Revisiting Cross-document Structure Theory for multi-document discourse parsing     

Erick Galani Maziero  Maria Lucía del Rosário Castro Jorge  Thiago Alexandre Salgueiro Pardo 《Information processing & management》2014

Multi-document discourse parsing aims to automatically identify the relations among textual spans from different texts on the same topic. Recently, with the growing amount of information and the emergence of new technologies that deal with many sources of information, more precise and efficient parsing techniques are required. The most relevant theory to multi-document relationship, Cross-document Structure Theory (CST), has been used for parsing purposes before, though the results had not been satisfactory. CST has received many critics because of its subjectivity, which may lead to low annotation agreement and, consequently, to poor parsing performance. In this work, we propose a refinement of the original CST, which consists in (i) formalizing the relationship definitions, (ii) pruning and combining some relations based on their meaning, and (iii) organizing the relations in a hierarchical structure. The hypothesis for this refinement is that it will lead to better agreement in the annotation and consequently to better parsing results. For this aim, it was built an annotated corpus according to this refinement and it was observed an improvement in the annotation agreement. Based on this corpus, a parser was developed using machine learning techniques and hand-crafted rules. Specifically, hierarchical techniques were used to capture the hierarchical organization of the relations according to the proposed refinement of CST. These two approaches were used to identify the relations among texts spans and to generate multi-document annotation structure. Results outperformed other CST parsers, showing the adequacy of the proposed refinement in the theory.  相似文献   

Self-protection profiles of worth and academic goals in university students     

Ferradás  María del Mar  Freire  Carlos  Núñez  José Carlos 《European Journal of Psychology of Education - EJPE》2017,32(4):669-686

European Journal of Psychology of Education - This work analyzes the possible existence of self-protection profiles based on a combination of self-handicapping (behavioral and claimed) strategies...  相似文献   

Selectivity nomographs for classical filters     

Claude S. Lindquist  Celestino A. Corral 《Journal of The Franklin Institute》2002,339(1):61-76

Nomographs for determining the filter order of classical filters based on selectivity requirements are presented. The selectivities for a variety of standard classical filters are summarized in equation form and the general selectivity nomograph is constructed. The selectivity equations are then converted into nomograph form by applying the relationship between the transfer function and the response slope. Design examples are presented to demonstrate the usefulness of the selectivity nomographs. These nomographs can be used to gauge filter performance and combined with optimization techniques can yield superior classical filter designs.  相似文献   

Technologies in the education of children and teenagers with autism: evaluation and classification of apps by work areas     

Gallardo-Montes  Carmen del Pilar  Caurcel Cara  María Jesús  Rodríguez Fuentes  Antonio 《Education and Information Technologies》2022,27(3):4087-4115

Education and Information Technologies - Mobile apps represent a resource with great potential for encouraging the development of many skills, given the high number of apps available and the quick...  相似文献   

A comparison of time-motion performance between age groups in judo matches     

Miarka B  Panissa VL  Julio UF  Del Vecchio FB  Calmet M  Franchini E 《Journal of sports sciences》2012,30(9):899-905

The aim of this study was to compare time-motion indicators during judo matches performed by athletes from different age groups. The following age groups were analysed: Pre-Juvenile (13-14 years, n = 522), Juvenile (15-16 years, n = 353); Junior (19 years, n = 349) and Senior (>20 years, n = 587). The time-motion indicators included: Total Combat Time, Standing Combat Time, Displacement Without Contact, Gripping Time, Groundwork Combat Time and Pause Time. Analysis of variance (ANOVA) one-way and the Tukey test, as well as the Kruskal-Wallis test and Mann-Whitney (for non-parametric data), were conducted, using P < 0.05 as significance level. The results showed that all analysed groups obtained a median of 7 (first quantile - 3, third quantile - 12) sequences of combat/pause cycles. In total time of combat, the result was: for Total Combat Time, Standing Combat Time and Gripping Time: Pre-Juvenile and Senior were significantly longer than Juvenile and Junior. Considering Displacement Without Contact, Junior was significantly longer than all other age groups. For Groundwork Combat Time, Senior was significantly longer than all other age groups and Pre-Juvenile was longer than Junior. These results can be used to improve the physiological performance in intermittent practices, as well as technical-tactical training during judo sessions.  相似文献   

