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2014 International Conference on Advanced Nano-Technology and Biomedical Material(ANTBM 2014)

作者： Yu-chen Wang Su-xue Peng Jian-jun Yan Yi-qin Wang Yi-ming Hao Rui Guo Guo-ping Liu East China University of Science and Technology Shanghai University of Traditional Chinese Medicine

Palm-print medicine is a discipline in traditional Chinese medicine(TCM), equivalent to thepalm-print diagnosis discipline and palm medicine. And it's a meaningful work to combine the biometric identification technology with traditional Chinese palm-print medicine for the diagnosis of human diseases. According to the characteristics of palm-print images, this paper makes a simple summary of the key technology and core algorithm in the field of palm-print identification.

关键词： Palm-print recognition algorithm research Image acquisition

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Optimal multivariate method for Raman spectroscopy based diagnosis of nasopharyngeal carcinoma

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JOURNAL OF APPLIED PHYSICS 2013年第24期114卷 244702-244702页

作者： Chen, Bingling Li, Shaoxin Li, Jianghua Guo, Zhouyi Chen, Qiuyan Mai, Haiqiang S China Normal Univ Coll Biophoton MOK Key Lab Laser Life Sci Guangzhou 510631 Guangdong Peoples R China S China Normal Univ Coll Biophoton Lab Photon Chinese Med Guangzhou 510631 Guangdong Peoples R China Guangdong Med Coll Sch Informat Engn Dongguan 523808 Peoples R China Sch Mech & Elect Engn Shenzhen Inst Informat Technol Shenzhen 518172 Peoples R China Sun Yat Sen Univ Ctr Canc Dept Nasopharyngeal Carcinoma Guangzhou 510060 Guangdong Peoples R China Sun Yat Sen Univ Ctr Canc State Key Lab Oncol South China Guangzhou 510060 Guangdong Peoples R China

In this paper, we evaluated four kinds of classification algorithms on Raman spectra for nasopharyngeal carcinoma (NPC) diagnosis: Bayesian classification (BC), Linear discriminate analysis (LDA), Mahalanobis distance after the principal component analysis (PCA);as well the Genetic algorithm-LDA. A total of 225 Raman spectra were acquired from 120 tissue sites of 63 patients, in which 56 Raman spectra were from normal tissue, whereas 171 Raman spectra were from cancer nasopharyngeal tissue. The averaged Raman spectrum of NPC could be distinguished from that of the control group by the above multivariate analysis. Discrimination analysis of PCA-BC revealed that the highest sensitivity, specificity and overall accuracy of cancer diagnosis were 98% (1/56), 99% (1/171), and 99%, respectively. The results showed that Raman spectroscopy in combination with Bayesian classification had high enough sensitivity and specificity to accurately detect and diagnose NPC. (C) 2013 AIP Publishing LLC.

关键词： NASOPHARYNX cancer RAMAN spectroscopy algorithm research PRINCIPAL components analysis BAYESIAN analysis

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Spin-neurons: A possible path to energy-efficient neuromorphic computers

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JOURNAL OF APPLIED PHYSICS 2013年第23期114卷 234906-234906页

作者： Sharad, Mrigank Fan, Deliang Roy, Kaushik Purdue Univ Sch Elect & Comp Engn W Lafayette IN 47907 USA

Recent years have witnessed growing interest in the field of brain-inspired computing based on neural-network architectures. In order to translate the related algorithmic models into powerful, yet energy-efficient cognitive-computing hardware, computing-devices beyond CMOS may need to be explored. The suitability of such devices to this field of computing would strongly depend upon how closely their physical characteristics match with the essential computing primitives employed in such models. In this work, we discuss the rationale of applying emerging spin-torque devices for bio-inspired computing. Recent spin-torque experiments have shown the path to low-current, low-voltage, and high-speed magnetization switching in nano-scale magnetic devices. Such magnetometallic, current-mode spin-torque switches can mimic the analog summing and "thresholding" operation of an artificial neuron with high energy-efficiency. Comparison with CMOS-based analog circuit-model of a neuron shows that "spin-neurons" (spin based circuit model of neurons) can achieve more than two orders of magnitude lower energy and beyond three orders of magnitude reduction in energy-delay product. The application of spin-neurons can therefore be an attractive option for neuromorphic computers of future. (C) 2013 AIP Publishing LLC.

