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Dynamic software updating
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ACM SIGPLAN Notices archiveVolume 36 , Issue 5 (May 2001) table of contents
Pages: 13 - 23
Year of Publication: 2001
ISSN:0362-1340 Also published in ...
Authors
Michael Hicks
Computer and Information Science Department, University of Pennsylvania
Jonathan T. Moore
Computer and Information Science Department, University of Pennsylvania
Scott Nettles
Electrical and Computer Engineering Department, University of Texas at Austin
Publisher
ACM New York, NY, USA
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ABSTRACT
Many important applications must run continuously and without interruption, yet must be changed to fix bugs or upgrade functionality. No prior general-purpose methodology for dynamic updating achieves a practical balance between flexibility, robustness, low overhead, and ease of use.
We present a new approach for C-like languages that provides type-safe dynamic updating of native code in an extremely flexible manner (code, data, and types may be updated, at programmer-determined times) and permits the use of automated tools to aid the programmer in the updating process. Our system is based on dynamic patches that both contain the updated code and the code needed to transition from the old version to the new. A novel aspect of our patches is that they consist of verifiable native code (e.g. Proof-Carrying Code [17] or Typed Assembly Language [16]), which is native code accompanied by annotations that allow on-line verification of the code's safety. We discuss how patches are generated mostly automatically, how they are applied using dynamic-linking technology, and how code is compiled to make it updateable.
To concretely illustrate our system, we have implemented a dynamically-updateable web server, FlashEd. We discuss our experience building and maintaining FlashEd. Performance experiments show that for FlashEd, the overhead due to updating is typically less than 1%.


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Gamma system: continuous evolution of software after deployment
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ACM SIGSOFT Software Engineering Notes archiveVolume 27 , Issue 4 (July 2002) table of contents
SESSION: Faults and failure analysis table of contents
Pages: 65 - 69
Year of Publication: 2002
ISSN:0163-5948 Also published in ...
Authors
Alessandro Orso
Georgia Institute of Technology
Donglin Liang
Georgia Institute of Technology
Mary Jean Harrold
Georgia Institute of Technology
Richard Lipton
Georgia Institute of Technology
Publisher
ACM New York, NY, USA
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Downloads (6 Weeks): 4, Downloads (12 Months): 40, Citation Count: 17
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ABSTRACT
In this paper, we present the GAMMA system, which facilitates remote monitoring of deployed software using a new approach that exploits the opportunities presented by a software product being used by many users connected through a network. GAMMA splits monitoring tasks across different instances of the software, so that partial information can be collected from different users by means of light-weight instrumentation, and integrated to gather the overall monitoring information. This system enables software producers (1) to perform continuous, minimally intrusive analyses of their software's behavior, and (2) to use the information thus gathered to improve and evolve their software.


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Watermarking algorithm based on a human visual model
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Signal Processing archiveVolume 66 , Issue 3 (May 1998) table of contents
Pages: 319 - 335
Year of Publication: 1998
ISSN:0165-1684
Authors
J. F. Delaigle
C. De Vleeschouwer
B. Macq
Publisher
Elsevier North-Holland, Inc. Amsterdam, The Netherlands, The Netherlands
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10.1016/S0165-1684(98)00013-9
CITED BY 7

Ingemar J. Cox , Matt L. Miller, Facilitating watermark insertion by preprocessing media, EURASIP Journal on Applied Signal Processing, v.2004 n.1, p.2081-2092, 1 January 2004

Xinshan Zhu , Yong Gao , Yan Zhu, Image-adaptive watermarking based on perceptually shaping watermark blockwise, Proceedings of the 2006 ACM Symposium on Information, computer and communications security, March 21-24, 2006, Taipei, Taiwan

Changsheng Xu , Namunu C. Maddage , Xi Shao , Qi Tian, Content-adaptive digital music watermarking based on music structure analysis, ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP), v.3 n.1, p.1-es, February 2007

G. Rouvroy , F.-X. Standaert , F. Lefèbvre , J.-J. Quisquater , B. Macq , J.-D. Legat, Reconfigurable hardware solutions for the digital rights management of digital cinema, Proceedings of the 4th ACM workshop on Digital rights management, p.40-53, October 25-25, 2004, Washington DC, USA

Asifullah Khan , Anwar M. Mirza , Abdul Majid, Intelligent perceptual shaping of a digital watermark: Exploiting Characteristics of human visual system, International Journal of Knowledge-based and Intelligent Engineering Systems, v.10 n.3, p.213-223, July 2006

George Voyatzis , Ionnis Pitas, Protecting Digital-Image Copyrights: A Framework, IEEE Computer Graphics and Applications, v.19 n.1, p.18-24, January 1999

