Search results for " constraints"
showing 10 items of 109 documents
Shift-Invariant Canonical Polyadic Decomposition of Complex-Valued Multi-Subject fMRI Data with a Phase Sparsity Constraint
2020
Canonical polyadic decomposition (CPD) of multi-subject complex-valued fMRI data can be used to provide spatially and temporally shared components among groups with both magnitude and phase information. However, the CPD model is not well formulated due to the large subject variability in the spatial and temporal modalities, as well as the high noise level in complex-valued fMRI data. Considering that the shift-invariant CPD can model temporal variability across subjects, we propose to further impose a phase sparsity constraint on the shared spatial maps to denoise the complex-valued components and to model the inter-subject spatial variability as well. More precisely, subject-specific time …
Controllo contabile e controllo di costituzionalità delle leggi: una diversa prospettiva sul giudizio di costituzionalità in via incidentale
2019
1. Cinque importanti pronunce della Corte costituzionale su impulso del giudice contabile nel controllo sui rendiconti regionali e sui bilanci degli Enti territoriali. - 2. Funzioni pubbliche neutrali e accesso al giudizio in via incidentale. - 3. Le peculiarità delle questioni sollevate nei giudizi di parificazione dei rendiconti generali e gli orientamenti del Giudice costituzionale. - 4. La rilevanza e la ridondanza. - 5. Norme perturbative degli equilibri economico-finanziari ed atipicità degli effetti delle decisioni di accoglimento? - 6. Le prospettive: il controllo sui costi dei diritti e sugli effetti delle sentenze. Some recent rulings of Italian Constitutional Court (Corte Cost. n…
Differential constraints for iteratively generated curves
2021
Roughness is a complex concept, that is multiscale, and based on the study of the local behavior of a curve or a surface in a given neighborhood. A large number of conventional statistical parameters are currently available to attempt to appreciate this concept in the different application areas that make use of it. But it is often difficult, for a given application domain or a special need, to know precisely which parameter(s) connect(s) the topography of a surface to the physical phenomena that it undergoes. We believe that a geometric characterization should be more suitable. We suggest to control roughness by exploiting the differential behavior of curves and surfaces. We are interested…
Does Public Deliberation really Need Normative Constraints? Recovering the Aristotelian Rhetorical Theory
2016
There was recently an attempt to correlate some sectors of the studies on argumentation and the theory of democracy. The relationship between these two areas concerns the fact that in both cases there is a significant interest in normative models of good argumentation. In these models there is no place for rhetoric. Our work has a twofold aim: (1) to show that, starting from the Aristotelian rhetoric, it is possible to develop a more suitable model of argumentation in the public sphere and (2) to doubt the very need to identify normative constraints for this type of argument.
Temporal constraints and creativity in bass lines of eminent jazz musicians
2023
Tämän eksploratiivisen tutkimuksen ensimmäisenä päätavoitteena on selvittää, miten päätöksentekoon ja toiminnan suunnitteluun käytettävissä oleva aika (esitettävän musiikin tempon ja harmonisen rytmin mukaan mitattuna) on yhteydessä luovuuteen huipputason jazzbasistien bassolinjoissa, kun luovuutta mitataan sävelkuvioiden vaihtelevuutena. Tutkimuksen toisena päätavoitteena on selvittää, onko laajan tietovaraston oppiminen välttämätön edellytys luovuudelle bassolinjojen rakentamisen yhteydessä. Aineisto koostuu 42:sta Paul Chambersin ja Ron Carterin bassolinjan nuotinnoksesta, joissa kaikki neljäsosanuoteista poikkeavat sävelkestot on joko poistettu tai muutettu neljäsosanuoteiksi. Aineiston…
Educación artística : revista de investigación
2016
Resumen: El siguiente articulo pretende identificar posibles espacios comunes entre arte y educacion partiendo de la propuesta artistica Mapa dels Desitjos [1] del colectivo Crater [2] . Esta propuesta se llevo a cabo en el contexto de la XVII Mostra d’Art Public / Universitat Publica de la Universitat de Valencia. Mapa dels Desitjos surgio de la idea de preguntar a la comunidad universitaria como organizarian su vida si no tuviesen en cuenta la cuestion economica y de hacer publicas sus respuestas. A partir de esta experiencia, analizamos y reflexionamos en torno a cuatro preguntas que estructuran el analisis: ?Que paralelismos existen entre los roles de artista/publico y maestro/estudiant…
A PSO highway alignment optimization algorithm considering environmental constraints
2013
In recent years, there has been a growing need to develop and delineate algorithms that quickly provide optimized highway alignments. The matter is very complex since it is dominated by several factors and engineers have to achieve different and relevant targets (such as minimization of construction and earthwork costs, compliance with environmental and right-of-way constraints, maximization of safety and comfort for users, conformity with geometric standards). The possible solutions of this problem are clearly infinite and only modern artificial intelligence techniques can really simplify and speed up the highway design process. In this study a search algorithm, based on a Swarm Artificial…
Labor Market Search, Housing Prices and Borrowing Constraints.
2010
Mortgage market deregulation in the early 1980s coincided in time with a sharp break in the cyclical behavior of many variables related to housing and to the labor market. This paper analyses the joint dynamics of labor market variables, output and housing prices in a search model with efficient bargaining and financial frictions. In a setting of household heterogeneity, only mortgaged-backed loans are available for impatient households, whose borrowing cannot exceed a proportion of the expected value of their real estate holdings. This feature of the credit market, together with search and matching frictions in the labor market, establish a strong link between credit constraints and consum…
Seismo-stratigraphic model of “La Bandita” area in the Palermo Plain (Sicily, Italy) through HVSR inversion constrained by stratigraphic data
2018
Ambient noise Horizontal-to-Vertical Spectral Ratio (HVSR) technique is commonly used approach to obtain 1D models of the shear-wave velocity in the shallow surface of an investigated area. However, obtained models can have a wide margin of uncertainty if inversions have not been appropriately constrained by detailed stratigraphic information. An application of HVSR inversion constrained by lithostratigraphic data is presented in order to verify the effectiveness of this technique for purposes of geological and geophysical reconstruction of a sedimentary basin in a densely urbanized area. This is often the case of seismic microzonation studies, in which almost all the information derives fr…
A comprehensive approach to the 3D geological modelling of sedimentary basins: example of Latvia, the central part of the Baltic Basin
2015
This paper presents a semi-automatic approach adapted to the modelling of the geological structure of sedimentary basins. The modelling approach is based on developing the algorithm of the main geological processes so that the geometrical relationship is automatically defined between model elements. The algorithm is based on the assumption that sedimentary basins are formed as a result of the repeated sequence of sedimentation, faulting and erosion. This approach allows of successful modelling of the geological structure of the sedimentary basins with limited data coverage: stratigraphic intervals from well logs describing the thicknesses of sedimentary strata and a limited amount of struct…