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8th SIGHAN Workshop on Chinese Language Processing, SIGHAN 2015

作者： Zhang, Shuiyuan Xiong, Jinhua Hou, Jianpeng Zhang, Qiao Cheng, Xueqi CAS Key Laboratory of Network Data Science and Technology China Institute of Computing Technology Chinese Academy of Sciences China University of Chinese Academy of Sciences China

ISBN: (纸本)9781941643570

Increased interest in China from foreigners has led to a corresponding interest in the study of Chinese. However, the learning of Chinese by non-native speakers will encounter many difficulties, Chinese spelling check techniques for Chinese as a Foreign Language(CFL) learners is highly desirable. This paper presents our work on the SIGHAN-2015 Chinese Spelling Check task. The task focuses on spelling checking on Chinese essays written by CFL learners. We propose a unified framework called HANSpeller++ based on our previous HANSpeller for Chinese spelling correction. The framework consists of candidate generating,candidates re-ranking and final global decision making. Experiments show good performance on the test data of the task. © 2015 Proceedings of the 8th SIGHAN Workshop on Chinese Language Processing, SIGHAN 2015 - co-located with 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing, ACL IJCNLP 2015. All rights reserved.

关键词： Decision making

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Paralleled Extraction Method for Content of Invoice Image Based on TPL

Paralleled Extraction Method for Content of Invoice Image Ba...

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2015 International Conference on Advanced Management Science and Information Engineering(AMSIE 2015)

作者： H.Y.Jin B.Xing X.H.Hei School of Computer Science & Engineering Xi'an University of Technology Shaanxi Key Laboratory for Network Computing and Security Technology

The paper mainly uses a mixed strategy of data and task parallelism to realize parallel extraction date information of *** at the deficiency of ordinary pipeline mode for parallel extraction date information from invoice,we explore a new method of load balanced pipeline based on multiple producers,using parallelism model of mixed data and task provided by TPL(the Task Parallel Library).Finally,it shows this load balanced pipeline program can almost get a linear speedup,which can reach 7.2x in a 8 cores system.

关键词： paralleled TPL pipeline load balanced

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Background modeling methods in video analysis： A review and comparative evaluation

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CAAI Transactions on Intelligence technology 2016年第1期1卷 43-60页

作者： Yong Xu Jixiang Dong Bob Zhang Daoyun Xu Bio-Computing Research Center Shenzhen Graduate School Harbin Institute of Technology 518055 Shenzhen China Shenzhen Key Laboratory of Network Oriented Intelligent Computation Shenzhen China Department of Computer and Information Science University of Macao Avenida da Universidade Taipa Macao China The College of Computer Science and Technology Guizhou University Guiyang 550025 Guizhou China

Foreground detection methods can be applied to efficiently distinguish foreground objects including moving or static objects from back- ground which is very important in the application of video analysis, especially video surveillance. An excellent background model can obtain a good foreground detection results. A lot of background modeling methods had been proposed, but few comprehensive evaluations of them are available. These methods suffer from various challenges such as illumination changes and dynamic background. This paper first analyzed advantages and disadvantages of various background modeling methods in video analysis applications and then compared their performance in terms of quality and the computational cost. The Change *** （CDnet2014） dataset and another video dataset with different envi- ronmental conditions （indoor, outdoor, snow） were used to test each method. The experimental results sufficiently demonstrated the strengths and drawbacks of traditional and recently proposed state-of-the-art background modeling methods. This work is helpful for both researchers and engineering practitioners. Codes of background modeling methods evaluated in this paper are available ***/***.

关键词： Background modeling Video analysis Comprehensive evaluation

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Trusted Boolean Search on Cloud Using Searchable Symmetric Encryption

Trusted Boolean Search on Cloud Using Searchable Symmetric E...

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IEEE International Conference on Trust, security and Privacy in computing and Communications (TrustCom)

作者： Cong Zuo James Macindoe Siyin Yang Ron Steinfeld Joseph K. Liu School of Computer and Information Engineering Zhejiang Gongshang University Zhejiang P.R. China Faculty of Information Technology Clayton Campus Monash University Australia Fujian Provincial Key Laboratory of Network Security and Cryptology Fujian Normal University Fuzhou Fujian China

ISBN: (纸本)9781509032068

A Searchable Symmetric Encryption (SSE) scheme allows a server to search a user's data without having to decrypt the data. This provides the user with a high degree of privacy and is particularly useful when data is stored on Cloud. Numerous SSE schemes have already been proposed and while most have excellent security properties, few meet high performance requirements and most only support searching for a single keyword at a time. The SSE scheme of Cash et al. (CRYPTO 2013) is notable for its high efficiency on restricted forms of Boolean queries, but has low efficiency for, or does not support, other common forms of boolean queries. In this paper, we propose a generalization and optimization of the Cash et al. SSE scheme, which extends to support a much larger class of Boolean queries, and performs no worse, and often with much higher efficiency than the Cash et al. scheme for the remaining queries.

