Im Rahmen dieser Dissertation wird sich mit der Einbettung komplexer Datenanalyseprozesse in serviceorientierten Umgebungen beschäftigt. Diese Betrachtung beginnt mit einem konkreten Anwendungsgebiet, indem derartige Analyseprozesse eine entscheidende Rolle bei der Wissenserschließung spielen und ohne deren Hilfe kein Fortschritt erzielt werden kann. Im zweiten Teil werden konkrete komplexe Datenanalyseprozesse entwickelt, die den Ausgangspunkt für die Erörterung der Einbettung in eine serviceorientierte Umgebung bilden. Auf diese Einbettung wird schlussendlich im dritten Teil der Dissertation eingegangen und entsprechende Erweiterungen an den Technologien der bekanntesten Realisierungsform präsentiert. In der Evaluierung wird gezeigt, dass diese neue Form wesentlich besser geeignet ist für komplexe Datenanalyseprozesse als die bisherige Variante.

This research is mainly concerned with a robust method for improving the performance of a real-time speech enhancement and noise cancellation for Automatic Speech Recognition (ASR) in a real-time environment. Therefore, the thesis titled, “Real-time adaptive beamformer for Automatic speech Recognition in a car environment” presents an application technique of a beamforming method and Automatic Speech Recognition (ASR) method. In this thesis, a novel solution is presented to the question as below, namely: How can the driver’s voice control the car using ASR? The solution in this thesis is an ASR using a hybrid system with acoustic beamforming Voice Activity Detector (VAD) and an Adaptive Wiener Filter. The beamforming approach is based on a fundamental theory of normalized least-mean squares (NLMS) to improve Signal to Noise Ratio (SNR). The microphone has been implemented with a Voice Activity Detector (VAD) which uses time-delay estimation together with magnitude-squared coherence (MSC). An experiment clearly shows the ability of the composite system to reduce noise outside of a defined active zone. In real-time environments a speech recognition system in a car has to receive the driver’s voice only whilst suppressing background noise e.g. voice from radio. Therefore, this research presents a hybrid real-time adaptive filter which operates within a geometrical zone defined around the head of the desired speaker. Any sound outside of this zone is considered to be noise and suppressed. As this defined geometrical zone is small, it is assumed that only driver's speech is incoming from this zone. The technique uses three microphones to define a geometric based voice-activity detector (VAD) to cancel the unwanted speech coming from outside of the zone. In the case of a sole unwanted speech incoming from outside of a desired zone, this speech is muted at the output of the hybrid noise canceller. In case of an unwanted speech and a desired speech are incoming at the same time, the proposed VAD fails to identify the unwanted speech or desired speech. In such a situation an adaptive Wiener filter is switched on for noise reduction, where the SNR is improved by as much as 28dB. In order to identify the signal quality of the filtered signal from Wiener filter, a template matching speech recognition system that uses a Wiener filter is designed for testing. In this thesis, a commercial speech recognition system is also applied to test the proposed beamforming based noise cancellation and the adaptive Wiener filter.

The aim of this work is to analyze the modern radio communication technologies and to formulate a methodology and means for implementing them in customers’ premises networks.

The aim of this work is to analyze the modern radio communication technologies and to formulate a methodology and means for implementing them in customers’ premises networks.

Im Rahmen dieser Dissertation wird sich mit der Einbettung komplexer Datenanalyseprozesse in serviceorientierten Umgebungen beschäftigt. Diese Betrachtung beginnt mit einem konkreten Anwendungsgebiet, indem derartige Analyseprozesse eine entscheidende Rolle bei der Wissenserschließung spielen und ohne deren Hilfe kein Fortschritt erzielt werden kann. Im zweiten Teil werden konkrete komplexe Datenanalyseprozesse entwickelt, die den Ausgangspunkt für die Erörterung der Einbettung in eine serviceorientierte Umgebung bilden. Auf diese Einbettung wird schlussendlich im dritten Teil der Dissertation eingegangen und entsprechende Erweiterungen an den Technologien der bekanntesten Realisierungsform präsentiert. In der Evaluierung wird gezeigt, dass diese neue Form wesentlich besser geeignet ist für komplexe Datenanalyseprozesse als die bisherige Variante.

