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Precise multimodal studies require precise synchronisation between audio and video signals. However, raw audio and audio from video recordings can be out of sync for several reasons. In order to re-synchronise them, a dynamic programming (DP) approach is presented here. Traditionally, DP is performed on the rectangular distance matrix comparing each value in signal A with each value in signal B. Previous work limited the search space using for example the Sakoe Chiba Band (Sakoe and Chiba, 1978). However, the overall space of the distance matrix remains identical. Here, a tunnel matrix and its according DP-algorithm are presented. The matrix contains merely the computed distance of two signals to a pre-specified bandwidth and the computational cost is equally reduced. An example implementation demonstrates the functionality on artificial data and on data from real audio and video recordings.
Digressions
(2015)
Der Beitrag von Bruno Strecker Digressions ist auf Französisch geschrieben (der Muttersprache von Jacqueline Kubczak) und handelt von unterschiedlichen Exkursen. Er macht die Verbindung zwischen Kommunikationssituation und Arten der Exkurse sichtbar und bietet eine darauf basierende Typologie der Exkurse an. In einem zweiten Schritt werden die formalen Möglichkeiten, einen Exkurs einzuleiten und zu formulieren, dargestellt (z. B. durch Appositionen, Parenthesen, festgelegte Ausdrucksformen wie A propos xxx, Ça me rappelle oder nicht eingebettete Phrasen). Schließlich zeigt er, wie man aus dem Exkurs wieder „in die Spur“ kommt.
This chapter analyses the impact of political decentralization in a state on the position of ethnic and linguistic minorities, in particular with regard to the role of parliamentary assemblies in the political system. It relates a number of typical functions of parliaments to the specific needs of minorities and their languages. The most important of these functions are the representation of the minority and responsiveness to the minority’s needs. The chapter then discusses six examples from the European Union (and Norway) which prototypically represent different types of parliamentary decentralization: the ethnically defined Sameting in Norway and its importance for the Sámi population, the Scottish Parliament and its role for speakers of Scottish Gaelic, the German regional parliaments of the Länder of Schleswig-Holstein and Saxony and their impact on the Frisian and Sorbian minorities respectively, the autonomy of predominantly German-speaking South Tyrol within the Italian state, and finally the situation of the speakers of Latgalian in Latvia, where a decentralized parliament is missing. The chapter also makes suggestions on comparisons of these situations with minorities in Russia. It finally argues that political decentralization may indeed empower minorities to gain a greater voice in their states, even if much ultimately depends on individual factors in each situation and the attitudes by the majority population and the political center.
Im vorliegenden Beitrag soll gezeigt werden, wie Konnektoren als sprachliche Mittel zur Aktualisierung von zwei Arten konversationeller Aktivitäten eingesetzt werden können, nämlich von intersubjektiven bzw. gesprächsorganisatorischen Verfahren. Auf intersubjektive Verfahren greift ein Sprecher zurück, um in Kooperation mit seinem Gesprächspartner einen gemeinsamen Wissenshintergrund (common ground) zu schaffen. Durch gesprächsorganisatorische Verfahren greift der Sprecher in die gesprächsthematische Struktur des Interaktionsgeschehens ein. In diesem Beitrag wird die Aktualisierung dieser beiden konversationellen Verfahren am Beispiel der kommunikativen Gattung autobiographisches Interview betrachtet. Diese Gattung ist für eine solche Analyse m. E. besonders geeignet, denn sie zeichnet sich durch eine relativ scharfe Trennung der Gesprächsrollen aus, die das Nachvollziehen des Interaktionsgeschehens erleichtert. An einem autobiographischen Interview sind zwei Subjekte beteiligt: der Interviewte, der als Wissensträger gilt, und der Interviewer, der durch seine Rolle als Gesprächsleiter die Wissensvermittlung begünstigen soll. Der Interviewer ist also mit einer zweifachen Aufgabe konfrontiert, denn er muss die anfängliche Wissensasymmetrie ausgleichen und ist zugleich für die Gesprächsorganisation zuständig. Im Folgenden soll am Beispiel des Konjunktors und veranschaulicht werden, wie der Gebrauch von Konnektoren zur Bewältigung dieser beiden kommunikativen Aufgaben beitragen kann.
Using the Google Ngram Corpora for six different languages (including two varieties of English), a large-scale time series analysis is conducted. It is demonstrated that diachronic changes of the parameters of the Zipf–Mandelbrot law (and the parameter of the Zipf law, all estimated by maximum likelihood) can be used to quantify and visualize important aspects of linguistic change (as represented in the Google Ngram Corpora). The analysis also reveals that there are important cross-linguistic differences. It is argued that the Zipf–Mandelbrot parameters can be used as a first indicator of diachronic linguistic change, but more thorough analyses should make use of the full spectrum of different lexical, syntactical and stylometric measures to fully understand the factors that actually drive those changes.
