1,720,968 research outputs found
Dependency Graph To Improve Notifications' Semantic On Anomaly Detection
No full textBesides identifying anomalies, detection systems must offer additional information about the occurrence, aiming to help the network administrator in order to build an accurate diagnostic. This paper presents a lightweight approach to detect anomalies, improving the semantic power of notifications sent to network administrator. The key point of the proposed anomaly detection system is a correlation system based on a directed graph which represents the possible paths of anomaly propagation through the SNMP objects in a network element. The results obtained from initial tests were encouraging and showed that our system is able to detect anomalies on the monitored network element, avoiding the high false alarms rate. ©2008 IEEE.726729Cabrera, J.B.D., Lewis, L., Qin, X., Lee, W., Prasanth, R.K., Ravichandran, B., Mehra, R.K., Proactive Detection of Distributed Denial of Service Attacks using MIB Traffic Variables - A Feasibility Study (2001) Integrated Network Management Proceedings, 2001 IEEE/IFIP International Symposium on, pp. 609-622. , 14-18 maioLi, J., Manikopoulos, C., Early Statistical Anomaly Intrusion Detection of DOS Attacks Using MIB Traffic Parameters (2003) Proceedings of the 2003 IEEE Workshop on Information Assurance, pp. 53-59. , United States Military Academy, p, junThottan, M., Ji, C., Anomaly Detection in IP Networks (2003) IEEE Transactions in Signal Processing, 51 (8), pp. 2191-2204. , augW. Stallings SNMP, SNMPv2, SNMPv3, and RMON 1 and 2, 3. Addison-Wesley, 1998McCloghrie, K., Rose, M., (1991) Management Information Base for Network Management of TCP/IP-based internet: MIB-II, , RFC 1213, marProença Jr., M.L., Coppelmans, C., Bottoli, M., Mendes, L.S., The Hurst Parameter for Digital Signature of network Segment (2004) Fortaleza. Springer-Verlag in the LNCS series, pp. 772-781. , 11th International Conference on Telecommunications ICT, aug, 2004Rose, M.T., (1996) The Simple Book: An Introduction to Internet Management, , 2 ed. Prentice-HallGersting, J.L., (2002) Mathematical Structures for Computer Science, , 5 ed, W H FreemanCase, J.D., Partridge, C., Case Diagrams: A First Step to Diagrammed Management Information Bases (1989) ACM SIGCOMM Computer Communication Review, 19, pp. 13-16Zarpelão, B.B., Proença Jr., M.L., Mendes, L.S., Anomaly Detection Aiming Pro-Active Management of Computer Based on Digital Signature of Network Segment (2007) Journal of Network and Systems Management, 15 (2), pp. 267-28
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Cell Transfer Delay Monitoring In Atm Networks
No full textOne of the main features of ATM networks is to allow the establishment of connections with different Quality of Service (QoS) requirements. The monitoring of QoS parameters is fundamental to help network management decisions control traffic contracts. In this paper we present an in-service procedure to monitor end-to-end cell delay in ATM connections through OAM performance management cells. This procedure does not need to use synchronization between network elements in order to accomplish cell monitoring.194203Black, U., (1995) ATM: Foundation For Broadband Networks, , Prentice Hall, London(1999) Traffic Management Specification, Version 4.1, , ATM Forum, AF-TM-0121.000, MarchHuang, A., (1998) Advanced Traffic Management For Multiservice ATM Networks. N.E.T. White Paper, , http://www.net.comArora, A., Baras, J., (1998) Performance Monitoring In ATM Networks - Technical Research Report, , Center for Satellite and Hybrid Communication Networks and Institute of Systems Research, AprilGiroux, N., Ganti, S., (1999) Quality of Service In ATM Networks: State-of-the-art Traffic Management, , Prentice HallRoppel, C., Estimating Cell Transfer Delay in ATM Networks Using In-Service Monitoring Methods (1995) Proceedings of Globecom, pp. 904-908Hernández, J.G., Ghanbari, M., In-service monitoring of quality of service in ATM networks using OAM cells (1999) IEE Proceedings Communications, 146 (2), pp. 102-106. , April(1995) B-ISDN Operations and Maintenance Principles and Functions, , ITU-T Recommendation I.610, May -Chen, T., Monitoring and Control of ATM Networks Using Special Cells (1996) IEEE Network, September/October, pp. 28-38Chen, T., INQIRE: A Software Approach to Monitoring QoS in ATM Networks (1998) IEEE Network, March/April, pp. 32-37Baras, J.S., Arora, A., Mykoniatis, G., Delay Monitoring in ATM Networks (1999) Third Annual Federated Laboratory Symposium On Advanced Telecommunications/ Information Distribution Research Program (ATIRP), pp. 259-263. , University of Maryland, February 2-4Andrade, N.E.L., Alberti, A.M., Mendes, L.S., (2000) Hydragyrum - Ambiente De Simulação De Redes a Eventos Discretos, , XVIII Simpósio Brasileiro de Telecomunicações - SBrT, September, Gramado RS - BrazilSahinoglu, Z., Tekinay, S., On Multimedia Networks Self-Similar Traffic and Network Performance (1999) IEEE Communications Magazine, , Januar
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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