关键词： Servers Indexes Encryption Complexity theory

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Worldwide Soundscapes: A Synthesis of Passive Acoustic Monitoring Across Realms

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Global Ecology and Biogeography 2025年第5期34卷

作者： Kevin F. A. Darras Rodney A. Rountree Steven L. Van Wilgenburg Anna F. Cord Frederik Pitz Youfang Chen Lijun Dong Agnès Rocquencourt Camille Desjonquères Patrick Mauritz Diaz Tzu-Hao Lin Théophile Turco Louise Emmerson Tom Bradfer-Lawrence Amandine Gasc Sarah Marley Marcus Salton Laura Schillé Paul J. Wensveen Shih-Hung Wu Adriana C. Acero-Murcia Orlando Acevedo-Charry Matyáš Adam Jacopo Aguzzi Irmak Akoglu M. Clara P. Amorim Mina Anders Michel André Alexandre Antonelli Leandro Aparecido Do Nascimento Giulliana Appel Stephanie Archer Christos Astaras Andrey Atemasov Jamieson Atkinson Joël Attia Emanuel Baltag Luc Barbaro Fritjof Basan Carly Batist Julio Ernesto Baumgarten Just T. Bayle Sempere Kristen Bellisario Asaf Ben David Oded Berger-Tal Frédéric Bertucci Matthew G. Betts Iqbal S. Bhalla Thiago Bicudo Marta Bolgan Sara Bombaci Gerard Bota Martin Boullhesen Robert A. Briers Susannah Buchan Michal Budka Katie Burchard Giuseppa Buscaino Alice Calvente Marconi Campos-Cerqueira Maria Isabel Carvalho Gonçalves Maria Ceraulo Maite Cerezo-Araujo Gunnar Cerwén Adams A. Chaskda Maria Chistopolova Christopher W. Clark Kieran D. Cox Benjamin Cretois Chapin Czarnecki Luis P. da Silva Wigna da Silva Laurence H. De Clippele David de la Haye Ana Silvia de Oliveira Tissiani Devin de Zwaan M. Eugenia Degano Jessica Deichmann Joaquin del Rio Christian Devenish Ricardo Díaz-Delgado Pedro Diniz Dorgival Diógenes Oliveira-Júnior Thiago Dorigo Saskia Dröge Marina Duarte Adam Duarte Kerry Dunleavy Robert Dziak Simon Elise Hiroto Enari Haruka S. Enari Florence Erbs Britas Klemens Eriksson Pınar Ertör-Akyazi Nina C. Ferrari Luane Ferreira Abram B. Fleishman Paulo J. Fonseca Bárbara Freitas Nicholas R. Friedman Jérémy S. P. Froidevaux Svetlana Gogoleva Carolina Gonzaga José Miguel González Correa Eben Goodale Benjamin Gottesman Ingo Grass Jack Greenhalgh Jocelyn Gregoire Samuel Haché Jonas Hagge William Halliday Antonia Hammer Tara Hanf-Dressler Sylvain Haupert Samara Haver Becky Heath Daniel Hending Jose Hernandez-Blanco Dennis Higgs EFNO ECODIV INRAE Domaine des Barres Nogent-sur-Vernisson France Sustainable Agricultural Systems & Engineering Lab School of Engineering Westlake University Hangzhou Zhejiang China Chair of Computational Landscape Ecology Faculty of Environmental Sciences Dresden University of Technology Dresden Germany Biology Department University of Victoria Victoria British Columbia Canada The Fish Listener Waguoit Massachusetts USA Terrestrial Unit Prairie Region Canadian Wildlife Service Environment & Climate Change Canada Prairie & Northern Wildlife Research Centre Saskatoon Saskatchewan Canada Agro-ecological Modeling Group Faculty of Agriculture University of Bonn Bonn Germany Marine Mammal and Marine Bioacoustics Laboratory Department of Deep Sea Science Institute of Deep-sea Science and Engineering Chinese Academy of Sciences Sanya Hainan China Institut de Systématique Évolution Biodiversité Muséum National d’Histoire Naturelle Paris France Université Grenoble Alpes Université Savoie Mont Blanc CNRS LECA Grenoble France Climate Change and Biodiversity Hanns R. Neumann Stiftung Indonesia Muaradua Indonesia Biodiversity Research Center Academia Sinica Nankang Taipei Taiwan ENES Bioacoustics Research Laboratory University of Saint-Etienne CRNL CNRS UMR 5292 Inserm UMR_S 1028 Saint-Etienne France Australian Antarctic Division Science Branch Department of Climate Change Energy Environment and Water Channel Highway Kingston Tasmania Australia Biological and Environmental Sciences University of Stirling Stirling Scotland Centre for Conservation Science RSPB Edinburgh UK IMBE Aix Marseille Univ Avignon Univ CNRS IRD Aix-en-Provence France Scotland's Rural College Craibstone Estate Aberdeen UK BIOGECO INRAE University of Bordeaux Cestas France Westman Islands Research Centre University of Iceland Vestmannaeyjar Iceland Qigu Research Center Taiwan Biodiversity Research Institute Nantou County Taiwan Programa de Pós-graduação em Ecologia

