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This paper presents the application of the <tiger2/> format to various linguistic scenarios with the aim of making it the standard serialisation for the ISO 24615 [1] (SynAF) standard. After outlining the main characteristics of both the SynAF metamodel and the <tiger2/> format, as extended from the initial Tiger XML format [2], we show through a range of different language families how <tiger2/> covers a variety of constituency and dependency based analyses.
XML has been designed for creating structured documents, but the information that is encoded in these structures are, by definition, out of scope for XML. Additional sources, normally not easily interpretable by computers, such as documentation are needed to determine the intention of specific tags in a tag-set. The Component Metadata Infrastructure (CMDI) takes a rather pragmatic approach to foster interoperability between XML instances in the domain of metadata descriptions for language resources. This paper gives an overview of this approach.
We present SPLICR, the Web-based Sustainability Platform for Linguistic Corpora and Resources. The system is aimed at people who work in Linguistics or Computational Linguistics: a comprehensive database of metadata records can be explored in order to find language resources that could be appropriate for one’s spe cific research needs. SPLICR also provides a graphical interface that enables users to query and to visualise corpora. The project in which the system is developed aims at sustainably archiving the ca. 60 language resources that have been constructed in three collaborative research centres. Our project has two primary goals: (a) To process and to archive sustainably the resources so that they are still available to the research community in five, ten, or even 20 years time. (b) To enable researchers to query the resources both on the level of their metadata as well as on the level of linguistic annotations. In more general terms, our goal is to enable solutions that leverage the interoperability, reusability, and sustainability of heterogeneous collec- tions of language resources.
Co-reference annotation and resources: a multilingual corpus of typologically diverse languages
(2002)
This article introduces a dialogue corpus containing data from two typologically different languages, Japanese and Kilivila. The corpus is annotated in accordance with language specific annotation schemes for co-referential and similar relations. The article describes the corpus data, the properties of language specific co-reference in the two languages and a methodology for its annotation. Examples from the corpus show how this methodology is used in the workflow of the annotation process.
This paper describes a corpus of Japanese task-oriented dialogues, i.e. its data, annotations, analysis methodology and preliminary results for the modeling of co-referential phenomena. Current corpus based approaches to co-reference concentrate on textual data from English or other European languages. Hence, the emerging language-general models of co-reference miss input from dialogue data of non-European languages. We aim to fill this gap and contribute to a model of co-reference on various language-specific and language-general levels.
This paper proposes a methodology for querying linguistic data represented in different corpus formats. Examples of the need for queries over such heterogeneous resources are the corpus-based analysis of multimodal phenomena like the interaction of gestures and prosodic features, or syntax-related phenomena like information structure which exceed the expressive power of a tree-centered corpus format. Query languages (QLs) currently under development are strongly connected to corpus formats, like the NITE Object Model (NOM, Carletta et al., 2003) or the Meta-Annotation Infrastructure for ATLAS (MAIA, Laprun and Fiscus, 2002). The parallel development of linguistic query languages and corpus formats is due to the fact that general purpose query languages like XQuery (Boag et al., 2003) do not fulfill the changing needs of linguistically motivated queries, e.g. to give access to (non-)hierarchically organized, theory and language dependent annotations of multi modal signals and/or text. This leads to the problem that existing corpus formats and query languages are hard to reuse. They have to be re developed and re-implemented time-consumingly and expensively for unforeseen tasks. This paper describes an approach for overcoming these problems and a sample application.
This paper deals with the problem of how to interrelate theory-specific treebanks and how to transform one treebank format to another. Currently, two approaches to achieve these goals can be differentiated. The first creates a mapping algorithm between treebank formats. Categories of a source format are transformed into a target format via a given set of general or language-specific mapping rules. The second relates treebanks via a transformation to a general model of linguistic categories, for example based on the EAGLES recommendations for syntactic annotations of corpora, or relying on the HPSG framework. This paper proposes a new methodology as a solution for these desiderata.
