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排序方式: 共有64条查询结果,搜索用时 15 毫秒
1.
MARCO SCHAERF 《Computational Intelligence》1991,7(3):154-159
The use of multivalued logics for knowledge representation and nonmonotonic reasoning has often been advocated, in particular within the general framework proposed by Ginsberg in his paper "Multivalued logics: a uniform approach to reasoning in artificial intelligence." His system is based on a multivalued logic with an arbitrary number of truth values classified with respect to two partial orders, a truth order and a knowledge order. This classification is very interesting and gives an intuitive appeal to the framework. In this paper the work by Ginsberg is critically reviewed, pointing out some flaws and ways to overcome them. Moreover, we present some ideas on how to modify the original schema in order to obtain a more semantically well-founded framework.
L'utilisation de la Iogique multivalente pour la représentation des connaissances et le raisonnement non monotone a souvent été préconisée, en particulier à l'intérieur du cadre général proposé par Ginsberg dans son article intitulé〘 Multivalued logics: a uniform approach to reasoning in artificial intelligence 〙 Son système est basé sur une logique multivalente comportant un nombre arbitraire de valeurs de vérité classées selon deux ordres partiels: un ordre de vérité et un ordre de connaissances. Cette classification est très intéressante et donne un attrait intuitif au cadre. Dans cet article, l'auteur examine le travail de Ginsberg, y relève des lacunes et propose des moyens de les corriger. De plus, il expose certaines idées en vue de modifier le schéma original et ainsi obtenir un meilleur cadre du point de vue de la sémantique. 相似文献
L'utilisation de la Iogique multivalente pour la représentation des connaissances et le raisonnement non monotone a souvent été préconisée, en particulier à l'intérieur du cadre général proposé par Ginsberg dans son article intitulé〘 Multivalued logics: a uniform approach to reasoning in artificial intelligence 〙 Son système est basé sur une logique multivalente comportant un nombre arbitraire de valeurs de vérité classées selon deux ordres partiels: un ordre de vérité et un ordre de connaissances. Cette classification est très intéressante et donne un attrait intuitif au cadre. Dans cet article, l'auteur examine le travail de Ginsberg, y relève des lacunes et propose des moyens de les corriger. De plus, il expose certaines idées en vue de modifier le schéma original et ainsi obtenir un meilleur cadre du point de vue de la sémantique. 相似文献
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In this paper we address the problem of building tools for improving the software engineering process by taking advantage of artificial intelligence techniques. More specifically, we provide a representation of the evolution of a software project by means of temporal logics. Such a representation is the basis for the construction of tools for the control and management of a software project. A system for Access and Version Control (SCAV) provides a suitable test bed for our approach. In the paper we present the formalization of the history of a software project developed under SCAV, and we show how several kinds of functionalities can be easily realized. The formalization is built within the framework of the event calculus in such a way that every step of the project development determined by the execution of a SCAV operation is described as an event in the calculus. We present an implementation of the system in PROLOG, which allows for a direct and natural formulation of the event calculus rules. 相似文献
5.
