Autor: Afanasyeva, O. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Development and research of additional parameters of steganographic systems
Autorzy:: Afanasyeva, O.
Powiązania:: https://bibliotekanauki.pl/articles/135452.pdf
Data publikacji:: 2016
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: steganosystem
digital environment
hiding messages
parameter of data concealing
steganogram
Opis:: This paper contains research on and methods of determining values for basic parameters of steganographic systems. In particular, a parameter of concealing the presence of information in a digital environment is researched. Using this particular parameter increases the degree of protection of a message introduced into a digital environment. This parameter is one of the fundamental ones in case of implementation of a steganalysis system. Besides that, this paper contains a review of parameters of redundancy of a digital environment and the parameter of steganogram resistance to technological transformations in digital environments.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 48 (120); 161-170
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Peculiarities of use of speech acoustic environment while embedding into it of hidden message codes
Autorzy:: Korostil, Y.
Afanasyeva, O.
Powiązania:: https://bibliotekanauki.pl/articles/360624.pdf
Data publikacji:: 2013
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: communication channel
model
message
hidden message
acoustic message
Opis:: The problems of embedding of message codes into Acoustic environment of speech are researched. The peculiarities of speech perception by human hearing are analyzed. As an example of acoustic Messager environment and codes of hidden messages embedded into it is reviewed a channel of mobile Communications in the part of transformations which are implemented with acoustic signals. Approach to build a model of process of transmission of speech via non-linear channel basing on imagination about speech signals spectrum is developed. The proposals on methods of use of such models for analysis and interpretation of distortions of signals made by transformations, implemented in example channel are presented.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 33 (105); 46-50
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Tasks of data refreshment in information systems
Autorzy:: Afanasyeva, O.
Korostil, O.
Powiązania:: https://bibliotekanauki.pl/articles/114085.pdf
Data publikacji:: 2016
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: refreshment
information systems
social tasks
information image
utilization parameters
interpretational descriptions
refreshment measure
Opis:: In this work is resolved task of monitoring of databases, functioning for a long period of time and serving the end users. Data of such databases are characterized by a number of parameters one of which is their actuality. For example, collection of outdated data leads to overload of databases. So, such data need to be removed from the databases. In this work is resolved the task of detection of various parameters of data nd conditions, determining necessity of their removal from the databases. Due to this, during the long term use of the databases, the last ones will be automatically cleaned up from outdated data preventing the database from overload.
Źródło:: Measurement Automation Monitoring; 2016, 62, 3; 114-117
2450-2855
Pojawia się w:: Measurement Automation Monitoring
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Hiding data in text environments and their parameters
Autorzy:: Afanasyeva, O. Y.
Korostil, J. M.
Powiązania:: https://bibliotekanauki.pl/articles/359001.pdf
Data publikacji:: 2014
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: hiding
steganography
dictionaries
semantic methods
extraction
message
digital text environment
Opis:: In this study, the parameters have been developed, characterized by the invisibility level of the message, which is embedded in a text environment, and methods which determine the values of these parameters. Also a review of the system composition of steganography, which is oriented to the use of text digital environments. Also included is the concept of semantic vocabulary of digital environments and text messages. Were also made analysis methods for implementing messages, depending on the fit of these dictionaries.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 38 (110); 10-14
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

Artykuł

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