187,420 research outputs found
Furioso
No full textĠabra ta’ poeżiji u proża li tinkludi: Kristu: Sultan tal-paċi u ta’ l-imħabba ta’ Annibale Preca – Sejħa t’Alla ta’ Ġ. Muscat-Azzopardi – L-aħħar kelma ta’ P. P. Saydon – Furioso ta’ Ġużi Abela.N/
Michel Azzopardi, Vingt ans dans un tunnel, le cinéma ouest-allemand de 1946 à 1986, 1987
No full textHugues Philippe d'. Michel Azzopardi, Vingt ans dans un tunnel, le cinéma ouest-allemand de 1946 à 1986, 1987. In: 1895, revue d'histoire du cinéma, n°3, 1987. p. 27
Ventral-stream-like shape representation: from pixel intensity values to trainable object-selective COSFIRE models
No full textThe remarkable abilities of the primate visual cortex have inspired the construction of computational models of some visual neurons. We propose a trainable hierarchical object recognition model, which we call S-COSFIRE (S stands for Shape and COSFIRE stands for Combination Of Shifted FIlter REsponses) and use it to localize and recognize objects of interests embedded in complex scenes. It is inspired by the visual processing in the ventral stream (V1/V2 -> V4 -> TEO). Recognition and localization of objects embedded in complex scenes is important for many computer vision applications. Most existing methods require prior segmentation of the objects from the background which on its turn requires recognition. A S-COSFIRE filter is automatically configured to be selective for an arrangement of contour-based features that belong to a prototype shape specified by an example. The configuration comprises selecting relevant vertex detectors and determining certain blur and shift parameters. The response is computed as the weighted geometric mean of the blurred and shifted responses of the selected vertex detectors. S-COSFIRE filters share similar properties with some neurons in inferotemporal cortex, which provided inspiration for this work. We demonstrate the effectiveness of S-COSFIRE filters in two applications: letter and keyword spotting in handwritten manuscripts and object spotting in complex scenes for the computer vision system of a domestic robot. S-COSFIRE filters are effective to recognize and localize (deformable) objects in images of complex scenes without requiring prior segmentation. They are versatile trainable shape detectors, conceptually simple and easy to implement. The presented hierarchical shape representation contributes to a better understanding of the brain and to more robust computer vision algorithms
Ġejja x-xita
No full textĠabra ta’ poeżiji u proża li tinkludi: Taqbida ta’ erwieħ fl-ajru ta’ P. P. Saydon – Mewt u xita ta’ Ivo Muscat-Azzopardi – Bews ta’ Dun Karm – Ġejja x-xita ta’ R. Mifsud Bonnici.N/
Using the quantum probability ranking principle to rank interdependent documents
No full textA known limitation of the Probability Ranking Principle (PRP) is that it does not cater for dependence between documents. Recently, the Quantum Probability Ranking Principle (QPRP) has been proposed, which implicitly captures dependencies between documents through “quantum interference”. This paper explores whether this new ranking principle leads to improved performance for subtopic retrieval, where novelty and diversity is required. In a thorough empirical investigation, models based on the PRP, as well as other recently proposed ranking strategies for subtopic retrieval (i.e. Maximal Marginal Relevance (MMR) and Portfolio Theory(PT)), are compared against the QPRP. On the given task, it is shown that the QPRP outperforms these other ranking strategies. And unlike MMR and PT, one of the main advantages of the QPRP is that no parameter estimation/tuning is required; making the QPRP both simple and effective. This research demonstrates that the application of quantum theory to problems within information retrieval can lead to significant improvements
Features of Two-Phase Gas/Liquid Flow at a Combining T Junction - Hold Up Profiles Around The Junction And Upstream Travelling Waves
No full textTwo-phase horizontal intermittent flow in straight pipes is experimentally investigated, by means of a new impedance meter able to collect void fraction data simultaneously at different pipe locations. The investigation is focused on the two-phase behaviour in the downstream region of pipe restrictions. Experiments on air-water horizontal flows in 40 mm inner diameter pipe are performed. The operating conditions cover the typical values for intermittent flow inception. The pipe restrictions are here realised by means of six different orifice plates, as combination of two restriction ratios and three orifice thicknesses. The measurement technique is based on the measurement of the mixture electrical impedance by means of ring electrodes, very close to the pipe throat section. The probe distances from pipe restriction are in the range of 0.7~2.3 pipe diameters. The new instrumentation allows void fraction data every 0.001 seconds to be collected, hence enabling the reconstruction of the time/space profile of the two-phase pattern (film thickness, slug front, slug tail) in presence of a sudden restriction. The measurements demonstrate that the restrictions generally induce a remarkable increase of the void fraction downstream values, which is associated to a reduction of the film thickness values in the stratified region
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Erġ’ibda għidli l-ħrejjef
No full textĠabra ta’ poeżiji u proża li tinkludi: Iżmerija ta’ F. Mangion – Ftietaq ċkejknin ta’ Ġer. Azzopardi – Bewstek ta’ Joseph Sciberras – Zorro ta’ J. P. Vassallo – Bħall-ward ta’ Joseph Sciberras – Lil ommi mejta ta’ Wallace Ph. Gulia – X’inhija l-ħajja ta’ Michael Agius – Xewqat ta’ Francis P. Mifsud – Dan il-programm ta’ Oliver Friggieri – Erġ’ibda għidli l-ħrejjef ta’ Oliver Friggieri.peer-reviewe
Formulating XML-IR Queries
No full textXML information retrieval systems differ from traditional information retrieval systems\ud
by returning relevant portions of documents, rather than entire documents.\ud
Theoretically, this should better fulfil the information needs of users, especially in\ud
situations where their information need is very complex. However, if users are going\ud
to exploit this advantage then they need a query formation interface that is both\ud
sophisticated and intuitive. This paper outlines four potential query formation\ud
interfaces: keywords, formal language, natural language and query by templates. For\ud
each interface it: outline the advantages and disadvantages, presents comparative\ud
results stemming from experiments and proposes several future research areas\ud
involving the four interfaces
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