Attention mechanisms in deep learning models for Twitter sentiment analysis

Sentiment Analysis on social media such as Twitter can provide us with valuable information about the users’ opinions. The singularities of these data lie in their short format and informal language. In the last years, Deep Learning models like Recurrent Neural Networks and Convolutional Neural Networks have been widely studied for this task reaching promising results when combined with word embedding mechanisms. In this master thesis, we go through the bases of Sentiment Analysis and Deep Neural Networks and then some Deep Learning models are presented. Pursuing improving the performance of these models, attention mechanisms like Self Attention of Transformer Encoder are presented and included in the models. The same dataset is used to train all the presented models in order to evaluate them and analyze the impact of including attention mechanisms on Deep Neural Networks in a Sentiment Analysis task

Problemas de rutas de vehículos e algoritmos de aforro: o algoritmo de Clarke and Wright

Traballo Fin de Grao en Matemáticas. Curso 2018-2019[GL] Os Problemas de Rutas de Vehículos (VRP) son un exemplo de problemas para os que moitas veces non é posible aplicar algoritmos que os resolvan en tempo polinomial, principalmente debido ao seu tamaño e á súa complexidade. Habitualmente para resolver exemplos deste tipo de problemas usaranse algoritmos heurísticos. Neste traballo presentamos o Problema do Viaxante de Comercio (TSP) para continuar cos Problemas de Rutas de Vehículos. A continuación enunciaremos o algoritmo heurístico proposto por Clarke and Wright para o VRP con restricións de capacidade. Finalmente contaremos cos datos dun problema de rutas da vida real que usaremos para comparar as solucións obtidas usando unha implementación en R do algoritmo de Clarke and Wright coa solución obtida a dito problema mediante a súa modelación con linguaxe AMPL.[EN] The Vehicle Routing Problems (VRP) are an example of problems where it can not be possible to apply an exact method to solve them in a polynomial time in many times due to their complexity or size. Frequently to solve examples of this kind of problems heuristic algorithms will be used. In this project we will first present the Travelling Salesman Problem (TSP) to continue with the Vehicle Routing Problems. Next, we will show the heuristic algorithm proposed by Clarke and Wright for Capacited VRP. Finally, based on a realworld problem, we will compare the solutions obtained by an R implementation of Clarke and Wright algorithm versus the results returned by an AMPL model used together with an exact optimization method

When TEI Verse becomes linked data: using TEI tags as a model to build a linked poetry system

The Text Encoding initiative is conceived as a standard system designed to let interoperability between different projects working on analogous topics. However, interoperability is sometimes not easy to reach due to the different interpretation of tags made by each project or group. Given the variety of tags, there are several concepts that can be easily identified for many projects, such as <msIdentifier> or <incipit>, which referent is pretty clear and recognizable. There are some other tags, however, which can experience multiple interpretations, limited by the content of the attributes that modify them

El exordio de los poemas romances en cuaderna vía. Nuevas claves para contextualizar la segunda estrofa del "Alexandre"

Los principios poéticos que rigen la estrofa de la cuaderna vía o tetrástico monorrimo de versos alejandrinos se han buscado tradicionalmente en los propios textos castellanos (como la segunda estrofa del Libro de Alexandre), a partir de los cuales se ha extraido toda la poética caracterizadora del llamado «mester de clerecía». Pocos han sido, sin embargo, los que se han adentrado a dar un paso más para comparar los poemas castellanos en cuaderna vía con sus homólogos romances o con sus predecesores latinos. En este trabajo nos ocupamos de realizar un estudio contrastivo entre los exordios en tetrásticos monorrimos de alejandrinos de los poemas castellanos, franceses, italianos y latinos, para enriquecer las perspectivas poéticas que definen nuestro mester y poder así contextualizar, delimitar y caracterizar los rasgos de una poesía narrativa de carácter panrománico, cuyas bases poéticas quedan sentadas ya en las estrofas mediolatinas, y en la que nuestros poemas castellanos se encuentran ubicados en un marco romance regido por principios poéticos comunes.The poetic principIes which rule the «cuaderna via» stanza or tetrastich of monorhymed alexandrines have been searched in Castilian texts (such as the second stanza of the Libro de Alexandre). The poetics of the socalled «mester de clerecía» has been extracted from those texts. There are few researchers, however, who have tried to step further to compare the Castilian poems written in «cuaderna vía» to their Romance counterparts or to their Latin predecessors. This work develops a contrastive study arnong the beginnings ofthe poems written in tetrastichs of monorhymed alexandrines in Castilian, French, Italian and Latin poems. This comparison will enrich the poetic perspectives which define our «mester» and will be able to contextualize, delirnitate and define the characteristics of a narrative panromanic poetry, whose poetic basis are already settled in Middle-Latin stanzas. Our Castilian poems are part of that panromanic panorama, which is ruled by the same poetic principles

