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Wyświetlanie 1-15 z 49
Tytuł:
Heterogeneous Indexing Register for Object Database
Autorzy:
Chromiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/106305.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
database
data integration
data
object database
Opis:
Even though the object oriented persistent stores has not gained large commercial adaptation rate, it still is an interesting research field in many aspects including the data integration. Persistent data integration is a very challenging goal in modern computer systems. This paper presents a proposal for application of effective indexing integration scheme for distributed and heterogeneous data environment using an object database as the central store.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2016, 16, 2; 7-13
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using advanced data mining and integration in environmental prediction scenarios
Autorzy:
Habala, O.
Hluchy, L.
Tran, V.
Krammer, P.
Seleng, M.
Powiązania:
https://bibliotekanauki.pl/articles/305607.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
data mining
data integration
meteorology
hydrology
Opis:
We present one of the meteorological and hydrological experiments performed in the FP7 project ADMIRE. It serves as an experimental platform for hydrologists, and we have used it also as a testing platform for a suite of advanced data integration and data mining (DMI) tools, developed within ADMIRE. The idea of ADMIRE is to develop an advanced DMI platform accessible even to users who are not familiar with data mining techniques. To this end, we have designed a novel DMI architecture, supported by a set of software tools, managed by DMI process descriptions written in a specialized high-level DMI language called DISPEL, and controlled via several different user interfaces, each performing a different set of tasks and targeting different user group.
Źródło:
Computer Science; 2012, 13 (1); 5-16
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Data Integration and Small Domain Estimation in Poland – Experiences and Problems
Autorzy:
Gołata, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/465898.pdf
Data publikacji:
2012
Wydawca:
Główny Urząd Statystyczny
Tematy:
Small domain estimation
data integration
Opis:
The aim of the study could be identified twofold. On the one hand, it was a presentation of Polish experiences as concerns the most important methodological issues of contemporary statistics. These are the problems of data integration (DI) and statistical estimation for small domains (SDE).On the other hand, attempts to determine relationship between these two groups of methods were undertaken. Given convergence of the objectives of both SDE and DI, that is: striving to increase efficiency of the use of existing sources of information, simulation study was conducted. It was aimed at verifying the hypothesis of synergies referring to combined application of both groups of methods: SDE and DI.
Źródło:
Statistics in Transition new series; 2012, 13, 1; 107-142
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lidarometry as a Variant of Integration of Photogrammetric and Laser Scanning Data
Autorzy:
Rzonca, A.
Majek, K.
Powiązania:
https://bibliotekanauki.pl/articles/114345.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
lidarometry
data integration
orthoscan
stereoscopy
Opis:
This publication aim is discussing the issue of lidarometry – a stereoscopic point cloud display for measurement purposes. The authors state that lidarometry constitutes a valuable variant of integration for photogrammetric and scanning data. A point cloud in lidarometry may be subject to stereoscopic observation and measurement to perform vectorization identically as in photogrammetry. Apart from 3D point cloud display enabled by several programmes in the world, the authors describe the method of synthetic stereograms generation using the artificial image pair sampling, Such solution presents an additional aspect of scanning and photogrammetric data integration and enables thorough analysis of the method. In this publication, the authors describe the genesis and variants of lidarometry. The authors determine the relation of lidarometric measurements accuracy to conventional stereophotogrammetric measurement accuracy. They also provide the optimum point cloud resolution for stereo measurements to terrain pixels size of the measured photograms.
Źródło:
Measurement Automation Monitoring; 2016, 62, 8; 268-273
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agent-based data integration framework
Autorzy:
Faber, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/305369.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
data integration
multi-agent systems
Opis:
Combining data from diverse, heterogeneous sources while facilitating a unified access to it is an important (albeit difficult) task. There are various possibilities of performing it. In this publication, we propose and describe an agent-based framework dedicated to acquiring and processing distributed, heterogeneous data collected from diverse sources (e.g., the Internet, external software, relational, and document databases). Using this multi-agent-based approach in the aspects of the general architecture (the organization and management of the framework), we create a proof-of-concept implementation. The approach is presented using a sample scenario in which the system is used to search for personal and professional profiles of scientists.