This document presents ongoing work related to spoken language data within a project that aims to establish a common and unified infrastructure for the sustainable provision of linguistic primary research data at the Institut für Deutsche Sprache (IDS). In furtherance of its mission to “document the German language as it is currently used”, the project expects to enable the research community to access a broad empirical base of working material via a single platform. While the goal is to eventually cover all linguistically relevant digital resources of the IDS, including lexicographic information systems such as the IDS German Vocabulary Portal, OWID, written language corpora such as the IDS German Reference Corpus, DeReKo, and spoken language corpora such as the IDS German Speech Corpus for Research and Teaching, FOLK, the work presented here predominantly focuses on the latter type of data, i.e. speech corpora. Within this context, the present document pictures the project’s contributions to the development of standards and best practice guidelines concerning data storage, process documentation and legal issues for the sustainable preservation and long-term accessibility of primary linguistic research data.
Digital Text Collections, Linguistic Research Data, and Mashups: Notes on the Legal Situation
(2008)
Comprehensive data repositories are an essential part of practically all research carried out in the digital humanities nowadays. For example, library science, literary studies, and computational and corpus linguistics strongly depend on online archives that are highly sustainable and that contain not only digitized texts but also audio and video data as well as additional information such as metadata and arbitrary annotations. Current Web technologies, especially those that are related to what is commonly referred to as the Web 2.0, provide a number of novel functions such as multiuser editing or the inclusion of third-party content and applications that are also highly attractive for research applications in the areas mentioned above. Hand in hand with this development goes a high degree of legal uncertainty. The special nature of the data entails that, in quite a few cases, there are multiple holders of personal rights (mostly copyright) to different layers of data that often have different origins. This article discusses the legal problems of multiple authorships in private, commercial, and research environments. We also introduce significant differences between European and U.S. law with regard to the handling of this kind of data for scientific purposes.
Das vorliegende Papier fasst den bisherigen Diskussionsstand zur Konzeption eines Organisationsmodells für die institutionelle Verstetigung des Verbundforschungsprojektes TextGrid zusammen und bündelt die bisherigen Arbeitsergebnisse im Arbeitspaket 3 – Strukturelle und organisatorische Nachhaltigkeit. Das hier skizzierte Organisationsmodell basiert auf den in D-Grid und WissGrid erarbeiteten Nachhaltigkeitskonzepten und adaptiert das Konzept der Virtuellen Organisation (VO) für TextGrid. Insgesamt strebt TextGrid eine institutionelle Verstetigung seiner Aktivitäten nach Ende der Projektlaufzeit an und beabsichtigt gemeinsam mit Virtuellen Forschungsumgebungen aus anderen Wissenschaftsdisziplinen Wege und Prozesse etablieren zu können. Am 24./25. Februar 2011 hat TextGrid einen Strategie-Workshop in Berlin ausgerichtet, zu dem sich eine Expertenrunde zur „Nachhaltigkeit von Virtuellen Forschungsumgebungen“ eingefunden hat. Diskutiert werden wird, wie Virtuelle Forschungsumgebungen basierend auf heutigen finanziellen und organisatorischen Strukturen nachhaltig sein können und welche Empfehlungen sich daraus für TextGrid ableiten. Die Diskussionsergebnisse der Expertenrunde werden zusammen mit den Überlegungen in diesem Papier in die Konzeption eines umfassenderen Organisationsmodells einfließen, das die Grundlage für eine Verstetigung von TextGrid bilden wird.
This paper introduces the recently started DRuKoLA-project that aims at providing mechanisms to flexibly draw virtual comparable corpora from the German Reference Corpus DeReKo and the Reference Corpus of Contemporary Romanian Language CoRoLa in order to use these virtual corpora as empirical basis for contrastive linguistic research.
We describe a general two-stage procedure for re-using a custom corpus for spoken language system development involving a transformation from character-based markup to XML, and DSSSL stylesheet-driven XML markup enhancement with multiple lexical tag trees. The procedure was used to generate a fully tagged corpus; alternatively with greater economy of computing resources, it can be employed as a parametrised ‘tagging on demand’ filter. The implementation will shortly be released as a public resource together with the corpus (German spoken dialogue, about 500k word form tokens) and lexicon (about 75k word form types).
