In cybersecurity, there is a call for adaptive, accurate and efficient procedures to identifying performance shortcomings and security breaches. The increasing complexity of both Internet services and traffic determines a scenario that in many cases impedes the proper deployment of intrusion detection and prevention systems. Although it is a common practice to monitor network and applications activity, there is not a general methodology to codify and interpret the recorded events. Moreover, this lack of methodology somehow erodes the possibility of diagnosing (...) whether event detection and recording is adequately performed. As a result, there is an urge to construct general codification and classification procedures to be applied on any type of security event in any activity log. This work is focused on defining such a method using the so-called normalized compression distance (NCD). NCD is parameter-free and can be applied to determine the distance between events expressed using strings. As a first step in the concretion of a methodology for the integral interpretation of security events, this work is devoted to the characterization of web logs. On the grounds of the NCD, we propose an anomaly-based procedure for identifying web attacks from web logs. Given a web query as stored in a security log, a NCD-based feature vector is created and classified using a support vector machine. The method is tested using the CSIC-2010 data set, and the results are analyzed with respect to similar proposals. (shrink)

El presente libro constituye una interesante propuesta para enfrentar el estudio del pasado de una manera distinta a la historiografía tradicional, a la cual se la ha criticado muchas veces por su escritura compleja y por la escasa empatía que las investigaciones generan con el lector que no es especialista en este tipo de conocimientos. Es por esto que, y al igual que lo realizado en XIX Historias del siglo diecinueve chileno, los autores del texto presentan una serie de artículos (...) en los que.. (shrink)

The goal of this article is to discuss several critical positions published recently in academic journals on the book The order of ‘Capital’, which aim is to lay the foundations for a republican reading of Marx’s major work. The core of the argument focuses against any attempt to derive normative proposals from scientific discoveries. From here, clarifying some key concepts and positions of the republican tradition is a necessary condition in order to show the close solidarity between Marx and Kant (...) about the formal and institutional conditions of any possible theory of justice. (shrink)

How does rationality bind the agnostic, that is, the one who suspends judgment about whether a given proposition is true? In this paper I explore two alternative ways of establishing what the rational requirements of agnosticism are: the Lockean–Bayesian framework and the doxastic logic framework. Each of these proposals faces strong objections. Fortunately, however, there is a rich kernel of requirements of agnosticism that are vindicated by both of them. One can then endorse the requirements that belong to that kernel (...) without thereby committing oneself to the problematic implications that stem from either of the aforementioned proposals. (shrink)

Jackson and Jackson (1995) argue that most current tests used to assess awareness of sequential material are flawed because of their emphasis on accuracy. They propose to distinguish two forms of sequence knowledge: Serial knowledge, that is, knowledge about the specific sequence that stimuli follow, which involves information about the statistical relationship between many sequence elements, and statistical knowledge, or knowledge about the probability of different transitions between adjacent sequence elements. Further, they suggest a new method to analyze generation performance, (...) which involves considering the correlation between subjects' responses and the distribution of transition probabilities, regardless of the accuracy of generation performance. In this comment, we first suggest that the distinction between serial and statistical knowledge is unwarranted except in one case which is not addressed by Jackson and Jackson. We propose instead that all sequence knowledge is essentially statistical in nature. Second, we suggest that using probabilistic instead of deterministic sequences is a better way to approach the assessment of explicit knowledge, and illustrate this contention with empirical and simulated examples based on previous and current research (Cleeremans, 1993; Cleeremans and McClelland, 1991; Jimenez, Mendez and Cleeremans. (shrink)

