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Wyszukujesz frazę "anomaly" wg kryterium: Temat


Tytuł:
Lead and iron contents in parsley being cultivated in the area of Chrzanów geochemical anomaly
Autorzy:
Mundała, P.
Szwalec, A.
Kędzior, R.
Telk, M.
Machaj, M.
Powiązania:
https://bibliotekanauki.pl/articles/184541.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
parsley
geochemical anomaly
food quality
Opis:
Selected research polygon is located in Trzebinia commune in the mid of the 80 km way from Kraków to Katowice (the Upper Silesia capital). The towns of Trzebinia, Chrzanów within the towns of Krzeszowice, Jaworzno, Mysłowice, have been creating a base of well-connected Kraków-Upper Silesia agglomeration. The inhabitants of Trzebinia commune are flexible on labour market, often commute to work in Kraków or Katowice. They have detached houses with gardens of one or two acres size, where "home-made", fresh, low-processed food could be produced. At the same time the area of Trzebinia Community belongs to Chrzanów geochemical anomaly, which is reflected in high values of cadmium, lead and zinc contents in the soils. This is the result of both natural and anthropogenic factors. The purpose of the paper was to evaluate lead and iron contents in roots and leaves of parsley being cultivated within the area of the anomaly. Considering, there is a positive geochemical anomaly, the lead contents in soil were low - the average value was 88.67 mg kg -1 d.m. and only two contents -218.98 and 119.35 exceeded 100 mg kg -1 d.m. On the other hand the lead contents in parsley roots were high, many times higher than the allowable values. The lead contents in parsley leaves were also high. Phytoaccumulation indices low, only one had the average value, but at their minimal range (1.02 and 10.3 adequately for leaves and roots). Translocation index of lead was close to one. The iron contents in soils were not high and fall within the scope of low and average ranges that occur in Polish soils. The iron contents in leaves were high, attractive from nutrition point of view.
Źródło:
Geology, Geophysics and Environment; 2014, 40, 4; 377-386
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relative Vorticity at the Pressure Level 850 hPa and SSTA in Southeast Asia Causing Precipitation Anomaly over Thailand
Autorzy:
Chansaengkrachang, K.
Luadsong, A.
Aschariyaphotha, N.
Powiązania:
https://bibliotekanauki.pl/articles/124741.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
relative vorticity
SSTA
precipitation anomaly
Opis:
Monthly relative vorticity and the relative vorticity anomaly at pressure level 850 hPa are computed to study circulation over Southeast Asia associated with the rainfall over Thailand. Monthly mean rainfall is averaged during the years 1979 to 2013 over Thailand to study the trends of rainfall and to analyze the difference between the SSTA in a dry year (1992) and a wet year (1999), and the precipitation anomaly. Rotation of the relative vorticity over Thailand during the rainy season in 1999 is supported by the westerly wind from the Indian Ocean. Relative vorticity over Thailand in October to December are brought by the wind from the east toward the west of the South China Sea. The positive value of relative vorticity in 1992 is less than in 1999. This is consistent with the precipitation anomalies in 1992 and 1999. Clearly, the rainfall and precipitation anomaly over Thailand in wet year 1992 and dry year 1999 are consistent with the relative vorticity at pressure level 850 hPa. Both years are also associated with the SSTA. It can be concluded that the large amounts of rainfall over Thailand are associated with the positive values of relative vorticity at pressure level 850 hPa and SSTA over Southeast Asia. The daily relative vorticity at pressure level 850 hPa and SSTA over Southeast Asia during Typhoon Linda is analyzed in the research. The positive value of relative vorticity is consistent with circulation during Typhoon Linda which is brought by winds from the South China Sea, and the SSTA is also unusual over the Gulf of Thailand and the Andaman Sea. These are the causes of violent storms in Thailand during Typhoon Linda.