Źródło:
Computer Science; 2014, 15 (4); 389-410
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of Remote Sensing Data in a Cloud Computing Environment
Autorzy:
Sabri, Yassine
Bahja, Fadoua
Pet, Henk
Powiązania:
https://bibliotekanauki.pl/articles/2055265.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
remote sensing
data integration
cloud computing
big data
Opis:
With the rapid development of remote sensing technology, our ability to obtain remote sensing data has been improved to an unprecedented level. We have entered an era of big data. Remote sensing data clear showing the characteristics of Big Data such as hyper spectral, high spatial resolution, and high time resolution, thus, resulting in a significant increase in the volume, variety, velocity and veracity of data. This paper proposes a feature supporting, salable, and efficient data cube for time-series analysis application, and used the spatial feature data and remote sensing data for comparative study of the water cover and vegetation change. In this system, the feature data cube building and distributed executor engine are critical in supporting large spatiotemporal RS data analysis with spatial features. The feature translation ensures that the geographic object can be combined with satellite data to build a feature data cube for analysis. Constructing a distributed executed engine based on dask ensures the efficient analysis of large-scale RS data. This work could provide a convenient and efficient multidimensional data services for many remote sensing applications.
Źródło:
International Journal of Electronics and Telecommunications; 2022, 68, 1; 167--172
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Review of Methods of Combined Orientation of Photogrammetric and Laser Scanning Data
Autorzy:
Rzonca, A.
Powiązania:
https://bibliotekanauki.pl/articles/114401.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
laser scanning
photogrammetry
co-registration
data integration.
Opis:
The objective of the paper is to review the state of the art of analytical methods of integration of photogrammetric and laser scanning data which is an important scientific and practical issue. Basing on the conclusions included in previous studies, it can be observed that the analytical integration of photogrammetric and laser scanning data is an interesting area of research, especially in case of absolute orientation of images and point clouds in a sequential or one-stage adjustment process. The results of the state-of-the-art analysis are shown according to four division criteria: method of registration, workflow stage, data capture technology and calculation order. After presenting all aspects of the problem, the author proposes the two-step classification of variants of data analytical integration based on order of orientation calculation and methods of registration.
Źródło:
Measurement Automation Monitoring; 2018, 64, 3; 57-62
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of data from heterogeneous sources using ETL technology
Autorzy:
Macura, M.
Powiązania:
https://bibliotekanauki.pl/articles/305533.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
data integration
integration approaches
ETL technology
knowledge discovery from data
business intelligence
Opis:
Data integration is a crucial issue in the environments of heterogeneous data sources. At present, the afore-mentioned heterogeneity is becoming widespread. Based on various data sources, if we want to gain useful information and knowledge, we must solve data integration problems in order to apply appropriate analytical methods to comprehensive and uniform data. Such activity is known as knowledge discovery from the data process. Therefore, approaches to the data integration problem are very interesting and bring us closer to the “age of information”. This paper presents an architecture which implements knowledge discovery from the data process. The solution combines ETL technology and a wrapper layer known from mediated systems. It also provides semantic integration through connection mechanism between data elements. The solution allows for integration of any data sources and implementation of analytical methods in one environment. The proposed environment is verified by applying it to data sources in the foundry industry.
Źródło:
Computer Science; 2014, 15 (2); 109-132
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial microsimulation of personal income in Poland at the level of subregions
Autorzy:
Roszka, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/1193070.pdf
Data publikacji:
2019-08-30
Wydawca:
Główny Urząd Statystyczny
Tematy:
data integration
spatial microsimulation
small area estimation
synthetic data generation
Opis:
The paper presents an application of spatial microsimulation methods for generating a synthetic population to estimate personal income in Poland in 2011 using census tables and EU-SILC 2011 microdata set. The first section presents a research problem and a brief overview of modern estimation methods in application to small domains with particular emphasis on spatial microsimulation. The second section contains an overview of selected synthetic population generation methods. In the last section personal income estimation on NUTS 3 level is presented with special emphasis on the quality of estimates.
Źródło:
Statistics in Transition new series; 2019, 20, 3; 133-153
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Austempered Ductile Iron Manufacturing Data Acquisition Process with the Use of Semantic Techniques
Autorzy:
Wilk-Kołodziejczyk, D.
Kluska-Nawarecka, A. S.
Regulski, K.
Adrian, W.
Jaśkowiec, K.
Powiązania:
https://bibliotekanauki.pl/articles/355169.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
austempered ductile iron
thermal treatment
properties
process data
data integration
ontology
Opis:
The aim of this work was to propose a methodology supporting the task of collecting the comparative data on studies of the mechanical properties of ADI. Collecting of research data is an important step in the process of finding the optimum design solutions for newly made products - experimental data allow us properly calibrate the manufacturing process of ADI to let the final product achieve the required properties. Parameters of the ADI production process, i.e. the time and temperature of austenitising and austempering, as well as the alloying elements added to ductile iron affect the ADI properties. The design process can use research data collected, among others, from the Web. As stated in the article, the process of data acquisition can be supported by semantic technologies, including ontologies which are descriptive logic formalism.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 2117-2122
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heterogeneous Data Integration Architecture-Challenging Integration Issues
Autorzy:
Chromiak, M.
