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49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, ACL-HLT 2011

作者： Escalante, Hugo Jair Solorio, Thamar Montes-Y-Gómez, Manuel Graduate Program in Systems Eng. Universidad Autónoma de Nuevo León San Nicolás de los Garza NL 66450 Mexico Dept. of Computer and Information Sciences University of Alabama at Birmingham Birmingham AL 35294 United States Computer Science Department INAOE Tonantzintla Puebla 72840 Mexico

ISBN: (纸本)9781932432879

This paper proposes the use of local histograms (LH) over character n-grams for authorship attribution (AA). LHs are enriched histogram representations that preserve sequential information in documents;they have been successfully used for text categorization and document visualization using word histograms. In this work we explore the suitability of LHs over n-grams at the character-level for AA. We show that LHs are particularly helpful for AA, because they provide useful information for uncovering, to some extent, the writing style of authors. We report experimental results in AA data sets that confirm that LHs over character n-grams are more helpful for AA than the usual global histograms, yielding results far superior to state of the art approaches. We found that LHs are even more advantageous in challenging conditions, such as having imbalanced and small training sets. Our results motivate further research on the use of LHs for modeling the writing style of authors for related tasks, such as authorship verification and plagiarism detection. © 2011 Association for Computational Linguistics.

关键词： Text processing

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Caira - A Creative Artificially-Intuitive and Reasoning Agent as conductor of telematic music improvisations

Caira - A Creative Artificially-Intuitive and Reasoning Agen...

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131st Audio Engineering Society Convention 2011

作者： Braasch, Jonas Bringsjord, Selmer Kuebler, Colin Oliveros, Pauline Parks, Anthony Van Nort, Doug Graduate Program in Architectural Acoustics Rensselaer Polytechnic Institute School of Architecture Troy NY 12180 United States Laboratory Department of Cognitive Science Rensselaer Polytechnic Institute Troy NY 12180 United States Laboratory Department of Computer Science Rensselaer Polytechnic Institute Troy NY 12180 United States Arts Department Rensselaer Polytechnic Institute Troy NY 12180 United States

ISBN: (纸本)9781618393968

This paper reports on the architecture and performance of the Creative Artificially-Intuitive and Reasoning Agent Caira as a conductor for improvised avant-garde music. Caira's listening skills are based on a music recognition system that simulates the human auditory periphery to perform an Auditory Scene Analysis (ASA). Its simulation of cognitive processes includes a comprehensive cognitive calculus for reasoning and decision-making using logic-based reasoning. Caira is used as conductor for live music performances with distributed ensembles, where the musicians are connected via the internet. Caira uses a visual score and directs the ensemble members based on tension arc estimations for the individual music performers.

关键词： Decision making

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Opposition-based shuffled PSO with passive congregation applied to FM matching synthesis

Opposition-based shuffled PSO with passive congregation appl...

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IEEE Congress on Evolutionary Computation

作者： Munoz, Daniel M. Llanos, Carlos H. Dos S. Coelho, Leandro Ayala-Rincon, Mauricio Department of Mechanical Engineering Automation and Control Group/GRACO University of Brasilia Brasilia D.F. Brazil Industrial and Systems Engineering Graduate Program LAS/PPGEPS Pontifical Catholic University of Parana Curitiba Parana Brazil Department of Computer Science and Mathematics University of Brasilia Brasilia D.F. Brazil

ISBN: (纸本)9781424478347

Synthesis of musical instruments or human voice is a time consuming process which requires theoretical and experimental knowledge about the synthesis engine. Commonly, performers need to deal with synthesizer interfaces and a process of trial and error for creating musical sounds similar to a target sound. This drawback can be overcome by adjusting automatically the synthesizer parameters using optimization algorithms. In this paper a hybrid particle swarm optimization (PSO) algorithm is proposed to solve the frequency modulation (FM) matching synthesis problem. The proposed algorithm takes advantage of a shuffle process for exchanging information between particles and applies the selective passive congregation and the opposition-based learning approaches to preserve swarm diversity. Both approaches for injecting diversity are based on simple operators, preserving the easy implementation philosophy of the particle swarm optimization. The proposed hybrid particle swarm optimization algorithm was validated for a three-nested FM synthesizer, which represents a 6-dimensional multimodal optimization problem with strong epistasis. Simulation results revealed that the proposed algorithm presented promising results in terms of quality of solutions. © 2011 IEEE.