Źródło:
Journal of Ecological Engineering; 2017, 18, 3; 1-12
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Database security : combining neural networks and classification approach
Autorzy:
Skaruz, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/1819254.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
database
security
anomaly detection
neural networks
Opis:
In the paper we present a new approach based on application of neural networks to detect SQL attacks. SQL attacks are those attacks that take the advantage of using SQL statements to be performed. The problem of detection of this class of attacks is transformed to time series prediction problem. SQL queries are used as a source of events in a protected environment. To differentiate between normal SQL queries and those sent by an attacker, we divide SQL statements into tokens and pass them to our detection system, which predicts the next token, taking into account previously seen tokens. In the learning phase tokens are passed to a recurrent neural network (RNN) trained by backpropagation through time (BPTT) algorithm. Then, two coefficients of the rule are evaluated. The rule is used to interpret RNN output. In the testing phase RNN with the rule is examined against attacks and legal data to find out how evaluated rule affects efficiency of detecting attacks. All experiments were conducted on Jordan network. Experimental results show the relationship between the rule and a length of SQL queries.
Źródło:
Studia Informatica : systems and information technology; 2019, 1-2(23); 95--115
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Incoherent Dictionary Learning for Sparse Representation in Network Anomaly Detection
Autorzy:
Andrysiak, Tomasz
Saganowski, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/1373708.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
dictionary learning
sparse representation
anomaly detection
Opis:
In this article we present the use of sparse representation of a signal and incoherent dictionary learning method for the purpose of network traffic analysis. In learning process we use 1D INK-SVD algorithm to detect proper dictionary structure. Anomaly detection is realized by parameter estimation of the analyzed signal and its comparative analysis to network traffic profiles. Efficiency of our method is examined with the use of extended set of test traces from real network traffic. Received experimental results confirm effectiveness of the presented method.
Źródło:
Schedae Informaticae; 2015, 24; 63-71
0860-0295
2083-8476
Pojawia się w:
Schedae Informaticae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of lip and/or palate clefts types among children form Lodz during years 1981-2015
Autorzy:
Antoszewski, Bogusław
Fijałkowska, Marta
Powiązania:
https://bibliotekanauki.pl/articles/1392644.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
cleft
lip
palate
type of anomaly
Opis:
Introduction: Cleft lip and/or palate are the most common face malformations. The clinical picture of these anomalies is very variable. Cleft can include only the lip and/or alveolus, palate or all of these structures can be clefted. Aim: The aim of this paper is to present all particular types of clefts, their relationship to gender and body side in the group of children born in Lodz during the years 1981-2015. Material and method: The study group included 434 patients with facial clefts (218 males and 216 females) in the age between 4 weeks to 18 years who were born in Lodz during years 1981-2015. Results: In the analyzed group, there were 181 palate clefts (41.7%), 156 lip and palate clefts (36%) and 97 lip clefts (22.3%). A detailed analysis of clefts types showed that isolated palate clefts are definitely more frequent in females than males (112 vs. 69), while lip and palate clefts in boys than girls (96 vs. 60), furthermore left-sided clefts are more common than right-sided. Conclusions: During 35 years, the most common type of anomaly in children born in Lodz were palate clefts, followed by lip and palate clefts and the less frequent lip clefts. Palate clefts are more common in girls, while lip and palate clefts in boys. Left-sided clefts are two times more common than right-sided clefts.
Źródło:
Polish Journal of Surgery; 2018, 90, 3; 1-6
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anomalie platynowców w historii Ziemi
PGE anomalies in Earths history
Autorzy:
Wieczorek, Anna
Brachaniec, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1033071.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
PGE
anomaly
geology
impact
platinum-group elements
Opis:
The platinum-group elements comprise a very small percentage of elements in the earth’s crust. The primary sources of them are meteorite impacts and volcanism. The study of PGEs anomaly in sediment profiles as a possible indicator of impact began in 1980, when was suggested a link between high levels of iridium and the mass extinction event in Late Cretaceous.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2016, 7; 177-181
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niejednoznaczność transformacji UML-GML
UML-GML transformation ambiguity
Autorzy:
Chojka, A.
