Beitrags-Archiv für die Kategory 'Wissenschaft'

Google Echos

Samstag, 19. April 2008 10:31

Alte Neuigkeiten für Neueinsteiger erreichten mich heute mich Nachdruck, Hochdruck, wie auch immer: Google hat seine SOAP eingestellt, bevor ich sie überhaupt sinnvoll hätte nutzen können. Dabei kommen wir doch gerade in die Link Reichweite schneller semantischer Analysen. Mir geht’s um Foschung. Ich habe überhaupt kein Interesse, Google-Ergebnisse auf irgendeine Art an Endbenutzer weiter zu geben (und dann die Ads wegzulassen). Ads ignorieren, das schaffen die User schon auf ihre ganz eigene Art.

Ich komme nur leider als Newbie nicht an den SOAP Key. Vielleicht hätte ich meine hellseherischen Fähigkeiten einsetzen und mir sicherheitshalber mal einen laden sollen. Dumm gelaufen: Kaum drin, schon wieder raus.

Weitere, insbesondere historische Hintergrundinformationen gibt Frank McCown in Link Questio Verum: Google Drops the SOAP.

Thema: Technik, Wissenschaft | Kommentare (0) | Autor:

Bridging the World’s Knowledge

Donnerstag, 27. März 2008 20:42

Für die AERA war’s nun das fünfte und letzte Paper. Jeden Tag mindestens eine Präsentation ist etwas heftig, aber natürlich auch auf mehrfache Arten schön. Einmal mit meinem Bruder zusammen auf einer Konferenz präsentieren zu dürfen, war natürlich ein besonderes Highlight. In New York sein Debut zu geben, hat natürlich was. Also: Herzlichen Glückwunsch, Saty!

Saty präsentiert bei TICL

Bridging the World’s Knowledge to Individual Knowledge
Using Latent Semantic Analysis and Web Ontologies to Complement Classical and New Knowledge Assessment Technologies.

Abstract
Using the theory of mental models to account for the process of human mental information processing and representation has become an important approach in the field of knowledge engineering. Most methods of knowledge assessment are based on graphical concept mapping techniques. Tools like MITOCAR complement the graphical approaches by externalizing knowledge on the basis of natural language. Although this approach has proven valid and reliable in a series of previous studies, the annotation of propositions is still a problem. In this technological study we found out that some of these methodological weaknesses concerning annotations in model based knowledge assessment and concept mapping can be compensated by using information from large text corpora, e.g. LSA or ontologies from the semantic web.

PirnayDummer, P. & Walter, S. (2008). Bridging the World’s Knowledge to Individual Knowledge. Using Latent Semantic Analysis and Web Ontologies to Complement Classical and New Knowledge Assessment Technologies,Paper presented to the AERA 2008, TICL SIG


Thema: Wissenschaft | Kommentare (0) | Autor:

Language, Association & Model Re-Representation

Mittwoch, 26. März 2008 21:52

Heute kam noch ein weiteres Paper zur Präsentation. Dank Satys Anwesenheit, gibt es auch eine Foto (für alle, die schon immer gerne Geisterbahn fuhren).

Language, Association, and Model Re-Representation
How Features of Language and Human Association Can Be Utilized for Automated Knowledge Assessment

AERA 2008, TICL 4, Language, Association, and Model Re-Representation

Abstract
Wittgenstein (1922) made the remarkable statement in Tractatus Logico-Philosophicus that we picture fact to ourselves. It is a long way from the theory of mental models and the philosophy of language to the language-oriented assessment tools that we are able to present. Yet the very basic principles of association seem to convey their influence throughout the expressive possibilities of human language communication: What is closely related will be closely represented. Different technologies based on theories of mental models, association, and the philosophy of language were introduced and discussed in this paper. While MITOCAR is a validated tool which was initially developed to gain access to the expertise of groups, T-MITOCAR develops the access to the properties of language even further so that it can be used to elicit individual knowledge directly from written text.

