The Air Quality Index (AQI) shows the state of air pollution in a unique and more understandable way. This work aims to forecast the AQI in Algeciras (Spain) 8 hours in advance. The AQI is calculated indirectly through the predicted concentrations of five pollutants (O3, NO2, CO, SO2 and PM10) to achieve this goal. Artificial neural networks (ANNs), sequence-to-sequence long short-term memory networks (LSTMs) and a newly proposed method combing a rolling window with the latter (LSTMNA) are employed as the (...) forecasting techniques. Besides, two input approaches are evaluated: using only the data from the own time series of the pollutant in the first case or adding exogenous variables in the second one. Several window sizes are employed (24, 28 and 72 hours) with ANNs and LSTMNAs. Additionally, several feature ranking methods are applied in the exogenous approach to select the most relevant lagged variables to feed the models. Results show how the proposed exogenous approach increases the performance of the prediction models. Besides, the newly proposed method LSTMNA provides the best performances in most of the cases evaluated. Hence, it constitutes an exciting alternative to standard LSTMs and ANNs to predict pollutants concentrations and, consequently, the AQI. (shrink)

Fall detection is a challenging task that has received the attention of the research community in the recent years. This study focuses on FD using data gathered from wearable devices with tri-axial accelerometers, developing a solution centered in elderly people living autonomously. This research includes three different ways to improve a FD method: an analysis of the event detection stage, comparing several alternatives, an evaluation of features to extract for each detected event and an appraisal of up to 6 different (...) clustering scenarios to split the samples in subsets that might enhance the classification. For each clustering scenario, a specific classification stage is defined. The experimentation includes publicly available simulated fall data sets. Results show the guidelines for defining a more robust and efficient FD method for on-wrist 3DACC wearable devices. (shrink)

Success semantics is a theory of content that characterizes the truth-conditions of mental representations in terms of the success-conditions of the actions derived from them. Nanay : 151-165, 2013) and Dokic and Engel have revised this theory in order to defend it from the objections that assailed its previous incarnations. I argue that both proposals have seemingly decisive flaws. More specifically, these revised versions of the theory fail to deal adequately with the open-ended possibility of unforeseen obstacles for the success (...) of our actions. I suggest that the problem of ignored obstacles undermines success semantics quite generally, including alternative formulations such as Blackburn’s. (shrink)

We present an inferentialist account of collective rationality and intentionality, according to which beliefs and other intentional states are understood in terms of the normative statuses attributed to, and undertaken by, the participants of a discursive practice—namely, their discursive or practical commitments and entitlements. Although these statuses are instituted by the performances and attitudes of the agents, they are not identified with any physical or psychological entity, process or relation. Therefore, we argue that inferentialism allows us to talk of collective (...) intentionality and agency without needing to posit the existence of any sort of collective psychology or mind. (shrink)

I argue that if there are nondisabled reasons to believe p, then there cannot be nondisabled reasons to believe something incompatible with p. I first defend a restricted version of the view, which applies only to situations where the relevant agent has complete evidence. Then, I argue for a generalized version of the view, which holds regardless of the agent's evidence. As a related result, I show that, given plausible assumptions, there cannot be nondisabled reasons to believe something false.

It is often thought that bets on the truth of known propositions become irrational if the losing costs are high enough. This is typically taken to count against the view that knowledge involves assigning credence 1. I argue that the irrationality of such extreme bets can be explained by considering the interactions between the agent and the bookmaker. More specifically, the agent’s epistemic perspective is altered by the fact that the bookmaker proposes that unusual type of bet. Among other things, (...) being willing to offer a bet with unnecessarily harmful losing costs is likely to undermine the baseline level of trustworthiness required for it to be rational to engage in betting exchanges. This sort of explanation does not require granting either that we assign credence lower than 1 to known propositions or that knowledge is sensitive to practical stakes. Moreover, I show that, in our ordinary lives, we frequently perform actions that we know would be disastrous if certain conditions did not obtain. This behaviour can be seen as a form of implicit extreme betting and, nevertheless, it is often rational. (shrink)

