Document image binarization is an important step in the document image analysis and recognition pipeline. H-DIBCO 2014 is the International Document Image Binarization Competition which is dedicated to handwritten doc...
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Document image binarization is an important step in the document image analysis and recognition pipeline. H-DIBCO 2014 is the International Document Image Binarization Competition which is dedicated to handwritten document images organized in conjunction with ICFHR 2014 conference. The objective of the contest is to identify current advances in handwritten document image binarization using meaningful evaluation performance measures. This paper reports on the contest details including the evaluation measures used as well as the performance of the 7 submitted methods along with a short description of each method.
Developing teaching materials is a time-consuming and expensive activity. Thus, over the years, several consortia have created joint materials to benefit from them. It is expected that shared teaching materials are a ...
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ISBN:
(纸本)9781479931927
Developing teaching materials is a time-consuming and expensive activity. Thus, over the years, several consortia have created joint materials to benefit from them. It is expected that shared teaching materials are a means to save effort in its development, to transfer methodological and technical knowledge between different university staff, and to exchange experience in practical application. However, does it really pay off considering the diversity of different educational environments and the difficulties of using externally produced materials, rather than dedicated individual ones? This paper reports on the experience gained in a multi-country project. Both success factors and problems are outlined. It turned out that sharing an educational repository by several partners supports maintaining quality of teaching materials by joint efforts and distributed contributions.
This chapter proposes an approach to fuzzy modeling of Anti-lock Braking Systems (ABSs). The local state-space models are derived by the linearization of the nonlinear ABS process model at ten operating points. The Ta...
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Stratification is a valuable technique for providing an insight on the structure of the patient population based on some features such as Activity of Daily Living (ADL) scores. Grouping patients can play an important ...
Stratification is a valuable technique for providing an insight on the structure of the patient population based on some features such as Activity of Daily Living (ADL) scores. Grouping patients can play an important role in designing clinical trials or improving care delivery. In this paper, we present a method for stratifying patients based on their ADL scores. Every patient is represented by a time series consisting of ADL scores recorded over a period of up to two years. This approach relies on Dynamic Time Warping (DTW) technique to measure the similarity between two time series and then using Relational Self-Organizing Maps (RSOM) to discover patient clusters. The analysis was performed on a population of 6,000 patients. Six clusters were discovered: patients with high risk and steady ADL trajectory, low risk and steady trajectory, patients with sudden ADL score jumps, patients with declining ADL score and others with steady inclining trajectory.
As a result of the rapid evolution of mobile communications in the last decade many propagation models have been developed for radio planning purposes. To verify the various propagation models, accurate measurements o...
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As a result of the rapid evolution of mobile communications in the last decade many propagation models have been developed for radio planning purposes. To verify the various propagation models, accurate measurements of the received signals have to be performed especially at the edges of mobile communication cells, where the received power is at very low level and signal to noise ratio is degraded. In these cases narrowband receivers such as spectrum analyzers have to be employed. The settings of the receivers have to be examined carefully, since they are of crucial importance, in order to discriminate the measured signals from the noise. On the other hand, noise has to be removed from the measurements and uncertainty has to be estimated correctly; thus the “clean” levels will be suitable for verifying the propagation models and optimize the radio planning. In this paper a method of noise reduction for such signals is presented.
Seeker is widely used in literature of radar. The goal of this paper is designing a dual mode monopulse antenna for seeker. The dual mode technology is widely used in passive and active seekers. In this technology, an...
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ISBN:
(纸本)9781479961924
Seeker is widely used in literature of radar. The goal of this paper is designing a dual mode monopulse antenna for seeker. The dual mode technology is widely used in passive and active seekers. In this technology, antenna radiation and infrared sensor are used for target detection. Thus, the angle of target in azimuth plane is precisely detected. In this paper, a dual mode slot array antenna in X-band for an active seeker is designed and optimized. The Main lobe of the antenna is only in azimuth plane and does not shift with frequency variation. The gain of the antenna is suggested to be 23dBi for the best detection. We select the type of the antenna due to the available results in the literature. Then, designing of the antenna is done step by step. Simulation and optimization of antenna are performed by CST studio suite software.
In this work, a semantic web framework is proposed. The aim of the framework is to semantically process and link data from different sources. The proposed framework embeds multiple entry channels for different target ...
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In this work, a semantic web framework is proposed. The aim of the framework is to semantically process and link data from different sources. The proposed framework embeds multiple entry channels for different target groups and motivations to re-use, report, comment and share content. The implementation is built on top of a Content Management System. In this approach we are using Drupal but any other CMS can be used alternatively. Even though in our paradigm the sources are mainly from an institution's data, namely National Technical University of Athens (NTUA) digital library, the utilization of the proposed architecture can be directly extended to additional fields.
In this paper, Differential Evolution (DE) is used for the evolutionary optimization of control of chaotic Lozi map system. The novality of the approach is that the identical selected discrete dissipative chaotic syst...
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Service-Oriented Computing (SOC) was introduced some years ago as a paradigm that allows companies to expose their core competencies as services. Yet, we can only benefit from the full potential of SOC if we explore t...
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Service-Oriented Computing (SOC) was introduced some years ago as a paradigm that allows companies to expose their core competencies as services. Yet, we can only benefit from the full potential of SOC if we explore the possibility of composing services. In practice, service composition enables the development of complex systems by combining existing services, which makes it possible to integrate business processes across different companies. Several languages have been defined to specify service compositions, such as WSBPEL and WS-CDL. However, these languages lack formal semantics, so that they do not allow the verification of the service composition behavior by means of properties such as the absence of deadlocks and livelocks. In this paper, we present a structured survey on initiatives in which formal description techniques were applied to specify and possibly verify service compositions. As a result of this study, we identified some open challenges and some topics for future work.
The FAMU experiment aims to accurately measure the hyperfine splitting of the ground state of the muonic hydrogen atom. A measurement of the transfer rate of muons from hydrogen to heavier gases is necessary for this ...
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