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Wyświetlanie 1-15 z 101
Tytuł:
A document clustering method based on ant algorithms
Autorzy:
Machnik, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/1943269.pdf
Data publikacji:
2007
Wydawca:
Politechnika Gdańska
Tematy:
ant algorithms
ant systems
document clustering
document grouping
Opis:
Ant Algorithms, particularly the Ant Colony Optimization (ACO) metaheuristic, are universal, flexible and scalable because they are based on multi-agent cooperation. The increased demand for effective methods of managing large collections of documents is a sufficient stimulus to place the research on new applications of ant-based systems in the area of text document processing. The author presents an implementation of such a technique in the area of document clustering. Details of the ACO document clustering method and results of experiments are presented.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2007, 11, 1-2; 87-102
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New middle Eocene formicid species from Germany and the evolution of weaver ants
Autorzy:
Dlussky, G.M.
Wappler, T.
Wedmann, S.
Powiązania:
https://bibliotekanauki.pl/articles/20319.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Middle Eocene
formicid species
Germany
evolution
weaver ant
ant
green ant zob.weaver ant
Insecta
Hymenoptera
Formicidae
Oecophylla
new species
male
gyne
worker
paleontology
Opis:
Two new species of weaver ant are described from the Eocene of Germany. Males and gynes of Oecophylla longiceps Dlussky sp. nov. are found in the middle Eocene (about 47 Ma) of Grube Messel, Germany. Males, gynes and two workers of O. eckfeldiana Dlussky sp. nov. are recorded from the middle Eocene (about 43 Ma) of Eckfeld maar, Germany. The two new species are among the oldest records of the extant genus Oecophylla. First adaptations for moving in the forest canopy are present in the workers of O. eckfeldiana. Even more specialized adaptations for arboreal life are found in the workers of O. brischkei from Baltic amber. The coexistence of two species in Baltic amber and in the Bembridge marls suggests that in these cases different ecological niches were realised by sympatric species. Comparisons of the queens from different fossil and extant species indicate morphological trends, partly connected with increasing fertility. Most likely Oecophylla originated in the early Paleogene in the Palaearctic realm, radiating strongly during the climatic changes of the Eocene–Oligocene transition.
Źródło:
Acta Palaeontologica Polonica; 2008, 53, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Actor-Network Theory in the Context of Place-Based Pedagogy
Autorzy:
Wieszaczewska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/628226.pdf
Data publikacji:
2018
Wydawca:
Fundacja Pro Scientia Publica
Tematy:
ANT
place-based pedagogy
Opis:
Space (and place) is a topic that is often the focus of researchers representing social and humanistic fields. Analyses of the significance of places to individuals and groups are carried out also on the basis of pedagogy. The subdiscipline which particularly emphasises the role of place is ‘place-based pedagogy’, and, on the Polish ground, so-called ‘pedagogika miejsca’. Therefore, pedagogues are interested in ways of giving meanings to places by their users, connections of the arrangement of space with its reception by individuals, space valorising and so on. In this article, the author presents the theoretical perspective of post-constructivism and the actor-network theory proposed by B. Latour and then developed and modified by other researchers, which is one of the most well-known (and recognised) strategies of a post-constructive reflection on reality. It can successfully become an approach in which pedagogical research related to the spaces in which people operate would be carried out, which would be a valuable complement to pedagogical considerations on place that has been known to date as of the phenomenological perspective.
Źródło:
Journal of Education Culture and Society; 2018, 9, 2; 167-178
2081-1640
Pojawia się w:
Journal of Education Culture and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Segmentation and edge detection based on modified ant colony optimization for iris image processing
Autorzy:
Biniaz, A.
Abbasi, A.