We analyze the linguistic evolution of selected scientific disciplines over a 30-year time span (1970s to 2000s). Our focus is on four highly specialized disciplines at the boundaries of computer science that emerged during that time: computational linguistics, bioinformatics, digital construction, and microelectronics. Our analysis is driven by the question whether these disciplines develop a distinctive language use—both individually and collectively—over the given time period. The data set is the English Scientific Text Corpus (scitex), which includes texts from the 1970s/1980s and early 2000s. Our theoretical basis is register theory. In terms of methods, we combine corpus-based methods of feature extraction (various aggregated features [part-of-speech based], n-grams, lexico-grammatical patterns) and automatic text classification. The results of our research are directly relevant to the study of linguistic variation and languages for specific purposes (LSP) and have implications for various natural language processing (NLP) tasks, for example, authorship attribution, text mining, or training NLP tools.
Learning from Errors. Systematic Analysis of Complex Writing Errors for Improving Writing Technology
(2015)
In this paper, we describe ongoing research on writing errors with the ultimate goal to develop error-preventing editing functions in word-processors. Drawing from the state-of-the-art research in errors carried out in various fields, we propose the application of a general concept for action-slips as introduced by Norman. We demonstrate the feasibility of this approach by using a large corpus of writing errors in published texts. The concept of slips considers both the process and the product: some failure in a procedure results in an error in the product, i.e., is visible in the written text. In order to develop preventing functions, we need to determine causes of such visible errors.
In this article, we explore the feasibility of extracting suitable and unsuitable food items for particular health conditions from natural language text. We refer to this task as conditional healthiness classification. For that purpose, we annotate a corpus extracted from forum entries of a food-related website. We identify different relation types that hold between food items and health conditions going beyond a binary distinction of suitability and unsuitability and devise various supervised classifiers using different types of features. We examine the impact of different task-specific resources, such as a healthiness lexicon that lists the healthiness status of a food item and a sentiment lexicon. Moreover, we also consider task-specific linguistic features that disambiguate a context in which mentions of a food item and a health condition co-occur and compare them with standard features using bag of words, part-of-speech information and syntactic parses. We also investigate in how far individual food items and health conditions correlate with specific relation types and try to harness this information for classification.
Social perception studies have revealed that smiling individuals are perceived more favourably on many communion dimensions in comparison to nonsmiling individuals. Research on gender differences in smiling habits showed that women smile more than men. In our study, we investigated this phenomena further and hypothesised that women perceive smiling individuals as more honest than men. An experiment conducted in seven countries (China, Germany, Mexico, Norway, Poland, Republic of South Africa and USA) revealed that gender may influence the perception of honesty in smiling individuals. We compared ratings of honesty made by male and female participants who viewed photos of smiling and nonsmiling people. While men and women did not differ on ratings of honesty in nonsmiling individuals, women assessed smiling individuals as more honest than men did. We discuss these results from a social norms perspective.
This paper shows how understanding in interaction is informed by temporality, and in particular, by the workings of retrospection. Understanding is a temporally extended, sequentially organized process. Temporality, namely, the sequential relationship of turn positions, equips participants with default mechanisms to display understandings and to expect such displays. These mechanisms require local management of turn-taking to be in order, i.e., the possibility and the expectation to respond locally and reciprocally to prior turns at talk. Sequential positions of turns in interaction provide an infrastructure for displaying understanding and accomplishing intersubjectivity. Linguistic practices specialized in displaying particular kinds of (not) understanding are adapted to the individual sequential positions with respect to an action-to-be-understood.
The authors establish a phenomenological perspective on the temporal constitution of experience and action. Retrospection and projection (i.e. backward as well as forward orientation of everyday action), sequentiality and the sequential organization of activities as well as simultaneity (i.e. participants’ simultaneous coordination) are introduced as key concepts of a temporalized approach to interaction. These concepts are used to capture that every action is produced as an inter-linked step in the succession of adjacent actions, being sensitive to the precise moment where it is produced. The adoption of a holistic, multimodal and praxeological perspective additionally shows that action in interaction is organized according to several temporal orders simultaneously in operation. Each multimodal resource used in interaction has its own temporal properties.
Two very reliable influences on eye fixation durations in reading are word frequency, as measured by corpus counts, and word predictability, as measured by cloze norming. Several studies have reported strictly additive effects of these 2 variables. Predictability also reliably influences the amplitude of the N400 component in event-related potential studies. However, previous research suggests that while frequency affects the N400 in single-word tasks, it may have little or no effect on the N400 when a word is presented with a preceding sentence context. The present study assessed this apparent dissociation between the results from the 2 methods using a coregistration paradigm in which the frequency and predictability of a target word were manipulated while readers’ eye movements and electroencephalograms were simultaneously recorded. We replicated the pattern of significant, and additive, effects of the 2 manipulations on eye fixation durations. We also replicated the predictability effect on the N400, time-locked to the onset of the reader’s first fixation on the target word. However, there was no indication of a frequency effect in the electroencephalogram record. We suggest that this pattern has implications both for the interpretation of the N400 and for the interpretation of frequency and predictability effects in language comprehension.