GB”>Link Pirnay-Dummer, P. & Spector, J.M. (2008). Language, Association, and Model Re-Representation. How Features of Language and Human Association can be Utilized for Automated Knowledge Assessment, Paper presented to the AERA 2008, TICL SIG


Thema: Wissenschaft | Kommentare (1) | Autor:

Reading with the Guide

Mittwoch, 26. März 2008 14:02

Und noch ein Poster konnte aufgehängt und mannigfach diskutiert werden (ein Foto fehlt zwar, würde aber andererseits auch keine gut aussehenden Frauen enthalten, also ist’s bestimmt nicht so schlimm).

Reading with the Guide of Automated Graphical Representations
How Model Based Text Visualizations Facilitate Learning in Reading Comprehension Tasks

Abstract
Our research interest aims to integrate automated natural language-oriented assessment and analysis methodologies into feasible reading comprehension tasks. With the newly developed T-MITOCAR toolset, prose text can be automatically converted into a graph-like concept map. The “text to graph” feature of the software is based on several parsing heuristics and can be used both to assess the learner’s understanding by generating graphical information from his or her text and to generate conceptual graphs from text which are used as learning materials. An international study on three different subject domains raises high hopes for the efficiency and feasibility of the learning materials produced by T-MITCAR. The software will be further developed and implemented with interfaces to selected research tools.

PirnayDummer, P., Ifenthaler, D., Johnson, T.E. (2008). Reading with the Guide of Automated Graphical Representations. How Model Based Text Visualizations Facilitate Learning in Reading Comprehension Tasks, Poster presented to the AERA 2008, Motivation & Emotions: Considerations of Self, Contexts, Classrooms, & Control

Thema: Wissenschaft | Kommentare (0) | Autor:

Jubilar auf der Reception

Mittwoch, 26. März 2008 13:49

Auf der Springer-Reception haben wir justamento den Jubilar erneut gefeiert.

Springer Reception Seel Sheldon


Die “Troublemakers” (O-Ton Marie Sheldon) -Herausgeber, der Jubilar und die Grand Dame von Springer. Es gab eine Rede, etwas zu essen und zu trinken und die Freiburger Gang war komplett mit dabei. Die Runde im Pub später war indes durchaus noch etwas lustiger.

25.3.2008 um 19-21 Uhr.

Thema: Reise, Wissenschaft | Kommentare (0) | Autor:

Annotations for Knowledge Structures

Mittwoch, 26. März 2008 12:26

Poster presented, zusammen mit Katharina Rauh.

Annotations for Knowledge Structures
Quantitative Measurability of Propositions in Concept Maps and New Approaches to Mental Model Assessment

Poster mit Katharina

Abstract:
From a cognitive psychological perspective, graphical networks correspond to the theory of the propositional representation of meaning. Analyzing the knowledge of groups of people is relevant in educational research because instructional methods are evaluated according to measured learning success. There are reasons to prefer concept maps to classical knowledge tests, but most concept mapping techniques are very laborious and time consuming. We thus use highly automated computer assessment tools which are oriented toward natural language and based on the theory of mental models to compensate for this. In two studies, we show the challenges which arise from the annotation problem. The study closes with a discussion of the main methodological consequences of our findings for knowledge and mental model assessment.

PirnayDummer, P. & Rauh, K. (2008). Annotations for Knowledge Structures. Quantitative Measurability of Propositions in Concept Maps and New Approaches to Mental Model Assessment, Poster presented to the AERA 2008, Cognition & Instruction: Modeling, Measuring, Evaluating, & Explaining

Thema: Wissenschaft | Kommentare (0) | Autor:

Norbert M. Seel und seine Festschrift

Dienstag, 25. März 2008 17:04

Nach einiger Zeit zwischen der Fertigstellung und dem Druck das Buch selbst in der Hand haltend:

Seel und seine Festschrift
Norbert M. Seel und seine Festschrift

Ifenthaler, D., PirnayDummer, P., & Spector, J.M. (2008). Understanding models for learning and instruction. Essays in honor of Norbert M. Seel. New York: Springer.

Thema: Wissenschaft | Kommentare (0) | Autor: