Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing最新文献_第3页

Optimal Window and Lattice in Gabor Transform. Application to Audio Analysis. Gabor变换中的最优窗口和格。应用于音频分析。

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2015-01-01 DOI: 10.1109/SYNASC.2015.25

Helene Lachambre, Benjamin Ricaud, Guillaume Stempfel, Bruno Torrésani, Christoph Wiesmeyr, Darian Onchis-Moaca

引用次数: 0

Model-Driven Decision Procedures for Arithmetic 模型驱动的算法决策过程

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2013-09-23 DOI: 10.1109/SYNASC.2013.84

L. D. Moura, Dejan Jovanovic

{"title":"Model-Driven Decision Procedures for Arithmetic","authors":"L. D. Moura, Dejan Jovanovic","doi":"10.1109/SYNASC.2013.84","DOIUrl":"https://doi.org/10.1109/SYNASC.2013.84","url":null,"abstract":"Summary form only given, as follows. Considering the theoretical hardness of SAT, the astonishing adeptness of SAT solvers when attacking practical problems has changed the way we perceive the limits of algorithmic reasoning. Modern SAT solvers are based on the idea of conflict driven clause learning (CDCL). The CDCL algorithm is a combination of an explicit backtracking search for a satisfying assignment complemented with a deduction system based on Boolean resolution. In this combination, the worst-case complexity of both components is circumvented by the components guiding and focusing each other. In this talk, we describe new procedures for nonlinear real arithmetic and linear integer arithmetic based on the CDCL algorithm. These procedures perform a backtracking search for a model, where the backtracking is powered by a novel conflict resolution procedure. Our approach takes advantage of the fact that each conflict encountered during the search is based on the current assignment and generally involves only a few constraints, a conflicting core. When in conflict, we project only the constraints from the conflicting core and explain the conflict in terms of the current model. The conflict resolution provides the usual benefits of a CDCL-style search engine, such as non-chronological backtracking and the ability to ignore irrelevant parts of the search space. The procedures described in the talk are instances of the model-constructing satisfiability calculus proposed by the authors.","PeriodicalId":91954,"journal":{"name":"Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing","volume":"35 1","pages":"11"},"PeriodicalIF":0.0,"publicationDate":"2013-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77758079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A New Digital Repository for Remotely Sensed Hyperspectral Imagery on GPUs 基于gpu的遥感高光谱图像数字资源库

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2013-09-23 DOI: 10.1109/SYNASC.2013.68

J. S. Cedillo, A. Plaza

{"title":"A New Digital Repository for Remotely Sensed Hyperspectral Imagery on GPUs","authors":"J. S. Cedillo, A. Plaza","doi":"10.1109/SYNASC.2013.68","DOIUrl":"https://doi.org/10.1109/SYNASC.2013.68","url":null,"abstract":"Hyperspectral imaging is a new technique in remote sensing in which an imaging spectrometer collects hundred of images (at different wavelength channels) for the same area on the surface of Earth. Over the last years, hyperspectral image data sets have been collected from a great amount of locations over the world using a variety of instruments for Earth observation. Only a small amount of them are available for public use and they are spread among different storage locations and exhibit significant heterogeneity regarding the storage format. Therefore, the development of a standardized hyperspectral data repository is a highly desired goal in the remote sensing community. In this paper, we describe the development of a shared digital repository for remotely sensed hyperspectral data, which allows uploading new hyperspectral data sets along with meta-data, ground-truth and analysis results (spectral information). Such repository is presented as a web service for providing the management of images through a web interface, and it is available online from http://www.hypercomp.es/repository. Most importantly, the developed system includes a spectral unmixing-based content based image retrieval (CBIR) functionality which allows searching for images from the database using spectrally pure components or endmembers in the scene. A full spectral unmixing chain is implemented for spectral information extraction, which allows filtering images using the similarity of the spectral signature and abundance of a given ground-truth. In order to accelerate the process of obtaining the spectral information for new entries in the system, we resort to an efficient implementations of spectral unmixing algorithms of graphics processing units (GPUs).","PeriodicalId":91954,"journal":{"name":"Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing","volume":"6 1","pages":"473-480"},"PeriodicalIF":0.0,"publicationDate":"2013-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76444527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Method for Submodelling Inside Transient Flows 一种瞬态流动内部子模拟方法

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2011-01-01 DOI: 10.1109/SYNASC.2011.48

Anton Alin-Adrian

引用次数: 0

A Numerical Solution of the Semi Linear Singularly Perturbed Boundary Value Problem Using Multi Region Finite Difference Method 半线性奇摄动边值问题的多区域有限差分法数值解

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2009-09-26 DOI: 10.1109/SYNASC.2009.35

D. Edwards

引用次数: 0

A Modeling Framework for Generating Security Protocol Specifications 生成安全协议规范的建模框架

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2009-08-21 DOI: 10.1109/SYNASC.2008.21

B. Genge, P. Haller

引用次数: 2

Finding the Solutions of Nonlinear Equation Systems from an Interval 从区间求非线性方程组的解

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2009-01-01 DOI: 10.1109/SYNASC.2009.60

Cristian Cira

引用次数: 0

The Design of Neural Network Direct Inverse Controller Based on Complex Particle Swarm Optimization Algorithm 基于复杂粒子群优化算法的神经网络直接逆控制器设计

Proceedings. International Symposium on Symbolic and Numeric Algorithms for Scientific Computing Pub Date : 2006-01-01 DOI: 10.1109/SYNASC.2006.72

Yuan-bin Mo, Heng Liu

引用次数: 1