Grabowiecki, M.
Powiązania:
https://bibliotekanauki.pl/articles/106210.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
grid integration model
heterogeneous integration
distributed architecture
data integration
big data
distributed transaction
warehouse
ETL
OLAP
Opis:
As of today, most of the data processing systems have to deal with a large amount of data originated from numerous sources. Data sources almost always differ regarding its purpose of existence. Thus model, data processing engine and technology differ intensely. Due to current trend for systems fusion there is a growing demand for data to be present in a common way regardless of its legacy. Many systems have been devised as a response to such integration needs. However, the present data integration systems mostly are dedicated solutions that bring constraints and issues when considered in general. In this paper we will focus on the present solutions for data integration, their flaws originating from their architecture or design concepts and present an abstract and general approach that could be introduced as an response to existing issues. The system integration is considered out of scope for this paper, we will focus particularly on efficient data integration.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2015, 15, 1; 7-11
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Blob Extraction Algorithm in Detection of Convective Cells for Data Fusion
Autorzy:
Szuster, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/307700.pdf
Data publikacji:
2019
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
big data
blob extraction
data fusion
data integration
image processing
radar images
Opis:
Earth’s atmosphere is monitored by a multitude of sensors. It is the troposphere that is of crucial importance for human activity, as it is there that the weather phenomena take place. Weather observations are performed by surface sensors monitoring, inter alia, humidity, temperature and winds. In order to observe the developments taking place in the atmosphere, especially in the clouds, weather radars are commonly used. They monitor severe weather that is associated with storm clouds, cumulonimbuses, which create precipitation visible on radar screens. Therefore, radar images can be utilized to track storm clouds in a data fusion system. In this paper an algorithm is developed for the extraction of blobs (interesting areas in radar imagery) used within data fusion systems to track storm cells. The algorithm has been tested with the use of real data sourced from a weather radar network. 100% of convection cells were detected, with 90% of them being actual thunderstorms.
Źródło:
Journal of Telecommunications and Information Technology; 2019, 4; 65-73
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Georeferencing of close range photogrammetric data
Autorzy:
Bujakiewicz, A.
Podlasiak, P.
Zawieska, D.
Powiązania:
https://bibliotekanauki.pl/articles/131326.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Geodetów Polskich
Tematy:
indirect georeferencing
orientation
data integration
georeferencja pośrednia
orientacja
integracja danych
Opis:
The paper presents some general approaches for indirect georeferencing of close range photogrammetric data being acquired for various applications by the imaging systems of different types either independently or in integration. Various digital metric or non-metric cameras and terrestrial laser scanning systems, which register the objects to determine their shape and location, can be located either on the MMS moved vehicles or on the terrestrial stable stands. Various factors, such as objects’ location, dimension and shape as well as the form of data required and type of the photogrammetric imaging systems have the major effect on the approach to be used for georeferencing of photogrammetric data. In case of dynamic collection of imaging data, direct georeferencing is required. In this case, the GPS/INS systems of adequate accuracy for direct georeferencing of registered data, have to be ensured. Such systems allow to orient all collected data (cloud of points or discrete points for the objects) in the uniform coordinate system which can be later re-transformed to the final reference system in post processing stage. In case of imaging by the conventional metric or non-metric cameras located on the terrestrial stable stands, indirect georeferencing of data is usually executed in the post-processing stage. In many of close range applications, data collected by one or more photogrammetric acquisition systems located in various positions around the object, are integrated. This requires determination of orientation of all sets of photogrammetric data in the same reference system, which for close range applications is usually arbitrary selected. The indirect georeferencing approaches of close range imagery data require always a few control data, mostly points, either for a block of images or for each separate image/model. The methods are classified into two general groups: (1) multi-image exterior orientation, including self calibration, for orientation of images of similar or different scale and geometry taken by the metric and/or non metric cameras, in simultaneous adjustment of all photogrammetric data, and (2) the sequential. orientation of each image or model. The spatial location of control data for orientation of the block or separate model / image is determined either by the field survey or from the set of data already georeferenced, which were collected earlier by close range photogrammetric methods. In this paper, some approaches of indirect georeferencing of photogrammetric data for the selected objects, obtained only from imagery taken by metric and nonmetric cameras or in integration with data from terrestrial laser scanning, are presented.
