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seminar

SEMINAR

 


Presentations by our new PhD-students.

 

Ann-Marie:

"The query, not the answer, is the answer"

By analyzing queries to medical journal databases and patient records we may be able to obtain clues to questioners´ knowledge and interests. In this presentation we will briefly outline present and future research on analysis of questioner behaviour, and how future research may help providing improved possibilities for knowledge sharing in the context of medical research and health care.

Carola:

I will give a short personal and professional presentation of myself. I will describe my general interests in the field of linguistics as well as a preliminary outline of my own research during the next 4-5 years. I will also present the graduate school to which I belong, which deals with the language within the disciplines of the Swedish education.

Grégoire:

Presenting the release of PhraseDroid - the first GF/MOLTO application on Android.

Taraka:

"Automated classification of languages using lexical similarity"

In this thesis, I explore various string similarity measures for automatic language classification into families. The datasets for this study consist of Swadesh word lists collected by the ASJP group for 3730 languages of the world. We will discuss some related work. We will talk about some preliminary results and the directions for the future research.

 

 

Also: Glögg!

Date: 2010-12-16 10:15 - 12:00

Location: L307, Lennart Torstenssonsgatan 8

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LekBot - A talking and playing robot for children with communicative disabilities

http://clt.gu.se/research/lekbot
Peter Ljunglöf, Fredrik Kronlid & Stina Ericsson

Lekbot is a collaboration between DART, Talkamatic and the Dept. of philosophy, linguistics and theory of science, University of Gothenburg. It is funded by VINNOVA, and runs from March 1, 2010 to August 31, 2011.

The project uses current theory and technology in human communication, computer communication and dialogue systems to develop a toy that is fun and interesting for young people with communicative disabilities. The toy helps the development of dialogical communication, an area that is normally problematic for these children. Children with severe disabilities often have few opportunities to play independently and to interact on equal terms with children without disabilities, and here Lekbot enables children with and without disabilities to interact and learn from each other.

The Lekbot toy developed in the project is a radio-controlled robot that can be used by children with severe physical and/or cognitive disabilities, such as cerebral palsy or autism. The robot is controlled by the child through touch-screen symbols. The symbols are translated into spoken language, so that the touch screen "talks" to the robot and acts as the child's voice. The robot can, in turn, talk to the child using spoken language, and the child can again answer using the touch screen.

The robot is built using Lego Mindstorms NXT, and the dialogue system is developed using GoDiS. The project is supported by Acapela, whose speech synthesis is used for both the touch screen and the robot.

We will present the current state of the project and give a demo.

Date: 2010-12-09 10:15 - 12:00

Location:

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Apart from giving a general overview of my research, I will present some preliminary findings from two ongoing projects. The first deals with hunters' communication and organization using tecnology, the second with the use of mobile phones among young science center visitors. The collected material consists of ethnographic fieldwork in these two environments, including video- and audio recordings, as well as interviews of participants. It would be interesting to get your comments on these studies.

Alexandra Weilenmann is associate professor ('docent') in Applied Information Technology and works at the IT Faculty, University of Gothenburg.  She is a member of University of Gothenburg's priorirty research areas Learning and Language Technology.  During 2010-2010 she is financed by Vinnova for a project titled Mobile services for interaction, communication and learning. Partners in this project are Mobile Life VinnExcellence Center, Stockholm University, and the Linnaeus Excellence center LinCS at GU.

Date: 2010-11-25 10:15 - 12:00

Location: L307, Lennart Torstenssonsgatan 8

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Abstract:

At the Gullmarsstrand conference I presented a small application built on the Tropo platform. During my seminar I will report on a couple of other Tropo experiments that I have performed, in attempts to pave the way to more sophisticated applications.

Date: 2010-11-18 10:15 - 12:00

Location: L307, Lennart Torstenssonsgatan 8

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Abstract:

This presentation will consider the principles underlying the construction of lexical analysis software with particular emphasis on MicroConcord (1993) and WordSmith Tools (1996 to date). Both endeavours have benefitted from numerous suggestions and advice but have been implemented mostly individually, almost completely self-taught. Aspects to be explored include language-independence, separation of task and display, relevant senses, the nature of the underlying units (from the individual character up through affixes, words, sentences, paragraphs, texts etc.), keyness, statistical inference, character representation, colour and, especially important,  pattern generation and interpretation. These will be illustrated in part by reference to studies of 17th and 19th Century English literature.

