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1
August 2016
ICIMCS'16: Proceedings of the International Conference on Internet Multimedia Computing and Service
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 4, Downloads (12 Months): 19, Downloads (Overall): 19
Full text available:
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Regulations play an important role in assuring the integrity of the Building Information Model (BIM) in Architecture, Engineering and Construction (AEC) project. Regulation based BIM model checking is widely used in many disciplines. It can ensure the model meets users' various requirements or detect the potential defects. However, the correctness ...
Keywords:
BIM, Design Guides, Model Checking
2
May 2014
Numerische Mathematik: Volume 127 Issue 1, May 2014
Publisher: Springer-Verlag New York, Inc.
In this paper, an approximate LU factorization algorithm is developed for nonsymmetric matrices based on the hierarchically semiseparable matrix techniques. It utilizes a technique involving orthogonal transformations and approximations to avoid the explicit computation of the Schur complement in each factorization step. A modified compression method is further developed for ...
Keywords:
65F30, 65F05, 65R20, 68W40, 68P05
3
April 2013
Advanced Engineering Informatics: Volume 27 Issue 2, April, 2013
Publisher: Elsevier Science Publishers B. V.
Path planning is a fundamental problem, especially for various AEC applications, such as architectural design, indoor and outdoor navigation, and emergency evacuation. However, the conventional approaches mainly operate path planning on 2D drawings or building layouts by simply considering geometric information, while losing abundant semantic information of building components. To ...
Keywords:
Indoor spaces, Path planning, BIM, Fast Marching Method (FMM), Industry Foundation Classes (IFC)
4
December 2012
Journal of Computational and Applied Mathematics: Volume 236 Issue 18, December, 2012
Publisher: Elsevier Science Publishers B. V.
A higher order numerical discretization technique based on Minimum Sobolev Norm (MSN) interpolation was introduced in our previous work. In this article, the discretization technique is presented as a tool to solve two hard classes of PDEs, namely, the exterior Laplace problem and the biharmonic problem. The exterior Laplace problem ...
Keywords:
Biharmonic, Finite difference, Scattered grid, Compactification, Exterior Laplace, Higher order
5
March 2012
IEEE Transactions on Computers: Volume 61 Issue 3, March 2012
Publisher: IEEE Computer Society
This paper presents a novel efficient satisfiability (SAT) algorithm based on maxterm covering. The satisfiability of a clause set is determined in terms of the number of relative maxterms of the empty clause with respect to the clause set. If the number of relative maxterms is zero, it is unsatisfiable, ...
Keywords:
Verification, satisfiability, maxterm covering, heuristics.
6
October 2011
ICFEM'11: Proceedings of the 13th international conference on Formal methods and software engineering
Publisher: Springer-Verlag
Programmable Logic Controllers are widely used in industry. Reliable PLCs are vital to many critical applications. This paper presents a novel symbolic approach for analysis of PLC systems. The main components of the approach consists of: (1) calculating the uncertainty characterization of the PLC systems, (2) abstracting the PLC system ...
Keywords:
PLC, Hidden Markov model, probabilistic analysis
7
October 2011
Journal of Medical Systems: Volume 35 Issue 5, October 2011
Publisher: Plenum Press
Wireless body sensor network (WBSN) has gained significant interests as an important infrastructure for real-time biomedical healthcare systems, while the security of the sensitive health information becomes one of the main challenges. Due to the constraints of limited power, traditional cryptographic key distribution schemes are not suitable for WBSN. This ...
Keywords:
Wireless body sensor network, Biometric cryptography, Health care system, Security and privacy, Key distribution
8
August 2011
TASE '11: Proceedings of the 2011 Fifth International Conference on Theoretical Aspects of Software Engineering
Publisher: IEEE Computer Society
Geometric algorithms are widely used in many scientific fields like computer vision, computer graphics. To guarantee the correctness of these algorithms, it's important to apply formal method to them. In this paper, we propose an approach to proving the correctness of geometric algorithms. The main contribution of the paper is ...
Keywords:
loop invariant, algorithm verification, theorem proving, TLA+2, geometry algorithm
9
August 2011
TASE '11: Proceedings of the 2011 Fifth International Conference on Theoretical Aspects of Software Engineering
Publisher: IEEE Computer Society
Propositional satisfiability problem (SAT) is a fundamental problem both in theory and practice. In the area of software engineering, people employ various techniques, such as model checking, theorem proving, automated testing and so on, to ensure the quality of software. Those techniques are usually based on SAT solvers. The efficiency ...
10
July 2011
Mathematical and Computer Modelling: An International Journal: Volume 54 Issue 1-2, July, 2011
Publisher: Elsevier Science Publishers B. V.
This paper considers a novel fault diagnosis mechanism for wireless sensor networks (WSNs). Without additional agents, the built-in and self-organized diagnosis mechanism can monitor each node in real time and identify faulty nodes. As the diagnosis is operated within a cluster of nodes, it can reduce power consumption and communication ...
