Browsing Publikationen by Institution "Institut für Nachrichtentechnik"
Now showing items 1-20 of 33
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A companion-system architecture for realizing individualized and situation-adaptive user assistance
Bericht(Universität Ulm, 2018-12-19)We show how techniques from various research areas – most notably hierarchical planning, dialog management, and interaction management – can be employed to realize individualized and situation-adaptive user assistance. We ... -
A debating ontology for argumentative dialogue systems
Abschlussarbeit (Bachelor)(Universität Ulm, 2018-06-01)This thesis designs and implements an ontology which encodes the argumentative structure of natural language debates. This Debating Ontology will constitute the database for a prospective Argumentative Dialogue System, ... -
A noncoherent massive MIMO system employing beamspace techniques
Wissenschaftlicher Artikel(Universität Ulm, 2019-09-23)Noncoherent detection schemes are an appealing and low-complexity alternative in multi-user massive MIMO uplink systems compared to classical coherent detection algorithms, since no actual channel knowledge is required ... -
Adaptive dialogue management for a script knowledge based conversational assistant
Abschlussarbeit (Master; Diplom)(Universität Ulm, 2019-05-14)The spoken dialogue systems today already fulfill many requirements, and their human-machine interaction works very well. Nevertheless, the users still adapt their communication style to these system. In order to develop ... -
Advanced equalization and coded-modulation strategies for multiple-input/multiple-output systems
Dissertation(Universität Ulm, 2019-07-01)Advanced equalization and coded-modulation strategies for multiple-input/multiple-output (MIMO) communication are considered. The focus is on techniques that are suited for the application in multiuser MIMO uplink transmission ... -
Algebraic decoding over finite and complex fields using reliability information
Dissertation(Universität Ulm, 2018-01-10)In this dissertation, new algebraic decoding algorithms for Reed–Solomon codes are developed, all of which use reliability information. The two main scenarios are Reed–Solomon codes defined over finite fields and the ... -
Antenna design for noncoherent massive MIMO systems
Beitrag zu einer Konferenz(Universität Ulm, 2018-10-15)Massive MIMO is one of the key technologies that enables an increase in capacity in multi-user MIMO systems. However, these systems suffer from high channel estimation complexity and its degradation due to pilot contamination. ... -
Anwendungsübergreifende Dialoge durch Wissensbasen und Taskmodelle
Dissertation(Universität Ulm, 2017-11-24)Elektronische Geräte sind zunehmend allgegenwärtig und beinhalten diverse Funktionen mit verschiedenen Anwendungen. Benutzern sind diese Funktionen oftmals so wichtig, dass sie diese selbst durchführen, wenn sie von anderen ... -
Automatic assessment of interaction quality in human-human conversations
Dissertation(Universität Ulm, 2019-07-12)This thesis investigates an attempt to adapt the metric for the quality estimation in the ongoing dialogue from the field of human-computer spoken interaction to human-human conversation. Research related to automatic ... -
Automatic estimation of users' verbal intelligence
Dissertation(Universität Ulm, 2016-07-19)The purpose of our research is the development of algorithms for the automatic estimation of the verbal intelligence of individuals - in other words the level of verbal cognitive processes - based on the analysis of ... -
Channel coding for hardware-intrinsic security
Dissertation(Universität Ulm, 2019-10-24)Hardware-intrinsic security studies cryptographic methods, whose implementations are assisted by some specific physical properties of the hardware on which they are executed. Physical Unclonable Functions (PUFs) are a ... -
Channel-SLAM: multipath assisted positioning
Dissertation(Universität Ulm, 2018-10-18)In wireless propagation transmitted signals are reflected, scattered and diffracted by objects. Especially in urban canyons or inside buildings, the signal reaching the receiving antenna consists of multiple replicas of ... -
Construction and decoding of evaluation codes in hamming and rank metric
Dissertation(Universität Ulm, 2018-08-30)This dissertation considers constructions and decoders of several evaluation codes in Hamming and rank metric. Codes in Hamming metric have been studied since the 1950s and the known codes considered in this thesis have ... -
Controlling an intelligent operating room with spoken language
Abschlussarbeit (Bachelor)(Universität Ulm, 2017-09-20)With the emergence of new technologies, the surgical working environment becomes increasingly complex and comprises many medical devices which have to be taken care of. However, the operating personnel cannot be extended ... -
Effiziente broadcast Datenübertragung in mobilen Ad-hoc-Netzwerken : ein intelligentes Protokoll für intelligente Umgebungen
Dissertation(Universität Ulm, 2019-02-18)Ein wichtiger Baustein zur Realisierung von “umgebende Intelligenz” sind effiziente und gleichzeitig zuverlässige Datenübertragungsprotokolle. Die Verteilung von Daten via Broadcast besitzt ein großes Potential Kommunikation ... -
End-to-End time-continuous emotion recognition for spontaneous interactions
Abschlussarbeit (Master; Diplom)(Universität Ulm, 2019-08-07)Speech emotion recognition has emerged in the area of speech signal research since it can have a signficant role in Artificial intelligent. In the area of speech emotion recognition, hand-engineered features are traditionally ... -
From curse to blessing: harnessing geomagnetic field disturbances for ubiquitous navigation
Dissertation(Universität Ulm, 2019-03-14)Determination of location is a fundamental problem with a long history of research and technical solutions. The research described in this thesis focuses on the use of a specific signal, the magnetic field, to achieve ... -
High range and doppler resolution by application of compressed sensing using low baseband bandwidth OFDM radar
Wissenschaftlicher Artikel(Universität Ulm, 2018-06-05)Multi-carrier waveforms such as orthogonal frequency-division multiplexing (OFDM) found their way into radar applications in the last few years. However, currently, typically only a fraction of the large baseband bandwidth ... -
Influence of channel parameters on noncoherent massive MIMO systems
Beitrag zu einer Konferenz(Universität Ulm, 2018)In multi-user massive MIMO uplink systems, noncoherent detection schemes offer an appealing alternative to classical coherent detection algorithms. Sorted decision-feedback differential detection (DFDD) in combination with ... -
Innovative Barcode-Konzepte für DNA-Sequenzierverfahren der zweiten Generation
Dissertation(Universität Ulm, 2016-06-06)Die Sequenzierung von DNA wurde zur Jahrtausendwende durch die Entwicklung der Sequenzierverfahren zweiter Generation revolutioniert. Die massive Parallelisierung als Kernkonzept ermöglicht seither eine stetig steigende ...