Powiązania:
https://bibliotekanauki.pl/articles/346431.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Informacji Przestrzennej
Tematy:
UML
GML
kodowanie
niejednoznaczność
anomalia
encoding
ambiguity
anomaly
Opis:
Uchwalenie w Polsce ustawy o infrastrukturze informacji przestrzennej, która jest transpozycją Dyrektywy INSPIRE spowodowało konieczność nowelizacji wielu ustaw i przepisów prawnych, w tym ustawy prawo geodezyjne i kartograficzne. Postanowiono zastąpić instrukcje i wytyczne rozporządzeniami Rady Ministrów lub odpowiedniego ministra, które z jednej strony stanowią załączniki do ustawy prawo geodezyjne i kartograficzne, a z drugiej strony wprowadzają w życie niektóre zalecenia Dyrektywy INSPIRE. Integralną częścią opracowywanych w Głównym Urzędzie Geodezji i Kartografii rozporządzeń są schematy aplikacyjne UML oraz GML, które definiują strukturę informacyjną baz danych, odpowiednich dla danego rozporządzenia. Jednak, mimo iż schematy te zostały przygotowane zgodnie z normami ISO serii 19100 w dziedzinie informacji geograficznej, w trakcie ich tworzenia napotkano wiele problemów technicznych związanych z transformacją UML-GML. W artykule, na przykładzie schematów aplikacyjnych UML i GML opracowanych w ramach prac GUGiK związanych z implementacją postanowień Dyrektywy INSPIRE, omówiono niejednoznaczności związane z przekształcaniem UML na GML oraz związane z tym błędy i anomalia. Rozważono również, jak zaradzić tego typu niejednoznacznościom, jak zapewnić jedną drogę przekształcania schematu aplikacyjnego UML na odpowiadający mu schemat aplikacyjny GML.
Passing the “Spatial Information Infrastructure Law” in Poland, that is a transposition of the INSPIRE Directive, involved the necessity of many secondary acts and corresponding changes in other Laws, among others the “Geodetic and Cartographic Law”. Decision was made to replace the existing instructions and guidelines by regulations of the Council of Ministers or relevant minister that, on the one hand, become annexes to the “Geodetic and Cartographic Law” and, on the other hand, implement the recommendations of the INSPIRE Directive. An integral part of these regulations elaborated in the Head Office of Geodesy and Cartography in Poland are the UML and GML application schemas that define information structures of databases, corresponding to each regulation. Although these schemas were worked out according to the ISO 19100 series of International Standards in the Geographic Information (Geoinformation/Geomatics) domain, many technical problems connected with UML-GML transformation were identified during their preparation. In this paper, on examples of UML and GML application schemas prepared in the Head Office of Geodesy and Cartography in Poland within the INSPIRE Directive implementation works, some ambiguities concerning UML to GML transformation were discussed as well as some errors and anomalies connected with this issues. Questions how to resolve this ambiguity and how to ensure single way in changing UML application schema into corresponding GML application schema were also considered.