There is an interesting contrast between permissions to act and permissions to believe. Plausibly, if it is permissible to believe something from a perspective with incomplete evidence, it cannot become impermissible to believe it from a second perspective with complete evidence. In contrast, it seems that something permissible to do for an agent in a perspective with limited evidence can become impermissible in a second perspective in which all the relevant evidence is available. What is more, an agent with incomplete (...) evidence may be permitted to do something that she knows would be impermissible if she occupied a perspective of complete evidence. In this paper, I argue that this contrast is explained by a disanalogy between the role played by belief in epistemic deliberation and the role played by action in practical deliberation. Epistemic deliberation may be closed by adopting other attitudes than belief, whereas in general, practical deliberation can only be closed by endorsing some course of action. Thus, when there are pressures to close some practical deliberation, agents have to make a decision about what to do even if they lack relevant information. By contrast, lacking relevant evidence, agents may always refrain from forming a belief and close instead their epistemic deliberation by adopting some other attitude. (shrink)

This paper discusses practical akrasia from the perspective of the sophisticated form of moral subjectivism that can be derived from Nuno Venturinha’s (2018) remarks on moral matters.

I argue for the possibility of the thesis that metaphors are indispensable for grasping and expressing certain propositions. I defend this possibility against the objection that, if metaphors express propositions, once these propositions are identified they should be specifiable by non‐metaphorical means. I argue that this objection loses its strength if one adopts a Wittgensteinian, particularist view of thought, according to which grasping a propositional thought requires the ongoing exercise of a suitable skill often not characterizable by algorithmic rules. Within (...) this particularist framework, thus, it becomes possible that metaphorical skills have an indispensable role in cognition and communication. (shrink)

ABSTRACTSeveral authors have claimed that indicative conditionals are sensitive to the epistemic perspective of agents. According to this sort of view, the truth of an indicative conditional depends on the background evidence of some relevant agent or group of agents. In this paper, I argue that the context-dependence of indicative conditionals goes beyond this. Indicative conditionals are not only sensitive to the evidence of agents, but also to contextual factors that determine what is inferable from such background evidence. More specifically, (...) my proposal is that when the inference associated with a conditional is defeasible, the truth of that conditional is sensitive to practical stakes. (shrink)

This paper discusses practical akrasia from the perspective of the sophisticated form of moral subjectivism that can be derived from Nuno Venturinha’s remarks on moral matters.

Pragmatist views inspired by Peirce characterize the content of claims in terms of their practical consequences. The content of a claim is, on these views, determined by what actions are rationally recommended or supported by that claim. In this paper I examine the defeasibility of these relations of rational support. I will argue that such defeasibility introduces a particularist, occasion-sensitive dimension in pragmatist theories of content. More precisely, my conclusion will be that, in the sort of framework naturally derived from (...) Peirce’s pragmatist maxim, grasping conceptual contents is not merely a question of mastering general rules or principles codifying the practical import of claims, but decisively involves being sensitive to surrounding features of the particular situation at hand. (shrink)

Traditional expressivists want to preserve a contrast between the representational use of declarative sentences in descriptive domains and the non-representational use of declarative sentences in other areas of discourse. However, expressivists have good reasons to endorse minimalism about representational notions, and minimalism seems to threaten the existence of such a bifurcation. Thus, there are pressures for expressivists to become global anti-representationalists. In this paper I discuss how to reconstruct in non-representationalist terms the sort of bifurcation traditional expressivists were after. My (...) proposal is that the relevant bifurcation can be articulated by appeal to the contrast between relativistic and non-relativistic assertoric practices. I argue that this contrast, which can be specified without appeal to representational notions, captures the core intuitions behind the expressivist bifurcation. (shrink)

