Search results for "Presentation"
showing 10 items of 2405 documents
Performance evaluation of robotic knowledge representation (PERK)
2012
In this paper, we explore some ways in which symbolic knowledge representations have been evaluated in the past and provide some thoughts on what should be considered when applying and evaluating these types of knowledge representations for real-time robotics applications. The emphasis of this paper is that the robotic applications require real-time access to information, which has not been one of the aspects measured in traditional symbolic representation evaluation approaches.
Symbolic and conceptual representation of dynamic scenes: Interpreting situation calculus on conceptual spaces
2001
In (Chella et al. [1,2]) we proposed a framework for the representation of visual knowledge, with particular attention to the analysis and the representation of scenes with moving objects and people. One of our aims is a principled integration of the models developed within the artificial vision community with the propositional knowledge representation systems developed within symbolic AI. In the present note we show how the approach we adopted fits well with the representational choices underlying one of the most popular symbolic formalisms used in cognitive robotics, namely the situation calculus.
Indispensability and Effectiveness of Diagrams in Molecular Biology
2019
Abstract: In this paper I aim to defend a twofold thesis. On one hand, I will support, against Perini (2005), the indispensability of diagrams when structurally complex biomolecules are concerned, since it is not possible to satisfactorily use linguistic-sentential representations at that domain. On the other hand, even when diagrams are dispensable I will defend than they will generally be more effective than other representations in encoding biomolecular knowledge, relying on Kulvicki-Shimojima’s diagrammatic effectiveness thesis. Finally, I will ground many epistemic virtues of biomolecular diagrams (understandability, explanatory power, prediction and hypothesis evaluation) on their cog…
Las representaciones del saber académico: Aportaciones desde la Geografía Escolar
2019
When we talk with basic education´s teachers there is an impression in the case of learning Social Sciences, and Geography in particular that these sciences are not useful for the explanation of socio-environmental and daily problems. In this research, improvement proposals are sought so that students are motivated to learn about these problems. Based on two case studies such as flood risks (and their relationship with climate change) and the problems of the rural areas, the possibilities of combining motivation for learning close to personal emotions and with their own rigor have been explored of the conceptual explanation. To validate these results, quantitative and qualitative research t…
Responsabilità degli intermediari di Internet e nuovi obblighi di conformazione: robo-takedown, policy of termination, notice and take steps
2017
Internet service provider liability and new duties: robo-takedown, policy of termination, notice and take steps The essay — after clarifying the outlines of the two main “safe harbor” provisions which limit the liability of online service providers as regards copyright infringement in the Western Legal Tradition, namely the U.S. section 512 of the Digital Millennium Copyright Act and articles 12 through 15 of the EU Directive on e-commerce — enquires the way in which the most recent case-law, respectively that of the U.S. Federal Courts and of the European Court of Justice, is enhancing the standard of protection and the enforcement of intellectual property rights. Indeed, both the Digital …
La rappresentazione digitale per l’accessibilità al patrimonio culturale
2021
Da diversi anni, la rappresentazione digitale ha assunto un ruolo fondamentale nel campo della valorizzazione del patrimonio culturale, introducendo nuove modalità operative. Allo stesso tempo e con frequenza sempre maggiore siti monumentali, musei e istituzioni culturali si avvalgono di applicazioni e installazioni che, grazie all’impiego di tecnologie di uso comune, adoperano il linguaggio multimediale per consentire l’accessibilità virtuale ai Beni Culturali. Questo contributo racconta brevemente alcuni esempi di approcci e applicazioni pensati per assicurare accessibilità tattile, sonora o virtuale a un’utenza ampia e variegata. Sono qui analizzati approcci differenti che favoriscono il…
Sparse Image Representation by Directionlets
2010
Despite the success of the standard wavelet transform (WT) in image processing in recent years, the efficiency and sparsity of its representation are limited by the spatial symmetry and separability of its basis functions built in the horizontal and vertical directions. One-dimensional discontinuities in images (edges or contours), which are important elements in visual perception, intersect too many wavelet basis functions and lead to a non-sparse representation. To capture efficiently these elongated structures characterized by geometrical regularity along different directions (not only the horizontal and vertical), a more complex multidirectional (M-DIR) and asymmetric transform is requi…
Using discourse segmentation to account for the polyfunctionality of discourse markers:The case of well
2021
Abstract A large number of studies describe the many different functions of polyfunctional discourse markers like well in different contexts and from different theoretical perspectives. In the current paper, we propose to systematize the many different uses identified based on their position with respect to the discourse units they are associated with. Not only can previous findings on well be integrated into a single coherent representation of its uses and functions, but the positions with respect to the discourse units can also be associated with specific functions, thus shedding light on how the polyfunctionality of well is brought about.
Simple and semisimple Lie algebras and codimension growth
1999
Irreducible finitary Lie algebras over fields of positive characteristic
2000
A Lie subalgebra L of [gfr ][lfr ][ ](V) is said to be finitary if it consists of elements of finite rank. We study the situation when L acts irreducibly on the infinite-dimensional vector space V and show: if Char [ ] > 7, then L has a unique minimal ideal I. Moreover I is simple and L/I is solvable.