LEVENTE SELÁF, PATRICIA NOEL AZIZ HANNA Y JOOST VAN DRIEL: Formes strophiques simples/Simple Strophic Patterns. Budapest: Akadémiai Kiadó, 2010.

LEVENTE SELÁF, PATRICIA NOEL AZIZ HANNA Y JOOST VANDRIEL: Formes strophiques simples/Simple Strophic Patterns.Budapest: Akadémiai Kiadó, 2010

Spanish CLARIN K-Centre

Presentamos CLARIN Centro-K-español que forma parte de la infraestructura europea CLARIN, Common Language Resources and Technology Infrastructure, y cuyo objetivo es ofrecer los conocimientos y experiencia de los tres grupos que inicialmente lo componen en la utilización de tecnología para la investigación en humanidades y ciencias sociales.We introduce Spanish CLARIN Centre-K, a node of the European infrastructure CLARIN, Common Language Resources and Technology, whose objective is to share knowledge and experience of the three funding constituent groups for research in humanities and social sciences

La edición digital de textos literarios: planteamientos y perspectivas de futuro

La edición digital de textos literarios se encuentra sumida en un proceso de evolución constante con amplísimas perspectivas de desarrollo gracias a las soluciones tecnológicas disponibles. Sin embargo, las posibilidades teóricas de la actual sociedad de la información contrastan ampliamente con el panorama real de edición que nos encontramos en España, donde la llamada “brecha digital” se hace patente. Este trabajo se ocupa, en primer lugar, de evaluar el panorama internacional de recursos, herramientas y proyectos en el ámbito de la edición digital de textos literarios para después analizar sus claves de evolución y otros aspectos relevantes, como el acceso a los contenidos en abierto, el uso de interfaces amigables y accesibles, el cumplimiento de los estándares, el trabajo interdisciplinar y la interoperabilidad. El objetivo fi nal de estos análisis y refl exiones es ofrecer nuevas pautas y perspectivas de futuro que trasciendan más allá del texto como mero objeto de estudio.Digital scholarly edition is conditioned by a continuous and challenging process of change due to the availability of many different technical solutions. However, those theoretical possibilities face with the real situation of editions in Spain, where the so-called “digital gap” grows constantly. This paper deals with the analysis of the international panorama of resources, tools and projects related to digital scholarly editions. Its objective is to study their ways of evolution and other relevant aspects, as open access, friendly interfaces, accessibility, standardization level, interdisciplinary work and interoperability. The fi nal aim of these analysis and refl ections is to offer new guidelines and perspectives for the future of the text, taking it further than a simple study object

ReMetCa: A Proposal for Integrating RDBMS and TEI-Verse

This paper describes the technical structure of the project ReMetCa (Repertorio Digital de Métrica Medieval Castellana), the first online repertoire of Medieval Spanish metrics and poetry. ReMetCa is based on the combination of traditional metrical and poetic studies (rhythm and rhyme patterns) with digital humanities technology, TEI-XML integrated into a Relational Database Management System (RDBMS) through an XMLType field, thus opening up the possibility of launching simultaneous searches and queries by using a searchable, user-friendly interface. The use of the TEI Verse module to tag metrical and poetic structures is especially important for two reasons: first, because it lets us tag different kinds of poems with a variable metadata structure, making it possible to express a very high level of detail for poetry description that cannot be registered in a conventional database; and second, as it enables extensibility and adds more information to enrich the conceptual model, which is under constant development