The purpose of this work is to evaluate possible minimisation of the time needed for expansion of... more The purpose of this work is to evaluate possible minimisation of the time needed for expansion of the scope of a CNN (convolutional neural network) classifier without the need to fully re-train it. We investigate the effects of applying k-NN (k-Nearest Neighbours) based classification and transfer learning (via fine-tuning) for the purpose of adding new classes to an existing deep convolutional neural network without the need to re-train it with the whole set of the existing plus the newly added classes. Our main contribution is the thorough comparison of the overall and per-class classification accuracy in the different scenarios. We use our own selection of ImageNet images for the CIFAR-10 classes plus four more purposefully selected classes. The motivation behind this investigation is the challenge for significant time reduction that would be possible in case the hypothesis that adding new classes to an existing classifier, using transfer learning and k-NN classification does not significantly underperform training with the whole expanded set of classes is true. Though this hypothesis is proved wrong it still sets the foundation for us and/or other researchers to go further into looking for strategies on how to do partial re-training.
In the dynamic environment of increasing customer expectations and fierce price competition it is... more In the dynamic environment of increasing customer expectations and fierce price competition it is hard for health service providers to keep constant service quality, not to mention improve it, considering the increasing cost of labour and services, while sustaining the customer relationship. On the other hand, with the emergence of mobile devices, cloud-based services and big data, new capabilities arise for transforming health services towards cost reduction, individualization, and even gaining a competitive advantage. This paradigm motivates a number of business-to-customer (B2C) service-level innovations in the health industry based on information and communication technologies (ICT). In this work, we present the results of a study we conducted among 522 gym members in Germany. The goal of the survey was to identify market opportunities for service-level improvements and validate them among gym members empirically. During the standard innovation process, we identified video streaming of trainings as a potential solution. We could furthermore prove a positive relationship between the participation of group fitness classes and customer satisfaction, as well as significant interest in technology-based innovation in the fitness industry.
This paper aims at investigating what happens on technology-driven markets when it is critically ... more This paper aims at investigating what happens on technology-driven markets when it is critically necessary to assess and evaluate information about the technology solutions prior to purchase. One of the major difficulties transaction participants face is that they are assessing not just technical properties but also intangible issues regarding the difference between technologies, the future performance of the technology, of the vendor, its behaviour, and other factors. Another major difficulty in the transactions on technology markets is managing the information flow. Here we can find a number of problems: how information about technical solutions is formed, gathered, processed, exchanged and understood from both parties in the transaction. This is where the theory of information asymmetry comes in place. Information asymmetry is the problem preventing communication processes to be effective. A possible mechanism to address the problems information asymmetry created on the technolog...
Lecture Notes in Business Information Processing, 2009
This paper examines the relationship between open source project diversity and success. The sampl... more This paper examines the relationship between open source project diversity and success. The sample of open source projects includes all mature projects driven by the Eclipse Foundation as of February 2008. Three types of project diversity were used: i) ...
The formulation of the finite-difference time-domain (FDTD) approach is presented in the framewor... more The formulation of the finite-difference time-domain (FDTD) approach is presented in the framework of its potential applications to in-vivo flow cytometry based on light scattering. The consideration is focused on comparison of light scattering by a single biological cell alone in controlled refractive-index matching conditions and by cells labeled by gold nanoparticles. The optical schematics including phase contrast (OPCM) microscopy as a prospective modality for in-vivo flow cytometry is also analyzed. The validation of the FDTD approach for the simulation of flow cytometry may open up a new avenue in the development of advanced cytometric techniques based on scattering effects from nanoscale targets.
Authors present their experience with treatment of peripheral nerves. They have operated 190 pati... more Authors present their experience with treatment of peripheral nerves. They have operated 190 patients. In 95 cases they have applied the so-called plasma stitch. In cases where was not infection of the wound, authors performed primary neurout. In cases where the wound was infected, the neuroraphy was postponed while the infection was healed. In every case where there there was lesion of other structures-blood vessels, muscles or the bones, reoperation of these tissues had to be done before neuroraphy was eventually performed. Results were satisfactory in all cases with primary or delayed neuro out.
This presentation will emphasize the current status of advanced design and simulation tools in ph... more This presentation will emphasize the current status of advanced design and simulation tools in photonics technology. The focus will be on Wavelength Division Multiplexing (WDM) component and integrated optic circuits modeling, although some aspects of optical link ...
