Now showing items 225-244 of 911

    • Early Detection of Cybersecurity Threats Using Collaborative Cognition 

      Narayanan, Sandeep Nair; Ganesan, Ashwinkumar; Joshi, Karuna; Oates, Tim; Joshi, Anupam; Finin, Tim (IEEE, 2018-11-19)
      The early detection of cybersecurity events such as attacks is challenging given the constantly evolving threat landscape. Even with advanced monitoring, sophisticated attackers can spend more than 100 days in a system ...
    • Early Termination of Conjugate Gradients for Corotated Finite Elements 

      Dahl, Alex; Bargteil, Adam (Association for Computing Machinery, 2019-10-28)
      Since the introduction of the conjugate gradient method to computer graphics, researchers have largely treated it as a black box. In particular, an arbitrary small value is chosen for the tolerance and the method is run ...
    • Ebiquity: Paraphrase and Semantic Similarity in Twitter using Skipgram 

      Satyapanich, Taneeya W.; Gao, Hang W.; Finin, Tim (Association for Computational Linguistics, 2015-06-04)
      We describe the system we developed to participate in SemEval 2015 Task 1, Paraphrase and Semantic Similarity in Twitter. We create similarity vectors from two-skip trigrams of preprocessed tweets and measure their semantic ...
    • Effect of additives: organic-metal oxide nanocomposites for γ-ray sensors 

      Singh, N. B.; Su, Ching Hua; Arnold, Bradley; Choa, Fow-Sen; Cooper, Christopher; Sova, Stacey; Gill, Puneet; Dayal, Vishall; Kelly, Lisa; Prasad, Narasimha; Smith, Paul; Cullum, Brian (SPIE, 2018-05-23)
      The transition metal oxide embodied organic composites have great promise for high energy radiation detection. The interaction of high energy radiation such as γ-rays with the organic composite can generate photoelectric ...
    • Effect of additives: γ-Ray sensors based on ionizing organic nanocomposites 

      Dayal, Vishall; Cooper, Christopher; Sova, Stacey; Gill, Puneet; Su, Ching-Hua; Arnold, Bradley; Choa, Fow-Sen; Kelly, Lisa; Cullum, Brian; Smith, Paul; Singh, N. B.
      We have developed ionizing organic based composites which have demonstrated great promise for radiation sensing. Nickel oxide has been proven as an active material for detecting high energy radiation. The oxidation state ...
    • Effect of coil size on transcranial magnetic stimulation (TMS) focality 

      Bagherzadeh, Hedyeh; Choa, Fow-sen (SPIE, 2019-05-02)
      In recent years, there is an increasing interest in noninvasive treatments for neurological disorders like Alzheimer and Depression. Transcranial magnetic stimulation (TMS) is one of the most effective methods used for ...
    • The Effect of Computerized Resident Sign-Out on Clarity 

      Grasso, Michael A.
      We present a before-and-after study to measure the effectiveness of a computerized system for resident sign-out in an Internal Medicine residency program.
    • Effect of Doping on the Electrical Characteristics of ZnSe 

      Singh, Narsingh Bahadur; Su, Ching-Hua; Choa, Fow-Sen; Arnold, Bradley; Gill, Puneet; Su, Charmain; Emge, Ian; Sood, Rachit (MDPI, 2020-06-27)
      The effect of sulfur, iron, and chromium doping on the electrical characteristics of ZnSe single crystals was studied. The crystals, grown by the physical vapor transport method (PVT) at NASA Marshall Space Flight Center, ...
    • Effect of impurities on the morphology on electrical properties of multifunctional TAS Crystals: Tl₃AsSe₃ 

      Nagaradona, Teja; Su, Ching-Hua; DeVilbiss, Michael; Arnold, Brad; Choa, Fow-Sen; Kelly, Lisa; Singh, N. B.
    • Effect of organic flux on the colossal dielectric constant of CaCu3Ti4O12 (CCTO) 

      Razdan, Vishnu; Singh, Abhishek; Arnold, Brad; Choa, Fow-Sen; Kelly, Lisa; Singh, N. B. (SPIE, 2015-05-18)
      We have used low temperature organics to achieve orientation of the grains of Ca₂/₃Cu₃Ti₄O₁₂ (CCTO) compound to increase the resistivity. During the past fifteen years CCTO has been studied extensively for its performance ...
    • The Effect of Perceptual Structure on Multimodal Speech Recognition Interfaces 

