—formality of the modeling methodology
—ability to model static and dynamic aspects
—ability to pass between levels of differently rich structures by morphisms
—uniform representation of the communication process as
—an information process
—a decision process and
—a control process
—homogeneity of the representation and modeling methods
—ability to derive qualitative and quantitative statements.
The foundation is provided by a Discrete Event-Dynamic Net System which includes the axiomatic declaration of general Petri nets. In order to calculate the structural and dynamic aspects, so-called Petri net machines are developed. It is shown that this approach can even be used to treat the following aspects:
—use of time during the process
—increase of costs during the generation and transportation of information
—augmentation, evaluation and transformation of information objects.
Recursive formulas are derived and some examples calculated. 相似文献
Method: We conducted a 24-week live user evaluation of push notifications used in a behavior-based mobile app for a meal replacement program to understand the role of push notifications in persuading users to engage with self-monitoring tasks.
Results: User perception of the prompts were verified through questionnaires, which in conjunction with the interaction logs show that users were tolerant of multiple daily prompts. The decline in compliance to the tasks set, however, shows that while the participants did not object to receiving prompts, they were less likely to respond to them as the study progressed.
Conclusions: Push notifications and user tasks are appropriate mechanisms to engage users with mobile technology in the short term. 相似文献
Internet of Things (IoT) is providing new services and insights by sensing contextual data but there are growing concerns of privacy risks from users that need immediate attention.
The Reason
The IoT devices and smart services can capture Personally Identifiable Information (PII) without user knowledge or consent. The IoT technology has not reached the desired level of maturity to standardize security and privacy requirements.
The Solution
IoT Privacy by Design is a user-centric approach for enabling privacy with security and safety as a ‘win-win’ positive outcome of IoT offerings, irrespective of business domain. The Proactive and Preventive Privacy (3P) Framework proposed in this paper should be adopted by the IoT stakeholders for building trust and confidence in end users about IoT devices and smart services. 相似文献
They center around the notion of computability.
In this paper we propose a new definition of computability which lays the foundations for a theory of cybernetic and intelligent machines in which the classical limits imposed by discrete algorithmic procedures are offset by the use of continuous operators on unlimited data. This data is supplied to the machine in a totally parallel mode, as a field or wave.
This theory of machines draws its concepts from category theory, Lie algebras, and general systems theory. It permits the incorporation of intelligent control into the design of the machine as a virtual element. The incorporated control can be realized in many (machine) configurations of which we give three:
a) a quantum mechanical realization appropriate to a possible understanding of the quantum computer and other models of the physical microworld,
b) a stochastic realization based on Kolmogorov-Gabor theory leading to a possible understanding of generalised models of the physical or thermodynamic macroworld, and lastly
c) a classical mechanical realization appropriate lo the study of a new class of robots.
Particular applications at a fundamental level are cited in geometry, mathematics, biology, acoustics, aeronautics, quantum mechanics, general relativity and. Markov chains. The proposed theory therefore opens a new way towards understanding the processes that underlie intelligence. 相似文献
The results of our paper are summarized as follows:
1)As important decision-making in adaptive QCS, the decision-making for estimalion of fitness and examination of attainability are proposed and formalized mathematically.
2)A refinement process is formalized in which models are revised according to the changes of market.
3)Basic steps for setting quality goals are obtained which are based on the above formalization. 相似文献
Using an encryption function and one-way function, Chaum’s protocol works in three phases. In Phase I, the communicants exchange their public keys. In Phase II, each communicant generates a random string. The first communicant cryptographically commits to that string, and sends the string to the other communicant after receiving the other’s string. In Phase III, using any of four different “scenarios” the communicants verify that each possesses the same two strings. The protocol forces any MitM to cause the communicants to possess different pairs of strings. The text-messaging scenario is similar to a forced-latency protocol proposed by Wilcox-O’Hearn in 2003.