Źródło:
Roczniki Geomatyki; 2013, 11, 1(58); 21-32
1731-5522
2449-8963
Pojawia się w:
Roczniki Geomatyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detecting anomalies in advertising web traffic with the use of the variational autoencoder
Autorzy:
Gabryel, Marcin
Lada, Dawid
Filutowicz, Zbigniew
Patora-Wysocka, Zofia
Kisiel-Dorohinicki, Marek
Chen, Guang Yi
Powiązania:
https://bibliotekanauki.pl/articles/2147149.pdf
Data publikacji:
2022
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
anomaly detection
web traffic
ad fraud
variational autoencoder
Opis:
This paper presents a neural network model for identifying non-human traffic to a website, which is significantly different from visits made by regular users. Such visits are undesirable from the point of view of the website owner as they are not human activity, and therefore do not bring any value, and, what is more, most often involve costs incurred in connection with the handling of advertising. They are made most often by dishonest publishers using special software (bots) to generate profits. Bots are also used in scraping, which is automatic scanning and downloading of website content, which actually is not in the interest of website authors. The model proposed in this work is learnt by data extracted directly from the web browser during website visits. This data is acquired by using a specially prepared JavaScript that monitors the behavior of the user or bot. The appearance of a bot on a website generates parameter values that are significantly different from those collected during typical visits made by human website users. It is not possible to learn more about the software controlling the bots and to know all the data generated by them. Therefore, this paper proposes a variational autoencoder (VAE) neural network model with modifications to detect the occurrence of abnormal parameter values that deviate from data obtained from human users’ Internet traffic. The algorithm works on the basis of a popular autoencoder method for detecting anomalies, however, a number of original improvements have been implemented. In the study we used authentic data extracted from several large online stores.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2022, 12, 4; 255--266
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ciało „nienormalne”. O roli anomalii w rozwoju nauk biologicznych
“Non-Normal Body.” On the Role of Anomaly in the Development of Biological Sciences
Autorzy:
Leśniewska, Małgorzata
Leśniewski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/31343584.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Filozofii i Socjologii PAN
Tematy:
anomalia
ewolucja
rozwój
evo-devo
anomaly
evolution
development
Opis:
W ostatnich latach odkryto szereg anomalii u osobników gatunku Haplophilus subterraneus (Shaw, 1789) w gromadzie Chilopoda. Ten szczególny przypadek ciała zdeformowanego prowokuje do ponownego odczytania historii i kształtowania się postaw kulturowych wobec ciał obarczonych anomaliami. W artykule prezentujemy zmiany postrzegania, postaw oraz interpretacji form anomalnych od zdziwienia czy przerażenia aż po odczytanie, które umożliwiło olbrzymi postęp w nauce i wyjaśnieniu wielu elementów procesu rozwoju organizmów oraz ich ewolucji.
In recent years a number of anomalies in specimens of the species Haplophilus subterraneus (Shaw, 1789) in the class Chilopoda were discovered. This particular case of the deformed body provokes to reinterpretation of the history and evolution of cultural attitudes towards the body affected by malformations. In this paper we present changes of perceptions, attitudes and interpretations of anomalous forms— from surprise or horror to an interpretation which results in a great progress in science and in explanations of many elements of developmental processes and evolution of organisms.
Źródło:
Filozofia i Nauka; 2017, 5; 49-60
2300-4711
2545-1936
Pojawia się w:
Filozofia i Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Representativeness analysis and possible applications of partial network data flows
Autorzy:
Bolanowski, M.
Paszkiewicz, A.
Wroński, M.
Żegleń, R.
Powiązania:
https://bibliotekanauki.pl/articles/114308.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
link aggregation control protocol
network security
network anomaly detection
Opis:
A new approach to statistical analysis of network flows and its possible application to statistical anomaly detection in high bandwidth communication networks are presented in the paper. The whole data stream was divided into smaller flows using Link Aggregation Control Protocol (LACP). A statistical analysis of the resulting flows shows that a single stream separated from the overall network traffic is representative when it comes to statistical anomaly detection. Such an approach allows the reduction of hardware resources needed to detect anomalies, and makes such a detection possible in high traffic communication systems.
Źródło:
Measurement Automation Monitoring; 2016, 62, 1; 29-32
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Architecture of maritime awareness system supplied with external information
Autorzy:
Stróżyna, M.
Małyszko, J.
Węcel, K.
Filipiak, D.
Abramowicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/320420.pdf
Data publikacji:
2016
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
maritime awareness
AIS
data fusion
information extraction
anomaly detection
Opis:
In this paper, we discuss a software architecture, which has been developed for the needs of the System for Intelligent Maritime Monitoring (SIMMO). The system bases on the state-of-the-art information fusion and intelligence analysis techniques, which generates an enhanced Recognized Maritime Picture and thus supports situation analysis and decision-making. The SIMMO system aims to automatically fuse an up-to-date maritime data from Automatic Identification System (AIS) and open Internet sources. Based on collected data, data analysis is performed to detect suspicious vessels. Functionality of the system is realized in a number of different modules (web crawlers, data fusion, anomaly detection, visualization modules) that share the AIS and external data stored in the system’s database. The aim of this article is to demonstrate how external information can be leveraged in maritime awareness system and what software solutions are necessary. A working system is presented as a proof of concept.