Powiązania:
https://bibliotekanauki.pl/articles/91674.pdf
Data publikacji:
2013
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
ant colony optimization
stocktickerACO
digital image processing
artificial ant
image processing
iris
Opis:
Ant colony optimization (stocktickerACO) is a meta-heuristic algorithm inspired by food searching behavior of real ants. Recently stocktickerACO has been widely used in digital image processing. When artificial ants move in a discrete habitat like an image, they deposit pheromone in their prior position. Simultaneously, vaporizing of pheromone in each iteration step avoids from falling in the local minima trap. Iris recognition because of its great dependability and non-invasion has various applications. simulation results demonstrate stocktickerACO algorithm can effectively extract the iris texture. Also it is not sensitive to nuisance factors. Moreover, stocktickerACO in this research preserves details of the various synthetic and real images. Performance of ACO in iris segmentation is compared with operation of traditional approaches such as canny, robert, and sobel edge detections. Experimental results reveal high quality and quite promising of stocktickerACO to segment images with irregular and complex structures.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2013, 3, 2; 133-141
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ant algorithm for AP-N aimed at optimization of complex systems
Autorzy:
Mikulik, J.
Zajdel, M.
Powiązania:
https://bibliotekanauki.pl/articles/375987.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
assignment problem
ant algorithm
optimization
Opis:
Assignment Problem (AP), which is well known combinatorial problem, has been studied extensively in the course of many operational and technical researches. It has been shown to be NP-hard for three or more dimensions and a few non-deterministic methods have been proposed to solve it. This paper pays attention on new heuristic search method for the n-dimensional assignment problem, based on swarm intelligence and comparing results with those obtained by other scientists. It indicates possible direction of solutions of problems and presents a way of behaviour using ant algorithm for multidimensional optimization complex systems. Results of researches in the form of computational simulations outcomes are presented.
Źródło:
Decision Making in Manufacturing and Services; 2010, 4, 1-2; 29-36
1896-8325
2300-7087
Pojawia się w:
Decision Making in Manufacturing and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Ant Algorithm for the Maximum Clique Problem in a Special Kind of Graph
Autorzy:
Schiff, K.
Powiązania:
https://bibliotekanauki.pl/articles/384647.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
ant algorithm
maximum clique problem
Opis:
The maximum clique problem is a very well-known NP-complete problem of the kind for which meta-heuristic algorithms, which include ant algorithms, have been developed. Well-known instances of problems enable the assessment of the quality of elaborated algorithms; however, there is a particular kind of graph in which each vertex has a nearly equal number of adjacent edges. It is very difficult to find a maximum clique in such a graph. The search for the maximum clique in this particular kind of graph is investigated and compared to the best known ant algorithms.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2015, 9, 2; 20-23
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of travel routes based on modified genetic and ant algorithms
Autorzy:
Rybchak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/410861.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
ant algorithm
ant colony genetic algorithm
hiking trails
algorytm mrówkowy
genetyczny algorytm mrówkowy
ścieżki turystyczne
Opis:
In the article, propose to use modified mating operators and initialization genetic and ant algorithms to solve transport problems in tourism. The article analyzes modern methods of optimization of routes used to transport tourists between the settlements of view of efficient use of resources. By analyzing the behavior of ant colonies, such as finding the shortest route by providing mating pheromones and features two solutions genetic algorithm developed algorithms for finding the optimal route, costing resources search distance, time, route, storing executed routes. The paper present description created system for mobile phones operating system IOS, which performs all operations listed above.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2017, 6, 2; 85-90
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Swarm intelligence for network routing optimization
Autorzy:
Dempsey, P.
Schuster, A.
Powiązania:
https://bibliotekanauki.pl/articles/309012.pdf
Data publikacji:
2005
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
network routing
swarm intelligence
ant algorithms
Opis:
This paper presents the results of a comparative study of network routing approaches. Recent advances in the field suggest that swarm intelligence may offer a robust, high quality solution. The overall aim of the study was to develop a framework to facilitate the empirical evaluation of a swarm intelligence routing approach compared to a conventional static and dynamic routing approach. This paper presents a framework for the simulation of computer networks, collection of performance statistics, generation and reuse of network topologies and traffic patterns.
