Search results for "TERMINI"
showing 10 items of 365 documents
On the Extension of the DIRECT Algorithm to Multiple Objectives
2020
AbstractDeterministic global optimization algorithms like Piyavskii–Shubert, direct, ego and many more, have a recognized standing, for problems with many local optima. Although many single objective optimization algorithms have been extended to multiple objectives, completely deterministic algorithms for nonlinear problems with guarantees of convergence to global Pareto optimality are still missing. For instance, deterministic algorithms usually make use of some form of scalarization, which may lead to incomplete representations of the Pareto optimal set. Thus, all global Pareto optima may not be obtained, especially in nonconvex cases. On the other hand, algorithms attempting to produce r…
Non-linear dynamics of alpha and theta rhythm: correlation dimensions and Lyapunov exponents from healthy subject's spontaneous EEG.
1997
The aim of the present paper was to analyze some non-linear dynamic properties of the resting EEG from healthy subjects under eyes closed conditions. For this purpose we digitally filtered the spontaneous EEG in the theta (3-8 Hz) and alpha frequency range (8-13 Hz) and considered these independent rhythms as signals from a deterministic system. Under certain conditions non-linear dynamic systems are able to generate deterministic chaos, which means that similar causes do not produce similar effects. This phenomenon is called sensitive dependence on initial conditions. From different lead positions (F3, F4, Cz, P3, P4, O1 and O2) we calculated the so-called correlation dimension D2, which i…
Beyond the Cultural Turn: A Critical Perspective on Culture-Discourse within Public Relations
2017
International audience; In 1992, Sriramesh and White (1992) pointed to the importance of culture for public relations. Two decades later, public relations scholars had answered their call in force (e.g., Bardhan & Weaver, 2011; Carayol & Frame, 2012; Edwards & Hodges, 2011; Sriramesh & Vercic, 2012). Sriramesh and other PR scholars have criticized much previous public relations research for its focus on the work of Hofstede and cultural characteristics that are apparently common across countries (Sriramesh, 2009), rather than approaches which present culture as a social phenomenon on the level of the social group (Frame, 2012), or as a communication resource or tool-kit (Swidler, 1986). Sri…
The Variability of the Photosynthetic Unit in Chlorella Fusca
1984
The concept of the photosynthetic unit (PSIT) was introduced by Gaffron and Wohl (1936) on the basis of Emerson and Arnold’s flash light experiments (1932). The PSU was defined as the minimum of chlorophyll molecules required for the evolution of one O2. Later on, the PSU was considered to be the complex of one reaction center and its appropriate antenna of light harvesting chlorophyll molecules. Assuming that there is an equal number of the PS I and PS II reaction centers the PSU was mostly expressed as Chl/P-700. However, recently it could be shown that the ratio of PS II/PS I is variable depending on the light conditions during growth (Kawamura et al., 1979; Myers, Graham, 1982). Further…
Paralēlu automātu veidi un iespējas
2015
Datorzinātnē labi ir pazīstami galīgie automāti – tie lasa vārdus noteiktā alfabētā un nosaka, vai nolasītais vārds pieder kādai konkrētai valodai. Daudz ir izpētīts par to, ko šādi automāti spēj izdarīt un kādu valodu atpazīšanai automāti vispār var eksistēt. Daudz mazāk ir pētīti paralēli automāti – sistēmas, kas sastāv no vairākiem automātiem, kas visi darbojas reizē uz vienu un to pašu ieejas vārdu un visi kopā nosaka nolasītā vārda piederību valodai. Ir daudz variantu, kā realizēt šādas paralēlu automātu sistēmas – piemēram, automātiem var atļaut darba laikā savā starpā komunicēt vai nē, tie var lasīt vārdu visi reizē vai katrs no savas vietas, tiem var būt vai nebūt kontrolējošā kompo…
¿Es posible ser moralmente responsable? Notas para una nueva definición del concepto de sujeto
2006
The Strawson´s Basic Argument is the stronger against moral responsibility in Philosophy of action. One should be responsible of his identity to be moral responsible of his actions, but then nobody could be never responsible. In this article I criticize orthodox solutions to Strawson´s sceptical challenge and show how they share with the Argument the same theological notion of monadical agent. A new solution needs a new conception of agent..
Unambiguous recognizable two-dimensional languages
2006
We consider the family UREC of unambiguous recognizable two-dimensional languages. We prove that there are recognizable languages that are inherently ambiguous, that is UREC family is a proper subclass of REC family. The result is obtained by showing a necessary condition for unambiguous recognizable languages. Further UREC family coincides with the class of picture languages defined by unambiguous 2OTA and it strictly contains its deterministic counterpart. Some closure and non-closure properties of UREC are presented. Finally we show that it is undecidable whether a given tiling system is unambiguous.
Possibilismo e determinismo nel rapporto tra analisi e piano
2009
Possibilismo e determinismo nel rapporto tra analisi e piano , viene sviluppato il rapporto tra i valori del determinismo scientifico nelle inferenze che derivano da analisi di scienze naturali e il possibilismo nelle inferenze che derivano dalle scienze sociali. Il Piano deve saper distinguere tra i due livelli per evitare la dispersione delle risorse e recuperare le possibilità sociali delle possibili azioni.
Weak and strong recognition by 2-way randomized automata
1997
Languages weakly recognized by a Monte Carlo 2-way finite automaton with n states are proved to be strongly recognized by a Monte Carlo 2-way finite automaton with no(n) states. This improves dramatically over the previously known result by M.Karpinski and R.Verbeek [10] which is also nontrivial since these languages can be nonregular [5]. For tally languages the increase in the number of states is proved to be only polynomial, and these languages are regular.
Block-Deterministic Regular Languages
2001
We introduce the notions of blocked, block-marked and blockdeterministic regular expressions. We characterize block-deterministic regular expressions with deterministic Glushkov block automata. The results can be viewed as a generalization of the characterization of one-unambiguous regular expressions with deterministic Glushkov automata. In addition, when a language L has a block-deterministic expression E, we can construct a deterministic finite-state automaton for L that has size linear in the size of E.