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See detailAn Evaluation of Unsupervised Acoustic Model Training for a Dysarthric Speech Interface
Walter, Oliver; Despotovic, Vladimir UL; Haeb-Umbach, Reinhold et al

in Proceedings of the 15th Annual Conference of the International Speech Communication Association (INTERSPEECH 2014) (2014, September)

In this paper, we investigate unsupervised acoustic model training approaches for dysarthric-speech recognition. These models are first, frame-based Gaussian posteriorgrams, obtained from Vector ... [more ▼]

In this paper, we investigate unsupervised acoustic model training approaches for dysarthric-speech recognition. These models are first, frame-based Gaussian posteriorgrams, obtained from Vector Quantization (VQ), second, so-called Acoustic Unit Descriptors (AUDs), which are hidden Markov models of phone-like units, that are trained in an unsupervised fashion, and, third, posteriorgrams computed on the AUDs. Experiments were carried out on a database collected from a home automation task and containing nine speakers, of which seven are considered to utter dysarthric speech. All unsupervised modeling approaches delivered significantly better recognition rates than a speaker-independent phoneme recognition baseline, showing the suitability of unsupervised acoustic model training for dysarthric speech. While the AUD models led to the most compact representation of an utterance for the subsequent semantic inference stage, posteriorgram-based representations resulted in higher recognition rates, with the Gaussian posteriorgram achieving the highest slot filling F-score of 97.02%. [less ▲]

Detailed reference viewed: 33 (2 UL)
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See detailArtificial Intelligence Techniques for Modelling of Temperature in the Metal Cutting Process
Tanikic, Dejan; Despotovic, Vladimir UL

in Metallurgy – Advances in Materials and Processes (2014)

Detailed reference viewed: 150 (1 UL)
See detailInternalizing and externalizing behaviour: Subjective experiences in different classroom situations
Zurbriggen, Carmen UL; Venetz, Martin

Scientific Conference (2014, August)

Detailed reference viewed: 7 (0 UL)
See detailSubgroups of problematic behaviour among students of primary school from teacher perspective: A latent profile analysis
Venetz, Martin; Zurbriggen, Carmen UL; Liesen, Christian

Scientific Conference (2014, August)

Detailed reference viewed: 9 (0 UL)
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See detailA vision based aerial robot solution for the IARC 2014 by the Technical University of Madrid
Pestana, Jesus; Sanchez Lopez, Jose Luis UL; Suarez-Fernandez, Ramon et al

Scientific Conference (2014, August)

Detailed reference viewed: 21 (0 UL)
See detailEducational context and occupational aspirations: The role of academic tracking
Zurbriggen, Carmen UL; Kronig, Winfried; Venetz, Martin

Scientific Conference (2014, July)

Detailed reference viewed: 11 (0 UL)
See detailAbtreibung im Dritten Reich. Ideologie im Frauenstrafvollzug am Beispiel der Strafanstalt Saarbrücken
Wingerter, Elisabeth UL

Bachelor/master dissertation (2014)

The aim of the Bachelor's thesis is to examine how national socialist principles about human reproduction and "racial purity" impacted the female inmates in the penal institution in Saarbrücken, Germany ... [more ▼]

The aim of the Bachelor's thesis is to examine how national socialist principles about human reproduction and "racial purity" impacted the female inmates in the penal institution in Saarbrücken, Germany. Over 200 personal files of German women accused of illegal abortion were examined for this study. The thesis also elaborates on conceptions of womanhood, sexuality and medical misconceptions as well as the impact of the social strata of the affected women. [less ▲]

Detailed reference viewed: 38 (4 UL)
See detailWriting Europe and the East-West Divide
Venken, Machteld UL; Sierakowski, Sławomir; Labov, Jessie et al

Presentation (2014, June 09)

Detailed reference viewed: 2 (0 UL)
See detailPost-Genus: Plädoyer für einen post-binären Sprachwandel
Artuso, Sandy Kathy UL

Article for general public (2014)

Detailed reference viewed: 47 (4 UL)
See detailEco-Systems Biology of human-microbe molecular interactions along the gastrointestinal tract
Wilmes, Paul UL

Scientific Conference (2014, June)

Detailed reference viewed: 21 (0 UL)
See detailEco-Systems Biology of Natural Microbial Communities
Wilmes, Paul UL

Scientific Conference (2014, June)

Detailed reference viewed: 17 (0 UL)
See detailZur Bedeutung von Peers für das akademische Selbstkonzept
Zurbriggen, Carmen UL

Scientific Conference (2014, June)

Detailed reference viewed: 10 (0 UL)
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See detailComputer vision based general object following for GPS-denied multirotor unmanned vehicles
Pestana, Jesus; Sanchez Lopez, Jose Luis UL; Saripalli, Srikanth et al

in 2014 American Control Conference (2014, June)

The motivation of this research is to show that visual based object tracking and following is reliable using a cheap GPS-denied multirotor platform such as the AR Drone 2.0. Our architecture allows the ... [more ▼]

The motivation of this research is to show that visual based object tracking and following is reliable using a cheap GPS-denied multirotor platform such as the AR Drone 2.0. Our architecture allows the user to specify an object in the image that the robot has to follow from an approximate constant distance. At the current stage of our development, in the event of image tracking loss the system starts to hover and waits for the image tracking recovery or second detection, which requires the usage of odometry measurements for self stabilization. During the following task, our software utilizes the forward-facing camera images and part of the IMU data to calculate the references for the four on-board low-level control loops. To obtain a stronger wind disturbance rejection and an improved navigation performance, a yaw heading reference based on the IMU data is internally kept and updated by our control algorithm. We validate the architecture using an AR Drone 2.0 and the OpenTLD tracker in outdoor suburban areas. The experimental tests have shown robustness against wind perturbations, target occlusion and illumination changes, and the system's capability to track a great variety of objects present on suburban areas, for instance: walking or running people, windows, AC machines, static and moving cars and plants. [less ▲]

Detailed reference viewed: 13 (0 UL)
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See detailIslands and a Carceral Environment: Maltese Policy in Terms of Irregular Migration
Lemaire, Léa UL

in Journal of Immigrant and Refugee Studies (2014), 12(2), 143-160

Detailed reference viewed: 79 (3 UL)
See detailBoso, ale na rowerze. De Helaasheid der dingen in Polen
Venken, Machteld UL; Zalewski, Krzysztof Marcin

Presentation (2014, May 08)