Prezentowany artykuł omawia architekturę oprogramowania opracowanego na potrzeby projektu System for Intelligent Maritime Monitoring (SIMMO). System ten bazuje na najnowszych osiągnięciach w dziedzinach fuzji oraz inteligentnej analizy danych w celu generowania wzbogaconego obrazu sytuacji na morzu i wspomagania decyzji. SIMMO w sposób automatyczny łączy dane dotyczące ruchu morskiego z systemu AIS z danymi pochodzącymi z otwartych źródeł internetowych. Dzięki zebranym danym możliwa jest analiza w celu wykrycia podejrzanych zachowań na morzu. Funkcjonalność systemu stanowi wypadkową zawartych w nim modułów (ekstrakcja danych, fuzja danych, detekcja anomalii, wizualizacja) współdzielących dostęp do baz z danymi AIS oraz z zewnętrznych źródeł. Celem artykułu jest demonstracja sposobu wykorzystywania zewnętrznych informacji w systemach przeznaczonych do monitorowania ruchu morskiego, a także prezentacja działającego systemu.
Źródło:
Annual of Navigation; 2016, 23; 135-149
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Crowdsourced Driving Comfort Monitoring
Autorzy:
Badurowicz, Marcin
Montusiewicz, Jerzy
Przyłucki, Sławomir
Powiązania:
https://bibliotekanauki.pl/articles/2023307.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
accelerometer
anomaly detection
roads quality
road artefacts
quality monitoring
Opis:
In this paper, the authors are showing a calculation of the road quality index called Simple Road Quality Index (SRQI) using the weight provided by the amateur drivers to best possibly rate their comfort on driving on that road. The index is calculated from acceleration data acquired by the smartphone application and is aggregated in a crowdsourcing system for the classification of road quality using the fuzzy membership function. The paper shows that the proposed index correctly shows road quality changes over time and may be used as a way to mark roads to be avoided or needs to be repaired. The numerical experiment was based on the same street in Lublin, Poland, in 2015-2021 and is correctly showing that the quality of analyzed roads deteriorated over time, especially in the winter season.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 3; 309-317
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An anomaly within the genital system in a female Ascaris suum Goeze
Autorzy:
Templin, J.
Napiorkowska, T.
Szczepanik, M.
Powiązania:
https://bibliotekanauki.pl/articles/6272.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
anomaly
genital system
female
reproductive system
Ascaris suum
endoparasite
Źródło:
Annals of Parasitology; 2012, 58, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
VoIP Anomaly Detection - selected methods of statistical analysis
Autorzy:
Dymora, P.
Mazurek, M.
Jaskółka, S.
Powiązania:
https://bibliotekanauki.pl/articles/106150.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Hurst factor
anomaly detection
self-similarity
long-range dependence
Opis:
Self-similarity analysis and anomaly detection in networks are interesting fields of research and scientific work of scientists around the world. Simulation studies have demonstrated that the Hurst parameter estimation can be used to detect traffic anomaly. The actual network traffic is self-similar or long-range dependent. The dramatic expansion of applications on modern networks gives rise to a fundamental challenge to network security. The Hurst values are compared with confidence intervals of normal values to detect anomaly in VoIP.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2016, 16, 2; 14-19
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Carapace anomalies of pond turtles (Emys orbicularis) from the Poleski National Park, from the hatch of 2008
Anomalie karapaksu żółwi błotnych (Emys orbicularis) z Poleskiego Parku Narodowego z lęgu 2008 roku
Autorzy:
Kosik, E.
Wójcik, M.
Beeger, S.
Rozempolska-Rucińska, I.
Powiązania:
https://bibliotekanauki.pl/articles/2196894.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
carapace anomaly
pond turtle
Emys orbicularis
Polesie National Park
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica; 2013, 31, 1; 34-42
0239-4243
2083-7399
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł

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