检索结果-内蒙古大学图书馆

2017 IEEE 2nd Information Technology, Networking, Electronic and Automation Control Conference (ITNEC 2017)

作者： Dongchen Jiang Miao Zhou School of Information Science & Technology Beijing Forestry University

ISBN: (纸本)9781509064151;9781509064144

Focusing on the impact different ways of formalization have on the according verifications of sorting algorithm,this paper presents the formal specifications of insertion sort,and verifies its functional correctness using Isabelle/HOL. For the formalization, the value-based method and the index-based method are compared, which turns out that the index-based method is more suitable for verification in various aspects.

关键词： algorithm verification insertion sort algorithm specification verification complexity

来源：评论

学校读者我要写书评

暂无评论

Exploration and Image Display of Fertilizer Input Based on Grey Prediction algorithm and Decision Tree Classification 24

Exploration and Image Display of Fertilizer Input Based on G...

引用

4th International Conference on Artificial Intelligence, Automation and High Performance Computing, AIAHPC 2024

作者： Liu, Lidong Luo, Yongbin Zhang, Rong Chen, Zilin Feng, Jinghui Department of Computer Science Guangdong University of Science and Technology China

ISBN: (纸本)9798400710049

Prediction algorithms and classification algorithms, as important algorithms in the field of computer science, can automatically extract patterns and patterns from data to predict future events or classify unknown data, thereby improving decision-making efficiency and accuracy. This article uses the grey prediction algorithm to predict and analyze the nutrient input of agricultural fertilizers in Guangdong Province over the past 40 years, in order to determine the future use of organic fertilizers and chemical fertilizers in nitrogen, phosphorus, and potassium fertilization. To ensure the accuracy of the algorithm prediction, residual and relative error algorithm tests are conducted to determine the practicality of the algorithm. At the same time, using decision tree classification algorithm, analyze the correlation between organic fertilizer, chemical fertilizer, time, and simulate the decision classification process. The research results of this article can provide valuable references for decision-makers in the use of different fertilizers in the agricultural cultivation process. In order to facilitate rapid analysis of complex data for decision-makers, all results in this article are presented through computer-generated graphical illustrations. © 2024 Copyright held by the owner/author(s).

关键词： algorithm verification decision classification decision tree classification algorithm graphical display Grey prediction algorithm

来源：评论

学校读者我要写书评

暂无评论

Automatic Refinement to Efficient Data Structures: A Comparison of Two Approaches

引用

JOURNAL OF AUTOMATED REASONING 2019年第1期63卷 53-94页

作者： Lammich, Peter Lochbihler, Andreas Tech Univ Munich Inst Informat Boltzmannstr 3 D-85748 Garching Germany Swiss Fed Inst Technol Dept Informat Inst Informat Secur Univ Str 6 CH-8092 Zurich Switzerland

We consider the problem of formally verifying an algorithm in a proof assistant and generating efficient code. Reasoning about correctness is best done at an abstract level, but efficiency of the generated code often requires complicated data structures. Data refinement has been successfully used to reconcile these conflicting requirements, but usability calls for automatic tool support. In the context of Isabelle/HOL, two frameworks for automating data refinement have been proposed (Lammich, in: Blazy, Paulin-Mohring, Pichardie (eds) ITP 2013, LNCS, vol 7998, Springer, Heidelberg, pp 84-99, 2013;Lochbihler, in: Blazy, Paulin-Mohring, Pichardie (eds) ITP 2013, LNCS, vol 7998, Springer, Heidelberg, pp 116-132, 2013). In this paper, we present and compare the two frameworks and their underlying ideas in depth. Thereby, we identify the challenges of automating data refinement, highlight the similarities and differences of the two approaches, and show their strengths and limitations both from the implementer's and the user's perspectives. A case study demonstrates how to combine both frameworks, benefiting from the strengths of each.

关键词： Data refinement algorithm verification Code generation

来源：评论

学校读者我要写书评

暂无评论

A Preliminary Application of SystemVue on Weather Radar Simulation

A Preliminary Application of SystemVue on Weather Radar Simu...

引用

2019 International Conference on Informatics, Control and Robotics 2019信息学、控制和机器人学国际会议(ICICR2019)

作者： Qian-yu-chen WANG Jian-xin HE Xu WANG College of atmospheric sounding Chengdu University of Information Technology

This paper first briefly introduces the simulation environment of SystemVue, and introduces the creation process of weather radar component using the PPP algorithm in weather radar signal processing as an example. Next, a test platform for PPP component was built on SystemVue, and the performance of the component was tested using simulated radar echo signals. The results show that the SystemVue platform can help to verify the weather radar signal processing algorithm, and that the software radar can be built through SystemVue to implement the simulation and new algorithm verification of different weather radar systems.