The aim of the paper is twofold. Firstly, an approach is presented how to select the correct antecedent for an anaphoric element according to the kind of text segments in which both of them occur. Basically, information on logical text structure (e.g. chapters, sections, paragraphs) is used in order to select the antecedent life span of a linguistic expression, i.e. some linguistic expressions are more likely to be chosen as an antecedent throughout the whole text than others. In addition, an appropriate search scope for an anaphora expressed by an expression can be defined according to the document structuring elements that include the linguistic expression. Corpus investigations give rise to the supposition that logical text structure influences the search scope of candidates for antecedents. Second, a solution is presented how to integrate the resources used for anaphora resolution. In this approach, multi-layered XML annotation is used in order to make a set of resources accessible for the anaphora resolution system.
Formalisierung von Kontext und sprachlichem Wissen mit Prioritisierter Circumscription (VM-Memo 55)
(1994)
This paper provides a new generation of a markup language by introducing the Freestyle Markup Language (FML). Demands placed on the language are elaborated, considering current standards and discussions. Conception, a grammatical definition, a corresponding object graph and the bi-directional unambiguous transformation between these two congruent representation forms are set up. The result of this paper is a fundamental definition of a completely new markup language, consolidating many deficiency-discourses and experiences into one particular implementation concept, encouraging the evolution of markup.
Der grammatiktheoretische Anteil des Linguistikstudiums und die damit verbundenen Forschungsfelder in verschiedenen Anwendungsgebieten sind heute an vielen Universitäten "ökumenisch" ausgerichtet. Das soll heißen, dass man sich - als Studierender wie als Wissenschaftler - nicht auf eine theoretische Schule einschwören muss, sondern mit verschiedenen Ansätzen experimentieren kann.
Research today is often performed in collaborated projects composed of project partners with different backgrounds and from different institutions and countries. Standards can be a crucial tool to help harmonizing these differences and to create sustainable resources. However, choosing a standard depends on having enough information to evaluate and compare different annotation and metadata formats. In this paper we present ongoing work on an interactive, collaborative website that collects information on standards in the field of linguistics as a means to guide interested researchers.
XML-based technologies offer powerful resources for open source applications in the field of e-learning. The paper describes a model of hypertext as interlinked structures that can be intertwined by cross-annotation linking. This infrastructure integrates multiple perspectives and allows creating a personal learning environment. We exemplify the approach in a case study: the Hamlet project. In the course of this project, several German translations of William Shakespeare’s Hamlet have been collected and annotated. Two different annotation layers are used to achieve a cross-linking reference between the various German translations. We will describe the theoretical background of cross-annotation linking and the actual technological implementation of the system. Additionally, we will use the personas method to gain insights into the potential benefit of the system as a personal learning environment.
Igel is a small XQuery-based web application for examining a collection of document grammars; in particular, for comparing related document grammars to get a better overview of their differences and similarities. In its initial form, Igel reads only DTDs and provides only simple lists of constructs in them (elements, attributes, notations, parameter entities). Our continuing work is aimed at making Igel provide more sophisticated and useful information about document grammars and building the application into a useful tool for the analysis (and the maintenance!) of families of related document grammars
This paper describes the effort of the Institut für Deutsche Sprache (IDS), the central research institution for the German language, connected with Information and Communications Technology (ICT). Use of ICT in a language research institute is twofold. On the one hand, ICT provides basic services for researches to accomplish their daily work. On the other hand, several national and international institutions have a strong interest in ICT. Therefore, ICT can also be seen as an amplifier for language research. The first part of this paper reports on the activates of the IDS in internal and external ICT-related projects and initiatives. The second part describes a general strategy towards an ICT strategy that could be useful both for the IDS and other national language institutes. We think such a general strategy is necessary to create a strong foundation not only for the ICT-related projects, but as a basis for a modem research institute.
KorAP is a corpus search and analysis platform, developed at the Institute for the German Language (IDS). It supports very large corpora with multiple annotation layers, multiple query languages, and complex licensing scenarios. KorAP’s design aims to be scalable, flexible, and sustainable to serve the German Reference Corpus DEREKO for at least the next decade. To meet these requirements, we have adopted a highly modular microservice-based architecture. This paper outlines our approach: An architecture consisting of small components that are easy to extend, replace, and maintain. The components include a search backend, a user and corpus license management system, and a web-based user frontend. We also describe a general corpus query protocol used by all microservices for internal communications. KorAP is open source, licensed under BSD-2, and available on GitHub.
