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Padula, Antonio
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Padula, Antonio
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7 results
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- PublicationOpen AccessAn expert system for the seismic protection of architectural building heritage(Wit Press, 1999)
; ; ; ; ;Bruno, S.; Dip. di Ingegneria Strutturale "La Sapienza" ;Di Stefano, A.; Dip. di Ingegneria Strutturale "La Sapienza" ;Gavarini, C.; Dip. di Ingegneria Strutturale "La Sapienza" ;Padula, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; ; ; ; ;Brebbia, C.A.; Wessex Institute of Technology, United Kingdom ;Oliveto, G.; Università di Catania; The definition of a form for the seismic protection of Architectural Building Heritage, a work carried out for the Italian Research Council, has led to the implementation of a knowledge system, that presently consents to partially analyse the walls of historical buildings. Among other things the system uses geometrical reasoning techniques that permit to survey the building by means of articulation and composition of elementary items, “built”, case by case, with a specific geometric, material and constructive entity. Such items can represent an elementary section of the building, for instance a pillar, an arch, a brick etc., and starting from their position and characteristics the walls and all the used masonry and finishing types can be individuated in detail without the necessity of applying to approximate formulations or to formal and typological evaluations that, with their rigid terminologies, can oversimplify the complex of historical buildings and their importance in the context.89 131 - PublicationRestrictedA shell for the Construction of Knowledge Bases Aimed at Assessing the Behaviour of RC Buildings under Seismic Actions(WIT Press, 2005)
; ;Padula, Antonio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; Maugeri, MicheleThe work consists in the design and implementation of a shell permitting the construction of knowledge bases in order to carry out assessments and simulations using data from the Information System of the GNDT Project. The shell that is presented in this paper is intended to aid the domain expert in introducing his expertise, in the form of rules, in a computer system. Special attention is given to problems regarding knowledge acquisition and its role within the expert system design and realization. The basic components - inference engine, knowledge acquisition subsystem, explanation subsystem, user interface - and some characteristics of the shell under construction are presented, too80 18 - PublicationOpen AccessAMADEUS 3.0: a new Knowledge Based System for the Assessment of Earthquake damaged Buildings(Taylor & Francis, 1994-08-28)
; ; ;Gavarini, Carlo; Dip. di Ingegneria Strutturale "La Sapienza" ;Padula, Antonio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; ; Duma, GeraldThe knowledge-base of the new AMADEUS is reconstructed through the use of the Fuzzy Set Theory, that permits to formalize the procedures in a non-deterministic way. The uncertainty and the imprecision of the gathered data are managed with techniques typical to Fuzzy Logic. Moreover, the System permits the user to modify the same knowledge-base or to insert new bases and to use then the most appropriate one in specific situations. The gathered data, as well as the results of the evaluations, are loaded on data-bases and they can be used successively for further elaborations and/or new evaluations with different knowledge-bases.130 220 - PublicationOpen AccessApplicazioni di Intelligenza Artificiale alla difesa dai terremoti(CNR-Gruppo Nazionale per la Difesa dai Terremoti, 2000)
; ; ;Padula, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Gavarini, C.; Dip. di Ingegneria Strutturale "La Sapienza"; ; ; ;Bernardini, Alberto; Università degli Studi di PadovaDuring the last ten years the Research Unit has carried on its investigations relative to the utilisation of AI methodologies for seismic protection. Interesting results have been obtained, due to the possibilities the same methodologies offer to: • Supply operative tools for activities on field, in general Expert Systems; • Supply a user friendly environment, also dealing with large amount of information coming from various sources: survey and evaluation of data, decisions, design provisions, priorities, code specifications…; • Manage uncertain data and/or heuristic or empirical information, as well as to deal with semantic value of linguistic sources; The research results have been illustrated in the works indicated in the bibliography. Seismic risk is the common connotation unifying the different questions dealt with. Further applications in the frame of Civil Engineering and Architecture are possible, too. The investigations regard: • Priority choices in interventions on monuments under seismic risk. The proposed tool: Expert System EXPRIM • Utilisation of "Fuzzy Set" theory for the interpretation of historical data regarding seismic damages • Postearthquake usability assessment of buildings damaged by an earthquake or by a seismic crisis. The proposed tool: Expert System AMADEUS • Definition of an Informative System and of a Knowledge Based System for monuments and/or historical building heritage that should guide in data supply and management, as well as in safeguard and risk mitigation interventions. In the course of the investigation different kinds of informatics tools have been used, such as normal programming languages, PROLOG and the shell NEXPERT OBJECT. The exigency to have at disposal a tool able to use the Fuzzy logic, as well as the problems inherent to the same investigations has led the Research Unit to set up an original shell called KSBT.249 169 - PublicationOpen AccessFrom Seismic Historical Information to Seismic Intensity Assessment through Fuzzy Set Theory(Taylor & Francis, 1994-08-28)
; ;Padula, Antonio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; Duma, GeraldTo define the damages buildings have suffered due to the past earthquakes, the information we have at disposal is generally linguistic and often difficult to interpret. The present model aims to formalize the knowledge we get from historical data as well as its reliability. To formalize and to represent uncertainty, we have adapted some techniques realized in the frame of the Fuzzy Set Theory. The same techniques, once the damage has been defined, are used to carry out the evaluation of the macroseismic intensity of the earthquake in question.94 165 - PublicationOpen AccessKSBT: A Knowledge-based Systems Building Tool(IABSE, 1995-03-16)
; ; ; ; ;Bruno, Silvia; Dip. di Ingegneria Strutturale "La Sapienza" ;Gavarini, Carlo; Dip. di Ingegneria Strutturale "La Sapienza" ;Padula, Antonio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Vittori, Federico; Dip. di Ingegneria Strutturale "La Sapienza"; ; ; The increasing interest in AI as a powerful aid in solving civil engineering problems has suggested the realization of a domain-independent tool for knowledge-based systems construction. The paper provides the description of a fuzzy inference engine, which has appropriately been developed in order to both build knowledge bases and to perform evaluations. Knowledge acquisition issues and approximate reasoning techniques are also illustrated and discussed.300 166 - PublicationOpen AccessAn AI Approach to the Management of Uncertainty in Post-Earthquake usability of Buildings Assessment(University of Strathclyde, 1996-08-14)
; ; ; ;Bruno, Silvia; Dip. di Ingegneria Strutturale "La Sapienza" ;Gavarini, Carlo; Dip. di Ingegneria Strutturale "La Sapienza" ;Padula, Antonio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; The present paper provides a description of the last release of a Knowledge Based System, AMADEUS 4.0, appropriately realized in order to support the operators in carrying out a set of procedures related to the postearthquake safety evaluation of buildings. The System encodes a methodological proposal due to one of the Authors, and validated in occasion of the 1990 South-Eastern Sicily Earthquake. Such a methodology had formerly been translated in a series of written guidelines accompanying a questionnaire, appositely developed so as to perform the various phases leading to the assessment. While these latter conventional tools display a rigid and unfriendly platform to the inspectors’ task, particularly when considering the hard conditions that usually follow an earthquake, AMADEUS 4.0 captures and structures the knowledge of recognized experts in the field of seismic engineering, thus providing a flexible and transparent environment to the transfer of the encoded expertise to the operators.109 110