关键词： NEURAL network research algorithm research MAGNETIZATION COMPLEMENTARY metal oxide semiconductors MAGNETIC devices

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Small-scale horizontal variability of snow, sea-ice thickness and freeboard in the first-year ice region north of Svalbard

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ANNALS OF GLACIOLOGY 2013年第62期54卷 261-266页

作者： Haapala, Jari Lensu, Mikko Dumont, Marie Renner, Angelika H. H. Granskog, Mats A. Gerland, Sebastian Finnish Meteorol Inst FIN-00101 Helsinki Finland Norwegian Polar Res Inst Fram Ctr Tromso Norway CEN CNRM GAME Meteo France CNRS F-38041 Grenoble France

Variability of sea-ice and snow conditions on the scale of a few hundred meters is examined using in situ measurements collected in first-year pack ice in the European Arctic north of Svalbard. Snow thickness and surface elevation measurements were performed in the standard manner using a snow stick and a rotating laser. Altogether, 4109 m of measurement lines were surveyed. The snow loading was large, and in many locations the ice freeboard was negative (38.8% of snowline measurements), although the modal ice and snow thickness was 1.8 m. The mean of all the snow thickness measurements was 36 cm, with a standard deviation of 26 cm. The mean freeboard was only 3 cm, with a standard deviation of 23 cm. There were noticeable differences in snow thickness among the measurement sites. Over the undeformed ice areas, the mean snow thickness and freeboard were 23 and 2.4 cm, respectively. Over the ridged ice areas, the mean freeboard was only -0.3 cm due to snow accumulation on the sails of ridges (average thickness 54 cm). These findings imply that retrieval algorithms for converting freeboard to ice thickness should take account of spatial variability of snow cover.

关键词： SEA ice research SNOW THICKNESS measurement algorithm research PRECIPITATION (Meteorology)

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Exact Exponential algorithms

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COMMUNICATIONS OF THE ACM 2013年第3期56卷 80-88页

作者： Fomin, Fedor V. Kaski, Peteri Univ Bergen Inst Informatikk N-5020 Bergen Norway Aalto Univ Dept Informat & Comp Sci Aalto Finland

Discovering surprises in the face of intractability.

关键词： EXPONENTIAL functions algorithm research PROBLEM solving PARAMETER estimation APPROXIMATION algorithms COMPUTER science research

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Spectral Sparsification of Graphs: Theory and algorithms

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COMMUNICATIONS OF THE ACM 2013年第8期56卷 87-94页

作者： Batson, Joshua Spielman, Daniel A. Srivastava, Nikhil Teng, Shang-Hua MIT Cambridge MA 02139 USA Yale Univ New Haven CT 06520 USA Microsoft Res Bangalore Karnataka India

Graph sparsification is the approximation of an arbitrary graph by a sparse graph. We explain what it means for one graph to be a spectral approximation of another and review the development of algorithms for spectral sparsification. In addition to being an interesting concept, spectral sparsification has been an important tool in the design of nearly linear-time algorithms for solving systems of linear equations in symmetric, diagonally dominant matrices. The fast solution of these linear systems has already led to breakthrough results in combinatorial optimization, including a faster algorithm for finding approximate maximum flows and minimum cuts in an undirected network.

关键词： GRAPH theory SPARSE graphs algorithm research NETWORK analysis (Planning) LAPLACIAN matrices LINEAR equations

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Generation of Wannier functions for photonic crystals

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Physical Review B 2013年第7期88卷 075201-075201页

作者： Christian Wolff Patrick Mack Kurt Busch Max Born Institute Max-Born-Straße 2A 12489 Berlin Germany Institut für Theoretische Festkörperphysik Karlsruhe Institute of Technology (KIT) Wolfgang-Gaede-Straße 1 D-76128 Karlsruhe Germany Humboldt-Universität zu Berlin Institute für Physik AG Theoretische Optik & Photonik Newtonstraße 15 12489 Berlin Germany

