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Automatic Operation Logging and Usability Validation
"... The article discusses tools that contribute to the usefulness validation of software products. Automatic operation logging of software product is used for market research, to measure the product utility and for usability validation. It is used in two ways. First, for attaining usability measures, ba ..."
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Cited by 2 (1 self)
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The article discusses tools that contribute to the usefulness validation of software products. Automatic operation logging of software product is used for market research, to measure the product utility and for usability validation. It is used in two ways. First, for attaining usability measures
ReVirt: Enabling Intrusion Analysis through Virtual-Machine Logging and Replay
- In Proceedings of the 2002 Symposium on Operating Systems Design and Implementation (OSDI
, 2002
"... Rights to individual papers remain with the author or the author's employer. Permission is granted for noncommercial reproduction of the work for educational or research purposes. This copyright notice must be included in the reproduced paper. USENIX acknowledges all trademarks herein. Current ..."
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Cited by 469 (26 self)
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system loggers have two problems: they depend on the integrity of the operating system being logged, and they do not save sufficient information to replay and analyze attacks that include any non-deterministic events. ReVirt removes the dependency on the target operating system by moving it into a
Analyzing PC Operation Logs by Functionality Clustering of Networks
"... Abstract. This paper aims at analyzing user behavior from PC operation logs by the functionality clustering of networks. The functionality clustering method was proposed by Fushimi et al. This method employs PageRank algorithm and classifies nodes according to their functions and roles in the netwo ..."
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Abstract. This paper aims at analyzing user behavior from PC operation logs by the functionality clustering of networks. The functionality clustering method was proposed by Fushimi et al. This method employs PageRank algorithm and classifies nodes according to their functions and roles
Fibonacci Heaps and Their Uses in Improved Network optimization algorithms
, 1987
"... In this paper we develop a new data structure for implementing heaps (priority queues). Our structure, Fibonacci heaps (abbreviated F-heaps), extends the binomial queues proposed by Vuillemin and studied further by Brown. F-heaps support arbitrary deletion from an n-item heap in qlogn) amortized tim ..."
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Cited by 739 (18 self)
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time and all other standard heap operations in o ( 1) amortized time. Using F-heaps we are able to obtain improved running times for several network optimization algorithms. In particular, we obtain the following worst-case bounds, where n is the number of vertices and m the number of edges
Raptor codes
- IEEE Transactions on Information Theory
, 2006
"... LT-Codes are a new class of codes introduced in [1] for the purpose of scalable and fault-tolerant distribution of data over computer networks. In this paper we introduce Raptor Codes, an extension of LT-Codes with linear time encoding and decoding. We will exhibit a class of universal Raptor codes: ..."
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Cited by 577 (7 self)
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: for a given integer k, and any real ε> 0, Raptor codes in this class produce a potentially infinite stream of symbols such that any subset of symbols of size k(1 + ε) is sufficient to recover the original k symbols with high probability. Each output symbol is generated using O(log(1/ε)) operations
Primitives for the manipulation of general subdivisions and the computations of Voronoi diagrams
- ACM Tmns. Graph
, 1985
"... The following problem is discussed: Given n points in the plane (the sites) and an arbitrary query point 4, find the site that is closest to q. This problem can be solved by constructing the Voronoi diagram of the given sites and then locating the query point in one of its regions. Two algorithms ar ..."
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Cited by 534 (11 self)
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are given, one that constructs the Voronoi diagram in O(n log n) time, and another that inserts a new site in O(n) time. Both are based on the use of the Voronoi dual, or Delaunay triangulation, and are simple enough to be of practical value. The simplicity of both algorithms can be attributed
The Ponder Policy Specification Language
- LECTURE NOTES IN COMPUTER SCIENCE
, 2001
"... The Ponder language provides a common means of specifying security policies that map onto various access control implementation mechanisms for firewalls, operating systems, databases and Java. It supports obligation policies that are event triggered conditionaction rules for policy based management ..."
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Cited by 499 (28 self)
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The Ponder language provides a common means of specifying security policies that map onto various access control implementation mechanisms for firewalls, operating systems, databases and Java. It supports obligation policies that are event triggered conditionaction rules for policy based management
Factoring polynomials with rational coefficients
- MATH. ANN
, 1982
"... In this paper we present a polynomial-time algorithm to solve the following problem: given a non-zero polynomial fe Q[X] in one variable with rational coefficients, find the decomposition of f into irreducible factors in Q[X]. It is well known that this is equivalent to factoring primitive polynomia ..."
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Cited by 961 (11 self)
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polynomials feZ[X] into irreducible factors in Z[X]. Here we call f ~ Z[X] primitive if the greatest common divisor of its coefficients (the content of f) is 1. Our algorithm performs well in practice, cf. [8]. Its running time, measured in bit operations, is O(nl2+n9(log[fD3). Here f~Tl[X] is the polynomial
WEB-BASED ELECTRONIC OPERATION LOG SYSTEM –
"... The Zlog system, which is an electronic operation log system based on Zope, has been used at the KEKB and PF-AR accelerator facilities in KEK since January 2004. Zope1 is a Web content management system based on several open source software components such as Python and PostgreSQL. By using the Zope ..."
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The Zlog system, which is an electronic operation log system based on Zope, has been used at the KEKB and PF-AR accelerator facilities in KEK since January 2004. Zope1 is a Web content management system based on several open source software components such as Python and PostgreSQL. By using
Aries: A transaction recovery method supporting fine-granularity locking and partial rollbacks using write-ahead logging
- ACM Transactions on Database Systems
, 1992
"... In this paper we present a simple and efficient method, called ARIES ( Algorithm for Recouery and Isolation Exploiting Semantics), which supports partial rollbacks of transactions, finegranularity (e.g., record) locking and recovery using write-ahead logging (WAL). We introduce the paradigm of repea ..."
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Cited by 388 (10 self)
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of the operations and require the ability to perform operation logging. ARIES is flexible with respect to the kinds of buffer management policies that can be implemented. It supports objects of
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