Filters








58,521 Hits in 9.9 sec

Optimizing the Four-Index Integral Transform Using Data Movement Lower Bounds Analysis

Samyam Rajbhandari, Fabrice Rastello, Karol Kowalski, Sriram Krishnamoorthy, P. Sadayappan
2017 SIGPLAN notices  
We develop a novel approach to address this problem, using lower bounds modeling of data movement complexity.  ...  for the four-index integral transform.  ...  Acknowledgment We thank the reviewers of the paper for their valuable feedback and recommendations.  ... 
doi:10.1145/3155284.3018771 fatcat:4hlj5kah5jhdhj2bjwlns6vdqu

Optimizing the Four-Index Integral Transform Using Data Movement Lower Bounds Analysis

Samyam Rajbhandari, Fabrice Rastello, Karol Kowalski, Sriram Krishnamoorthy, P. Sadayappan
2017 Proceedings of the 22nd ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming - PPoPP '17  
We develop a novel approach to address this problem, using lower bounds modeling of data movement complexity.  ...  for the four-index integral transform.  ...  Acknowledgment We thank the reviewers of the paper for their valuable feedback and recommendations.  ... 
doi:10.1145/3018743.3018771 fatcat:m6sn57jhgvdthmbmzxdyxq3bbe

Rate Bounds on SSIM Index of Quantized Images

S.S. Channappayya, A.C. Bovik, R.W. Heath
2008 IEEE Transactions on Image Processing  
The transform domain SSIM index is then used to derive bounds on the average SSIM index as a function of quantization rate for uniform, Gaussian, and Laplacian sources.  ...  In this paper, we derive bounds on the structural similarity (SSIM) index as a function of quantization rate for fixed-rate uniform quantization of image discrete cosine transform (DCT) coefficients under  ...  ACKNOWLEDGMENT The authors would like to thank Prof. C. Caramanis for useful discussions on the probabilistic bounds.  ... 
doi:10.1109/tip.2008.2001400 pmid:18701399 fatcat:kbkam7uykbe67fgzy2mye5n3ua

Domain-Specific Multi-Level IR Rewriting for GPU [article]

Tobias Gysi, Christoph Müller, Oleksandr Zinenko, Stephan Herhut, Eddie Davis, Tobias Wicky, Oliver Fuhrer, Torsten Hoefler, Tobias Grosser
2020 arXiv   pre-print
In contrast, multi-level rewriting instantiates a hierarchy of dialects (IRs), lowers programs level-by-level, and performs code transformations at the most suitable level.  ...  As a result, optimizations relying on domain-specific information are either not possible or require complex analysis to recover the missing information.  ...  We appreciate the assistance of Carlos Osuna and the Me-teoSwiss compiler team throughout the project.  ... 
arXiv:2005.13014v2 fatcat:3kjj5bdukbemte6yf4zgeq7spq

The integration of motion and disparity cues to depth in dorsal visual cortex

Hiroshi Ban, Tim J Preston, Alan Meeson, Andrew E Welchman
2012 Nature Neuroscience  
Although fusion is computationally attractive, it poses a substantial challenge, requiring the integration of quantitatively different signals.  ...  Behavioral tests show humans combine cues near-optimally, a feat that could depend on discriminating the outputs from cue-specific mechanisms or on fusing signals into a common representation.  ...  The work was supported by fellowships to A.E.W. from the Wellcome Trust (095183/Z/10/Z) and Biotechnology and Biological Sciences Research Council (C520620) and to H.B. from the Japan Society for the Promotion  ... 
doi:10.1038/nn.3046 pmid:22327475 pmcid:PMC3378632 fatcat:6ltrvyymrzfffjibbbhy3las3q

A Hybrid Least Square Support Vector Machine Model with Parameters Optimization for Stock Forecasting

Jian Chai, Jiangze Du, Kin Keung Lai, Yan Pui Lee
2015 Mathematical Problems in Engineering  
Since parameters selection is vital to the performance of the model, different optimization methods are used, including simplex, GS (grid search), PSO (particle swarm optimization), and GA (genetic algorithm  ...  This paper proposes an EMD-LSSVM (empirical mode decomposition least squares support vector machine) model to analyze the CSI 300 index.  ...  Conflict of Interests The authors declare that there is no conflict of interests regarding the publication of this paper.  ... 
doi:10.1155/2015/231394 fatcat:o6kgkiimnrfcljp2hy2p4hudm4

Decoding Brain States Based on Magnetoencephalography From Prespecified Cortical Regions

Jinyin Zhang, Xin Li, Stephen T. Foldes, Wei Wang, Jennifer L. Collinger, Douglas J. Weber, Anto Bagic
2016 IEEE Transactions on Biomedical Engineering  
RDA integrates linear classification and beamspace transformation into a unified framework by formulating a constrained optimization problem.  ...  Index Terms-Decoding, discriminant analysis, magnetoencephalography (MEG), regions of interest (ROI).  ...  In this case, the exact value of p Φ /pΦ is unknown but its lower bound is set by ϕ K (i.e., the Kth largest eigenvalue). As K increases, the lower bound of p Φ /pΦ decreases.  ... 
doi:10.1109/tbme.2015.2439216 pmid:26699648 fatcat:ksjfgxb5z5fijcijpytsrayxbi