Planar electromagnetic sensing system has been used as one of the NDT methods to evaluate the material properties i.e., to evaluate near-surface properties such as conductivity, permeability and dielectric properties. The applications of planar electromagnetic sensors will depend on both the characteristic of the sensor type chosen and also the characteristic of material under test. Conventional planar interdigital sensors and novel planar interdigital sensors have been designed, fabricated and tested for detection of dangerous marine biotoxins in seafood. Our main objective is to sense the presence of dangerous contaminated acid in mussels and other seafoods. Initial studies were conducted with three peptide derivatives namely Sarcosine, Proline and Hydroxylproline. These three chemicals are structurally closely related to our target molecule (domoic acid). The initial results have shown that all sensors respond very well to the chemicals and it is possible to discriminate the different chemicals from the output of the sensor. Novel interdigital sensors have shown better sensitivity measurement compared to conventional interdigital sensors. The novel interdigital sensors were then being tested with three seafood products. Results from the analysis have shown that novel interdigital sensor with configuration #1 (Sensor_1) has better sensitivity compared to other sensors. Sensor_1 has been chosen for experiment using proline and mussels. The changes in sensor sensitivity were analysed with mussels before and after adding the proline. The presence of proline on the mussel surface and also injected proline to the mussel samples were clearly detected by Sensor_1. Further experiment was conducted with small amount of domoic acid (0.5 µg to 5.0 µg) injected to a mussel and it was found that Sensor_1 was able to detect small amount of domoic acid (1.0 µg) injected into the mussel sample. Sensor_1 was able to detect approximately 12.6 µg/g of domoic acid in mussel meat. Three threshold levels of particular sample thickness have been established for detection of domoic acid. The first prototype of a low cost sensing system known as SIT (Seafood Inspection Tool) has been developed. The outcomes from the experiments provide chances of opportunity for further research in developing a low cost miniature type of sensors for reliable sensing system for commercial use.

Planar electromagnetic sensing system has been used as one of the NDT methods to evaluate the material properties i.e., to evaluate near-surface properties such as conductivity, permeability and dielectric properties. The applications of planar electromagnetic sensors will depend on both the characteristic of the sensor type chosen and also the characteristic of material under test. Conventional planar interdigital sensors and novel planar interdigital sensors have been designed, fabricated and tested for detection of dangerous marine biotoxins in seafood. Our main objective is to sense the presence of dangerous contaminated acid in mussels and other seafoods. Initial studies were conducted with three peptide derivatives namely Sarcosine, Proline and Hydroxylproline. These three chemicals are structurally closely related to our target molecule (domoic acid). The initial results have shown that all sensors respond very well to the chemicals and it is possible to discriminate the different chemicals from the output of the sensor. Novel interdigital sensors have shown better sensitivity measurement compared to conventional interdigital sensors. The novel interdigital sensors were then being tested with three seafood products. Results from the analysis have shown that novel interdigital sensor with configuration #1 (Sensor_1) has better sensitivity compared to other sensors. Sensor_1 has been chosen for experiment using proline and mussels. The changes in sensor sensitivity were analysed with mussels before and after adding the proline. The presence of proline on the mussel surface and also injected proline to the mussel samples were clearly detected by Sensor_1. Further experiment was conducted with small amount of domoic acid (0.5 µg to 5.0 µg) injected to a mussel and it was found that Sensor_1 was able to detect small amount of domoic acid (1.0 µg) injected into the mussel sample. Sensor_1 was able to detect approximately 12.6 µg/g of domoic acid in mussel meat. Three threshold levels of particular sample thickness have been established for detection of domoic acid. The first prototype of a low cost sensing system known as SIT (Seafood Inspection Tool) has been developed. The outcomes from the experiments provide chances of opportunity for further research in developing a low cost miniature type of sensors for reliable sensing system for commercial use.

Planar electromagnetic sensing system has been used as one of the NDT methods to evaluate the material properties i.e., to evaluate near-surface properties such as conductivity, permeability and dielectric properties. The applications of planar electromagnetic sensors will depend on both the characteristic of the sensor type chosen and also the characteristic of material under test. Conventional planar interdigital sensors and novel planar interdigital sensors have been designed, fabricated and tested for detection of dangerous marine biotoxins in seafood. Our main objective is to sense the presence of dangerous contaminated acid in mussels and other seafoods. Initial studies were conducted with three peptide derivatives namely Sarcosine, Proline and Hydroxylproline. These three chemicals are structurally closely related to our target molecule (domoic acid). The initial results have shown that all sensors respond very well to the chemicals and it is possible to discriminate the different chemicals from the output of the sensor. Novel interdigital sensors have shown better sensitivity measurement compared to conventional interdigital sensors. The novel interdigital sensors were then being tested with three seafood products. Results from the analysis have shown that novel interdigital sensor with configuration #1 (Sensor_1) has better sensitivity compared to other sensors. Sensor_1 has been chosen for experiment using proline and mussels. The changes in sensor sensitivity were analysed with mussels before and after adding the proline. The presence of proline on the mussel surface and also injected proline to the mussel samples were clearly detected by Sensor_1. Further experiment was conducted with small amount of domoic acid (0.5 µg to 5.0 µg) injected to a mussel and it was found that Sensor_1 was able to detect small amount of domoic acid (1.0 µg) injected into the mussel sample. Sensor_1 was able to detect approximately 12.6 µg/g of domoic acid in mussel meat. Three threshold levels of particular sample thickness have been established for detection of domoic acid. The first prototype of a low cost sensing system known as SIT (Seafood Inspection Tool) has been developed. The outcomes from the experiments provide chances of opportunity for further research in developing a low cost miniature type of sensors for reliable sensing system for commercial use.