Resumen Hemos querido en este ensayo presentar algunas conclusiones gruesas de la investigación que fuimos realizando desde la Cátedra de Pensamiento Latinoamericano de la Escuela de Filosofía de la UCV, desde que la fundamos (1990) hasta nuestra jubilación (2010). Nos parecen centrales las siguientes ideas para la elaboración de una filosofía de la historia de Venezuela: comprender que no hubo guerra de independencia sino de secesión pues fue una guerra civil, no confundir patria con república, pues esta es sólo una (...) etapa de la primera y de estas conclusiones pasamos a realizar una reflexión filosófico-histórica que incorpora de una nueva manera la relación presente/pasado/futuro en la conformación de nuestro sujeto sociohistórico. Palabras clave: Filosofía de la Historia de Venezuela; Etnias: Indígena, Criolla y Bicultural-Binacional. 1810-2010: Two-hundred years of what? Of building up a path with 32 stonesIn this paper we have aimed to present some general conclusions of the investigation we conducted from the Latin American Thinking courses at the School of Philosophy-UCV, ever since we established them formally (1990) until our retirement (2010). The following ideas seem central for us in order to elaborate a philosophy of Venezuela’s history: understanding that there was not an independence war but a secession one, for it was a civil war; not conflating homeland with republic, for the latter is just a step of the former. From these conclusions we undertake a philosophical-historical reflection that incorporates in a new fashion the present/past/future relation in the formation of our socio-historical subject. Keywords: Philosophy of Venezuela’s history; Indigenous, Creole and Bicultural- Binational Ethnic groups. (shrink)

Este trabajo tiene como objetivo diagnosticar el estado de la competencia comunicativa en estudiantes de primer año de pedagogía, considerando las competencias léxica, de comprensión lectora y de producción escrita. Para ello, en el marco de un estudio de caso, se diseñaron y adaptaron tres instrumentos, uno para cada competencia: test de disponibilidad léxica, test de comprensión lectora y rúbrica para evaluar una tarea de escritura argumentativa. Dentro de los principales hallazgos, destaca que el rendimiento más alto corresponde al desempeño (...) en lectura, por sobre escritura, quedando el desempeño léxico en tercer lugar. Se concluye que los resultados obtenidos permiten clasificar los desempeños en niveles iniciales y que, si bien no es posible hablar de la existencia de una correlación, los vínculos más estrechos se presentan entre lectura-escritura, léxico-escritura y léxico-lectura, respectivamente. (shrink)

Este estudio busca indagar en la relación entre las concepciones sobre la escritura que tienen estudiantes de doctorado y su relación con la calidad textual y argumentativa que poseen textos redactados por ellos. Se revisaron 31 textos producidos por los doctorandos y se evaluó la calidad textual y la calidad argumentativa; luego, se aplicó un cuestionario de procesos de escritura, lo que permitió conocer las concepciones de los estudiantes sobre las dos variables mencionadas. Se encontró que las dimensiones ‘bloqueo’ y (...) ‘procrastinación’ inciden en la calidad de la escritura, mientras que ‘transformación del conocimiento’ se relaciona con la calidad argumentativa. (shrink)

En este trabajo se indaga en el comportamiento de la atenuación en los verbos que expresan duda, presentes en el corpus AMERESCO de conversaciones coloquiales de Santiago de Chile. Se describen las funciones de la atenuación de estos verbos de acuerdo con (1) el tipo de acto de habla, (2) la actividad de imagen y (3) algunas características sintáctico-discursivas. Los principales hallazgos demuestran que la atenuación se manifiesta a través de verbos doxásticos (_creer_, _parecer_, _cachar_, etc.), verbos modales (_poder_, _deber_) (...) y el verbo “saber” con polaridad negativa (“_no sé_”). Esta surge cuando se presenta lo dicho como una duda, bien para suavizar una opinión contraria o crítica, en cuyo caso su significado es de opinión, bien para informar sobre un estado de cosas, cuando su significado es epistémico. En el reconocimiento de su carácter atenuante, resultan clave el tipo de acto de habla en el que ocurren, el rol proyectado por el hablante en la conversación, la gestión de las imágenes y sus características sintáctico-discursivas, elementos que determinan si estas construcciones verbales expresan mayor o menor atenuación. (shrink)