From faculty for undergraduate neuroscience: encouraging innovation in undergraduate neuroscience education by supporting student research and faculty development     

Hardwick JC  Kerchner M  Lom B  Ramirez JJ  Wiertelak EP 《CBE life sciences education》2006,5(2):86-90

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¿Usos cotidianos o usos enlatados? Enseñar y evaluar la lectoescritura a sujetos reales y mentes flexibles     

Pablo del Río 《Cultura y Educación》2013,25(19-20):5-24

En el campo del lenguaje y la lectoescritura, la renovación educativa parece estar situándose en la batalla por el diseño abierto y la evaluación informal. En este artículo se propone un modelo teórico para la lectoescritura flexible que pueda soportar las posibilidades que se abren y evitar los inconvenientes que amenazan a los actuales métodos informales de renovación a los que está dedicado el tema central de este número.  相似文献   

English or Nothing: The Impact of Rigid Language Policies on the Inclusion of Humanizing Practices in a High School ESL Program     

María del Carmen Salazar 《Equity & Excellence in Education》2013,46(3):341-356

This article discusses the results of a qualitative case study that examined how school district language policies impact humanizing practices in a high school ESL program. The theoretical framework builds on Paulo Freire's concept of humanizing pedagogy to explore policy and instruction in a secondary ESL program. Participants of this study include school district officials and high school ESL teachers. Findings indicate that when ESL teachers adhere to rigid language policies, they fail to create humanizing practices in their classrooms. In contrast, when teachers do not hold themselves strictly accountable to the institutionalized discourse of ESL, they are able to enact humanizing practices where students' linguistic and cultural resources are validated as essential for the development of academic resiliency. Paradoxically, even teachers who enact humanizing practices fail to question district language policies that render students cultural and linguistic resources invalid.  相似文献   

‘Teaching between the lines’: discussing,interpreting and writing stories together / ‘El aula entre líneas’: hablamos,interpretamos y escribimos historias conjuntamente     

Belén Izquierdo-Magaldi  Pilar Lacasa  Héctor del Castillo 《Cultura y Educación》2013,25(3):535-556

Abstract

The purpose of our study was to carry out a writing workshop in a collaborative setting in which the teacher and the 14 year-old students made up stories while being observed by a researcher. We used a qualitative methodology similar to the Ethnography of Communication and Discourse Analysis, in which narrative and analytical analyses are seen as complementary, in order to interpret all aspects of the participants’ activities. The analysis of the conversations held in the different working situations defined by the presence or absence of the teacher shows that the guiding role played by the teacher is essential in terms of the students’ acquisition of knowledge concerning the generalization of meanings, the organization of social relations and the structuring of the task. Likewise, within a group of peers involved in working towards a common goal, one or several of them tend to take on the guiding role when the teacher is not present.  相似文献   

Adaptation and evaluation of a learning analytics dashboard to improve academic support at three Latin American universities     

Julio Guerra  Margarita Ortiz-Rojas  Miguel Angel Zúñiga-Prieto  Eliana Scheihing  Alberto Jiménez  Tom Broos  Tinne De Laet  Katrien Verbert 《British journal of educational technology : journal of the Council for Educational Technology》2020,51(4):973-1001

Despite the success of academic advising dashboards in several higher educational institutions (HEI), these dashboards are still under-explored in Latin American HEI's. To close this gap, three different Latin American universities adapted an existing advising dashboard, originally deployed at the KU Leuven to their own context. In all three cases, the context was the main ruling factor to these adaptations. In this paper, we describe these adaptions using a framework that focuses on four different elements of the context: Objectives, Stakeholders, Key moment and Interactions. Evaluation of the adapted dashboards in the three different Latin American universities is conducted through pilots. This evaluation shows the value of the dashboard approach in different contexts in terms of satisfaction, usefulness and impact in academic decision-making and advising tasks. The main contribution of this paper is the systematic reporting of the adaptations to an academic advising dashboard and showing the value of an academic advising dashboard on academic decision-making and advising tasks.  相似文献