Hans-Jürgen Profitlich

Hans-Jürgen Profitlich
Deutsches Forschungszentrum für Künstliche Intelligenz | DFKI · Interactive Machine Learning

Diplom

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25
Publications
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822
Citations
Citations since 2017
7 Research Items
51 Citations
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201720182019202020212022202302468101214
201720182019202020212022202302468101214
201720182019202020212022202302468101214

Publications

Publications (25)
Preprint
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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...
Preprint
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...
Preprint
Full-text available
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...
Preprint
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...
Article
Full-text available
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...
Article
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...
Article
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Article
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...
Article
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...
Conference Paper
Full-text available
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 ...
Article
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...
Article
Full-text available
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...
Article
This document is available only for a nominal charge of 25 DM (or 15 US-S)
Article
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...
Conference Paper
Full-text available
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...
Article
Full-text available
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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