1,721,166 research outputs found
Feature engineering for author profiling and identification: on the relevance of syntax and discourse
No full textAuthor profiling and identification are two areas of data-driven computational linguistics that have gained a lot of relevance due to their potential applications in, e.g., forensic linguistic studies, marketing analysis, and historic/literary authorship verification. Author profiling aims to identify demographic traits of the authors, while author identification aims to identify the authors themselves by searching for distinctive linguistic patterns that distinguish them. The majority of approaches in the related work tends to focus on the content of the texts. We argue that focusing on structure rather than content can be more effective. The main focus of the thesis is thus on feature engineering, the development, evaluation and application of the feature set in the context of machine learning techniques to author profiling and identification. We prove the profiling potential of syntactic and iscourse features, which achieve state-of-the-art performance in many different scenarios, especially when combined with other features.El perfilament i la identificació d’autors són camps de la lingüística computacional que han guanyat rellevància als últims anys gràcies a les seves potencials aplicacions al camp de la lingüística forense o a la verificació d’autoria de textos històrics. El perfilament d’autors té com a objectiu identificar trets demogràfics dels autors; la identificació d’autors tracta d’identificar l’autor del text. Per fer-ho, es busquen automàticament patrons lingüístics per diferenciar entre autors/trets demogràfics. La majoria de treballs anteriors, es centren en el contingut dels texts. Nosaltres argumentem que analitzar l’estructura del text pot ser una alternativa més efectiva. El focus d’aquesta tesi està per tant, al feature engineering: la extracció avaluació i utilització d’un conjunt de característiques lingüístiques amb algoritmes d’aprenentatge automàtic per a perfilar/identificar autors. Demostrem que les característiques sintàctiques i discursives són rellevants i que combinades amb altres, obtenen resultats a l’altura de l’estat de l’art.Programa de doctorat en Tecnologies de la Informació i les Comunicacion
Feature engineering for author profiling and identification: on the relevance of syntax and discourse
Full text linkAuthor profiling and identification are two areas of data-driven computational linguistics that have gained a lot of relevance due to their potential applications in, e.g., forensic linguistic studies, marketing analysis, and historic/literary authorship verification. Author profiling aims to identify demographic traits of the authors, while author identification aims to identify the authors themselves by searching for distinctive linguistic patterns that distinguish them. The majority of approaches in the related work tends to focus on the content of the texts. We argue that focusing on structure rather than content can be more effective. The main focus of the thesis is thus on feature engineering, the development, evaluation and application of the feature set in the context of machine learning techniques to author profiling and identification. We prove the profiling potential of syntactic and iscourse features, which achieve state-of-the-art performance in many different scenarios, especially when combined with other features.El perfilament i la identificació d’autors són camps de la lingüística computacional que han guanyat rellevància als últims anys gràcies a les seves potencials aplicacions al camp de la lingüística forense o a la verificació d’autoria de textos històrics. El perfilament d’autors té com a objectiu identificar trets demogràfics dels autors; la identificació d’autors tracta d’identificar l’autor del text. Per fer-ho, es busquen automàticament patrons lingüístics per diferenciar entre autors/trets demogràfics. La majoria de treballs anteriors, es centren en el contingut dels texts. Nosaltres argumentem que analitzar l’estructura del text pot ser una alternativa més efectiva. El focus d’aquesta tesi està per tant, al feature engineering: la extracció avaluació i utilització d’un conjunt de característiques lingüístiques amb algoritmes d’aprenentatge automàtic per a perfilar/identificar autors. Demostrem que les característiques sintàctiques i discursives són rellevants i que combinades amb altres, obtenen resultats a l’altura de l’estat de l’art.Programa de doctorat en Tecnologies de la Informació i les Comunicacion
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Non-projectivity in the Ancient Greek Dependency Treebank
No full textIn this paper, we provide a quantitative
analysis of non-projective constructions
attested in the Ancient Greek Dependency
Treebank (AGDT).We consider the different
types of formal constraints and metrics
that have become standardized in the literature
on non-projectivity (planarity, wellnestedness,
gap-degree, edge-degree). We
also discuss some of the linguistic factors
that cause non-projective edges in Ancient
Greek. Our results confirm the remarkable
extension of non-projectivity in the
AGDT, both in terms of quantitative incidence
of non-projective nodes and for their
complexity, which is not paralleled by the
corpora of modern languages considered
in the literature. At the same time, the
usefulness of other constraint (especially
well-nestedness) is confirmed by our researches
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