Źródło:
Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2011, 22; 91-104
2083-2214
2391-9477
Pojawia się w:
Archiwum Fotogrametrii, Kartografii i Teledetekcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
System statystyki publicznej oparty na zintegrowanych źródłach danych
The system of public statistics based on integrated data sources
Autorzy:
Roszka, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/422893.pdf
Data publikacji:
2012
Wydawca:
Główny Urząd Statystyczny
Tematy:
integracja danych
rejestry administracyjne
spisy powszechne
data integration
administrative registers
censuses
Opis:
Zwiększające się zapotrzebowanie na rzetelną i aktualną informację na możliwie niskim poziomie agregacji jest rosnącym wyzwaniem dla polskiej statystyki publicznej. Zastosowanie integracji danych z różnych, w tym administracyjnych, źródeł umożliwia wykorzystanie informacji pełnej w sensie pokrycia oraz bogatej merytorycznie. Łączna obserwacja cech obserwowanych w oddzielnych zbiorach generuje efekt synergii zwiększający zasób wiedzy pochodzący z badań społeczno-ekonomicznych.
Increasing demand for reliable and current information at the lowest possible level of aggregation is a growing challenge for the Polish public statistics. Application of data integration of different, including administrative, sources enables the use of information in terms of full coverage and rich in substance. The joint observation of variables observed in separate data collections generate a synergy effect increasing amount of knowledge derived from socio-economic research.
Źródło:
Przegląd Statystyczny; 2012, 59, numer specjalny 2; 205-221
0033-2372
Pojawia się w:
Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integracja danych lidarowych i fotogrametrycznych w procesie automatycznego wykrywania obiektów
Integration of airborne lidar and photogrammetric data in the process of automatic object extraction
Autorzy:
Marmol, U.
Powiązania:
https://bibliotekanauki.pl/articles/130746.pdf
Data publikacji:
2009
Wydawca:
Stowarzyszenie Geodetów Polskich
Tematy:
integracja danych
LIDAR
ortofotomapa
wykrywanie obiektów
data integration
lidar
ortophoto
object extraction
Opis:
Artykuł przedstawia metodę integracji danych lidarowych i fotogrametrycznych w procesie automatycznego wykrywania obiektów. Zdjęcia lotnicze stanowią klasyczną metodę pozyskiwania informacji o przestrzeni. Ostatnie lata to coraz powszechniejsze stosowanie lidaru jako źródła informacji. Zdjęcia lotnicze cechują się możliwością wykrywania granic obiektów, ale w procesie ekstrakcji cech, często dochodzi do nadmiernego oszacowania lub zaniżenia liczby obiektów. Dane lidarowe dostarczają bezpośredniej informacji o wysokości obiektów, ale posiadają ograniczenia związane z dokładnym wyznaczeniem krawędzi obiektów. Można zatem powiedzieć, że techniki przetwarzania danych: fotogrametryczna i laserowa dostarczają danych komplementarnych, a ich integracja może przyczynić się do poprawy jakości uzyskiwanych wyników. W artykule przedstawiono badania nad integracją fotogrametrii i danych laserowych w procesie wykrywania obiektów 3D – budynków i drzew. W procesie automatycznej segmentacji zostały wykorzystane cechy teksturalne pochodzące ze zdjęć lotniczych. Obiekty 3D zostały wyodrębnione na podstawie danych lidarowych, jako różnica NMPT i NMT. Przeprowadzone badania ujawniły duży potencjał danych zintegrowanych w procesie automatycznego wykrywania obiektów
This paper describes a method of integrating LIDAR data and aerial images in the process of automatic object extraction. Aerial photos are classical method for obtaining spatial information. However, in recent years, LIDAR data has become more and more popular as a source of information. Aerial imagery has the ability to delineate object boundaries, but during feature extraction, the number of objects may be overestimated or underestimated. LIDAR data provide direct information about the height of an object, but have limitations when identifying boundaries. Therefore, we can say that photogrammetric sensors and LIDAR provide complementary data and their integration can improve the quality of the results. This paper presents a study of the integration of photogrammetry and LIDAR in the process of extraction of 3D objects: buildings and trees. Textural filters have been used in the automatic segmentation process. 3D objects have been separated from LIDAR data, as a DSM and DTM difference. The study has revealed the high potential and flexibility of integrated data in the automatic process of object extraction.
Źródło:
Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2009, 20; 275-284
2083-2214
2391-9477
Pojawia się w:
Archiwum Fotogrametrii, Kartografii i Teledetekcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 49

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