Gábor Hosszú

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The paper presents an overview of the 15 year long development of fetal phonocardiography including the works on the applied signal processing methods for identification of sound components. Based on the improvements achieved on this field, the paper shows that beyond the traditional CTG test the phonocardiography may be successfully applied for long-term(More)
The main purpose of this paper is to demonstrate the capability of fetal phonocardiographic measurements to indicate some congenital heart defects. It deals with the results of investigations carried out during the last four years involving 820 pregnant women. During the investigations fetal cardiac murmurs presenting typical waveforms and incidences of(More)
The two important problems of collaborative intrusion detection are aggregation and correlation of intrusion events. The enormous amount of data generated by detection probes requires significant network and computational capacity to be processed. In this article we show that a distributed hash table based approach can reduce both network and computational(More)
This paper presents a complex heuristic method for the evaluation of fetal heart sounds, applying simultaneously several algorithms, where the autocorrelation technique has been completed with the wavelet transform and the matching pursuit methods. In this way, a more reliable heart rate variability can be achieved and further parameters of the cardiac(More)
INTRODUCTION Currently, an important area of mobile communication is ad-hoc computer networks, where mobile devices need base stations however they form an overlay without any Internet-related infrastructure , which is a virtual computer network among them. In this case, the selective, location-related communication has not been solved completely.(More)
INTRODUCTION Phonocardiography is a suitable tool to test fetal well-being having been studied for years by many research laboratories, mostly due to its passive nature (Bassil & Dripps, 1989). A benefit of this is that long-term measurements, that are important because of the high variability of fetal heart activity parameters, become possible. A preferred(More)
The importance of the virtual communities' privacy and security problems comes into prominence by the rapid development of online social networks. This article presents the multiple threats currently plaguing the virtual world, Internet privacy risks, and recommendations and countermeasures to avoid such problems. New generations of users feel comfortable(More)
IntroductIon The importance of the host security problems come into prominence by the growth of the Internet, since the network means a breaking point to the intruders (Wang, Jha, McDaniel, & Livny, 2004). The article presents the e-collaboration related security questions, the main concepts of the intrusion BLOCKINdetection and the different classes of the(More)