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

作者： Franz Hamilton Alireza Akhavian Gretchen Knaack Hamid Charkhkar Saugandhika Minnikanti Woo-Ju Kim Jemika Kastee Nathalia Peixoto Electrical and Computer Engineering Department George Mason University Fairfax VA USA Department of Molecular Neuroscience George Mason University Fairfax VA USA National Institute of Standards and Technology Gaithersburg MD USA College of Arts and Sciences University of Pennsylvania Philadelphia PA USA Bioengineering Department George Mason University Fairfax VA USA George Mason University Fairfax VA US

Neurological disorders are often characterized by abnormal neuronal activity. In the case of epilepsy, this can manifest itself in the form of uncontrolled synchronous activity often in the form of bursting. Pattern steering is the ability to apply stimulation to a network that effectively changes its dynamical firing pattern. In an epileptic network, the stimulation would be used to move the seizing network from its abnormal state to a normal state. This idea is explored here in cultured networks of cortical neurons plated on microelectrode arrays. Stimulation was applied to the bath resulting in an electric field generated throughout the network. This field was verified as sub-threshold in strength using a finite element model simulation. Stimulated networks showed a significant suppression in the number of bursts and increase in the interburst interval as compared to control networks. This observed burst suppression suggests that the sub-threshold stimulating field moved networks from a state of high frequency bursting to a state of low frequency bursting.

关键词： Neurons In vitro Electrodes Educational institutions Biological neural networks Neuroscience media

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Attractor-Shape for Dynamical Analysis of Human Movement: Applications in Stroke Rehabilitation and Action Recognition

Attractor-Shape for Dynamical Analysis of Human Movement: Ap...

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IEEE computer Society Conference on computer Vision and Pattern Recognition Workshops (CVPRW)

作者： Vinay Venkataraman Pavan Turaga Nicole Lehrer Michael Baran Thanassis Rikakis Steven L. Wolf School of Electrical Computer and Energy Engineering School of Arts Media and Engineering Arizona State University USA School of Arts Media and Engineering Arizona State University USA School of Design Carnegie Mellon University USA

In this paper, we propose a novel shape-theoretic framework for dynamical analysis of human movement from 3D data. The key idea we propose is the use of global descriptors of the shape of the dynamical attractor as a feature for modeling actions. We apply this approach to the novel application scenario of estimation of movement quality from a single-marker for future usage in home-based stroke rehabilitation. Using a dataset collected from 15 stroke survivors performing repetitive task therapy, we demonstrate that the proposed method outperforms traditional methods, such as kinematic analysis and use of chaotic invariants, in estimation of movement quality. In addition, we demonstrate that the proposed framework is sufficiently general for the application of action and gesture recognition as well. Our experimental results reflect improved action recognition results on two publicly available 3D human activity databases.

关键词： Shape Three-dimensional displays Wrist Time series analysis Vectors Kinematics Quality assessment

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Connecting stakeholders through context logging 13

Connecting stakeholders through context logging

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15th International Conference on Human-computer Interaction with Mobile Devices and Services, MobileHCI 2013

作者： Vihavainen, Sami Karhu, Kimmo Botero, Andrea Helsinki Institute for Information Technology HIIT Aalto University Espoo Finland Department of Computer Science and Engineering School of Science Aalto University Espoo Finland Department of Media School of Arts Design and Architecture Aalto University Espoo Finland

ISBN: (纸本)9781450322737

Logging users' physical context through the sensors of mobile devices and the abilities to track users' online behavior has increasingly evolved. In this poster abstract we will present a work in progress in understanding how various stakeholders can be connected through context logging technologies, and the underlying motivations. We will (1) describe the general components and information flow of context logging systems, (2) frame the primary stakeholders from the context logging point of view, (3) discuss the application areas through the different stakeholders and their goals for applying context logging. Moreover, we will present ContextLogger3, a context-logging tool that combines automatically acquired sensor and mobile activity data and manually user created textual notes. We conclude by suggesting that designers should systematically consider implementing affordances for fostering design conversation between the users that log/are logged and the other stakeholders. We also suggest considering affordances that enable users to have manual control on context logging to narrow the gap between the realities represented by the automatic context logging and those perceived by the user. © 2013 Authors.

关键词： stakeholders context logging automation manual mobile

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Application of Nanotechnology in Anti-counterfeiting Packaging

Application of Nanotechnology in Anti-counterfeiting Packagi...

