The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The harmonic plus noise model (HNM) is widely used for the modeling of audio signals. In this paper, we introduce perceptual frequency masking to the 2-band HNM, developed by Stylianou et al., applied to speech signals. An auditory model is used to recognize inaudible sinusoids, which will be removed from the set of model's parameters in order to reduce the data size for speech coding. The proposed...
This work presents a novel alternative to conventional linear homotopy with suboptimal settings for applications on object deformation. Proposed approach extends the linear mapping to exponential representations that provides smooth transitions when deforming objects while homotopy conditions are fulfilled. As well, we introduce a quality indicator based on the ratio between the coefficients curve...
Recommendation systems (RS) are important applications to help consumers to find interesting products in large databases available on line. A wide range of RS can be easily found such as Netflix and Amazon. In this paper, we propose a novel content-based approach for clothing recommendation, termed CRESA, which combines textual attributes, visual features and human visual attention to compose the...
Automatic analysis of semantic roles can be seen not only as one of the natural language processing steps in the human-machine interfaces, but also as a tool to support linguistics analysis of written or spoken texts, which has many applications in education or in telecommunication services. There does not exist an automatic system for semantic roles labeling for Slovak texts, mainly because of the...
A technique of parameter personalization of a 1d hemodynamic model is discussed and validated against physiological data of 1546 examined patients. Different parameter combinations were used, with the quality of prediction of the systolic and diastolic pressures used as the principle validation criterion. It is shown that with an appropriate personalization the model can provide adequate predictions...
Person names and location names are essential building blocks for identifying events and social networks in historical documents that were written in literary Chinese. We take the lead to explore the research on algorithmically recognizing named entities in literary Chinese for historical studies with language-model based and conditional-random-field based methods, and extend our work to mining the...
Many scientific fields generate, and require manipulation of big data. Known scientific data analysis systems, as well as traditional DBMSs, follow a pull-based architectural design, where the executed queries mandate the data needed. This design, while suitable for traditional transaction-based workloads where number of queries retrieve small parts of data located at various places of the database,...
In the last years, the electrocardiogram signal has become an important biometric modality due essentially to the physiological or/and behavioral characteristics variation of the heart among different individuals. The aim of this paper is to present a human identification approach using some time and frequency features of the QRS complex of the ECG signal. These features are extracted from a fractional...
OntoBio is a formal ontology based on biodiversity concepts and applied for data integration and automatic system interoperability. Despite having reached a consistent stage of maturity, part of the experts' knowledge is still not represented in the ontology, and is thus lost. The knowledge (implicit-explicit) when modelled and made available on the Web, becomes essential in the process of generating...
Electrocardiography (ECG) signal gives information about coronary heart disease based on electrophysiology of the heart. In a diagnostic analysis of biomedical signals such as ECG white noise is a major problem for extracting the features. The present work introduces the windowing technique to cope up with the white noise effects in the ECG signal. In this paper performance has been evaluated using...
In the area of malware analysis, static binary analysis techniques are becoming increasingly difficult with the code obfuscation methods and code packing employed when writing the malware. The behavior-based analysis techniques are being used in large malware analysis systems because of this reason. In these dynamic analysis systems, the malware samples are executed and monitored in a controlled environment...
Augmented reality is becoming the future of e-commerce, throw their mobile devices, customers have access to all kind of information, going from weather, news papers, shops and so on. Today's mobiles devices are so powerful to the point that they can be used as a platform of virtual try-on systems. Over this paper we present a virtual eye glasses try-on system based on augmented reality and LBP for...
In the strategic management field, the ecosystem concept is increasing significance. This paper provides an overview of 90 previous studies on the ecosystem concept published in leading academic journals in strategic management field and clarifies the four major research streams. The first perspective is the industrial ecosystem perspective, which is based on the concept of industrial ecology. The...
Handwritten signature recognition is one important component of biometric authentication. This is a central process in a broad range of areas requiring personal identification, such as security, legal contracts and bank transactions. Extensive efforts have been put into the research towards the verification of handwritten signatures, which contain biometric information. Although many successful methods...
Most biomaterials are undergoing a process degradation faster than other materials. The biomaterials are often combined with other materials by various methods of treatment in order to ensure certain performance and functionality. Maintenance biomaterials must take into account both their particular as well as the evolution of experience accumulated. Treatment of the biomaterial, in many cases does...
The continuous growth in quantity and diversity of life sciences data is triggering several bioinformatics challenges to be able to integrate and select desired information for later study. The majority of these data are scattered through independent systems disregarding interoperability features, which makes data integration processes not a trivial task. Consequently, several ETL (Extract-Transform-and-Load)...
Feature extraction techniques such as local binary patterns (LBP) or binarized statistical image features (BSIF) are crucial components in a biometric recognition system. The vast majority of relevant approaches employs spectral histograms as feature representation, i.e. extracted biometric reference data consists of sequences of histograms. Transforming these histogram sequences to a binary representation...
Freight transport modelling is always a challenge since its complexity and the often scarce data availability, and the varying rate of detail in available databases. After a long EU wide research and development period the TRANS-TOOLS model system was developed on European continental scale with extensions to the eastern Mediterranean countries, however it raised a number of concerns during the former...
The Nujiang is one of the regions where debris flow disasters occur frequently. For a long time, debris flow disasters have caused serious losses of life and property, so strengthening and controling the management of debris flow disasters and predict and alert debris flow disasters has become one of the main tasks for constructing and protecting ecological environment. Based on WebGIS, Internet of...
Reconstructing 3D face models from multiple uncalibrated 2D face images is usually done by using a single reference 3D face model or some gender/ethnicity-specific 3D face models. However, different persons, even those of the same gender or ethnicity, usually have significantly different faces in terms of their overall appearance, which forms the base of person recognition using faces. Consequently,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.