Proceedings of 5th International Conference on Recent Advances in Space Technologies - RAST2011, 2011
In paper is presented a research complex which will recreate as closely as possible the diversity... more In paper is presented a research complex which will recreate as closely as possible the diversity of the real working environment with appropriate incentives and will register the necessary examination of physical, physiological signals and parameters. Apparatus complex will simulate close to real work situations, will include tests necessary to assess the psychological status of the research subject. Further ahead
The purpose of this work is to evaluate possible minimisation of the time needed for expansion of... more The purpose of this work is to evaluate possible minimisation of the time needed for expansion of the scope of a CNN (convolutional neural network) classifier without the need to fully re-train it. We investigate the effects of applying k-NN (k-Nearest Neighbours) based classification and transfer learning (via fine-tuning) for the purpose of adding new classes to an existing deep convolutional neural network without the need to re-train it with the whole set of the existing plus the newly added classes. Our main contribution is the thorough comparison of the overall and per-class classification accuracy in the different scenarios. We use our own selection of ImageNet images for the CIFAR-10 classes plus four more purposefully selected classes. The motivation behind this investigation is the challenge for significant time reduction that would be possible in case the hypothesis that adding new classes to an existing classifier, using transfer learning and k-NN classification does not significantly underperform training with the whole expanded set of classes is true. Though this hypothesis is proved wrong it still sets the foundation for us and/or other researchers to go further into looking for strategies on how to do partial re-training.
In the dynamic environment of increasing customer expectations and fierce price competition it is... more In the dynamic environment of increasing customer expectations and fierce price competition it is hard for health service providers to keep constant service quality, not to mention improve it, considering the increasing cost of labour and services, while sustaining the customer relationship. On the other hand, with the emergence of mobile devices, cloud-based services and big data, new capabilities arise for transforming health services towards cost reduction, individualization, and even gaining a competitive advantage. This paradigm motivates a number of business-to-customer (B2C) service-level innovations in the health industry based on information and communication technologies (ICT). In this work, we present the results of a study we conducted among 522 gym members in Germany. The goal of the survey was to identify market opportunities for service-level improvements and validate them among gym members empirically. During the standard innovation process, we identified video streaming of trainings as a potential solution. We could furthermore prove a positive relationship between the participation of group fitness classes and customer satisfaction, as well as significant interest in technology-based innovation in the fitness industry.
This paper aims at investigating what happens on technology-driven markets when it is critically ... more This paper aims at investigating what happens on technology-driven markets when it is critically necessary to assess and evaluate information about the technology solutions prior to purchase. One of the major difficulties transaction participants face is that they are assessing not just technical properties but also intangible issues regarding the difference between technologies, the future performance of the technology, of the vendor, its behaviour, and other factors. Another major difficulty in the transactions on technology markets is managing the information flow. Here we can find a number of problems: how information about technical solutions is formed, gathered, processed, exchanged and understood from both parties in the transaction. This is where the theory of information asymmetry comes in place. Information asymmetry is the problem preventing communication processes to be effective. A possible mechanism to address the problems information asymmetry created on the technolog...
Lecture Notes in Business Information Processing, 2009
This paper examines the relationship between open source project diversity and success. The sampl... more This paper examines the relationship between open source project diversity and success. The sample of open source projects includes all mature projects driven by the Eclipse Foundation as of February 2008. Three types of project diversity were used: i) ...
The formulation of the finite-difference time-domain (FDTD) approach is presented in the framewor... more The formulation of the finite-difference time-domain (FDTD) approach is presented in the framework of its potential applications to in-vivo flow cytometry based on light scattering. The consideration is focused on comparison of light scattering by a single biological cell alone in controlled refractive-index matching conditions and by cells labeled by gold nanoparticles. The optical schematics including phase contrast (OPCM) microscopy as a prospective modality for in-vivo flow cytometry is also analyzed. The validation of the FDTD approach for the simulation of flow cytometry may open up a new avenue in the development of advanced cytometric techniques based on scattering effects from nanoscale targets.
Authors present their experience with treatment of peripheral nerves. They have operated 190 pati... more Authors present their experience with treatment of peripheral nerves. They have operated 190 patients. In 95 cases they have applied the so-called plasma stitch. In cases where was not infection of the wound, authors performed primary neurout. In cases where the wound was infected, the neuroraphy was postponed while the infection was healed. In every case where there there was lesion of other structures-blood vessels, muscles or the bones, reoperation of these tissues had to be done before neuroraphy was eventually performed. Results were satisfactory in all cases with primary or delayed neuro out.
This presentation will emphasize the current status of advanced design and simulation tools in ph... more This presentation will emphasize the current status of advanced design and simulation tools in photonics technology. The focus will be on Wavelength Division Multiplexing (WDM) component and integrated optic circuits modeling, although some aspects of optical link ...
Proceedings of 5th International Conference on Recent Advances in Space Technologies - RAST2011, 2011
In paper is presented a research complex which will recreate as closely as possible the diversity... more In paper is presented a research complex which will recreate as closely as possible the diversity of the real working environment with appropriate incentives and will register the necessary examination of physical, physiological signals and parameters. Apparatus complex will simulate close to real work situations, will include tests necessary to assess the psychological status of the research subject. Further ahead
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