关键词： SystemVue Weather radar algorithm verification PPP

来源：评论

学校读者我要写书评

暂无评论

verification of a simple band ratio algorithm for retrieving Great Lakes open water surface chlorophyll concentrations from satellite observations

引用

JOURNAL OF GREAT LAKES RESEARCH 2016年第2期42卷 448-454页

作者： Lesht, Barry M. Barbiero, Richard P. Warren, Glenn J. CSC Govt Solut LLC 845 W Taylor St Chicago IL 60607 USA Univ Illinois Dept Earth & Environm Sci 845 W Taylor St Chicago IL 60607 USA CSC Govt Solut LLC 1359 W Elmdale Ave Suite 2 Chicago IL 60660 USA Loyola Univ Chicago 1359 W Elmdale Ave Suite 2 Chicago IL 60660 USA USEPA Great Lakes Natl Program Off 77 W Jackson Blvd Chicago IL 60604 USA

We compared in situ surface chlorophyll concentration values measured between 2012 and 2015 as part of the U.S. Environmental Protection Agency's Great Lakes National Program Office (GLNPO) annual monitoring program with corresponding concentration estimates obtained by applying our previously published (Lesht et al., 2013) Great Lakes Fit (GLF) band ratio algorithm to data from the Moderate-resolution Imaging Spectroradiometer (MODIS) sensor. Coefficients used in the original GLF algorithm were derived from similarly matched GLNPO and satellite observations collected between 2002 and 2011. The Model II linear relationship between the original GLF-predicted log-transformed values and the new set (2012-2015) of field observations yielded intercept = 0.036, slope = 1.063, and r(2) = 0.830. Residuals for modeled chlorophyll concentrations below similar to 8.0 mg m(-3) were unbiased and normally distributed, but positively biased at higher modeled concentrations. When applied to the entire dataset (2002-2015), the linear relationship between the GLF-modeled and the observed values had intercept = 0.000, slope = 0.999, and r(2) = 0.820. New model coefficients derived from the entire (2002-2015) dataset were very similar to those obtained from the 2002-2011 data. Continual testing and assessment of any empirical model are desirable especially when the model is designed to be employed by a broad community. We conclude that this comparison of the GLF algorithm with the additional four years of independent data further validates its use for estimating surface chlorophyll concentrations from satellite observations of the open waters of the Great Lakes. (C) 2016 International Association for Great lakes Research. Published by Elsevier B.V. All rights reserved.

关键词： Remote sensing Ocean color Chlorophyll a Satellite observations algorithm verification

来源：评论

学校读者我要写书评

暂无评论

CloudaSec: A Novel Public-key Based Framework to Handle Data Sharing Security in Clouds 11

CloudaSec: A Novel Public-key Based Framework to Handle Data...

引用

11th International Conference on Security and Cryptography (SECRYPT)

作者： Kaaniche, Nesrine Laurent, Maryline El Barbori, Mohammed Telecom SudParis Inst Mines Telecom Paris France

ISBN: (纸本)9789898565952

Recent years have witnessed the trend of leveraging cloud-based services for large scale content storage, processing, and distribution. Data security and privacy are among top concerns for the public cloud environments. Towards these security challenges, we propose and implement CloudaSec framework for securely sharing outsourced data via the public cloud. CloudaSec ensures the confidentiality of content in the public cloud environments with flexible access control policies for subscribers and efficient revocation mechanisms. CloudaSec proposes several cryptographic tools for data owners, based on a novel content hash keying system, by leveraging the Elliptic Curve Cryptography (ECC). The separation of subscription-based key management and confidentiality-oriented asymmetric encryption policies uniquely enables flexible and scalable deployment of the solution as well as strong security for outsourced data in cloud servers. Through experimental evaluation, we demonstrate the efficiency and scalability of CloudaSec, build upon OpenStack Swift testbed.

关键词： Cloud Storage Systems Data Security Access Control algorithm verification

来源：评论

学校读者我要写书评

暂无评论

A Distributed Phase Time Optimization Method of the coordinated control for active bus signal priority

A Distributed Phase Time Optimization Method of the coordina...