We present an approach for the efficient generation of Wannier functions for Photonic Crystal computations that is based on a combination of group-theoretical analysis and efficient minimization strategies. In particular, we describe the symmetry properties that allow for exponential localization of Wannier functions and how they are related to the underlying Bloch mode symmetries of the photonic band structure and we show that no exponentially localized Wannier functions can be created from the physical modes of a three-dimensional crystal. Moreover, we comment on the use of conjugate gradient and randomized minimization algorithms that—together with the group theoretical considerations—facilitate the efficient numerical determination of maximally localized Wannier functions for many bands. This is a requirement for the accurate computation of Photonic Crystal functional elements and devices.

关键词： PHOTONIC crystals GROUP theory ENERGY bands algorithm research CONJUGATE gradient methods

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Study on the Economical Distribution of load Based on The Lagrangian Multipliers

Study on the Economical Distribution of load Based on The La...

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4th International Conference on Manufacturing Science and Engineering (ICMSE 2013)

作者： Wan Xiaohang Wang Jiangang Dong Zhaowei Zhang Shijun Hebei Coll Ind & Technol Shijiazhuang 050091 Hebei Peoples R China Hebei Radio & TV Univ Shijiazhuang 050080 Hebei Peoples R China Shijiazhuang Coking & Chexm Grp Ltd Shijiazhuang 050031 Hebei Peoples R China

ISBN: (纸本)9783037857243

The main objective of this study is to investigate the economical distribution of generator load based on the Lagrangian Multipliers. The reasonable economical distribution of generator load based on the lagrangian multipliers model is established in this paper, which uses the appropriate mathematics optimized algorithms whose computation precision is higher and convergence characteristics is good too. This algorithm improves the efficiency of computation, which is very significant in engineering

关键词： load economical distribution algorithm research Lagrangian Multipliers

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Wide-field subsecond temporal resolution optical monitoring systems for the detection and study of cosmic hazards

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PHYSICS-USPEKHI 2013年第8期56卷 836-842页

作者： Beskin, G. M. Karpov, S. V. Plokhotnichenko, V. L. Bondar, S. F. Perkov, A. V. Ivanov, E. A. Katkova, E. V. Sasyuk, V. V. Shearer, A. Russian Acad Sci Special Astrophys Observ Nizhnii Arkhyz Karachai Cirkas Russia OJC RPC PSI Arkhyz Opt Observat Ctr Nizhnii Arkhyz Karachai Cirkas Russia Kazan Fed Univ Kazan Russia Natl Univ Ireland Sch Phys Galway Ireland

In this article, the author focuses on the utility of optical telescopes equipped with detectors, and time resolution for studying cosmic objects of both natural and artificial origins. Topics discussed include polarization measurements, using the Favor and Tortora cameras, the movement of satellites and meteors could be registered, and Spaceguard Survey program. Other topics discussed include package of algorithms and programs for online, and data processing.

关键词： OPTICAL telescopes DETECTORS research CAMERAS ELECTRONIC data processing algorithm research

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The research on Electronic Tag Quantity Estimate Arithmetic Based on Probability Statistics

The Research on Electronic Tag Quantity Estimate Arithmetic ...

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International Workshop on Internet of Things (IOT Workshop 2012)

作者： Zhou, Lin Li, Zhen Chen, Yingmei Li, Tong Xian Commun Inst Xian 710106 Peoples R China Army Unit 68036 Xian 710061 Peoples R China Xian Univ Architecture & Technol Xian 710055 Peoples R China

ISBN: (纸本)9783642324260

In the RFID system, the precise estimation of electronic tag number is very important for increasing tag identification precision and efficiency. The paper introduces three estimate arithmetic based on probability statistics, and analyzes and compare the arithmetic performance through mathematic analyze and simulation experiment. The result shows that the ZE estimate arithmetic, which estimate based on zero frame, and the CE estimate arithmetic, which based on conflict frame, can precisely estimate the number of tags under certain system load, and it also indicates that the max tag number which CE can estimate is bigger than ZE with the same system time slots, and the difference is a linear relationship with the system time slots.

关键词： RFID electronic tag probability statistics number estimate algorithm research

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