Aim The urgency for remote, reliable and scalable biodiversity monitoring amidst mounting human pressures on ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), which can track life underwater and on land. However, we lack a unified methodology to report this sampling effort and a comprehensive overview of PAM coverage to gauge its potential as a global research and monitoring tool. To address this gap, we created the Worldwide Soundscapes project, a collaborative network and growing database comprising metadata from 416 datasets across all realms (terrestrial, marine, freshwater and subterranean). Location Worldwide, 12,343 sites, all ecosystem types. Time Period 1991 to present. Major Taxa Studied All soniferous taxa. Methods We synthesise sampling coverage across spatial, temporal and ecological scales using metadata describing sampling locations, deployment schedules, focal taxa and audio recording parameters. We explore global trends in biological, anthropogenic and geophysical sounds based on 168 selected recordings from 12 ecosystems across all realms. Results Terrestrial sampling is spatially denser (46 sites per million square kilometre—Mkm 2 ) than aquatic sampling (0.3 and 1.8 sites/Mkm 2 in oceans and fresh water) with only two subterranean datasets. Although diel and lunar cycles are well sampled across realms, only marine datasets (55%) comprehensively sample all seasons. Across the 12 ecosystems selected for exploring global acoustic trends, biological sounds showed contrasting diel patterns across ecosystems, declined with distance from the Equator, and were negatively correlated with anthropogenic sounds. Main Conclusions PAM can inform macroecological studies as well as global conservation and phenology syntheses, but representation can be improved by expanding terrestrial taxonomic scope, sampling coverage in the high seas and subterranean ecosystems, and spatio-temporal replication in freshwater habitats. Overall, this

关键词： ARU automated sound recorder biodiversity conservation biology ecoacoustics IUCN GET realm Passive Acoustic Monitoring phenology soundscape ecology

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FE-brick: Re-definition and re-design of fe model in next-generation router architecture

FE-brick: Re-definition and re-design of fe model in next-ge...

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作者： Gao, Xianming Wang, Baosheng Wang, Xu An Zhang, Xiaozhe School of Computer National University of Defense Technology Changsha410073 China Key Laboratory of Network and Information Security Engineering University of CAPF Xi'an710086 China

In traditional router, it usually consists of forwarding element (FE) and control element (CE). However, there is a tight coupling between FE model and logical functions, thus restricting service innovation and user customized ability. In this context, we explore the insightful prospect of functional integration between logical function-based FE model and strategy-driven FE model to propose a new FE model. In this paper, we firstly propose an idea of FE-Brick model for next-generation router architecture, which includes two types of elements: logical function-based FE (LFFE) and strategy-driven FE (SFE). LFFE is a collection of logical functions, which is the same as FE model in traditional routers;and SFE uses flow-strategy to determine forwarding behavior of each packet. FE model can be regarded as a cluster of SFEs and LFFEs, where these elements are optionally interconnected in the similar way as the "building block" game. At last, we establish two demos on FE-Brick model and further evaluate their performance. © 2015 World Scientific Publishing Company.

关键词： Brick

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Radiation constrained wireless charger placement

Radiation constrained wireless charger placement

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IEEE Annual Joint Conference: INFOCOM, IEEE Computer and Communications Societies

作者： Haipeng Dai Yunhuai Liu Alex X. Liu Lingtao Kong Guihai Chen Tian He State Key Laboratory for Novel Software Technology Nanjing University Nanjing Jiangsu CHINA Third Research Institute of Ministry of Public Security Shanghai CHINA Shanghai key Laboratory of Scalable Computing and Systems Shanghai Jiao Tong University Shanghai China Computer Science and Engineering University of Minnesota Minneapolis MN USA Department of Automation Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9781467399548