ANTENNAL AND BEHAVIORAL RESPONSES OF GRAPEVINE MOTH <Emphasis Type="Italic">Lobesia botrana</Emphasis> FEMALES TO VOLATILES FROM GRAPEVINE 总被引:2,自引:0,他引:2
Tasin M Anfora G Ioriatti C Carlin S De Cristofaro A Schmidt S Bengtsson M Versini G Witzgall P 《Journal of chemical ecology》2005,31(1):77-87
Grapevine moth Lobesia botrana is the economically most important insect of grapevine Vitis vinifera in Europe. Flower buds, flowers, and green berries of Chardonnay grapevine are known to attract L. botrana for oviposition. The volatile compounds collected from these phenological stages were studied by gas chromatography—mass spectrometry, and the antennal response of L. botrana females to these headspace collections was recorded by gas chromatography—electroantennography. The compounds found in all phenological stages, which consistently elicited a strong antennal response, were pentadecane, nonanal, and -farnesene. In a wind tunnel, gravid L. botrana females flew upwind to green grapes, as well as to headspace collections from these berries released by a piezoelectric sprayer release device. However, no females landed at the source of headspace volatiles, possibly due to inappropriate concentrations or biased ratios of compounds in the headspace extracts. 相似文献
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PIER PAOLO CIVALLERI MARCO GILLI 《International Journal of Circuit Theory and Applications》1996,24(1):37-47
The propagation phenomena occurring in cellular neural networks (CNNs) described by a one-dimensional template are investigated using a spectral technique. The CNN is represented as a scalar Lur'e system to which a suitable extension of the describing function technique is applied for predicting the existence and characteristics of spatiotemporal periodic oscillations. It is shown that such a method yields results that are in good agreement with those observed by time simulation of the system. 相似文献
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ROSALBA LANCIOTTI LUCIA VANNINI CLEMENCIA CHAVES LOPEZ MARCO GOBBETTI M ELISABETTA GUERZONI 《International Journal of Dairy Technology》2005,58(2):89-99
Four Yarrowia lipolytica strains were tested as cheese-ripening adjuncts with milk culture in cheese production to evaluate their effects on the microbiological and biochemical features of the cheeses. The Y. lipolytica strains were able to overcome the other naturally occurring yeasts and were compatible with lactic acid bacteria (LAB). Fourier transform infrared (FTIR) profiles and analysis of free fatty acids (FFAs) released during ripening showed that the strains induced a marked lipolysis and gave rise to different FFAs accumulation over time with respect to the control. Strain-dependent protein breakdown patterns were identified and these biochemical differences resulted in different cheese organoleptic characteristics. 相似文献
9.
MARCO TATULLO LUISA LIMONGELLI ROSA MARIA MARANO ALESSANDRA VALLETTA ANGELA TEMPESTA SANDRO RENGO 《Biocell》2022,46(8):1837-1842
The scientific community is continuously working to translate the novel biomedical techniques into effectivemedical treatments. CRISPR-Cas 9 system (Clustered Regularly Interspaced Short Palindromic Repeats-9), commonlyknown as the “molecular scissor”, represents a recently developed biotechnology able to improve the quality and theefficacy of traditional treatments, related to several human diseases, such as chronic diseases, neurodegenerativepathologies and, interestingly, oral diseases. Of course, dental medicine has notably increased the use ofbiotechnologies to ensure modern and conservative approaches: in this landscape, the use of CRISPR-Cas-9 systemmay speed and personalize the traditional therapies, ensuring a good predictability of clinical results. The aim of thiscritical overview is to provide evidence on CRISPR efficacy, taking into specific account its applications in oral medicine. 相似文献
10.
FRANCESCO PADUANO EMANUELA ALTOMARE BENEDETTA MARRELLI VINCENZO DATTILO HAIZAL MOHD HUSSAINI PAUL ROY COOPER MARCO TATULLO 《Biocell》2022,46(8):1827-1835
Oral Cancer (OC) is one of the most recurrent cancers in the head and neck squamous cancer (SCCHN)category. Recently, the genome-wide association studies (GWAS) have gained growing interest in the scientificcommunity. GWAS have identified several pathways involved in the interactions among general risk factors andgenomic variants affecting SCCHN. This systematic overview aims to critically evaluate the latest data reported withinthe scientific literature. The aim was to investigate the impact of genetic aspects on SCCHN onset and prognosis,involving other clinical and systemic co-factors. PubMed, Google Scholar, and Cancer Genetics Web databases havebeen systematically investigated for original articles published in the last two years, reporting studies on the mainqueries addressed in this work. This review also comparatively describes the impact of environmental andpathological co-factors in different types of cancers, clarifying and updating the role of genetic factors in SCCHNonset and development. The main outcomes reported may be helpful to drive clinicians towards their clinicalevaluations for the most appropriate therapeutic approach in SCCHN. 相似文献