Filters








354 Hits in 3.8 sec

Distributed Planning for Serving Cooperative Tasks with Time Windows: A Game Theoretic Approach [article]

Yasin Yazicioglu, Raghavendra Bhat, Derya Aksaray
2021 arXiv   pre-print
We then provide the performance guarantees for the cases where all the robots follow a best response or noisy best response algorithm to iteratively plan their trajectories.  ...  While the best response algorithm leads to a Nash equilibrium, the noisy best response algorithm leads to globally optimal joint plans with high probability.  ...  We are also interested in exploring the use of other distributed learning and optimization algorithms to solve the proposed planing problem.  ... 
arXiv:2107.08540v1 fatcat:bz7qtb56evat5mpzgw2rfegizy

Bangs, Clicks, Snaps, Thuds and Whacks: An Architecture for Acoustic Transient Processing

Fernando J. Pineda, Gert Cauwenberghs, R. Timothy Edwards
1996 Neural Information Processing Systems  
Simulations show that the resulting algorithm has the same out-of-sample classification performance (-93% correct) as a baseline template-matching algorithm.  ...  The algorithm uses binary multiplexing instead of analog-analog multiplication. This removes the need for analog storage and analog-multiplication.  ...  The work reported in this report was supported by a Whiting School of Engineering! Applied Physics Laboratory Collaborative Grant.  ... 
dblp:conf/nips/PinedaCE96 fatcat:asevn7d6e5g6nakuvwy2xmlkdi

Efficient functional built-in test for RF systems using two-tone response envelope analysis

Manuel J. Barragan, Diego Vazquez, Adoracion Rueda, Jose Luis Huertas
2009 AFRICON 2009  
It is based on the detection and spectral analysis of the two-tone response envelope of the block under test.  ...  The main non-linearity specifications of the block under test can be easily extracted from the envelope signal.  ...  From a hardware point of view, the proposed test core is reduced to a simple low-performance envelope detector, together with two first-order LLl modulators.  ... 
doi:10.1109/afrcon.2009.5308070 fatcat:kplyalyqjfeenkm2pdrg7l2qbq

Defining internal target volume using positron emission tomography for radiation therapy planning of moving lung tumors

Adam C. Riegel, M. Kara Bucci, Osama R. Mawlawi, Moiz Ahmad, Dershan Luo, Adam Chandler, Tinsu Pan
2014 Journal of Applied Clinical Medical Physics  
The purpose of this work was to apply the VMSBR model and six other segmentation algorithms to a sample of lung tumors.  ...  PET and 4D CT were performed in the same imaging session for 23 patients (24 tumors) for radiation therapy planning.  ...  Additionally, several assumptions were made in the development of the VMSBR model that should be explored further.  ... 
doi:10.1120/jacmp.v15i1.4600 pmid:24423860 pmcid:PMC5711243 fatcat:ammrckhacng3toxulcdk36mgzi

The Moser-Tardos Resample algorithm: Where is the limit? (an experimental inquiry)

Jan Dean Catarata, Scott Corbett, Harry Stern, Mario Szegedy, Tomas Vyskocil, Zheng Zhang
2017 2017 Proceedings of the Ninteenth Workshop on Algorithm Engineering and Experiments (ALENEX)  
The Moser-Tardos Resample algorithm does not only find such a solution in linear time, but its beautiful analysis has greatly enhanced LLL related research [9, 10].  ...  The celebrated Lovász Local Lemma (LLL) guarantees that locally sparse systems always have solutions.  ...  We thank Dimitris Achlioptas for interesting discussions, and Alistair Sinclair who has pointed us to the physics term "meta-stable equilibrium."  ... 
doi:10.1137/1.9781611974768.13 dblp:conf/alenex/CatarataCSSVZ17 fatcat:ye4hhrbagrghhgjwp77333otni

Recovering Exact Results from Inexact Numerical Data in Algebraic Geometry

Daniel J. Bates, Jonathan D. Hauenstein, Timothy M. McCoy, Chris Peterson, Andrew J. Sommese
2013 Experimental Mathematics  
A collection of examples and applications serve to illustrate the approach.  ...  Let Z denote the complex, projective, algebraic set determined by the homogeneous ideal Numerical continuation-based methods can be used to produce arbitrary precision numerical approximations of generic  ...  However, an exploration and comparison of these alternative algorithms goes beyond the scope of this paper, see [20] .  ... 
doi:10.1080/10586458.2013.737640 fatcat:sfo6ohcvtba3bfs2ecebxjp2pi

Beam-Intensity Limitations in Linear Accelerators

R. A. Jameson
1981 IEEE Transactions on Nuclear Science  
actual performance.  ...  The presence of envelope instabilities at croabove 90" was verified for accelerators.  ...  Integration of the coupledso envelope and equipartitioning equations, or of the LLL model may prove useful in exploring these cases, The current limits will be a moving target. " After you know what  ... 
doi:10.1109/tns.1981.4331708 fatcat:f6x7cpssyzgfxlxsh2ddeh7dpy

Increased cerebral functional connectivity in ALS

Malcolm Proudfoot, Giles L. Colclough, Andrew Quinn, Joanne Wuu, Kevin Talbot, Michael Benatar, Anna C. Nobre, Mark W. Woolrich, Martin R. Turner
2018 Neurology  
of the study when this algorithm was released).  ...  perform adequately.  ... 
doi:10.1212/wnl.0000000000005333 pmid:29661904 pmcid:PMC5902786 fatcat:eacxb6znxjbuzorobhfpnluzga

