorithms, the TFA requires far fewer groups at the relatively similar level of storage space compression; and comparing with other classical dFA improved algorithms, the TFA achieves shorter pretreatment time and demands smaller storage space with no noticeably decrease in the matching efficiency.

关键词： Engines Explosions Automata Algorithm design and analysis Complexity theory Bandwidth Switches

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