引用

3rd International Conference on Manufacturing Science and Engineering (ICMSE 2012)

作者： Fang, Sai Yin Li, Feng Southwest Forestry Univ Coll Mech & Traff Kunming 650224 Yunnan Peoples R China Transport Management Inst Minist Transpot Beijing 101601 Peoples R China

ISBN: (纸本)9783037853696

Active bus signal priority controlling method at a single intersection bases on single bus flow priority, applying for coordinated control in many intersections This paper comprehensively considered green wave of general traffic and bus traffic in every decision project, made the priority signal distributed phase time parameter, based on green wave band width of general traffic flow, general flow delay and bus flow delay, made a comprehensive benefit preferred model,made the best decision, verified the controlling algorithm.

关键词： bus signal priority coordinated control optimization model algorithm verification

来源：评论

学校读者我要写书评

暂无评论

verification in the water phantom of the irradiation time calculation done by the algorithm used in intraoperative radiotherapy

引用

REPORTS OF PRACTICAL ONCOLOGY AND RADIOTHERAPY 2010年第5期15卷 132-137页

作者： Slyk, Maria Litoborski, Marcin Greater Poland Canc Ctr Dept Med Phys Poznan Poland

Aim: The investigation of the irradiation time calculation accuracy of the GGPB algorithm used for IORT. Background: Conventionally, breast conserving therapy consists of breast conserving surgery followed by postoperative whole breast irradiation and boost. The use of intraoperative radiotherapy (IORT) enables the boost to be delivered already during the surgery. In this case, the treatment dose for IORT can be calculated by use of General Gaussian Pencil Beam (GGPB) algorithm, which is implemented in TPS Eclipse. Materials and methods: PDDs and OFs for electron beams from Mobetron and all available applicators were measured in order to configure the GGPB algorithm. Afterwards, the irradiation times for the prescribed dose of 3Gy were calculated by means of it. The results of calculations were verified in the water phantom using the Marcus ionization chamber. Results: The results differed between energies. For 6MeV the irradiation times calculated by the GGPB algorithm were correct, for the energy of 9MeV they were too small and for the energy of 4MeV theywere too large for applicators with smaller diameters, while acceptable for the remaining ones. Conclusion: The GGPB algorithm can be used in intraoperative radiotherapy for energy and applicator sets for which no significant difference between the measured and the prescribed dose was obtained. For the rest of energy-applicator sets the configuration should be verified and possibly repeated. (C) 2010 Greater Poland Cancer Centre, Poland. Published by Elsevier Urban & Partner Sp. z.o.o. All rights reserved

关键词： GGPB algorithm algorithm configuration algorithm verification IORT

来源：评论

学校读者我要写书评

暂无评论

On verification of a Distributed algorithm of Databases Arranged as a Ring

On Verification of a Distributed Algorithm of Databases Arra...

引用

International Conference on Innovative Computing and Communication/Asia-Pacific Conference on Information Technology and Ocean Engineering

作者： Qi, Minglong Guo, Qingping Zhong, Luo Wuhan Univ Technol Coll Comp Sci & Technol Wuhan 430070 Peoples R China

ISBN: (纸本)9780769539423

In a paper, Roscoe has proposed two algorithms that can preserve a form of consistency in the distributed databases arranged a ring, and validated them using a group-like algebra, invented by the same author. In this paper, we have simplified one of the algorithms and tried to validate it by applying a simple set theory. We suppose that each process located at a node of the ring emits one only one update in its history and all processes insert their updates in the ring at the same time. The behavior of the system is synchronized by a global system clock, and at each tick of the system clock, all updates move to their right neighbors.

关键词： algorithm verification Distributed algorithm Ring databases Data consistency

来源：评论

学校读者我要写书评

暂无评论

The Study on verification of Distributed algorithm for Ring Databases

The Study on Verification of Distributed Algorithm for Ring ...

引用

2010 The 2nd International Conference on Industrial Mechatronics and Automation (ICIMA 2010)

作者： Gao Guohong,Li Xueyong,Xiao Wenxian,Yan Shitao School of Information Engineer Henan Institute of Science and Technology Henan Xinxiang,China,453003

In this paper,we have applied a simple set theory for validating a simplified version of the *** though Rescoes algorithm is dramatically simplified so that some inner characteristics of the algorithm are accidentally removed,the mathematical structure we have developed is already relatively *** abstraction could make some useful insights into this so complicated problem that is the data replication consistency over a distributed database.

关键词： algorithm verification Set Theory Ring Databases

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：