Keywords:
Wireless sensor networks, Distributed system, Diagnosis, Performance
11
May 2011
ISPEC'11: Proceedings of the 7th international conference on Information security practice and experience
Publisher: Springer-Verlag
Cloud computing has emerged as the most influential paradigm in recent years. The new computing technology requires users to entrust their data to the cloud provider, which leads to security issues on the outsourced data. In order to achieve scalable, fine-grained and flexible access control for cloud computing, we extends ...
12
January 2011
Computers in Industry: Volume 62 Issue 1, January, 2011
Publisher: Elsevier Science Publishers B. V.
Programmable logic controllers (PLCs) are complex cyber-physical systems which are widely used in industry. This paper presents a robust approach to design and implement PLC-based embedded systems. Timed automata are used to model the controller and its environment. We validate the design model with resort to model checking techniques. We ...
Keywords:
Code synthesis, PLC, Formal specification, Embedded software
13
November 2010
SenSys '10: Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 2, Downloads (12 Months): 4, Downloads (Overall): 274
Full text available:
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With the advancement of the sensor network technology and cyber physical systems [2], the merging between the virtual cyber space and the real physical world is bound to happen, which will impact the lifestyle of the human being. The metropolitan area sensor networks, composed of millions of heterogeneous sensors and ...
14
November 2010
SIAM Journal on Matrix Analysis and Applications: Volume 31 Issue 5, July 2010
Publisher: Society for Industrial and Applied Mathematics
Given a symmetric positive definite matrix $A$, we compute a structured approximate Cholesky factorization $A\approx\mathbf{R}^{T}\mathbf{R}$ up to any desired accuracy, where $\mathbf{R}$ is an upper triangular hierarchically semiseparable (HSS) matrix. The factorization is stable, robust, and efficient. The method compresses off-diagonal blocks with rank-revealing orthogonal decompositions. In the meantime, positive ...
Keywords:
robust preconditioner, off-diagonal compression, Schur compensation, hierarchically semiseparable structure
15
Yunhao Liu,
Guomo Zhou,
Jizhong Zhao,
Guojun Dai,
Xiang-Yang Li,
Ming Gu,
Huadong Ma,
Lufeng Mo,
Yuan He,
Jiliang Wang,
Mo Li,
Kebin Liu,
Wei Dong,
Wei Xi
September 2010
Frontiers of Computer Science in China: Volume 4 Issue 3, September 2010
Publisher: Springer-Verlag New York, Inc.
We introduce GreenOrbs, our recent effort in exploring the fundamental challenges and future direction of long-term large-scale applications of wireless sensor networks. An integrated framework with more than 1000 sensors has been implemented, including the indoor test bed, prototype systems, and forest deployment: comprehensively supporting research, development, and forestry applications.
Keywords:
large-scale, long-term, sensor network
16
August 2010
PRICAI'10: Proceedings of the 11th Pacific Rim international conference on Trends in artificial intelligence
Publisher: Springer-Verlag
In this paper, we study a novel problem which we refer to as News Website Evaluation (NWE). Given a collection of news articles, NWE is primarily concerned with evaluating the importance of their websites with respect to specific news topics. This general problem subsumes many interesting applications including news tracking ...
Keywords:
news articles, news website evaluation, web mining, website ranking
17
August 2010
TASE '10: Proceedings of the 2010 4th IEEE International Symposium on Theoretical Aspects of Software Engineering
Publisher: IEEE Computer Society
Model checking suffers from the state explosion problem. Compositional abstraction and abstraction refinement have been investigated in many areas to address this problem. This paper considers the compositional model checking for timed systems. We present an automated approach which combines compositional abstraction and counter-example guided abstraction refinement (CEGAR). The proposed ...
Keywords:
Model Checking, Timed Systems, Abstraction Refinement
18
August 2010
TASE '10: Proceedings of the 2010 4th IEEE International Symposium on Theoretical Aspects of Software Engineering
Publisher: IEEE Computer Society
Programmable logic controllers (PLCs) represent a typical class of embedded software systems. They are widely used in safety-critical industrial applications, such as railways, automotive applications, etc. The paper presents a novel method to specify and verify PLC software systems with the theorem proving system Coq. Dependent inductive data types are ...
19
August 2010
Computers & Mathematics with Applications: Volume 60 Issue 3, August, 2010
Publisher: Pergamon Press, Inc.
We report on a method for formally specifying and verifying programmable logic controllers (PLCs) in the specification language TLA^+. The specification framework is generic. It separates the description of the environment from that of the controller itself and its structure is consistent with the scan cycle mechanism used by PLCs. ...
Keywords:
TLA+, PLC, Formal specification, Model checking
20
July 2010
ACM SIGMOBILE Mobile Computing and Communications Review: Volume 14 Issue 1, January 2010
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 2, Downloads (12 Months): 3, Downloads (Overall): 205
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This paper proposes a new biometric-based key distribution scheme, BodySec, for energyefficient secure communications in wireless body sensor networks. To the best of our knowledge, BodySec is the first approach that can remove the timing synchronization assumption of the biometric inter-pulse signals among different biomedical sensors. The basic design is ...
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