Indexing of network constrained moving objects

Dieter Pfoser, Christian S. Jensen
2003 Proceedings of the eleventh ACM international symposium on Advances in geographic information systems - GIS 2003  
The advantages of considering such lowerdimensional trajectories are the reduced overall size of the data and the lower-dimensional indexing challenge.  ...  Briefly, the idea is to reduce movements to occur in one spatial dimension. As a consequence, the movement data becomes two-dimensional (x,t).  ...  Acknowledgements The authors would like to thank Thomas Brinkhoff for providing his network-based data generator as well as for being ever-present with his help and support.  ... 
doi:10.1145/956676.956680 dblp:conf/gis/PfoserJ03 fatcat:q74zyvcwpbarljqgdparubslui

Table of Contents

2020 2020 IEEE 12th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM)  
E-Textile Belt for with Four Quadrant Control Implementation of a Strategic Project Integration Management System using Visual Studio: A Case Study for a Construction Company in the Philippines Pre-detection  ...  Institutions: The Use of Design Thinking Curriculum in the Education Landscape Predicting the Mortality of Female Patients suffering from Myocardial Infarction using Data Mining Methods: A Comparison  ... 
doi:10.1109/hnicem51456.2020.9400112 fatcat:quxcxcadtzghld27bxzhs6vr5m

Toward Avoiding Misalignment: Dimensional Synthesis of Task-Oriented Upper-Limb Hybrid Exoskeleton

Sakshi Gupta, Anupam Agrawal, Ekta Singla
2022 Robotics  
A double four-bar planar configuration is used for this purpose.  ...  The findings and discussion indicate the usefulness of the proposed concept for upper-limb rehabilitation.  ...  Acknowledgments: The authors sincerely acknowledge the grant from Department of Science and Technology (DST) and Global Innovation and Technology Alliance (GITA) for financial support of this work via  ... 
doi:10.3390/robotics11040074 fatcat:tk57pl3wwbdfndtd7stb3fqqii

Addressing the big-earth-data variety challenge with the hierarchical triangular mesh

Michael L. Rilee, Kwo-Sen Kuo, Thomas Clune, Amidu Oloso, Paul G. Brown, Hongfeng Yu
2016 2016 IEEE International Conference on Big Data (Big Data)  
Grid, Swath, and Point, used by current ES data products, data preparation time for integrative analysis of diverse datasets can be drastically reduced and better variety scaling can be achieved.  ...  The more important challenge in achieving optimal value with a Big Data solution for Earth Science (ES) data analysis, however, is being able to achieve good scalability with variety.  ...  provides the means to transform the data from one grid to another.  ... 
doi:10.1109/bigdata.2016.7840700 dblp:conf/bigdataconf/RileeKCOBY16 fatcat:7tdpg4y4xbe23jxgw65ldjegqu

Analysing tourism movements along the Danube river based on geotagged Flickr photography

Mátyás Gede, Bálint Kádár
2019 Proceedings of the ICA  
</p><p>This paper discusses the method of data aggregation as well as the tools used and created for visualising and analysing the data.</p>  ...  The network analysis of the graph revealed the central integrating effect of the large capital cities on the entire system.  ...  The bounding boxes of these polygons were still not optimal for starting the bulk download process, as they had plenty of overlaps.  ... 
doi:10.5194/ica-proc-2-37-2019 fatcat:p6kjzlj7dngydo6shnkxzfy7pu

Compiler-Directed Transformation for Higher-Order Stencils

Protonu Basu, Mary Hall, Samuel Williams, Brian Van Straalen, Leonid Oliker, Phillip Colella
2015 2015 IEEE International Parallel and Distributed Processing Symposium  
We study the benefit of this optimization in the context of Geometric Multigrid (GMG), a widely used method to solve PDEs, using four different Jacobi smoothers built from 7-, 13-, 27and 125-point stencils  ...  Finally, we demonstrate that high-order multigrid solvers have the potential of reducing total data movement and energy by several orders of magnitude.  ...  The Roofline Model uses bound and bottleneck analysis to represent architecture performance as a function of requisite data movement and computation.  ... 
doi:10.1109/ipdps.2015.103 dblp:conf/ipps/BasuHWSOC15 fatcat:kbf5wx23mjdrhobuk3fzsokwjq

Evaluating end-to-end optimization for data analytics applications in weld

Shoumik Palkar, Saman Amarasinghe, Samuel Madden, Matei Zaharia, James Thomas, Deepak Narayanan, Pratiksha Thaker, Rahul Palamuttam, Parimajan Negi, Anil Shanbhag, Malte Schwarzkopf, Holger Pirk
2018 Proceedings of the VLDB Endowment  
We also evaluate which optimizations have the largest impact in practice and whether Weld can be integrated into libraries incrementally.  ...  In this work, we further develop the Weld vision by designing an automatic adaptive optimizer for Weld applications, and evaluating its impact on realistic data science workloads.  ...  ACKNOWLEDGEMENTS We thank the members of the Stanford DAWN lab for their invaluable feedback on this work.  ... 
doi:10.14778/3213880.3213890 fatcat:oesslpgfy5awlb32xnylmjlnoa

Examining the Impacts of Human Capital Flight on Economic Growth: A Case Study of Pakistan

Muhammad Zeeshan Younas, Ghazala Ahmad
2020 Review of Knowledge Economy  
Acknowledgement: Both authors contributed equally to the conception and design of the study.  ...  To empirically explore the connections of these international movements, we retrieved data Graphical Analysis, and 2) Econometrical analysis.  ...  There are four variables used in the first model which includes poverty level, real Gross Domestic Product, personal remittances and Gini index.  ... 
doi:10.18488/journal.67.2020.71.1.30 fatcat:f6ifl65zrjdc7ea55367advhw4
« Previous Showing results 1 — 15 out of 58,521 results