Proponemos una revisión crítica a una corriente interpretativa de base lingüística de las religiones prerromanas del área indo-europea de la Península Ibérica que se ha venido desarrollando durante los últimos quince años; para ello tomamos como referencia un reciente trabajo de B.M. Prósper (Lenguas y religiones del occidente de la Península Ibérica, Salamanca, 2002) en el que se exponen los puntos de vista de dicha hipótesis interpretativa. Nuestro trabajo revisa sus tres planteamientos metodológicos básicos: su consideración de dichas religiones como (...) cultos idolátricos, su base evolucionista decimonónica y su manifiesto anti-dumezilianismo. Nuestra propuesta consiste en integrar el aporte de la lingüística dentro del ámbito de la Historia de las Religiones como un tipo de análisis que contribuya, con otros, a la construcción de hipótesis explicativas del fenómeno religioso de dichas sociedades. (shrink)

In the second half of the 20th century, Latin American poetry has had to deal with representing the phenomenon of forced disappearance in its various poetic productions. Some of those have incubated in the Central American civil wars, the dictatorial regimes of the Southern Cone and even in countries with supposed democratic stability such as Mexico and Colombia. Memorial de Ayotzinapa, by the Mexican poet Mario Bojórquez, and Carta de las mujeres de este país, by the Colombian poet and activist (...) Fredy Yezzed, experiment with the discursive forms of the long poem and the letter poem, respectively, to construct collective memories around a phenomenon that continues to take lives to this day. Bojórquez's text is concerned with constructing a testimony, apparently in situ, of the disappearance of the forty-three Mexican teacher trainees; Yezzed's work, for its part, refrains from referring to a specific event or place in order to provide a more complete testimony of the Colombian armed conflict, nearly seventy years old. The article analyzes the forms of the text, the subjects and their spaces of enunciation, as well as the memory strategies that are seen in both works. Thus, the testimonial status of poetry is confirmed, sometimes overshadowed by genres such as the novel and the short story. (shrink)

The search for mechanisms has been a common practice in scientific research. However, since the empiricist critique of causality, and especially during the second third of the twentieth century, other non-mechanistic perspectives—especially deductivism—gained predominance. But the sustained effort of authors such as Michael Scriven, Mario Bunge and especially Wesley Salmon contributed to restoring the respectability of causality and mechanisms in philosophy of science. Some members of the causal family, usually lumped under the name of “new mechanistic philosophy”, emphasize the description (...) of mechanisms, especially causal ones, as a central aspect of explanation and other research practices in several areas of science. This approach offers viable solutions to the various ontological and methodological objections that are opposed to the two traditional approaches. In this work the basic characteristics of three philosophies that highlight the description of mechanisms as a central element to explanation and their suitability for the science of ecology are discussed. (shrink)

¿Cuáles son los márgenes de la cultura en la contemporaneidad? ¿Cómo se puede resistir desde estos? ¿Quiénes lo hacen o pueden hacerlo? Por supuesto, es imposible responder estas preguntas en esta corta presentación, tal vez sean imposibles de responder sin importar la extensión del texto que las analice. No obstante, nos parece necesario presentarlas para situarlas en un contexto que nos permita problematizar este dossier. Zygmunt Bauman4 planteó que tres campos de conocimiento: la filosofía de la historia, la antropología filosófica (...) y la estética, y un concepto: la cultura, emergieron en el siglo XVIII con el propósito de explicar la crisis de una forma de comprender y estar en el mundo, que se había pensado y vivido como natural y que parecía mutar en un orden radicalmente humano y, por ende, endeble, arbitrario y cambiante. (shrink)

It is widely held that there is a distinctive norm of assertion. A plausible idea is that there is an analogous, perhaps weaker, norm for indirect communication via implicatures. I argue against this type of proposal. My claim is that the norm of assertion is a social norm governing public updates to the conversational record. Off the record implicatures are not subject to social norms of this type. I grant that, as happens in general with intentional actions, off the record (...) communicative acts may be subject to normative assessments on different levels (for instance, regarding their moral or prudential appropriateness). However, such assessments do not generate distinctive norms that apply to all cases of implicature. (shrink)