Combined precoding for multiuser Multiple-Input Multiple-Output satellite communications

M. Ángeles Simarro, Beatriz Puig, F.J. Martínez-Zaldívar, Alberto Gonzalez
2018 Computers & electrical engineering  
The new scheme is based on the matrix condition number of the satellite MIMO channel.  ...  A performance comparison between several precoders in terms of Bit Error Rate (BER) and complexity is given for different channel realizations.  ...  Recent research has explored the use of precoding techniques in single beam systems and in multi-beam systems [5] [6] .  ... 
doi:10.1016/j.compeleceng.2018.08.006 fatcat:5tp3kdxeq5h3tbugmg2dbwtwv4

Reduced-Complexity PAPR Minimization Schemes for MC-CDMA Systems [chapter]

Mariano Garcia, Luis A. Paredes Hernandez
2011 Vehicular Technologies: Increasing Connectivity  
Two approaches will be explored in the sequel: a. Reducing the dimension of the optimization variable a I . b. Using suboptimal iterative algorithms to approximately solve (11).  ...  It can be seen that the value of the peak is substantially reduced with respect to the original signal, and it is also evident from Fig. 3 that the ℓ ∞ norm minimization performed by algorithm (12)  ...  This book provides an insight on both the challenges and the technological solutions of several approaches, which allow connecting vehicles between each other and with the network.  ... 
doi:10.5772/14802 fatcat:davsmlulsjdznj2idzlr4szuqy

Overview of Precoding Techniques for Massive MIMO

Mahmoud A. Albreem, Alaa H. Al Habbash, Ammar M. Abu-Hudrouss, Salama S. Ikki
2021 IEEE Access  
of the peak-to-average power ratio precoding (PAPR) algorithms such as the constant envelope (CE) algorithm, approximate message passing (AMP), and quantized precoding (QP) algorithms.  ...  The added value of this paper is that the classification of massive MIMO precoding algorithms is provided with easily distinguishable classes of precoding solutions.  ...  Also, a complex LLL (CLLL) algorithm is employed in the LR algorithm to reduce the computational complexity of the LLL algorithm by approximately 50% without any effect in performance [200] .  ... 
doi:10.1109/access.2021.3073325 doaj:1d85efeb80d74e06921cfe2f3841e0ae fatcat:dpgcetdklrdvvcixqej2rcwbvy

A Minimum-Entropy Algorithm for Surface Phasing Problems

L. D. Marks, E. Landree
1998 Acta Crystallographica Section A Foundations of Crystallography  
Methods of determining the phases for noisy and incomplete surface diffraction data (X-ray or transmission electron) are investigated.  ...  It is found that, while conventional methods do not always work, a minimumentropy method that uses the relative entropy is more effective in finding the correct solutions.  ...  The authors would like to acknowledge the support of the National Science Foundation on grant No. DMR-9214505 in funding this work. We would also like to thank I. K.  ... 
doi:10.1107/s0108767397016917 fatcat:xxmtehootjdvpokt5j4egahuri

Dual Resonance Phonon-Photon-PhononTerahertz Quantum-Cascade Laser: Physics ofthe Electrons Transport and TemperaturePerformance Optimization

Aleksandar Demic, Zoran Ikonic, Paul Dean, Dragan Indjin
2020 Optics Express  
The state of the art terahertz-frequency quantum cascade lasers have opened a plethora of applications over the past two decades by testing several designs up to the very limit of operating temperature  ...  We present several designs which offer better performance than the current record structure.  ...  Numerical part of this work was undertaken on ARC4, part of the High Performance Computing facilities at the University of Leeds.  ... 
doi:10.1364/oe.410014 pmid:33379440 fatcat:hp56djmzdfcw7jrt5ztpil23ye

ExtraPeak: Advanced Automatic Performance Modeling for HPC Applications [chapter]

Alexandru Calotoiu, Marcin Copik, Torsten Hoefler, Marcus Ritter, Sergei Shudler, Felix Wolf
2020 Lecture Notes in Computational Science and Engineering  
This article summarizes the results of the two projects Catwalk, which aimed to create tools that automate key activities of the performance modeling process, and ExtraPeak, which built upon the results  ...  Performance models are powerful tools allowing developers to understand the behavior of their applications, and empower them to address performance issues already during the design or prototyping phase  ...  Fig. 2 Interactive exploration of performance models.  ... 
doi:10.1007/978-3-030-47956-5_15 fatcat:d7ogrnpaargzzbpee43bgoq2ya

Short Generators Without Quantum Computers: The Case of Multiquadratics [chapter]

Jens Bauch, Daniel J. Bernstein, Henry de Valence, Tanja Lange, Christine van Vredendaal
2017 Lecture Notes in Computer Science  
Finding a short element g of a number field, given the ideal generated by g, is a classic problem in computational algebraic number theory.  ...  Work over the last few years has shown that for some number fields this problem has a surprisingly low post-quantum security level.  ...  LLL has comparable performance to our algorithm (see also [34, 46, 23, 3] ).  ... 
doi:10.1007/978-3-319-56620-7_2 fatcat:rojiem7yi5hzdf5xbavpmnst5q
« Previous Showing results 1 — 15 out of 354 results