Web: Aston University and lexically.net

Date: 2010-11-11 10:15 - 12:00

Location: K333, Lennart Torstenssonsgatan 6

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Report from LREC 2010

Dimitrios Kokkinakis, Lars Borin and Markus Forsberg

Date: 2010-09-16 10:15 - 12:00

Location: L307, Lennart Torstenssonsgatan 8

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Swesaurus is a free Swedish wordnet currently under construction in our research unit. Swesaurus is made up in part by a combination of a number of pre-existing freely available lexical resources. Two central resources for the purposes of this presentation are SALDO and Synlex.

SALDO is a full-scale Swedish lexical-semantic resource with non-classical, associative relations among word and multiword senses. The senses in SALDO are identified by carefully designed persistent formal identifiers, and for this reason, SALDO has become the “pivot” resource of all our computational lexicon activities, including Swesaurus. We will say something about the relationship of SALDO’s associative relations to classical lexical-semantic relations and how we intend to incorporate the SALDO relations in Swesaurus.

Synlex is a graded Swedish synonym list created by asking members of the public – users of an online Swedish-English dictionary – to judge the degree of synonymy of a random, automatically generated synonym pair candidate.

We will describe our experiments turning the graded synonymy relations of Synlex into fuzzy synsets in Swesaurus. The introduction of fuzziness into a wordnet raises many intricate methodological and theoretical questions, e.g., if w1 is a graded synonym of w2 , and w1 is a hyponym of w3 , what is the relation between w2 and w3. Similarly, if wa is a synonym of degree 0.75 of wb and wb is a synonym of degree 0.9 of wc , what – if any – is the degree of synomymy between wa and wc?

If synonymy is seen as an all-or-none transitive and symmetric relation, the construction of synsets from synonym pairs is arguably straightforward: We can simply compute the transitive closure of the synonymy relation.

When graded synonymy enters the picture, which method to use for collecting synonym pairs into synsets becomes much less obvious, and especially how to assign a degree of synonymy to “derived” pairs, i.e., pairs not in the original list. We have experimented with two different approaches for turning Synlex synonym pairs into fuzzy synsets in Swesaurus, transitive closure and clique formation. We will present the outcomes of these experiments and discuss the merits and disadvantages of the two methods.

Date: 2010-10-14 10:15 - 12:00

Location: L307, Lennart Torstenssonsgatan 8

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Corpora now play a central role in many varieties of language research, and most varieties of computational language research.  Yet our vocabulary for talking about them is terribly weak: corpora are usually described by giving their language, size, perhaps number of constituent texts, and a free-text account of how they were gathered and what they have in them, perhaps mentioning the genres or domains covered.  This is pre-scientific.  As we all come to realise that our findings, in linguistics research, need to be corpus-based, so our inability to talk scientifically about the corpus they are based on becomes a central flaw in the whole research area.

Providing a scientific vocabulary for describing corpora has been my core research agenda for more than a decade now, and the talk will cover work on comparing corpora, developing corpora for different domains and genres, defining domains according to corpora of them, and evaluating corpora.

Adam Kilgarriff on the web: http://www.kilgarriff.co.uk/

Date: 2010-12-02 10:15 - 12:00

Location: L308, Lennart Torstenssonsgatan 8

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Srikant Sarangi (Health Communication Research Centre, Cardiff University)

Communicatively managing risk and uncertainty in healthcare encounters

The notion of risk in the healthcare setting is intimately tied up with the notion of uncertainty. More generally, in contemporary societies, experts no longer solve problems through a straightforward application of theoretical/scientific knowledge, but increasingly engage in assessment of problems, and hence by extension, in generation of risks associated with events that might or might not occur. The language of risk/likelihood thus forms a basis for decision-making.

In this presentation I examine the communicative aspects of risk/uncertainty formulation in the context of oncology and genetic counselling. Beginning with a characterisation of uncertainty in medical settings, I first consider the cancer clinic where risk and uncertainty are simultaneously managed with regard to therapeutic intervention. Here I draw particular attention to ‘risks of procedure’ and the subtle ways in which ‘risk vs. risk’ and ‘risk vs benefit’ scenarios are navigated. I then focus on how genetic counsellors frame risk information in order to balance the need for accurate transmission of factual information as probability statements and the psychosocial goal of avoiding the creation of inappropriate anxieties. I argue that in genetic counselling both counsellors and clients orient to (de)escalating the overall risks – of going through the testing process and of developing the disease – although the counsellors’ immediate focus is on explicating the ‘risks of knowing’ (and disclosing) one’s genetic status rather than the ‘risks of occurrence’ of a genetic condition.

(Link to Sarangi on the web)

Date: 2010-10-21 10:15 - 12:00

Location: K333, Lennart Torstenssonsgatan 6

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We get together and plan the CLT seminar series for the autumn semester.

Date: 2010-09-09 10:15 - 12:00

Location: L307, Lennart Torstenssonsgatan 8

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