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2013 International Conference on Mechatronic Systems and Materials Application (ICMSMA 2013)

作者： Qian Zhao Kunqian Wang Weizhen Liao Kunming University of Science and Technology.Arts and Media college Kunming University of Science and Technology.Electrical Engineering College

The necessity of anti-counterfeiting packaging and the concept of nanometer anti-counterfeiting technology to explore the application of nanotechnology in the anti-counterfeiting packaging have been briefly described in this *** advantages and disadvantages of nanotechnology in anti-counterfeiting material,in anti-counterfeiting inks,in information encryption are compared by analyzing the principles,characteristic and typical *** the end,summarizing the superiority and the issues should be resolved in the application of nanotechnology in anti-counterfeiting packaging to show the prospects.

关键词： Nanotechnology Packaging Anti-counterfeiting material Anti-counterfeiting ink Information Encryption technology

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Penny: An extremely low-cost pressure-sensitive stylus for existing capacitive touchscreens 13th

Penny: An extremely low-cost pressure-sensitive stylus for e...

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13th International conference on New Interfaces for Musical Expression, NIME 2013

作者： Wang, Johnty D’alessandro, Nicolas Pon, Aura Fels, Sidney Media and Graphics Interdisciplinary Centre University of British Columbia VancouverBC Canada numediart Institute for New Media Art Technology University of Mons MonsB-7000 Belgium Interactions Lab Depts. of Music and Computer Science University of Calgary CalgaryAB Canada Electrical and Computer Engineering & MAGIC University of British Columbia VancouverBC Canada

By building a wired passive stylus we have added pressure sensitivity to existing capacitive touch screen devices for less than $10 in materials, about 1/10th the cost of existing solutions. The stylus makes use of the built-in audio interface that is available on most smartphones and tablets on the market today. Limitations of the device include the physical constraint of wires, the occupation of one audio input and output channel, and increased latency equal to the period of at least one audio buffer duration. The stylus has been demonstrated in two NIME applications thus far: a visual musical score drawing and a singing synthesis application. © 2013, Steering Committee of the International Conference on New Interfaces for Musical Expression. All rights reserved.

关键词： Touch screens

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A New Feature-Based Image Registration Algorithm

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computer technology and Application 2013年第2期4卷 79-84页

作者： Md. Baharul Islam Mir Md. Jahangir Kabir Department of Multimedia Technology and Creative Arts Faculty of Science and Information Technology Daffodil InternationalUniversity Dhaka 1207 Bangladesh Department of Computer Science and Engineering Faculty of Electrical and Computer Engineering Rajshahi University ofEngineering & Technology Rajshahi 6204 Bangladesh

IR （Image Registration） is one of the important operation of image processing system which is the process of aligning two or more images into one coordinate system that are taken at different times, from different sensors, or from different viewpoints. It has a lot of applications especially medical imaging and remote sensing. The main purpose of this paper is to provide a comprehensive review of existing literatures available on image registration system and proposed a new feature-based IR technique using edge of images. We used edges as a feature of images for registration. It will be a useful document for researchers who will work on feature-based image registration regardless for specific applications.

关键词： Feature detection image registration feature extraction transformation.

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Phonetically balanced and psychometrically equivalent monosyllabic word lists for word recognition testing in Thai

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Proceedings of Meetings on Acoustics 2015年第1期25卷

作者： Sajeerat Poonyaban Pasinee Aungsakulchai Charturong Tantibundhit Chutamanee Onsuwan Rattinan Tiravanitchakul Krit Kosawat Adirek Munthuli 1Center of Excellence in Intelligent Informatics Speech and Language Technology and Service Innovation (CILS) Thammasat University Thailand 2Department of Electrical and Computer Engineering Faculty of Engineering Thammasat University Rangsit Campus Khlong Luang Pathum Thani Thailand pond_poonyaban@*** meilyp.aung@*** tchartur@engr.tu.ac.th ***@student.tu.ac.th 3Department of English and Linguistics Faculty of Liberral Arts Thammasat University Rangsit Campus Khlong Luang Pathum Thani Thailand consuwan@tu.ac.th 4Department of Communication Science and Disorders Faculty of Medicine Mahidol University Thailand rartv@*** 5NECTEC National Science and Technology Development Agency (NSTDA) Pathum Thani Thailand krit.kosawat@nectec.or.th

Word recognition testing may be defined as a procedure to assess a listener’s ability to identify one-syllable words (such as phonetically-balanced/PB words) that are presented at a given suprathreshold level to arrive at a word recognition score. For Thai, Thammasat University and Ramathibodi Hospital Phonetically Balanced Word Lists 2015 (TU-RAMA PB’15) were created with five lists, each with 25 monosyllabic words. Besides its phoneme distributions being based on large-scale Thai spoken corpora, TU-RAMA PB’15 is in line with TU PB’14 with emphasis on phonetic balance, symmetrical phoneme occurrence, and word familiarity. To evaluate its homogeneity in terms of decibel intelligibility, the lists were recorded and presented to 10 normal hearing participants, ranging from 0 to 50 dB HL in 2 dB increments (ascending order) until they repeated correct verbal responses. Using logistic regression, regression slopes and intercepts were calculated to estimate percentage of correct performance at any given intensity and to construct psychometric functions for every list. Derived psychometric function slopes ranged from 0.2015 to 0.2262 while intensities required for 50% intelligibility ranged from 17.0876 to 20.8856. Two-way Chi-Square analysis performed on both parameters indicated that there was no significant difference among the five lists.