In this paper we present an approach to faceted search in large language resource repositories. This kind of search which enables users to browse through the repository by choosing their personal sequence of facets heavily relies on the availability of descriptive metadata for the objects in the repository. This approach therefore informs the collection of a minimal set of metatdata for language resources. The work described in this paper has been funded by the EC within the ESFRI infrastructure project CLARIN.
Linguistische Korpora
(2004)
Making CONCUR work
(2005)
The SGML feature CONCUR allowed for a document to be simultaneously marked up in multiple conflicting hierarchical tagsets but validated and interpreted in one tagset at a time. Alas, CONCUR was rarely implemented, and XML does not address the problem of conflicting hierarchies at all. The MuLaX document syntax is a non-XML syntax that enables multiply-encoded hierarchies by distinguishing different “layers” in the hierarchy by adding a layer ID as a prefix to the element names. The IDs tie all the elements in a single hierarchy together in an “annotation layer”. Extraction of a single annotation layer results in a well-formed XML document, and each annotation layer may be associated with an XML schema. The MuLaX processing model works on the nodes of one annotation layer at a time through Xpath-like navigation. CONCUR lives!
Communication across all language barriers has long been a goal of humankind. In recent years, new technologies have enabled this at least partially. New approaches and different methods in the field of Machine Translation (MT) are continuously being improved, modified, and combined, as well. Significant progress has already been achieved in this area; many automatic translation tools, such as Google Translate and Babelfish, can translate not only short texts, but also complete web pages in real time. In recent years, new advances are being made in the mobile area; Googles Translate app for Android and iOS, for example, can recognize and translate words within photographs taken by the mobile device (to translate a restaurant menu, for instance). Despite this progress, a “perfect” machine translation system seems to be an impossibility because a machine translation system, however advanced, will always have some limitations. Human languages contain many irregularities and exceptions, and consequently go through a constant process of change, which is difficult to measure or to be processed automatically. This paper gives a short introduction of the state of the art of MT. It examines the following aspects: types of MT, the most conventional and widely developed approaches, and also the advantages and disadvantages of these different paradigms.
We present an approach on how to investigate what kind of semantic information is regularly associated with the structural markup of scientific articles. This approach addresses the need for an explicit formal description of the semantics of text-oriented XML-documents. The domain of our investigation is a corpus of scientific articles from psychology and linguistics from both English and German online available journals. For our analyses, we provide XML-markup representing two kinds of semantic levels: the thematic level (i.e. topics in the text world that the article is about) and the functional or rhetorical level. Our hypothesis is that these semantic levels correlate with the articles’ document structure also represented in XML. Articles have been annotated with the appropriate information. Each of the three informational levels is modelled in a separate XML document, since in our domain, the different description levels might conflict so that it is impossible to model them within a single XML document. For comparing and mining the resulting multi-layered XML annotations of one article, a Prolog-based approach is used. It focusses on the comparison of XML markup that is distributed among different documents. Prolog predicates have been defined for inferring relations between levels of information that are modelled in separate XML documents. We demonstrate how the Prolog tool is applied in our corpus analyses.
Linguistic corpora have been annotated by means of SGML-based markup languages for almost 20 years. We can, very roughly, differentiate between three distinct evolutionary stages of markup technologies. (1)Originally, single SGML tree-based document instances were deemed sufficient for the representation of linguistic structures. (2) Linguists began to realize that alternatives and extensions to the traditional model are needed. Formalisms such as, for example, NITE were proposed: the NITE Object Model (NOM) consists of multi-rooted trees. (3) We are now on the threshold of the third evolutionary stage: even NITE's very flexible approach is not suited for all linguistic purposes. As some structures, such as these, cannot be modeled by multi-rooted trees, an even more flexible approach is needed in order to provide a generic annotation format that is able to represent genuinely arbitrary linguistic data structures.