Florent Autrusseau , Patrick Le Callet, A robust image watermarking technique based on quantization noise visibility thresholds, Signal Processing, v.87 n.6, p.1363-1383, June, 2007
INDEX TERMS
Primary Classification: H. Information Systems H.1 MODELS AND PRINCIPLES
Additional Classification: C. Computer Systems Organization C.3 SPECIAL-PURPOSE AND APPLICATION-BASED SYSTEMS Subjects: Signal processing systems G. Mathematics of Computing G.4 MATHEMATICAL SOFTWARE Subjects: Algorithm design and analysis I. Computing Methodologies I.2 ARTIFICIAL INTELLIGENCE I.2.0 General Subjects: Cognitive simulation I.5 PATTERN RECOGNITION I.5.4 Applications Subjects: Signal processing K. Computing Milieux K.5 LEGAL ASPECTS OF COMPUTING K.5.1 Hardware/Software Protection Subjects: Copyrights
General Terms: Algorithms, Design, Human Factors, Legal Aspects, Measurement, Performance, Theory
Keywords: copyright, digital picture watermarking, human vision system model, masking, spread spectrum
Collaborative Colleagues:
J. F. Delaigle: colleagues
C. De Vleeschouwer: colleagues
B. Macq: colleagues

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Facilitating watermark insertion by preprocessing media
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EURASIP Journal on Applied Signal Processing archiveVolume 2004 , Issue 1 (January 2004) table of contents
Pages: 2081 - 2092
Year of Publication: 2004
ISSN:1110-8657
Authors
Ingemar J. Cox
Departments of Computer Science and Electronic and Electrical Engineering, University College London, Martlesham Heath, Ipswish, Suffolk, UK
Matt L. Miller
NEC Research Institute, Princeton, NJ
Publisher
Hindawi Publishing Corp. New York, NY, United States
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10.1155/S1110865704403072
ABSTRACT
There are several watermarking applications that require the deployment of a very large number of watermark embedders. These applications often have severe budgetary constraints that limit the computation resources that are available. Under these circumstances, only simple embedding algorithms can be deployed, which have limited performance. In order to improve performance, we propose preprocessing the original media. It is envisaged that this preprocessing occurs during content creation and has no budgetary or computational constraints. Preprocessing combined with simple embedding creates a watermarked Work, the performance of which exceeds that of simple embedding alone. However, this performance improvement is obtained without any increase in the computational complexity of the embedder. Rather, the additional computational burden is shifted to the preprocessing stage. A simple example of this procedure is described and experimental results confirm our assertions.

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Approximate Reasoning in MAS: Rough Set Approach
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Web Intelligence archiveProceedings of the 2006 IEEE/WIC/ACM International Conference on Web Intelligence table of contents
Pages 12-18
Year of Publication: 2006
ISBN:0-7695-2747-7
Author
Andrzej Skowron
Warsaw University, Poland
Publisher
IEEE Computer Society Washington, DC, USA
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Downloads (6 Weeks): 10, Downloads (12 Months): 137, Citation Count: 0
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10.1109/WI.2006.43
ABSTRACT
In modeling multiagent systems for real-life problems, techniques for approximate reasoning about vague concepts and dependencies (ARVCD) are necessary. We discuss an approach to approximate reasoning based on rough sets. In particular, we present a number of basic concepts such as approximation spaces, concept approximation, rough inclusion, construction of information granules in calculi of information granules, and perception logic. The approach to ARVCD is illustrated by examples relative to interactions of agents, ontology approximation, adaptive hierarchical learning of compound concepts and skills, behavioral pattern identification, planning, conflict analysis and negotiations, and perception-based reasoning.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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Elizabeth Amy Mcgovern , Andrew G. Barto, Autonomous discovery of temporal abstractions from interaction with an environment, University of Massachusetts Amherst, 2002

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[40] S. H. Nguyen, T. T. Nguyen, and H. S. Nguyen. Rough set approach to sunspot classification. In Slezak et al. [57], pages 263-272.

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42
Lech Polkowski , Sankar K. Pal , Andrzej Skowron, Rough-Neuro-Computing: Techniques for Computing with Words, Springer-Verlag New York, Inc., Secaucus, NJ, 2002

43
Zdzislaw Pawlak, Rough Sets: Theoretical Aspects of Reasoning about Data, Kluwer Academic Publishers, Norwell, MA, 1992

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55
[55] A. Skowron and J. Stepaniuk. Information granules and rough-neural computing. In Pal et al. [42], pages 43-84.

56
Andrzej Skowron , Jarosław Stepaniuk , James Peters , Roman Swiniarski, Calculi of Approximation Spaces, Fundamenta Informaticae, v.72 n.1-3, p.363-378, January 2006

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Dominik Slezak , JingTao Yao , James F. Peters , Wojciech Ziarko , Xiaohua Hu, Rough Sets, Fuzzy Sets, Data Mining, and Granular Computing: 10th International Conference, RSFDGrC 2005, Regina, Canada, August 31 - September 2, 2005, ... / Lecture Notes in Artificial Intelligence), Springer-Verlag New York, Inc., Secaucus, NJ, 2005

58
Peter Stone, Layered Learning in Multiagent Systems: A Winning Approach to Robotic Soccer, MIT Press, Cambridge, MA, 2000

59
Richard S. Sutton , Andrew G. Barto, Introduction to Reinforcement Learning, MIT Press, Cambridge, MA, 1998

60
William Swartout , Jonathan Gratch , Randall W. Hill , Eduard Hovy , Stacy Marsella , Jeff Rickel , David Traum, Toward virtual humans, AI Magazine, v.27 n.2, p.96-108, July 2006

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[62] C. Urmson, J. Anhalt, M. Clark, T. Galatali, J. P. Gonzalez, J. Gowdy, A. Gutierrez, S. Harbaugh, M. Johnson-Roberson, H. Kato, P. L. Koon, K. Peterson, B. K. Smith, S. Spiker, E. Tryzelaar, and W. R. L. Whittaker. High speed navigation of unrehearsed terrain: Red team technology for grand challenge 2004. Technical Report CMU-RI-TR-04-37, Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, June 2004.

