Search results for "25"
showing 10 items of 3263 documents
On using prototype reduction schemes to optimize locally linear reconstruction methods
2012
Authors version of an article published in the journal: Pattern Recognition. Also available from the publisher at: http://dx.doi.org/10.1016/j.patcog.2011.06.021 This paper concerns the use of prototype reduction schemes (PRS) to optimize the computations involved in typical k-nearest neighbor (k-NN) rules. These rules have been successfully used for decades in statistical pattern recognition (PR) [1,15] applications and are particularly effective for density estimation, classification, and regression because of the known error bounds that they possess. For a given data point of unknown identity, the k-NN possesses the phenomenon that it combines the information about the samples from a pri…
On the pattern recognition and classification of stochastically episodic events
2012
Published version of a chapter published in the book: Transactions on Compuational Collective Intelligence VI. Also available from the publisher at: http://dx.doi.org/10.1007/978-3-642-29356-6_1 Researchers in the field of Pattern Recognition (PR) have traditionally presumed the availability of a representative set of data drawn from the classes of interest, say ω 1 and ω 2 in a 2-class problem. These samples are typically utilized in the development of the system’s discriminant function. It is, however, widely recognized that there exists a particularly challenging class of PR problems for which a representative set is not available for the second class, which has motivated a great deal of…
Active-passive control strategy for adjacent buildings
2011
Author's version of a chapter in the book: 2011 Proceedings of the American Control Conference. Also available from the publisher at: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=05991059 In this paper, a control strategy to mitigate the vibrational response of adjacent buildings under seismic excitation is presented. The proposed strategy combines inter-building passive actuators with active actuators placed in the building stories. The main ideas are presented by means of a simplified two-building model; however, a semi-decentralized overlapping approach via the inclusion principle has been used to impose a proper information exchange structure suitable for wireless control of larg…
Tracking the Preferences of Users Using Weak Estimators
2011
Published version of am article from the book:AI 2011: Advances in Artificial Intelligence. Also available from the publisher on SpringerLink:http://dx.doi.org/10.1007/978-3-642-25832-9_81 Since a social network, by definition, is so diverse, the problem of estimating the preferences of its users is becoming increasingly essential for personalized applications which range from service recommender systems to the targeted advertising of services. However, unlike traditional estimation problems where the underlying target distribution is stationary, estimating a user’s interests, typically, involves non-stationary distributions. The consequent time varying nature of the distribution to be trac…
Fuzzy reliable tracking control for flexible air-breathing hypersonic vehicles
2011
Published version of an article in the journal: International Journal of Fuzzy Systems. Also available from the publisher: http://www.ijfs.org.tw/ In this paper, we present a fuzzy reliable tracking control design method for flexible air-breathing hypersonic vehicles (FAHVs) subject to disturbances and possible sensor/actuator failures. This problem is challenging due to the strong coupling effects, variable operating conditions and possible failures in FAHVs. First, Takagi-Sugeno (T-S) fuzzy model isused to represent the longitudinal dynamics model of FAHVs. Then, by considering the disturbances and the faults, the fuzzy reliable tracking problem is proposed, and the tracking control probl…
Networking logistic neurons can yield chaotic and pattern recognition properties
2011
Accepted version of an article the book: 2011 IEEE International Conference on Computational Intelligence for Measurement Systems and Applications (CIMSA) Proceedings. Published version available from IEEE: http://dx.doi.org/10.1109/CIMSA.2011.6059914 Over the last few years, the field of Chaotic Neural Networks (CNNs) has been extensively studied because of their potential applications in the understanding/recognition of patterns and images, their associative memory properties, their relationship to complex dynamic system control, and their capabilities in the modeling and analysis of other measurement systems. However, the results concerning CNNs which can demonstrate chaos, quasi-chaos, …
Livssyklusanalyse (LCA) av vegger i bindingsverk med kontinuerlig isolasjon : En sammenlignende LCA-studie av ytterveggsystemer i tre for miljøoptima…
2020
Master's thesis in Civil and structural engineering (BYG508) The building industry istaking measures in order to reduce its large carbon footprint. However, even more ecofriendly building solutions need to be used. External walls are constructed with a great usage of materials -in addition to being the building component were large portions of heat escape.This study answers the research question “How does timber-framed external walls with continuous outer insulation(BKI)perform from an environmental point of view?”. The software SimaPro is used to compare different types of external walls with regards to CO2-emissions. The findings in the study show thatBKI wallsdo have good energy efficien…
Impact of the recommendations on the vaccination of the tetanus–diphtheria in the labor area
2017
Abstract Objective Our aim is evaluate vaccination guidelines that were published by Ministry of Health of Spain and his impact in a mutual injuries work of Spain (FREMAP). Method Is a retrospective observational study of vaccination with tetanus–diphtheria (Td) in adults of mutual injuries of work of Spain (FREMAP) between January 2010 and December 2013. Results We have registered 126,101 injured employees for vaccination; of those have been vaccinated 11,468 (9%). We have not found significant differences in employees with incapacity or no. We have not found significant differences by sex. We have found significant differences by age group (46–55 years), women more than men (χ2 = 4.422; p…
Stress darbavietā un tā mazināšanas iespējas SIA CENTRUM EUROPA.
2019
Stress darba vietā ir aktuāla problēma, ko pierāda veikto pētījumu rezultāti, ne tikai Latvijā, bet visā pasaulē. Stresa pārvaldība darba vietā var ievērojami samazināt izmaksas, kas ir saistītas ar psihoemocionālajiem darba vides riska faktoriem. Bakalaura darbā tiek aprakstītas populārākās teorijas un aktuālākā informācijas, kas ir saistīta ar stresu, tā cēloņiem un sekām darba vietā un ārpus tās. Teorētiskās literatūras analīzes laikā tika analizētas populārākās metodes stresa līmeņa samazināšanai darba vietā. Bakalaura darba pētījumā tika pielietota metode: informatīvo materiālu par stresu un tā pārvarēšanas metodēm ieviešana. Veikti divi mērījumu, kuru rezultāts ir darbinieku stresa lī…
Debating Sound Money in Early Modern Europe: From Dualist to Metallic Monetary Systems
2019
International audience; In this paper, we present the monetary debates in Europe from the XVIth to the XVIIIth centuries from the viewpoint of the problem of good and sound money. The framework of the paper is built on a typology of monetary systems, by which a dualist system is distinguished from a metallic one. Under the dualist system, the value in units of account of the specie in circulation was defined by monetary proclamations (Einaudi locates this era from Charlemagne to the French Revolution). Metallist proponents aimed at preventing any kind of manipulations with a radical transformation of the system of payment, which gave birth to a metallic monetary system from the very end of …