Search results for "Identification"
showing 10 items of 1600 documents
Intruder Pattern Identification
2008
This paper considers the problem of intrusion detection in information systems as a classification problem. In particular the case of masquerader is treated. This kind of intrusion is one of the more difficult to discover because it may attack already open user sessions. Moreover, this problem is complex because of the large variability of user models and the lack of available data for the learning purpose. Here, flexible and robust similarity measures, suitable also for non-numeric data, are defined, they will be incorporated on a one-class training K N N and compared with several classification methods proposed in the literature using the Masquerading User Data set (www.schonlau.net) repr…
Implementation and performance of the ATLAS second level jet trigger
2008
ATLAS is one of the four major LHC experiments, designed to cover a wide range of physics topics. In order to cope with a rate of 40 MHz and 25 interactions per bunch crossing, the ATLAS trigger system is divided in three different levels. The first one (LVL1, hardware based) identifies signatures in 2 microseconds that are confirmed by the the following trigger levels (software based). The Second Level Trigger (LVL2) only looks at a region of the space around the LVL1 signature (called Region of Interest or ROI), confirming/rejecting the event in about 10 ms, while the Event Filter (Third Level Trigger, EF) has potential full event access and larger processing times, of the order of 1 s. T…
The Urban Park as a "Social Island". The ANP in the Participatory Project of Parco Uditore in Palermo
2019
An urban park provides many environmental and recreational facilities and services, and moreover it may become a catalyst for social energies and an instrument of community identification. This paper analyses whether participation and bottom-up planning may compensate institutional absences in implementation of urban parks, and how multiple criteria model may support socially shared decisions about their management. These issues are examined from the singular case of Parco Uditore in Palermo (Italy) that is located in a land which has been surprisingly undeveloped, despite the expansion of the city. The phases of promotion, planning and implementation of the park were the result of a synerg…
APPLICATION OF ADAPTIVE WAVELET NETWORKS FOR VIBRATION CONTROL OF BASE ISOLATED STRUCTURES
2010
Accepted version of an article from the journal: International Journal of Wavelets, Multiresolution & Information Processing. Official version article published as International Journal of Wavelets, Multiresolution & Information Processing, 2010 8(5), 773-791. doi: 10.1142/s0219691310003778 © World Scientific Publishing Company http:// http://www.worldscinet.com/ijwmip/ This paper presents an application of wavelet networks (WNs) in identification and control design for a class of structures equipped with a type of semiactive actuators, which are called magnetorheological (MR) dampers. The nonlinear model is identified based on a WN framework. Based on the technique of feedback linearizatio…
ean-Square Filtering for Polynomial System States Confused with Poisson Noises over Polynomial Observations
2011
Published version of an article in the journal: Modeling, Identification and Control. Also available from the publisher at: http://dx.doi.org/10.4173/mic.2011.2.1 In this paper, the mean-square filtering problem for polynomial system states confused with white Poisson noises over polynomial observations is studied proceeding from the general expression for the stochastic Ito differentials of the mean-square estimate and the error variance. In contrast to the previously obtained results, the paper deals with the general case of nonlinear polynomial states and observations with white Poisson noises. As a result, the Ito differentials for the mean-square estimate and error variance corre- spon…
Landing gear suspension control through adaptive backstepping techniques with H∞ performance
2011
Author's version of a chapter published in the book: Proceedings of the 18th IFAC World Congress 2011. Also available from the publisher at: http://dx.doi.org/10.3182/20110828-6-IT-1002.00589 Landing gear suspension systems fulfill the tasks of absorbing the vertical energy of the touch-down as well as providing passenger and crew comfort with a smooth ground ride before take-off and after landing. They are also designed to have optimal performance in the case of a hard landing. In general, the tasks of aircraft landing gears are complex and sometimes lead to a number of contradictory requirements. Although there are existing modifications of aircraft shock absorbers to reduce the problem, …
Semi-decentralized strategies in structural vibration control
2011
Published version of an article published in the journal: Modeling, Identification and Control. Also available from the publisher at: http://dx.doi.org/10.4173/mic.2011.2.2 In this work, the main ideas involved in the design of overlapping and multi-overlapping controllers via the Inclusion Principle are discussed and illustrated in the context of the Structural Vibration Control of tall buildings under seismic excitation. A detailed theoretical background on the Inclusion Principle and the design of overlapping controllers is provided. Overlapping and multi-overlapping LQR controllers are designed for a simplied five-story building model. Numerical simulations are conducted to asses the pe…
Demonstration of Semantic Web-based Medical Ontologies and Clinical Decision Support Systems
2016
Master's thesis in Information- and communication technology IKT590 - University of Agder 2016 Konfidensiell til / confidential until 01.01.2022
Radiofrekvences identifikācijas izmantošana laika izsekošanai sporta sacensībās
2016
Diplomdarbā tiek analizētas pasīvo RFID etiķešu izmaksu samazinājuma potenciāls kā iespēja biznesa veidošanai. Specifiski, lai skriešanas sacensību “Stirnu Buks” organizatoram varētu piedāvātu izdevīgāku laika izsekošanas tehnoloģiju par pašreizējo ārpakalpojuma sniedzēju - SPORTident. Darba rezultātā tiek secināts, ka ir iespējams piedāvāt pasīvo laika izsekošanas sistēmu lētāk par pašreizējo konkurentu un gūt sākotnēji plānoto peļņu. Tajā pašā laikā atšķirība no konkurenta piedāvātās cenas ir pietiekoši neliela, lai apšaubītu klienta vēlmi mainīt pakalpojuma sniedzēju. Piedāvātā pakalpojuma cenas samazināšana gadījumā mērķa peļņa netiek sasniegta un tiek secināts, ka tādā gadījumā piegādā…
Kalambūri Oskara Vailda komēdijā “Cik svarīgi būt nopietnam”
2017
Dramaturģija tiek pētīta lingivistikas kontekstā relatīvi īsu laiku un nav veikti daudz pētījumi par kalambūru izmantojumu Oskara Vailda komēdijā ‘Cik Svarīgi Būt Nopietnam’. Kalambūri ir izteikts komiskā efekta radīšanas instruments lugā, un šis darbs analizē to izmantojumu katram Vailda lugas ‘Cik Svarīgi Būt Nopietnam’ tēlam, kā arī pēta kalambūru radīto efektu saistībā ar tēlu prezentēšanu. Lai identificētu kalabūrus, tie ir uzskatīti par frazeoloģiskām vienībām, līdz ar to Nacisciones frazeoloģisko vienību identificēšanas process ir izmantots pētījumā. Sekojoši, Nash izstrādātā kalambūru taksonomija ir pielāgota un izmantota kalambūru klasificēšanai lugā, ar mērķi salīdzināt dažādus ka…