This article implements and experimentally demonstrates the effectiveness of the third scenario, which uses timing to detect a MitM in text-messaging. Even assuming a MitM can send messages without any network latency, the protocol forces the MitM to cause delays noticeable by the communicants. This article is the first to explain, demonstrate, and evaluate Chaum’s protocol, which Chaum described only in an abandoned and nearly inscrutable patent application. 相似文献
Advanced Information Systems for Lawyers V. Mital & L. Johnson, 1992 London: Chapman & Hall. pp. 306, £35.00
Law of Contract Laurence Koffman & Elizabeth MacDonald, 1992 London: Fourmat Publishing, 430 pp., paperback £22.50
The Electronic Media and the Transformation of Law M. Ethan Katsh, 1991 Oxford: Oxford University Press. £13.95 相似文献
Yearbook of Law, Computers and Technology, Volume 5. K.V. Russell (Ed.), 1991. London: Butterworths. £29.50.
Computers, Artificial Intelligence and the Law. Mervyn E. Bennun (Ed.), 1991. London: Ellis Horwood. xx +132 (including bibliography & index), £26.50
Modelling Legal Argument: reasoning with cases and hypotheticals. Kevin D. Ashley, 1990. Cambridge: MIT Press. 329 pp. 相似文献
Method: Convenience sample of 34 healthy participants wore Stro II, Philadelphia, Headmaster, and AspenVista® cervical orthoses for four-hour periods. Participants reported discomfort level (scale 0–6) and location.
Results: Participants reported mean discomfort for all orthoses over the four-hour test between ‘a little discomfort’ and ‘very uncomfortable’ (mean discomfort score = 1.64, SD = 1.50). Seven participants prematurely stopped tests due to pain and six reported maximum discomfort scores. Significant linear increase in discomfort with duration of wear was found for all orthoses. Significantly less discomfort was reported with Stro II than Headmaster and Philadelphia. Age correlated with greater perceived discomfort. Orthoses differed in the location discomfort was experienced.
Conclusion: Existing cervical orthoses cause discomfort influenced by design and duration of wear with orthoses’ design the more significant factor. This work informed the design of a new orthosis and future orthoses developments.
Practitioner Summary: The purpose of this study was to gain greater knowledge about the discomfort caused by wearing of existing neck orthoses in order to inform the design and development of a new neck orthosis. This study gathers empirical data from a surrogate population and concludes that orthosis design is more influential than the duration of wear. 相似文献
Up to now, “information process” has not had a scientifically conclusive definition nor its implicit structure.
The presenting information process performs logical operations with discrete information units (Bits) to achieve a goal, integrating the discrete mutually connected sequence of symbols and the extracting process’ hidden information in the structure of an information Observer. The probing time-space observation develops the unit of space-time geometry-memorizing logic.
The defined information process starts generating observations of a random process via the logic of probing impulses, sequentially cutting the process entropy measure and creating the discrete information units whose integration enfolds the information geometrical structure of an Observer. Found composite stages of the information process and the synthesized optimal process trajectory minimize observation time in an artificially designed information Observer with intellectual searching logic. The analytical modeling, computer simulations, and experimental applications validate the results. 相似文献
The simulation process, which consists of model building and model selection, followed by the generation and execution of a software simulator, can be partially automated if an Object-Oriented methodology is adopted. In this article, a methodology is presented, which is presently under investigation in the DESiRE (Dynamic Expert Systems in Robotic Experimentation)project
In the modelling phase, a hierarchical, uniform way of describing and manipulating continuous and discrete models is needed, if the highly desirable reusability of submodels is to be achieved. This is only possible if a clear distinction is made between bare models (and information about their intrinsic coupling) and causal simulation experiment-related data.
In the simulation phase, before generating numerical simulation code, a symbolic reduction of the continuous parts of the model is performed, thus eliminating inaccuracy introduced by the untimely application of possibly unstable numerical algorithms.