关键词： Global optimization

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Improving node localization in WSN by using obstruction level indicator

Improving node localization in WSN by using obstruction leve...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Salvador Jauregui-Ortiz Mario Siller Felix Ramos Edson Escalabrin Electrical Engineering and Computer Science Department Center of Research and Advanced Studies Guadalajara Jalisco Mexico Graduate Program in Computer Science Pontifical Catholic University of Parana Brazil Curitiba Parana Brazil

Wireless sensor networks can be used in habitat monitoring for detecting fire, in disaster for helping rescue teams and in agriculture for sensing humidity. Node localization is essential for some important sensor network applications. Despite the high relative accuracy of some localization algorithms, node localization is still an opened research area, due to the physical phenomena such as attenuation, reflection, diffraction, scattering and so forth. The current developed algorithms have different accuracy when are tested under dissimilar environments. We propose to use Smart Beacon Nodes (SBNs) to infer the Obstruction Level Indicator over an occupied area, then, use this indicator for estimating the distance among nodes. In our experimental simulation, SBNs decrease the node localization error of Triangular Centroid Localization and Weighted Centroid Localization up to 18%.

关键词： Accuracy Wireless sensor networks Estimation Testing Attenuation Databases Radar

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Accelerated oxidation of silicon due to x-ray irradiation

Accelerated oxidation of silicon due to x-ray irradiation

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European Conference on Radiation and its Effects on Components and Systems (RADECS)

作者： Shweta Bhandaru En Xia Zhang Daniel M. Fleetwood Robert A. Reed Robert A. Weller Sharon M. Weiss Interdisciplinary Graduate Program in Material Science Vanderbilt University Nashville TN USA Department of Electrical Engineering and Computer Science Vanderbilt University Nashville TN USA

Enhanced rates of oxide growth have been observed on silicon when exposed to high-energy x-ray irradiation. This observed effect could potentially be utilized for remote total ionizing dose-sensing applications.

关键词： Silicon Radiation effects Oxidation Atomic measurements Temperature measurement Optical sensors Atomic layer deposition

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Taiwanese facebook users' motivation and the access of information technology

Taiwanese facebook users' motivation and the access of infor...

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14th International Conference on Human-computer Interaction, HCI International 2011

作者： Tsai, Chun-Ming Huang, Yu-Ting Hsieh, Ji-Lung Department of Computer Science Taipei Municipal University of Education Taipei 100 Taiwan Graduate Program of E-Learning Taipei Municipal University of Education No. 1 Ai-Kuo W. Road Taipei 100 Taiwan Graduate Institute of Libary and Information Studies National Taiwan Nomal University No. 162 He-Ping E. Road Taipei 106 Taiwan

ISBN: (纸本)9783642220975

With the increasing diversity in networked information communication technology (ICTs), the question arises whether users' social, entertainment and information needs are being met. Existing research on Internet information services and traditional portal or blog sites has not been extended to a more recent study of functional community websites such as Facebook. Therefore, this study was designed to administer a questionnaire survey in order to explore the motivation of Taiwan Facebook users of ICT's by analyzing their Facebook use. The study concluded that: (1) Facebook users were attracted to Facebook mainly by social motivations, though some were attracted by the Facebook game simulation of "Farmville", highly publicized in the media. A study of background variables further found that female users who had low education level and low age were more likely motivated by the gaming platform;male users who had low education level and a higher age were likely attracted by both a high degree of social interaction and high use of game-playing;(2) Facebook users were online more often, but for most there was no significant increase in the total number of hours online;(3) Facebook users who were motivated by both game play and social interaction do actually increase their online time using Facebook. The study indicated that Facebook facilitates increased use of information technology, and further recognizes that the gender of users accounts for significant differences in motivation. The findings of this study will lead to a better understanding of the motivation of Taiwan ICT users, specifically Taiwan Facebook users. © 2011 Springer-Verlag.

关键词： Motivation

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A Model of Mass Customization for Engineering Production System Development in Textile and Apparel Industries in Thailand

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Systems Engineering Procedia 2011年 2卷 382-397页

作者： Kornthip Watcharapanyawong Sompong Sirisoponsilp Peraphon Sophatsathit Technopreneurship and Innovation Management Program Graduate School Chulalongkorn University Bangkok 10330 Thailand Department of Civil Engineering Faculty of Engineering Chulalongkorn University Bangkok 10330 Thailand Department of Mathematics and Computer Science Faculty of Science Chulalongkorn University Bangkok 10330 Thailand

This paper presents a framework, aiming to develop the mass customization for textile and apparel industries in Thailand. The developed model as presented is the relationship of the connection pertaining to customers’ needs at industrial levels, most of which are Original Design Manufacturer (OEM), a type of textile and apparel business. The outstanding of OEM is the presentation of newly created designs to customers with a variety of products. Importantly, in order to gain such effective production management, an appropriate administrative system with high flexibility, efficient production (Small Lot Size), and punctual delivery is crucially required. In relation to the framework for mass customization development, it concerns three main related involvements: customers, OEM industries, and suppliers, all of which will be assessed so as to be promptly employed in such firms manufacturing products in accordance with the productive systems of mass customization *** conceptual from mass customization systems will facilitate the management in terms of the production designing in factories, aiming at clustering which is complex to the creation of platform from common parts, leading to the development of a variety of goods by the process of product family.

