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The present paper reports the first results of the compilation and annotation of a blog corpus for German. The main aim of the project is the representation of the blog discourse structure and relations between its elements (blog posts, comments) and participants (bloggers, commentators). The data included in the corpus were manually collected from the scientific blog portal SciLogs. The feature catalogue for the corpus annotation includes three types of information which is directly or indirectly provided in the blog or can be construed by means of statistical analysis or computational tools. At this point, only directly available information (e.g. title of the blog post, name of the blogger etc.) has been annotated. We believe, our blog corpus can be of interest for the general study of blog structure or related research questions as well as for the development of NLP methods and techniques (e.g. for authorship detection).
Annotating Discourse Relations in Spoken Language: A Comparison of the PDTB and CCR Frameworks
(2016)
In discourse relation annotation, there is currently a variety of different frameworks being used, and most of them have been developed and employed mostly on written data. This raises a number of questions regarding interoperability of discourse relation annotation schemes, as well as regarding differences in discourse annotation for written vs. spoken domains. In this paper, we describe ouron annotating two spoken domains from the SPICE Ireland corpus (telephone conversations and broadcast interviews) according todifferent discourse annotation schemes, PDTB 3.0 and CCR. We show that annotations in the two schemes can largely be mappedone another, and discuss differences in operationalisations of discourse relation schemes which present a challenge to automatic mapping. We also observe systematic differences in the prevalence of implicit discourse relations in spoken data compared to written texts,find that there are also differences in the types of causal relations between the domains. Finally, we find that PDTB 3.0 addresses many shortcomings of PDTB 2.0 wrt. the annotation of spoken discourse, and suggest further extensions. The new corpus has roughly theof the CoNLL 2015 Shared Task test set, and we hence hope that it will be a valuable resource for the evaluation of automatic discourse relation labellers.
In this paper, we describe preliminary results from an ongoing experiment wherein we classify two large unstructured text corpora—a web corpus and a newspaper corpus—by topic domain (or subject area). Our primary goal is to develop a method that allows for the reliable annotation of large crawled web corpora with meta data required by many corpus linguists. We are especially interested in designing an annotation scheme whose categories are both intuitively interpretable by linguists and firmly rooted in the distribution of lexical material in the documents. Since we use data from a web corpus and a more traditional corpus, we also contribute to the important field of corpus comparison and corpus evaluation. Technically, we use (unsupervised) topic modeling to automatically induce topic distributions over gold standard corpora that were manually annotated for 13 coarse-grained topic domains. In a second step, we apply supervised machine learning to learn the manually annotated topic domains using the previously induced topics as features. We achieve around 70% accuracy in 10-fold cross validations. An analysis of the errors clearly indicates, however, that a revised classification scheme and larger gold standard corpora will likely lead to a substantial increase in accuracy.
Lexicography of Language Contact: An Internet Dictionary of Words of German Origin in Tok Pisin
(2016)
The paper presents an ongoing project in the domain of lexicography of language contact, namely, the “Internet Dictionary of Words of German Origin in Tok Pisin”. The German influence onto the lexicon of the main pidgin language of Papua New Guinea has its roots in the German colonial empire, where Tok Pisin played an important role as a lingua franca in the colony of German New Guinea. Tok Pisin also served as an intermediate language for many borrowing processes; that is, German loans entered many languages in the South Pacific via Tok Pisin. The Internet Dictionary of Words of German Origin in Tok Pisin is based on all available lexicographical sources from the early 20th century up to now. These sources are systematically evaluated within our project; the results will be documented in the dictionary. The microstructure of the dictionary will be presented with respect to its major features: documentation of sources, examples for word usage, audio files, and lexicographic comment.
Präposition-Substantiv-Verbindungen mit rekurrentem Nullartikel in adverbialer Verwendung – z.B. nach Belieben, auf Knopfdruck, ohne Ende oder bei Nacht – sind ein in der Mehrwortforschung bisher eher vernachlässigter Typ. Sie sind Untersuchungsgegenstand des laufenden Forschungsprojekts „Präpositionale Wortverbindungen kontrastiv“ (beteiligte Institutionen: IDS Mannheim, Universität Santiago de Compostela, Universität Trnava), in das wir in unserem Vortrag einen Einblick vermitteln. Es wird skizziert, wie sich solche Wortverbindungen sowie abstraktere präpositionale Wortverbindungsmuster vom Typ [in + SUBX-Zeit(en) (z.B. in Echtzeit, in Krisenzeiten) aus kontrastiver Sicht (Deutsch – Spanisch – Slowakisch) korpusbasiert untersuchen und lexikografisch beschreiben lassen. Von großem Interesse – gerade auch für Fremdsprachenlerner – sind dabei insbesondere die semantisch-funktionalen Restriktionen, denen solche Entitäten unterliegen. Basierend auf den theoretischen und empirischen Grundannahmen des am IDS entwickelten Modells „Usuelle Wortverbindungen“ (vgl. Steyer 2013) werden im Projekt zunächst Kollokations- und Kotextmuster für die binären deutschen Mehrworteinheiten induktiv in sehr großen Korpora ermittelt; im Anschluss werden sie einem systematischen Vergleich mit dem Spanischen und Slowakischen unterzogen. Methodisch greifen wir – in allen drei Sprachen – u.a. auf Kookkurrenzprofile zu den Wortverbindungen sowie auf Slotanalysen zu definierten Suchmustern zurück. Ziel des Projekts ist u.a. die Entwicklung eines neuartigen Prototyps für eine multilinguale Aufbereitung des Untersuchungsgegentands (speziell für Fremdsprachenlerner).
The Online Bibliography of Electronic Lexicography (OBELEXmeta) is a bibliographic database which is developed for researchers working in the field of dictionary research. The platform is hosted at the Institute for the German Language (Institut für Deutsche Sprache, IDS) in Mannheim. The poster presentation aims at presenting the current status of the ongoing project.
The wdlpOst dictionary writing system to be presented in this paper has been developed for the specific purposes of a lexicographical project on German loanwords in the East Slavic languages Russian, Belarusian, and Ukrainian. The project’s main objectives are (i) to document those loanwords for which a cognate lexical borrowing from German is known in Polish and (ii) to establish possible borrowing pathways for these lexical items. In the first phase of the project, the collaborative client/server architecture of the wdlpOst system has been used for excerpting detailed lexicographical information from a large range of historical and contemporary East Slavic dictionaries, taking the entries in a large dictionary of German loanwords in Polish as a common frame of reference. For the project’s second phase, the wdlpOst system provides innovative tooling for compiling entries of the East Slavic loanwords. Most importantly, the numerous word sense definitions for a set of cognate loanwords, as excerpted from different lexicographical sources, are mapped onto a system of newly defined cross-language word senses; in a similar vein, the phonemic and graphemic variation in the loanwords and their derivatives is captured through a tool that abstracts from dictionary-specific idiosyncrasies.