Scarcity acts as a mental burden that disrupts how people process information and make decisions (Mullainathan and Shafir in Scarcity: Why having too little means so much. Macmillan, Basingstoke, 2013; Mani et al. Science 342:976–980, 2013). In this study, we replicated Mani et al.’s (Science 342:976–980, 2013) experimental design to explore whether scarcity also taxes Colombian high school students’ mental bandwidth. In a lab-in-the-field experiment, we tested how 417 high school students from high and low socioeconomic status (SES) in Bogotá, (...) Colombia, responded to different scarcity situations. Students were first presented with hypothetical scenarios of harsh or soft scarcity. Next, participants had to solve a series of tasks that measured higher cognitive functions (i.e. Raven’s Progressive Matrices, Cognitive Reflection Task and questions to assess their Delay Discounting value) and had to explain how they would solve the scarcity situation. As opposed to Mani et al. (Science 342:976–980, 2013), we did not find that scarcity taxed individuals’ mental bandwidth, neither their cognitive nor executive functions. We found that low-SES individuals, under the harsh scarcity condition, displayed more empathic attributes than high-SES individuals. Taken together, the results of this study show the importance of replication in different cultures and environments. (shrink)

En el Nuevo Testamento griego, el término "kalós" (hermoso, bello) aparece 99 veces y el término "agathós" (bueno), 104. Casi con la misma frecuencia. Se ha traducido y se traduce "kalós" por bueno, lo cual no es exacto. Parece importante retener que Cristo hubiera utilizado tantas veces el concepto de belleza o hermosura, y que invitara al hombre a hacer obras hermosas, a realizar la belleza en su vida. Por eso, según el título de este libro (de 285 págs.), se (...) trata de la belleza no solo que corresponde a la persona de Cristo, sino también la que él comunica a las demás personas, la que se refiere a nosotros por ser obras suyas. Jesús habla de obras "kalá" (hermosas), de frutos "kaloùs" (hermosos) o de corazón "kalê kaì agathê" (hermoso y bueno). La Antigüedad griega también hablaba del hombre "kalòkagathós". Es verdad que todo lo bello es bueno, y viceversa, pero hay que matizar. El propio Jesús se autodenomina "kalós", hermoso, al hablar de sí mismo en el Evangelio diciendo que es el pastor bello. Una palabra clave del presente libro es “razonar”. Los Evangelios son muy escuetos, dicen solo lo imprescindible, fueron vertidos además en otro idioma distinto del que habló Jesús. Hay aspectos que no son comprendidos si no se tiene en cuenta lo razonable. Para comprender el Evangelio no basta con atender al estricto dato teológico contenido en sus textos, tan condensados, sino que es preciso hacer al mismo tiempo una sutil labor filosófica que permita descubrir lo que implícitamente se contiene en ellos. Esta necesaria tarea —liberada de todo fundamentalismo— muestra lo que es más razonable para saber quién y cómo es Cristo. Por ello el libro lleva como subtítulo "Una comprensión filosófica del Evangelio". Y lo hace sirviéndose principalmente de la filosofía de Marías y Ortega, lo cual —a pesar de ser el instrumento intelectual que mejor permite comprender el Cristianismo— no se había realizado todavía. Gracias a ese método, lo primero que se comprende es precisamente la extraordinaria belleza de Cristo y la que comunica a sus discípulos y a quien se hace su servidor, llamado por San Pablo "kalòs", hermoso. Circula la idea, incluso en algunos ambientes católicos, de que la razón y, por supuesto, la filosofía no son aptas para comprender el Evangelio. Este libro, más filosófico que teológico, reivindica el insoslayable papel de la razón, de la filosofía, de lo razonable, para comprender los Evangelios, y debe leerse como un "ensayo de Cristología según la razón vital". Sus consideraciones están hechas a la luz de la razón. No de la razón abstracta, propia del racionalismo, que poco o nada tiene que ver con ella, sino de la razón vital; de la razón sin más. De la razón que conduce a la fe; de la fe que conduce a la razón. El dato histórico, irrefragable, de los cuatro Evangelios postulaba que se estudiara iluminándolo con la razón, sin la cual la fe queda mutilada y coja, abstracta, sin luz propia. Pero la razón había sido frecuentemente vista en ámbitos clericales con malos ojos, con cierta sospecha, sin darse cuenta de que, si es auténtica —y no algo reduccionista—, ilumina, clarifica, disipa las tinieblas. Especialmente porque, en última instancia, la razón procede del Logos, Cristo, la Luz, la Razón por antonomasia, fuente y origen de ella. En el Prólogo de San Juan se unen la razón y la vida; se trata no de una razón abstracta, sino vital. El "Lógos" es entonces la Razón vital. Lejos de ser enemiga de la vida, como sostenían los irracionalistas, la razón es una función vital. Quien recibe al "Lógos" con fe fundada en el amor debe esforzarse por intentar entenderlo con la razón, por buscar su inteligencia. El "Lógos", Cristo, ilumina a quien lo recibe para que se produzca esa comprensión. Los griegos definían al hombre como "zôon lógon échon", el viviente que tiene logos, que tiene razón. Cristo se presenta como el Logos, la Vida ("Zoé") que ha creado a su imagen y semejanza a ese viviente que tiene logos. Luego la razón no se debe subestimar o despreciar, es algo divino; Dios, fuente y origen de toda razón, la Razón misma, desea ser comprendido mediante ella, depositada en cada hombre. «Si la Sabiduría es Dios, el verdadero filósofo es el que ama a Dios», escribe San Agustín. Porque el filósofo es el que ama la Sabiduría, Dios. Jesús dice que «la Sabiduría se ha justificado por sus obras», que «la Sabiduría se ha justificado por todos sus hijos». Los hijos de la Sabiduría, de Cristo, la aman, la justifican, la acreditan, la razonan porque son filósofos. Y la filosofía, el amor a la Sabiduría, es absolutamente necesaria e imprescindible para comprender a Cristo y su Evangelio, que siempre enseña lo razonable. (shrink)