关键词： Mass Customization Clustering Common platform Product family

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Parsimonious reconstruction of network evolution

Parsimonious reconstruction of network evolution

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Lecture Notes in computer science

作者： Patro, Rob Sefer, Emre Malin, Justin Marçais, Guillaume Navlakha, Saket Kingsford, Carl Center for Bioinformatics and Computational Biology University of Maryland College Park MD 20742 United States Department of Computer Science University of Maryland College Park MD 20742 United States Computational Biology Bioinformatics and Genomics Concentration Biological Sciences Graduate Program University of Maryland College Park MD 20742 United States Program in Applied Mathematics Statistics and Scientific Computation University of Maryland College Park MD 20742 United States School of Computer Science Carnegie Mellon University Pittsburgh PA 15213 United States

ISBN: (纸本)9783642230370

We consider the problem of reconstructing a maximally parsimonious history of network evolution under models that support gene duplication and loss and independent interaction gain and loss. We introduce a combinatorial framework for encoding network histories, and we give a fast procedure that, given a set of duplication histories, in practice finds network histories with close to the minimum number of interaction gain or loss events. In contrast to previous studies, our method does not require knowing the relative ordering of unrelated duplication events. Results on simulated histories suggest that common ancestral networks can be accurately reconstructed using this parsimony approach. © 2011 Springer-Verlag.

关键词： Genes

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Optimization of defect hole placement in resonant cavities

Optimization of defect hole placement in resonant cavities

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作者： Kang, Christopher Weiss, Sharon M. Vlasov, Yurii A. Assefa, Solomon Interdisciplinary Graduate Program in Materials Science Vanderbilt University Nashville TN 37235 United States Department of Physics and Astronomy Vanderbilt University Nashville TN 37235 United States Department of Electrical Engineering and Computer Science Vanderbilt University 37235 United States IBM T.J. Watson Research Center Yorktown Heights NY 10536 United States

We demonstrate the resonance wavelength and quality factor dependence of 50nm defect-hole placement within photonic crystal L3 microcavities. Proper placement of defect-holes leads to a 12% increase in photonic crysta... 详细信息

ISBN: (纸本)9781557529107

关键词： Photonic crystals

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MLEA： A Solution for Users of Android in UTPVirtual

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computer Technology and Application 2011年第5期2卷 406-412页

作者： Gisela Torres de Clunie Sergio Crespo Coelho da Silva Pinto Aris Linet Castillo Lucas Monteiro Braz Tasia Serrao Norman Rangel Jeanette Riley Olinda de Barraza Kexy Rodriguez Computer Systems Engineering Department Technological University of Panama Panama 0819 Panama Computer Science Research and Graduate Program in Applied Computing University of the Sinos Valley （UNISINOS） RS 93022-000 Brazil CIDITIC Technological University of Panama Panama 0819 Panama

This paper describes a design of an educational platform for a mobile learning architecture, which is a state of the an topic in distance education. The product will allow users to interact in an efficient, flexible, and transparent fashion with a web-based education environment, in this case Module Object-Oriented Dynamic Learning Environment （Moodle）, using Android mobile devices. In order to provide a strong and lasting architecture, the Service Oriented Architecture （SOA） methodology is used given that it allows easy software re-utilization as well as integration of heterogeneous services. The architecture is based on web services implemented with Representational State Transfer （REST）, as it has been demonstrated to be lighter and less consuming than other protocols, for devices with limited resources such as mobile devices. Web services provide the communication means between the server side and the client side of the architecture, whereas agents are used to deliver the services itself. The authors propose the development of an environment that facilitates the integration of various educational resources to support m-learning. An important aspect of the proposal is the offering of a tool to provide customized alerts for students and teachers, enabling them to remain updated about activities taking place in the courses.

关键词： Distance learning virtual education m-learning service oriented architecture （SOA） mobile learning mobile computing interoperability representational state transfer （REST）.

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