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Q&A

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Design Management Review 2015年第1期26卷

作者： John Maeda Joichi Ito John Maeda is an American designer and technologist as well as the catalyst behind the national movement to transform STEM (science technology engineering and math) into STEAM (by adding the arts). Maeda served as the sixteenth president of the Rhode Island School of Design. An internationally recognized thought leader at the intersection of design and technology Maeda now works with start‐up CEOs as design partner at Kleiner Perkins Caufield & Byers in Silicon Valley. While the web was being built in the 1990s Maeda led a research team at the MIT Media Lab to connect design with computer science. It was there that he fostered the first generation of engineers who could elegantly design and designers who could fluently code. His early work for print and the computer was accessioned into the permanent collection of the Museum of Modern Art. His books include The Laws of Simplicity Creative Code and Redesigning Leadership. Joichi “Joi” Ito has been recognized for his work as an activist entrepreneur venture capitalist and advocate of emergent democracy privacy and Internet freedom. As director of the MIT Media Lab he is currently exploring how radical new approaches to science and technology can transform society in substantial and positive ways.

John Maeda is following his stint as the sixteenth president of the Rhode Island School of Design with a new vocation—venture capitalist. As director of the MIT media Lab, Joi Ito sees the next big design breakthroug...

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An unsupervised aspect detection model for sentiment analysis of reviews

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18th International Conference on Application of Natural Language to Information Systems, NLDB 2013

作者： Bagheri, Ayoub Saraee, Mohamad De Jong, Franciska Intelligent Database Data Mining and Bioinformatics Lab Electrical and Computer Engineering Department Isfahan University of Technology Isfahan Iran School of Computing Science and Engineering University of Salford Manchester United Kingdom Human Media Interaction University of Twente P.O. Box 217 7500 AE Enschede Netherlands

ISBN: (纸本)9783642388231

With the rapid growth of user-generated content on the internet, sentiment analysis of online reviews has become a hot research topic recently, but due to variety and wide range of products and services, the supervised and domain-specific models are often not practical. As the number of reviews expands, it is essential to develop an efficient sentiment analysis model that is capable of extracting product aspects and determining the sentiments for aspects. In this paper, we propose an unsupervised model for detecting aspects in reviews. In this model, first a generalized method is proposed to learn multi-word aspects. Second, a set of heuristic rules is employed to take into account the influence of an opinion word on detecting the aspect. Third a new metric based on mutual information and aspect frequency is proposed to score aspects with a new bootstrapping iterative algorithm. The presented bootstrapping algorithm works with an unsupervised seed set. Finally two pruning methods based on the relations between aspects in reviews are presented to remove incorrect aspects. The proposed model does not require labeled training data and can be applicable to other languages or domains. We demonstrate the effectiveness of our model on a collection of product reviews dataset, where it outperforms other techniques. © 2013 Springer-Verlag Berlin Heidelberg.

关键词： Sentiment analysis

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Color coding for massive bicycle trajectories

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International Conference on IT Convergence and Security, ICITCS 2012

作者： Lee, Dongwook Kim, Jinsul Choi, Haewook Hahn, Minsoo Digital Media Lab. Korea Advanced Institute of Science and Technology 119 Munji-Dong Yuseong-Gu Daejeon Korea Republic of School of Electronics and Computer Engineering Chonnam National University Gwangju 550-757 Korea Republic of Department of Electrical Engineering Korea Advanced Institute of Science and Technology 119 Munji-Dong Yuseong-Gu Daejeon Korea Republic of

ISBN: (纸本)9789400758599

As the smartphone market grows, tracking a person's own positions become easier and popular. Especially for the bicycling, file based GPS data make it easier to manage and access personal trajectories. In this paper, we propose an effective color coding method for massive bicycle trajectories visualization. The motivation of the method is based on characteristics of the bicycle trajectories which have different spatial aspects compare to the automobiles. The proposed method modifies the color of the line segments based on the direction and flow, and provides visually enhanced trajectories. GPS data collected from Han riverside bicycle tracks were applied to the proposed visualization methods, and shown the potential possibilities for trajectory analysis. © 2013 Springer Science+Business media.

关键词： Visualization

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