¿Es posible ser nacionalista y cristiano a la vez? ¿Hasta qué punto se han influido y se influyen de forma mutua nacionalismo y Cristianismo, especialmente en España? ¿Debe el Cristianismo orientar acerca del nacionalismo? ¿Acaso no tiene la competencia o los suficientes recursos para hacerlo? Las respuestas a esas preguntas suelen tratarse, en general, con bastante torpeza, sin el requerido conocimiento histórico; hay muchos intereses creados a los que no interesa la verdad. Los lectores de este libro (de 292 págs.) (...) encontrarán datos históricos apenas conocidos, esenciales para una reflexión liberal, necesaria a la hora de comprender tanto el Cristianismo y el nacionalismo, por un lado, como para darse cuenta de hasta qué punto son incompatibles, por otro. "La verdad os hará libres". En Europa, todo nacionalismo tiene su origen en el absolutismo decimonónico, surgido como reacción violenta contra el liberalismo, lo cual no interesa que se conozca a los nacionalistas, profundamente descontentos de su propia historia a la que, mintiendo, quieren ocultar o inventarse otra en su lugar. Índice: Prólogo de Jaime Mayor Oreja- Introducción- I. La inmoralidad del nacionalismo- II. Cristianismo, Humanismo, liberalismo- III. Nacionalismo y Cristianismo- IV. Católicos liberales- V. Nacionalismo y clericalismo- VI. Política nacionalista y política cristiana- VII. Los españoles, amigos- Epílogo de Josep Tarradellas, Presidente de la Generalitat de Catalunya (de una carta suya al autor de este libro, fechada en Barcelona, en el Palau de la Generalitat, el 28 de noviembre de 1977). (shrink)

The systematic importance of the eidetic account of phantasy for Husserlian phenomenology in general is undisputed, but whether this account can be relevant for Aesthetics has often been put into question. In this paper I argue that Husserl’s rich phenomenology of phantasy, and in particular his account of perceptual phantasy, can nevertheless significantly enhance our understanding of how we recognize and imaginatively participate in artistic fictions. Moreover, I show how Husserl’s peculiar formulation of a non-intuitive phantasy at stake in artistic (...) representation anticipates some uses of the imagination in Aesthetics suggested by Ernst Gombrich and Kendall Walton. (shrink)