Finally, from the reduced representation, executable simulator-objects are produced for use in a distributed environment. 相似文献
This article describes in detail how to find the complete wiring of the rotors and reflector of Enigma, as well as other specifics, using data that Rejewski had at his disposal, by systematically presenting the resolution of all cases that could have been encountered. Similarly, we complete those stages of the procedure that were only outlined by Rejewski. 相似文献
Introduction to Computer Law, 2nd Edn David I. Bainbridge, 1993 London: Pitman £18.99
Deontic Logic in Computer Science: normative system specification John‐Jules CH. Meyer & Roel J. Wieringa, 1993 London: John Wiley £34.95, xiv + 317pp. 相似文献
This report discusses the basic recognition underlying the use of these tools, and presents on a conceptual level an essential philosophy and methodology of coordinating company-wide activities
The basic idea of this report is to make an additional subsystem which helps us to organize the diversified information of activities in order to coordinate activities easily. 相似文献
Practitioner Summary:
This article aims to identify the risky situations of novice motorcyclists in real roads. Two hundred forty-eight events were recorded and 13 incident scenarios identified. Results revealed that a lack of hazard perception contributed to the majority of these events. The most frequent scenario corresponds to a lane change in dense traffic. 相似文献
Law enforcement’s work on disassembling the Citadel Banking Trojan in 2013, a variant of the ZeuS Baking Trojan brought light multiple tiers of cybercriminals. Dimitry Belorossov a/k/a Rainerfox, was alleged to have operated a Citadel command and control server ultimately controlling 7,000 victim computers. This cybercriminal essentially purchased Citadel – really nothing more than a “user”. Stepping up one level of cyber-crime capability we have the extradition and arrest of Mark Vartanyan, a/k/a Kolypto, wo allegedly developed, improved and maintained the Citadel banking Trojan – a malware developer. Finally, at the top end of the cybercriminal scale we have “Aquabox” the alleged creator of the Citadel Banking. In 2013, it was announced the Citadel Banking Trojan responsible for stealing $500 million. Aquabox is still at large.
This journal paper explores cybercriminal actors from a unique perspective: by the type of the attack they conduct and the relationship of the malicious actor to the victim business. Understanding the relationship of the actor to the type of attack inflicted provides an understanding of the motivation of the individual or group. Understanding the motivation of these criminals can provide valuable insight into countering both insider and external threats. 相似文献
Of Authors and Origins: essays on copyright law Brad Sherman & Alain Strowel (Eds) Oxford, Clarendon Press, 1994 xiv + 313 pp., £30.00 (hardback)
Future Air Navigation Systems Werner Guldimann & Stefan Kaiser Dordrecht, Martinus Nijhoff, 1993 Utrecht Studies in Air and Space Law, Vol. 13 viii + 281 pp., £76.50 (hardback)
The Law of Copyright Terence Prime London, Fourmat Publishing, 1992, xxiv + 313 pp., £30.00 (paperback) 相似文献
Practitioner Summary: We modified an existing fatigue model using known physiological properties in order to predict fatigue during nine different submaximal force profiles; consistent with efforts seen in industrial work. We expect this model to be included in digital human modelling software, for the assessment of repetitive work and muscle fatigue in repetitive tasks.
Social Media Summary: The proposed model has applications for estimating task fatigue in proactive ergonomic analyses of complex force patterns using digital human models. 相似文献
It is shown that each activity array yields many different representations. A procedure through which the various representations can be obtained is described that consists of: (1) the selection of a mask specifying a pattern for sampling the data, (2) the sampling procedure through which certain types of time-invariant relations are determined for the given mask, (3) the simplification of the time-invariant relations, if necessary or desirable.
A basis for the objective comparison of possible representations and ascertainment of the representation with the highest possible degree of determinism, subject to given constraints, is developed.
The procedure is applicable to both well defined and fuzzy variables of any scale. No classification into input and output variables is required, although it is not prohibited. 相似文献
Auditing a strategic plan begins with a review of what it constitutes (its elements) and the methodology (its process) used in developing the plan. It thus becomes much easier to focus the audit effort in determining whether the output for each step along the way in these two broad streams has been achieved.
If not carefully planned and executed, a strategic plan audit could do irreparable damage to the reputation of the audit effort throughout the organization. As a result, it requires a multi-talented team with a high-powered leader, preferably the chief audit executive.
Although a strategic plan fails due to such common factors as planning teams lacking an understanding of the business, lack of commitment, not having the right people, or not adapting to a changing environment to take full advantage of technological developments, there is a key reason often overlooked: lack of an audit of the plan itself which, if done properly, could uncover these reasons for failure long before they happen. 相似文献