The aim of this paper is to suggest a possible way of understanding Parmenides' so-called doxa, starting from the clear and lucid formulation of the problem which is offered to us in some recent writings of N.-L. Cordero. We agree with Cordero (and some others) on the need to distinguish between the "opinions of mortals" and Parmenides' own physical theories, usually confused under the label of the doxa or "way of opinion" (I-II); not so with his proposal to insert the (...) 'scientific' fragments into the discourse on Truth, which seems rather incompatible with the sources (III) and ultimately grounded on the confusion –shared by most interpreters– of the ordering of the parts of the Poem, enounced at the end of fr. 1 (IV), with the "ways of inquiry" of frs. 2 and 6-7 (V). This is followed by an outline of a tentative reconstruction of Parmenides' polemics against the beliefs of mortals (VI-VIII). The guiding principle of Parmenides' physics is the mixture and interpenetration of the apparent opposites separated by mortals (VI), beginning with the antithesis 'light' / 'darkness', i. e. 'life' / 'death', the dominions of Zeus and of Hades in the traditional world vision which is refuted by the new cosmology of Parmenides (VII). But even so, the new cosmos is in its own way a "deceptive order" as well: since what-is is continuous and homogeneous, the entities postulated by the physical theory have to be necessarily fictitious or conventional; only the explicit acknowledgement of this status prevents the theory from the error of mortals, which consists in taking linguistic convention for the true being of things (VIII). (shrink)

Lo que la sociedad contemporánea necesita es integrar la mayor parte de lo que hasta ahora ha sido excluido, ignorado o despreciado. Utilizando la terminología hegeliana podemos decir que el Modernismo formuló una tesis que pretendía ser verdadera. Esa fue la fase afirmativa, que que, sin embargo, era sólo parcial. En consecuencia surgió una antítesis, la que se denomina Postmodernismo. Esta es la fase negativa, que se ha revelado también incompleta. Ahora nos vemos obligados a buscar una síntesis de las (...) dos fases anteriores, la verdad en un nivel superior. (shrink)

Las ciencias y las tecnologías nos han dado un enorme poder de transformación de nuestro entorno como nunca antes habíamos tenido. Actualmente las ciencias aplicadas y las tecnologías son orientadas por un instrumentalismo tecnocrático caracterizado por una razón instrumental, una pretensión de neutralidad y una visión de la naturaleza que privilegia el desarrollo de instrumentos técnicos como fines en sí mismos o en función de los valores financieros y reduce el medioambiente a su mera utilidad económica. Este artículo tiene el (...) objetivo de presentar como la teología de la creación y de la acción humana co-creadora contribuye a reorientar las ciencias aplicadas y las tecnologías hacia resolver los problemas de la humanidad y a adaptar responsablemente el medioambiente para hacerlo viable a la humanidad presente y futura, cuidando como administrador prudente el mundo creado. Esas contribuciones requieren de una mediación ética y axiológica que ponga al ser humano, sus relaciones sociales y al medioambiente por encima de las cosas-instrumentos. (shrink)

A proposta desse artigo é analisar as diferentes apropriações e entendimentos das Trovas de Bandarra no século XVII, a partir das tópicas do "sonhar" e "ver", que estruturam o poema profético. Identificando algumas estrofes recorrentes nos comentários seiscentistas, pretende-se discutir as polêmicas surgidas em torno dos "Sonhos" do sapateiro de Trancoso e como estas permitem identificar posições frente ao problema do sonho profético e de seu uso nas leituras do destino e futuro português. A estrutura do texto é dada pelo (...) passo das polêmicas em torno dos comentários às passagens selecionadas, com especial destaque para a figura do jesuíta Antonio Vieira e as disputas envolvendo seus textos na segunda metade do século XVII. (shrink)

Nos ocupamos aquí de cómo se produce y comprende la publicidad del espacio público y de cómo dicha producción y comprensión repercute normativa y performativamente sobre los usuarios de aquel. El enfoque que hemos escogido pretende comentar estos aspectos con la ayuda de las etnografías que se han venido realizando en los últimos tiempos sobre el cruising, por cuanto esta actividad, que implica una apropiación furtiva de determinados espacios públicos para el desarrollo de actividades sexuales anónimas entre hombres, ofrece un (...) observatorio privilegiado del desfase entre el espacio público como dispositivo performativo y los agentes, que no siempre son meramente moldeados por tales dispositivos. Encontramos en esta práctica una ventana privilegiada para el análisis de la forma en que lo público y lo privado son construidos espacial y conceptualmente en la dialéctica entre marcos morales y prácticas subjetivas. (shrink)

The following article is a response to Virginia Aspe’s “The Political Dilemmas of the Transformations of Mexico: A Philosophical Approach”. My aim is to discuss some ideas developed by Aspe Armella, pointing out, from the perspective of the history of Mexican philosophy, both the successes of her approach, as well as some aspects that deserve more debate.