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INDEX TERMS
Primary Classification: I. Computing Methodologies I.2 ARTIFICIAL INTELLIGENCE I.2.4 Knowledge Representation Formalisms and Methods
Additional Classification: I. Computing Methodologies I.2 ARTIFICIAL INTELLIGENCE I.2.11 Distributed Artificial Intelligence Subjects: Multiagent systems I.2.3 Deduction and Theorem Proving

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Channel sharing scheme for packet-switched cellular networks
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Wireless Networks archiveVolume 11 , Issue 6 (November 2005) table of contents
Pages: 661 - 676
Year of Publication: 2005
ISSN:1022-0038
Authors
Suresh Kalyanasundaram
Motorola India Electronics Limited, Bagmane Tech Park, C. V. Raman Nagar Post, Bangalore, India
Junyi Li
Flarion Technologies, Bedminster One, Bedminster, NJ
Edwin K. P. Chong
Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO
Ness B. Shroff
School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN
Publisher
Kluwer Academic Publishers Hingham, MA, USA
Bibliometrics
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10.1007/s11276-005-3521-x
ABSTRACT
In this paper, we study an approach for sharing channels to improve network utilization in packet-switched cellular networks. Our scheme exploits unused resources in neighboring cells without the need for global coordination. We formulate a minimax approach to Optimizing the allocation of channels in this sharing scheme. We develop a measurement-based distributed algorithm to achieve this objective and study its convergence. We illustrate, via simulation results, that the distributed channel sharing scheme performs significantly better than the fixed channel scheme over a wide variety of traffic conditions.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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[1] C.-J. Chang, P.-C. Huang and T.-T. Su, Channel borrowing scheme in a cellular radio system with guard channels and finite queues, in: IEEE International Communications Conference vol. 2, Dallas, TX (1996) pp. 1168-1172.

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[4] H. Jiang and S. Rappaport, CBWL: A new channel assignment and sharing method for cellular communication systems, IEEE Transactions on Vehicular Technology 43(2) (1994) 313-322.

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6
Hua Jiang , Stephen S. Rappaport, Prioritized channel borrowing without locking: a channel sharing strategy for cellular communications, IEEE/ACM Transactions on Networking (TON), v.4 n.2, p.163-172, April 1996 [doi>10.1109/90.490744]

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[7] S. Kalyanasundaram, J. Li, E.K.P. Chong and N.B. Shroff, Channel sharing scheme for packet-switched cellular networks, in: IEEE INFOCOM'99 New York (March 1999) pp. 609-616.

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A Channel Sharing Scheme to Improve System Capacity in Wireless Cellular Networks, Proceedings of the Third IEEE Symposium on Computers & Communications, p.700, June 30-July 02, 1998

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11
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INDEX TERMS
Primary Classification: C. Computer Systems Organization C.2 COMPUTER-COMMUNICATION NETWORKS C.2.5 Local and Wide-Area Networks Subjects: Access schemes
Additional Classification: C. Computer Systems Organization C.2 COMPUTER-COMMUNICATION NETWORKS C.2.1 Network Architecture and Design Subjects: Packet-switching networks; Wireless communication C.2.3 Network Operations Subjects: Network management E. Data E.4 CODING AND INFORMATION THEORY Subjects: Formal models of communication F. Theory of Computation F.2 ANALYSIS OF ALGORITHMS AND PROBLEM COMPLEXITY F.2.2 Nonnumerical Algorithms and Problems Subjects: Sequencing and scheduling
General Terms: Algorithms, Design, Management
Keywords: cellular networks, channel sharing, convergence, distributed algorithm, minimax problem, packet switching
Collaborative Colleagues:
Suresh Kalyanasundaram: colleagues
Junyi Li: colleagues
Edwin K. P. Chong: colleagues
Ness B. Shroff: colleagues

ABSTRACT
This paper describes a system architecture for realtime display of shaded polygons. Performance of 100,000 lighted, 4-sided polygons per second is achieved. Vectors and points draw at the rate of 400,000 per second. High-speed pan and zoom, alpha blending, realtime video input, and antialiased lines are supported. The architecture heavily leverages parallelism in several forms: pipeline, vector, and array processing. It is unique in providing efficient and balanced graphics that support interactive design and manipulation of solid models. After an overview of algorithms and computational requirements, we describe the details of the implementation. Finally, the unique features enabled by the architecture are highlighted.