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  • 1.
    Joelsson, Linda
    Stockholm University, Faculty of Humanities, Department of Spanish, Portuguese and Latin American Studies.
    ¿Cómo se expresa el desacuerdo en la conversación coloquial?: un estudio comparativo de conversaciones coloquiales entre jóvenes suecos y españoles.2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [es]

    El objetivo del presente estudio es comparar la expresión del desacuerdo en dos conversaciones coloquiales, una española y una sueca. Partimos de la hipótesis de que los españoles en mayor grado que los suecos, expresan el desacuerdo claramente mediante estilos y recursos argumentativos que pueden ser interpretados como francos y que pueden hacer que corran riesgos de causar un conflicto entre los interlocutores. En lo que concierne a los suecos suponemos que utilizan, en mayor grado que los españoles, formas mitigadas de articular el desacuerdo, a fin de evitar conflictos.

    El estudio lo realizamos de forma cualitativa y cuantitativa mediante el análisis de las conversaciones. Los desacuerdos encontrados los analizamos cualitativamente clasificando cada uno por el estilo argumentativo y el recurso argumentativo usado al expresarlos. A continuación, para poder realizar una comparación entre las conversaciones, aplicamos el método cuantitativo. Al comparar los resultados cuantitativos de las conversaciones, nos fijamos en las formas más usadas en cada conversación y pretendemos mostrar algunos vínculos entre el uso y la imagen básica de cada cultura. Posteriormente discutimos el grado de franqueza que tienen los estilos argumentativos y recursos argumentativos empleados en las conversaciones, con el propósito de poder concluir en qué conversación, de las dos estudiadas, hay más grado de franqueza en la expresión del desacuerdo.

     La hipótesis defiende que existe una diferencia del grado de franqueza al expresar el desacuerdo en las conversaciones. Sin embargo, la diferencia no es tan grande como nos esperábamos, teniendo en cuenta la imagen básica de las dos culturas.

  • 2.
    Smolentzov, Andre
    Stockholm University, Faculty of Humanities, Department of Linguistics, Computational Linguistics.
    Automated Essay Scoring: Scoring Essays in Swedish2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Good writing skills are essential in the education system at all levels. However, the evaluation of essays is labor intensive and can entail a subjective bias. Automated Essay Scoring (AES) is a tool that may be able to save teacher time and provide more objective evaluations. There are several successful AES systems for essays in English that are used in large scale tests. Supervised machine learning algorithms are the core component in developing these systems.

    In this project four AES systems were developed and evaluated. The AES systems were based on standard supervised machine learning software, i.e., LDAC, SVM with RBF kernel, polynomial kernel and Extremely Randomized Trees. The training data consisted of 1500 high school essays that had been scored by the students' teachers and blind raters. To evaluate the AES systems, the agreement between blind raters' scores and AES scores was compared to agreement between blind raters' and teacher scores. On average, the agreement between blind raters and the AES systems was better than between blind raters and teachers. The AES based on LDAC software had the best agreement with a quadratic weighted kappa value of 0.475. In comparison, the teachers and blind raters had a value of 0.391. However the AES results do not meet the required minimum agreement of a quadratic weighted kappa of 0.7 as defined by the US based nonprofit organization Educational Testing Services.

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