Wireless Power Transfer has become a commercially viable technology to charge devices because of the convenience of no power wiring and the reliability of continuous power supply. This paper concerns the fundamental issue of wireless charger placement with electromagnetic radiation (EMR) safety. Although there are a few wireless charging schemes consider EMR safety, none of them addresses the charger placement issue. In this paper, we propose PESA, a wireless charger Placement scheme that guarantees EMR SAfety for every location on the plane. First, we discretize the whole charging area and formulate the problem into the Multidimensional 0/1 Knapsack (MDK) problem. Second, we propose a fast approximation algorithm to the MDK problem. Third, we optimize our scheme to improve speed by double partitioning the area. We prove that the output of our algorithm is better than (1 - ϵ) of the optimal solution to PESA with a smaller EMR threshold (1 - ϵ/2)Rt and a larger EMR coverage radius (1 + ϵ/2)D. We conducted both simulations and field experiments to evaluate the performance of our scheme. Our experimental results show that in terms of charging utility, our algorithm outperforms the prior art by up to 45.7%.

关键词： Safety Wireless communication Wireless sensor networks Approximation algorithms Partitioning algorithms Inductive charging Aggregates

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A twin-multi-ring channel model for Massive MIMO system

A twin-multi-ring channel model for Massive MIMO system

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International Symposium on Communications and Information Technologies (ISCIT)

作者： Ying Chen Yue Li Songlin Sun Xinzhou Cheng Xuqi Chen School of Information and Communication Engineering Beijing University of Posts and Telecommunications China Ministry of Education Key Laboratory of Trustworthy Distributed Computing and Service (BUPT) China Unicom Network Technology Research Institute China Posts & Telecommunications Planning and Designing Institute Co. Ltd China

ISBN: (纸本)9781509041008

A Massive MIMO system is equipped with more antennas than traditional MIMO system. Channel modeling for MIMO system has been well studied. However, study for Massive MIMO system channel modeling has just begun. In this paper, we prove the correctness of the spherical wave assumption and the non-stationary properties on both time and array axes. Then, we propose a novel twin-multi-ring channel model for massive MIMO. This model is based on the extension of a multi-ring model for MIMO. Furthermore, we consider the appearance and disappearance of clusters by “Cluster generation algorithm”. Finally, we make the simple numerical analysis for the model, and we find the characteristic is well matching the measurements.

关键词： MIMO Antenna arrays Receiving antennas Channel models Fading channels Transmitting antennas Wireless communication

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A nonlocal interferometric phase filtering strategy for practical InSAR system

A nonlocal interferometric phase filtering strategy for prac...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Xue Lin Dongsheng Fang Fangfang Li Ke Wang Shandong Provincial Key Laboratory of Network Based Intelligent Computing Jinan China School of Information Science and Engineering University of Jinan Jinan China Institute of Electronics Chinese Academy of Sciences Beijing China University of Chinese Academy of Sciences Beijing China Key Laboratory of Technology in Geo-spatial Information Processing and Application System Chinese Academy of Sciences Beijing China School of Information Science and Engineering Henan University of Technology Zhengzhou China

Nonlocal interferometric phase filtering methods achieve excellent performance in both noise reduction and texture preservation, even in the case of complicated topography and low coherence. The main limitation of the nonlocal methods is the computational burden. This paper proposed a nonlocal phase filtering strategy for the practical InSAR system, which combine the nonlocal algorithm with the traditional method to improve the efficiency.

关键词： Filtering Coherence Noise reduction Frequency estimation Estimation Algorithm design and analysis Surfaces

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Stability analysis of a worm propagation model with quarantine and vaccination

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International Journal of network security 2016年第3期18卷 493-500页

作者： Wang, Fangwei Yang, Fang Wang, Changguang Zhao, Dongmei Zhang, Yunkia College of Information Technology Hebei Normal University No. 20 South ErHuan Road YuHua District Shijiazhuang050024 China Shaanxi Key Laboratory of Network and System Security Xidian University No. 1 TaiBai South Road YanTa District Xi'an710071 China Department of Science and Technology Hebei Vocational College of Public Security Police No. 587 Gongnong Road Qiaoxi District Shijiazhuang050011 China Department of Information Engineering Shijiazhuang Institute of Railway Technology No. 18 Sishuichang Road Qiaodong District Shijiazhuang050071 China

Internet worms pose a serious threat to the Internet secu-rity. In order to effectively defend against Internet worms, this paper proposes a novel epidemic e-SEIQV model with quarantine and vaccination. Using this e-SEIQV model, we obtain the basic reproduction number for deter-mining whether the worm dies out completely. The global stability of the worm-free equilibrium and the local sta-bility of endemic equilibrium are proved, and determined by the basic reproduction number. Besides the impact of different parameters of this model is studied. Simulation results show that the number of susceptible and infected hosts are consistent with the theoretical analysis. The model provides a theoretical foundation for controlling and forecasting Internet worms.

关键词： network security

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