Search results for "feature"

Maldivas y el delicado equilibrio entre India y China

2019

Maldivas es la nación más pequeña de Asia Meridional en términos de población, superficie y PBI. A pesar de ello, este pequeño archipiélago tiene una gran importancia estratégica, en virtud de su ubicación en medio de las rutas marítimas internacionales del océano Índico, y en su cercanía a las costas de la India. La propuesta de este artículo es exponer los cambios que se produjeron en Maldivas durante la presidencia de Abdulla Yameen en cuanto a la política interna, como así también a las relaciones exteriores, y observar en qué momento estas dos tendencias se cruzan para formar parte de una misma trama. A su vez, analizar finalmente las consecuencias que esto tiene para el país y para la…

Feature selection for classification of music according to expressed emotion

2009

Retoriskie teksta posmi interneta ziņu rakstos

2016

Ziņas ir viena no svarīgākajām vajadzībām ikdienas dzīvē, lai sekotu līdzi pasaules notikumu attīstībai. Ir veikti vairāki avīžu rakstu pētījumi no dažādiem aspektiem, taču maz uzmanības tiek pievērsts retoriskajiem teksta posmiem avīžu rakstos, kas pieejami internetā, tādēļ šī darba mērķis ir izpētīt retoriskos teksta posmus un to attiecīgo soļus struktūru interneta ziņu rakstos un noteikt to lingvistiskās iezīmes. Darba analīzei, galvenokārt tika izmantotas tādu autoru kā Swales (1990)un Bhatia (1993) teorijas. Iegūtie dati tika analizēti, izmantojot kvalitatīvā pētījuma metodi ar kvantitatīviem elementiem. Analīzei tika izvēlēti divdesmit BBC biznesa interneta ziņu raksti. Pētījuma rezul…

Assessing the Open Trenches in Screening Railway Ground-Borne Vibrations by Means of Artificial Neural Network

2009

Reducing ground borne vibrations in urban areas is a very challenging task in railway transportation. Many mitigation measures can be considered and applied; among these open trenches are very effective. This paper deals with the study of the effect, in terms of reduction of vertical and horizontal displacements and velocities, of the open trenches. 2D FEM simulations have been performed and several open trench configurations have been analysed varying the main geometric features such as width and depth, distance from the rail, thickness of the soil layer over the rigid bedrock, type of the ground, ratio between the depth of the trench, and the thickness of the soil layer. For quantifying t…

Image classification based on 2D feature motifs

2013

The classification of raw data often involves the problem of selecting the appropriate set of features to represent the input data. In general, various features can be extracted from the input dataset, but only some of them are actually relevant for the classification process. Since relevant features are often unknown in real-world problems, many candidate features are usually introduced. This degrades both the speed and the predictive accuracy of the classifier due to the presence of redundancy in the candidate feature set. In this paper, we study the capability of a special class of motifs previously introduced in the literature, i.e. 2D irredundant motifs, when they are exploited as feat…

Guano-related phosphate-rich minerals in European caves

2019

International audience; Guano is a typical deposit found in caves derived from the excretions of bats and in minor cases of birds. These organic deposits decompose and form a series of acid fluids and gases that can interact with the minerals, sediments, and rocks present in the cave. Over sixty phosphates are known and described from caves, but guano decay also often leads to the formation of nitrates and sulfates. In this study twenty-two European caves were investigated for their guano-related secondary minerals. Using various analytical techniques, seventeen phosphates, along with one sulfate (gypsum), were recognized as secondary products of guano decay. Among those minerals, some are …

Physiological Measures Regress onto Acoustic and Perceptual Features of Soundscapes

2013

There is no exact model for the relationship between the autonomic nervous system (ANS) and evoked or perceived emotion. Music has long been a privileged field for exploration, while the contribution of soundscape research is more recent. It is known that health is influenced by the sonic environment, and the study here presented aimed to investigate the nature and strength of relationships between soundscape features and physiological responses linked to relaxation or stress. In a controlled experiment, seventeen healthy volun-teers moved freely inside a physical installation listening to soundscape recordings of nature, urban parks, eateries, and shops, reproduced using 3D ambisonic techn…

An Integrated Method for Image Retrieval

1995

This paper presents an information fusion method for image retrieval; the retrieval strategy is based on statistical and geometrical features extracted from sub-images. Our goal is to find a set of best similar images related to a prototype image; this goal may be obtained according to image content rather than symbolic attributes. MRI (Magnetic Resonance Imaging) images and astronomical images have been adopted to test the method. Main steps of the procedure to retrieve images are: (l) Segmentation, (2) Matching, and (3) Decision. The first step involves four clusters co-operating segmentation algorithms; in the matching step, a sets of candidate similar images is provided; finally an info…

Wetland Restoration with Hydrophytes: A Review

2021

Restoration cases with hydrophytes (those which develop all their vital functions inside the water or very close to the water surface, e.g., flowering) are less abundant compared to those using emergent plants. Here, I synthesize the latest knowledge in wetland restoration based on revegetation with hydrophytes and stress common challenges and potential solutions. The review mainly focusses on natural wetlands but also includes information about naturalized constructed wetlands, which nowadays are being used not only to improve water quality but also to increase biodiversity. Available publications, peer-reviewed and any public domain, from the last 20 years, were reviewed. Several countrie…

Deeds not words’: Emmeline Pankhurst and the vote for women

2013

Women born in the nineteenth century had little chance of escaping the role that was considered their destiny - to marry young, stay home and raise a family. Campaigners like Millicent Fawcett and Elizabeth Garret Anderson carried out a personal and largely peaceful struggle to improve chances of an education and open professions like medicine to women. In the early part of the century ‘the suffragists’ were unsuccessful in their immediate objective, although they still exist in the form of one of the British main research and lobbying groups working on behalf of women, the Fawcett Society. In 1889, an English woman Emmeline Pankhurst founded the Women's Franchise League, which fought to al…