Jari Yli-Hietanen

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Personal use of this material is permitted. However, permission to reprint/ republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. ABSTRACT There is an increasing(More)
An approach coined as "reflective information management" is presented as a technique for the management of emergency department chief complaint information. The architecture of a system integrating principles from this approach is described and its performance is evaluated in providing categorical information from free-text chief complaints for use, e.g.,(More)
In this paper, a new robust angle of arrival (AOA) estimation algorithm is presented for transient signals using sensor array data. The estimates are robust against sensor malfunction and the algorithm can cope with overlapping transients occurring on some sensors. The method is especially designed for transient signals having shorter duration than the(More)
PURPOSE A large share of the information in electronic medical records (EMRs) consists of free-text compositions. From a computational point-of-view, the continuing prevalence of free-text entry is a major hindrance when the goal is to increase automation in EMRs. However, the efforts in developing standards for the structured representation of medical(More)
The goal of this study is to present the experiences gathered from the migration of an existing and deployed joint replacement surgery information system from a classical 2-tier architecture to a 4-tier architecture. These include discussion on the motivation for the migration and on the technical benefits of the chosen technical migration path and an(More)
The utilization of information technology as tool in health care is increasing. The main benefits stem from the fact that information in electronic form can be transferred to different locations rapidly and from the possibility to automate certain information management tasks. The current technological approach for this automation relies on structured,(More)
Preface This work has been carried out in the Signal Processing Laboratory of Tampere University of Technology, Finland. The working in the Audio Research Group of TUT has been very enjoyable, and I would like to thank Mr. Jari Yli-Hietanen and Mr. Anssi Klapuri for giving me this possibility. I also would like to thank my other colleagues for the(More)