
Hans-Jürgen ProfitlichDeutsches Forschungszentrum für Künstliche Intelligenz | DFKI · Interactive Machine Learning
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Publications (25)
Diabetic Retinopathy (DR) is a leading cause of vision loss in the world, and early DR detection is necessary to prevent vision loss and support an appropriate treatment. In this work, we leverage interactive machine learning and introduce a joint learning framework, termed DRG-Net, to effectively learn both disease grading and multi-lesion segment...
We describe our work on information extraction in medical documents written in German, especially detecting negations using an architecture based on the UIMA pipeline. Based on our previous work on software modules to cover medical concepts like diagnoses, examinations, etc. we employ a version of the NegEx regular expression algorithm with a large...
A shortage of dermatologists causes long wait times for patients who seek dermatologic care. In addition, the diagnostic accuracy of general practitioners has been reported to be lower than the accuracy of artificial intelligence software. This article describes the Skincare project (H2020, EIT Digital). Contributions include enabling technology fo...
Scoring systems are linear classifcation models that only require users to add or subtract a few small numbers in order to make a prediction. They are used for example by clinicians to assess the risk of medical conditions. This work focuses on our approach to implement an intuitive user interface to allow a clinician to generate such scoring syste...
This article presents our steps to integrate complex and partly unstructured medical data into a clinical research database with subsequent decision support. Our main application is an integrated faceted search tool, accompanied by the visualisation of results of automatic information extraction from textual documents. We describe the details of ou...
This work focuses on the integration of multifaceted extensive data sets (e.g. laboratory values, vital data, medications) and partly unstructured medical data such as discharge letters, diagnostic reports, clinical notes etc. in a research database. Our main application is an integrated faceted search in nephrology based on information extraction...
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In Baader (1990a,1990b), we have considered different types of semantics for terminologicial cycles in the concept language FL0 which allows only conjunction of concepts and value restrictions. It turned out that greatest fixed-point semantics (gfp-semantics) seems to be most appropriate for cycles in this language. In the present paper we shall sh...
Contents 1 Vision and Project Goals 3 2 Project Description 4 2.1 The Need for Intelligent Presentation Agents . . . . . . . . . . . . . 4 2.2 Main Goals of the Project . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2.1 Integration of Predesigned and Automatically Generated Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6...
When learning classifiers, more extensive search for rules is shown to lead to lower predictive accuracy on many of the leal-world domains investigated. This counter-intuitive re suit is particularly relevant to recent system the search methods that ...
The family of terminological representation systems has its roots in the representation system KL-ONE. Since the development of KL-ONE more than a dozen similar representation systems have been developed by various research groups. These systems vary along a number of dimensions. In this paper, we present the results of an empirical analysis of six...
We consider different methods of optimizing the classification process of terminological representation systems and evaluate their effect on three different types of test data. Though these techniques can probably be found in many existing systems, until now there has been no coherent description of these techniques and their impact on the performa...
This document is available only for a nominal charge of 25 DM (or 15 US-S)
Multimodal interfaces combining natural language and graphics take advantage of both the individual strength of each communication mode and the fact that several modes can be employed in parallel. The central claim of this paper is that the generation of a multimodal presentation can be considered as an incremental planning process that aims to ach...
This paper contains a proposal for a terminological logic. The formalisms forrepresenting knowledge as well as the needed inferences are described.1 IntroductionAn important aspect of intelligence is the use of existing knowledge. In order to realizethis in AI-Systems we need both adequate methods to represent knowledge and effectiveprocedures to r...
This paper contains a proposal for a terminological logic. The formalisms for representing knowledge as well as the needed inferences are described. 1 Introduction An important aspect of intelligence is the use of existing knowledge. In order to realize this in AI-Systems we need both adequate methods to represent knowledge and effective procedures...
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