The paper discusses two topics: firstly an approach of using multiple layers of annotation is sketched out. Regarding the XML representation this approach is similar to standoff annotation. A second topic is the use of heterogeneous linguistic resources (e.g., XML annotated documents, taggers, lexical nets) as a source for semiautomatic multi-dimensional markup to resolve typical linguistic issues, dealing with anaphora resolution as a case study.
Overlap in markup occurs where some markup structures do not nest, such as where the structural division of the text into lists, sections, etc., differs from the syntactic division of the text into sentences and phrases. The Multiple Annotation solution to this problem (redundant encoding in multiple forms) has many advantages: it is based on XML, the modeling of alternative annotations is possible, each level can be viewed separately, and new levels can be added at any time. But it has the significant disadvantage of independence of the separate files. These multiply annotated files can be regarded as an interrelated unit, with the text serving as the implicit link. Two representations of the information contained in the multiple files (one in Prolog and one in XML) can be programmatically derived and used together for editing, for inference, or for unification of the multiply annotated documents.
In this paper, we present the Multiple Annotation approach, which solves two problems: the problem of annotating overlapping structures, and the problem that occurs when documents should be annotated according to different, possibly heterogeneous tag sets. This approach has many advantages: it is based on XML, the modeling of alternative annotations is possible, each level can be viewed separately, and new levels can be added at any time. The files can be regarded as an interrelated unit, with the text serving as the implicit link. Two representations of the information contained in the multiple files (one in Prolog and one in XML) are described. These representations serve as a base for several applications.
Im Zentrum der Dissertation steht der Begriff Informationsmodellierung oder genauer der Begriff der "textuellen Informationsmodellierung", wobei auf einer bereits vorgeschlagenen Unterscheidung einer primären und einer sekundären Ebene der Informationsstrukturierung aufgebaut wird. Der Gegenstand der primären Ebene sind die textuellen Daten selbst sowie ihre Strukturierung, wohingegen die sekundäre Ebene beschreibt, wie die für die primären Ebenen verwendeten Regelwerke mit alternativen Regelwerken in Beziehung gesetzt werden können. Der Einteilung in eine primäre und eine sekundäre Informationsstrukturierung wird in der Dissertation das Konzept der multiplen Informationsstrukturierung nebengeordnet. Dieses Konzept ist so zu verstehen, dass die primäre Ebene bei Bedarf vervielfacht wird - jedoch bezieht sich jede dieser Ebenen auf dieselbe Datengrundlage. Hierbei ergeben sich auch Auswirkungen auf die sekundäre Informationsstrukturierung. Die Informationsmodellierung erfolgt mit Auszeichnungssprachen. Die Standard Generalized Markup Language (SGML) stellt hierfür einen Rahmen dar, jedoch wurde dieser Formalismus seit seiner 1986 erfolgten Standardisierung nicht nur weiterentwickelt, sondern es wurde mit der Extensible Markup Language (XML) im Jahr 1998 eine wesentlich einfachere Untermenge dieser Sprache definiert, die zudem das derzeitige Zentrum weiterer Entwicklungen auf dem Gebiet der Auszeichnungssprachen darstellt. Der entwickelte Ansatz zur Modellierung linguistischer Information basiert auf der Extensible Markup Language (XML), wobei die weitergehenden Möglichkeiten von SGML selbstverständlich ebenfalls dargestellt und diskutiert werden. Mittels XML können Informationen, die sich nicht in bestimmten Hierarchien (mittels mathematischer Bäume) strukturieren lassen, nicht in einer natürlichen Weise repräsentiert werden. Eine Lösung dieses Problems liegt in der Aufteilung der Strukturierung auf verschiedene Ebenen. Diese neue Lösung wird dargestellt, diskutiert und modelliert.
In TextGrid gibt es verschiedene Content-Provider, deren Ressourcen nicht ohne weiteres in der TextGrid-Infrastruktur zur Verfügung gestellt werden können. Die Ursache hierfür ist, dass die erforderlichen Zugriffsbeschränkungen bislang nicht von der existierenden Autorisierungsinfrastruktur abgebildet werden können. Beispielsweise ist es für den Zugriff auf einige Ressourcen am Institut für Deutsche Sprache notwendig, dass Benutzer einen Lizenzvertrag akzeptieren. Um diesen Content-Providern die Bereitstellung ihrer Ressourcen in TextGrid zu ermöglichen, muss die bestehende Autorisierungsinfrastruktur erweitert werden, um feinere Zugriffsbeschränkungen zu ermöglichen.
Für die Lizenzierung der in TextGrid bereitgestellten Software und Daten wird künftig eine Lizenzierung benötigt, welche der offenen Struktur der angestrebten Forschungsplattform gerecht wird. Hierfür entwickelt AP 3.2 Musterlizenzvereinbarungen mit unterschiedlichen Content-Providern. Im Folgenden soll ein Überblick über unterschiedliche Möglichkeiten der Lizenzierung gegeben werden, um sowohl potenziell für TextGrid heranzuziehende Fremd-Software zu evaluieren als auch eine Orientierung für die Lizenzierung eigener Produkte und Daten zu geben. Letztendlich soll eine Empfehlung für ein möglicherweise in TextGrid angewandtes Modell gegeben werden.
Im zweiten Teil dieses Textes wird ein Konzept für die neue TextGrid-Middleware-Komponente TG-license vorgestellt, durch die auch lizensierter Content im Rahmen von TextGridRep zur Verfügung gestellt werden kann.
On the Lossless Transformation of Single-File, Multi-Layer Annotations into Multi-Rooted Trees
(2007)
The Generalised Architecture for Sustainability (GENAU) provides a framework for the transformation of single-file, multi-layer annotations into multi-rooted trees. By employing constraints expressed in XCONCUR-CL, this procedure can be performed lossless, i.e., without losing information, especially with regard to the nesting of elements that belong to multiple annotation layers. This article describes how different types of linguistic corpora can be transformed using specialised tools, and how constraint rules can be applied to the resulting multi-rooted trees to add an additional level of validation.
Grundlage dieses Artikels* 1 ist das Verbundprojekt „Nachhaltigkeit linguistischer Daten“ der drei Sonderforschungsbereiche 441, 538 und 632, dessen Ziel es ist, Lösungen für die nachhaltige Verfügbarkeit der an den SFBs vorhandenen Korpora zu entwickeln. Ein zentraler Aspekt betrifft die Klärung der Rechtslage für die Nutzung und Weitergabe linguistischer Ressourcen, die durch das Urheber- sowie das Datenschutzrecht geschützt sind. Eine als indifferent wahrgenommene rechtliche Situation wird in der Praxis oft als das entscheidende Hindernis für die Weitergabe linguistischer Daten angeführt. Tatsächlich jedoch sind Nutzung und Weitergabe von Daten zu wissenschaftlichen Zwecken normativ geregelt. Problematisch ist oftmals die Einordnung der speziellen linguistischen Daten als Schutzgegenstand sowie die Tatsache, dass an linguistische Daten und Datensammlungen aufgrund ihrer komplexen und vielschichtigen Beschaffenheit durchaus mehrere Urheber Rechte besitzen können, die sich auf verschiedene Inhalte beziehen. Der Beitrag gibt einen Überblick über das geltende Recht sowie die juristischen und natürlichen Personen, die potentiell Rechte an linguistisch aufbereiteten Datenkollektionen besitzen. Es ist nicht Gegenstand dieses Artikels, rechtsverbindliche Aussagen zu treffen, die auf eine Nutzung und Weitergabe jedweder Daten angewandt werden. Der Artikel orientiert sich in seiner Struktur und thematischen Tiefe bewusst nicht an einem juristischen Publikum, sondern beschreibt die Problematik aus geisteswissenschaftlicher Perspektive. Zusammen mit einem Überblick über das vom Umgang mit linguistischen Datensammlungen betroffene Recht, das Urheberrechtsgesetz (Abschnitt 1) und das Bundesdatenschutzgesetz (Abschnitt 2), wird in den jeweiligen Abschnitten auch eine Klassifikation der Daten aus juristischer Sicht vorgenommen. Anschließend werden Lösungsansätze vorgestellt, die im Rahmen des o. g. Verbundprojektes erarbeitet werden (Abschnitt 3).