L’évaluation des capacités motrices est une activité essentielle de l’analyse de mouvement. Cette activité permet de quantifier la performance d’un patient et ainsi d’être capable de suivre et de contrôler son évolution pour assurer un traitement adapté. Les kinésithérapeutes ont donc besoin d’outils précis leurs permettant de mesurer cette performance. Pour cela, ils ont développé leurs propres outils basés sur l’observation et des exercices normés. Pourtant, cette activité pourrait être supportée et augmentée par l’utilisation de technologies avancées. Il existe une catégorie d’outils technologiques permettant le suivi et la capture de ces mouvements. Leur utilisation dans des systèmes d’aide à l’évaluation pourrait affiner l’évaluation des thérapeutes et également augmenter sa reproductibilité. Pour assurer l’utilisation dans la durée de ce type d’outils, il est nécessaire de répondre à la question suivante : « quels sont les enjeux et les critères de développement spécifiques aux systèmes d’évaluation des capacités motrices ? ». Dans ce travail de thèse, cette question a été restructurée suivant 3 axes : « comment mesurer les capacités motrices ? », « comment analyser et communiquer le résultat ? » et enfin « comment intégrer ce système dans la pratique médicale ? ». Pour chacun de ces axes, les critères clés de développement ont été investigués et des contributions sont présentées. Afin d’illustrer ces critères, une étude de cas a été menée : l’instrumentation, à l’aide de nouvelles technologies de capture de mouvements, d’un protocole de mesure de capacités motrices (aussi appelé MFM ou Mesure de la Fonction Motrice). / The motor capacities (motor skills)’ evaluation is an essential activity for movement analysis. This activity aims is to quantify the human’s motor performance to be able to follow-up and control the evolution of the patient’s pathology thus allowing an adapted treatment. The physiotherapists need accurate tools able to measure this performance. They developed their own tools based on observations and normalized exercises. This activity can be supported and enhanced by the technological advances. A category of motion tracking tools exists to track and record those movements. Their use in motor evaluation system could refine the therapist’s evaluations and increase their reproducibility. To insure the correct development and use of such tools it is necessary to answer the following question: “what are the development stakes and criteria related to a system for measure and evaluation of motor capacities?” This thesis work refined this question into the 3 following research axis: “how to measure motor capacities?”, “how to analyze and communicate the result?”, “how to integrate this system in the medical practice?” For each of those axis the key criteria for development were investigated and contributions are presented. To illustrate those criteria a case study was conducted: the instrumentation, with new motion capture technologies, of an assessment protocol for motor capacities also called MFM (The Motor Function Measure).

Cette recherche propose d’étudier et de présenter des supports susceptibles d'améliorer le processus d'apprentissage des personnes malentendantes et sourdes par la médiation de nouveaux outils comme les tablettes tactiles. La question est de savoir si l’introduction de ces nouveaux outils, pourrait permettre la création de didacticiels adaptés aux spécificités cognitives des enfants sourds.Dans le contexte actuel, notre hypothèse est que les nouvelles technologies informatiques et les outils numériques (comme les tablettes tactiles) influenceraient positivement le processus d’apprentissage des élèves sourds et malentendants.En conséquence, nous avons créé un logiciel éducatif, Digisthésia, qui a été conçu et adapté aux besoins des élèves sourds et malentendants. Le but de cet outil était de développer et d’améliorer 4 des principales potentialités cognitives : l’attention, la mémoire, la vitesse de traitement et la résolution de problèmes.Notre protocole a mobilisé 80 élèves de 7 collèges de Lyon et de la périphérie lyonnaise : 40 élèves avec différents degrés de déficience auditive, des sujets implantés et appareillés (20 participants ont utilisé le logiciel éducatif Digisthésia / 20 personnes ont fait partie du groupe de contrôle) ainsi que 40 élèves sans déficiences auditives (20 participants qui ont utilisé notre logiciel éducatif sur tablette tactile / 20 élèves ont fait partie du groupe témoin). Les résultats indiquent que la médiation par les nouvelles technologies a renforcé les potentialités cognitives des élèves sourds et malentendants. Nous avons observé un progrès au niveau de l’apprentissage des participants sourds et malentendants suite à l’utilisation du logiciel éducatif Digisthésia sur tablette tactile. / This research proposes to study and present materials that can improve the learning process for people who are hard of hearing and deaf by leveraging the use of new tools such as touch tablets. The question is whether the introduction of these new tools could allow the creation of software tools that more adapted to the cognitive specificities of deaf children.In the current context, our hypothesis is that new computer-base technologies and digital tools (such as touch tablets) would positively influence the learning process for students who are deaf and hard of hearing.As a result, we have created the educational software Digisthésia that has been designed and adapted to the needs of students who are deaf and hard of hearing. The aim of this tool was to develop and improve 4 important cognitive parameters such as attention, memory, processing speed and problem solving.Our protocol mobilized 80 students from grade schools from and near Lyon: 40 students suffering from different degrees of hearing impairment, with an without cochlear implants (20 subjects used the tablet/20 subjects were part of the control group). As well as 40 students with no hearing impairments (20 subjects who used the educational software Digisthésia and the tablet /20 subjects who were part of the control group).The results indicate that leveraging the new technologies has enhanced the cognitive potential of deaf and hard of hearing students. We have seen progress in the learning of deaf and hard of hearing participants as a result of the use of tablets and our software.