      Grasso, Michael A.; Ebert, David; Finin, Tim (1998-01-01)
      A framework of complementary behavior has been proposed which maintains that direct manipulation and speech interfaces have reciprocal strengths and weaknesses. This suggests that user interface performance and acceptance ...
    • Effect of processing on morphology of hydroxyapatites: bioactive glasses and crystalline composites 

      McAdams, Joel; Bowman, Eric; Cullum, Brian; Arnold, Bradley; Kelly, Lisa; Choa, Fow Sen; Singh, N. B.; Su, Ching Hua; Mandal, K. D.; Singh, Shruti (SPIE, 2019-05-02)
      Recent studies on multinary oxides for applications as laser hosts and high dielectric capacitors have shown that processing at high temperature provides glassy or crystalline materials based on thermal treatments and ...
    • An Efficient Method for Probabilistic Knowledge Integration 

      Zhang, Shenyong; Peng, Yun; Wang, Xiaopu (IEEE, 2008-11-03)
      This paper presents an efficient method, SMOOTH, for modifying a joint probability distribution to satisfy a set of inconsistent constraints. It extends the well-known “iterative proportional fitting procedure” (IPFP), ...
    • Efficient nonlinear infrared parametric generation in one-dimensional photonic band gap structures 

      Centini, M.; Scalora, M.; D’Aguanno, G.; Sibilia, C.; Bertolotti, M.; Bloemer, M. J.; Bowden, C.M.; Haus, J.W. (Elsevier, 2001-03-05)
      Using numerical methods and the effective index approach that we recently discussed in a separate publication, we show that it is possible to obtain highly efficient, phase matched nonlinear generation of infrared (3 μm) ...
    • Efficiently modeling the noise performance of short-pulse lasers with a computational implementation of dynamical methods 

      Wang, Shaokang; Carruthers, Thomas F.; Menyuk, Curtis R. (OSA Publishing, 2018-05-27)
      Lowering the output noise of short-pulse lasers has been a long-standing effort for decades. Modeling the noise performance plays a crucial role in isolating the noise sources and reducing them. Modeling to date has either ...
    • Efficient Distributed Admission and Revocation using Blockchain for Cooperative ITS 

      Lasla, Noureddine; Younis, Mohamed; Znaidi, Wassim; Arbia, Dhafer Ben (IEEE, 2018)
      Cooperative Intelligent Transportation System (C-ITS) enables inter-networking of vehicles for alerts exchanging in order to improve road safety. While this technology is about to enter the market in the upcoming years, ...
    • Electromagnetic density of modes for a finite-size structure 

      D'Aguanno, G.; Mattiucci, N.; Scalora, M.; Bloemer, M.J.; Zheltikov, A.M. (IEEE, 2005-05-02)
      We give a simple and physically pleasing definition of the electromagnetic density of modes for finite-size structures filled with a generic dielectric material. The role of absorption and dispersion of the material is ...
    • Electromagnetic density of modes for a finite-size three-dimensional structure 

      D’Aguanno, Giuseppe; Mattiucci, Nadia; Centini, Marco; Scalora, Michael; Bloemer, Mark J. (American Physical Society, 2004-05-24)
      The concept of the density of modes has been lacking a precise mathematical definition for a finite-size structure. With the explosive growth in the fabrication of photonic crystals and nanostructures, which are inherently ...
    • Enabling Peer-to-Peer Resource Discovery in Agent Environment 

      Srinivasan, Naveen; Finin, Tim (2002-07-07)
      Negotiation, co-operation and collaboration between muti-agents systems is the key to success in the agent world. An agent that is capable of these actions can offer them as services. the main challenge lies in discovering ...
    • Enabling Semantic Ecoblogging and Bioblitzes 

      Parr, Cynthia; Wang, Taowei; Sachs, Joel; Han, Lushan; Finin, Timothy (University of Maryland, College Park, 2008-05-30)
      People currently create Eco-blogs: stories about wildlife they have seen or observations they've made. Similarly, citizen and scientists work together on Bioblitzes to comprehensively report as many species as possible ...