Źródło:
Journal of Telecommunications and Information Technology; 2005, 3; 24-28
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ant colony optimization applied to the problem of choosing the best combination among m combinations of shortest paths in transparent optical networks
Autorzy:
Brasileiro, Í
Santos, I.
Soares, A.
Rabêlo, R.
Mazullo, F.
Powiązania:
https://bibliotekanauki.pl/articles/91731.pdf
Data publikacji:
2016
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
optical networks
routing
ant colony
simulation
Opis:
This paper presents an attempt to solve the problem of choosing the best combination among the M combinations of shortest paths in optical translucent networks. Fixed routing algorithms demands a single route to each pair of nodes. The existence of multiple shortest paths to some pairs of nodes originates the problem of choose the shortest path which fits better the network requests. The algorithm proposed in this paper is an adaptation of Ant Colony Optimization (ACO) metaheuristic and attempt to define the set of routes that fits in an optimized way the network conditions, resulting in reduced number of blocked requests and better adjusted justice in route distribution. A performance evaluation is conducted in real topologies by simulations, and the proposed algorithm shows better performance between the compared algorithms.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2016, 6, 4; 231-242
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jak budynki nas „zaskakują” Renowacja Alte Aula w Wiedniu
How Buildings ‘Surprise’. The Renovation of the Alte Aula in Vienna
Autorzy:
Yaneva, Albena
Bińczyk, Ewa
Tarkowski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2199839.pdf
Data publikacji:
2018
Wydawca:
Projekt Avant
Tematy:
renowacja
etnografia
sprawczość budynków
ANT
architektura
Opis:
Zarówno konserwatorzy, jak i modernizatorzy chcieliby przemawiać w imieniu dawnych budowli podczas dyskusji nad ich konserwacją oraz renowacją. Jednak w wielu przypadkach ignorują oni sprawczość budynków, nie uwzględniając różnorodności innych bytów wprawionych w ruch na scenie renowacji i konserwacji. Podliczając aktorów ludzkich i pozaludzkich uczestniczących w renowacji Alte Aula w Wiedniu, zajęłam się dynamiką tego procesu. Analizowałam bogactwo repertuaru działań budynku: jego uległość, posłuszeństwo, sprzeciw oraz opór.
Can old buildings faithfully transmit social meaning? Conservation studies have taught us for decades that buildings are valuable for their historical substance and symbolic value gradually acquired with time. Drawing on an Actor-Network-Theory-inspired perspective to tackle buildings, this article questions the philosophy of preservation studies and their definitions of building and agency. Following the process of renovation of the 17th century Alte Aula in Vienna, I explore its dynamics and unpredictable drifts. Renovating is not about transforming a passive and subservient object; it rather offers an experimental situation in which one can witness the building recalcitrance, i.e., its capacity to manifest itself as disobedient as possible to the protocol of renovation, to resist the attempts of control and to ‘surprise’ its makers. A building is, I argue here, a complex mediator that skilfully redistributes the agency among human and nonhuman participants in renovation, provokes contextual mutations and transforms social meanings.
Źródło:
Avant; 2018, 9, 3; 25-48
2082-6710
Pojawia się w:
Avant
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ANT-logia literatury
ANT-ology of Literature
Autorzy:
Kola, Adam F.
Powiązania:
https://bibliotekanauki.pl/articles/636722.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Bruno Latour
sociology of literature
cultural sociology of literature
ANT
Actor-Network Theory
ANT-ology of literature
Opis:
The main aim of the article is to propose a new version of sociology of literature under the name of ANT-ology of literature. In the first part of the text I sketch a map of modern controversies on status and situation of literature and literary studies in contemporary world. I underline the fact that descriptions of this situation proposed by literary and academic establishment is always critical and that in fact this diagnosis are presented from conservative point of view. Afterward I discuss classical approaches of sociology of literature starting in 19th century till present-day and cultural sociology of literature connected with cultural turn in humanities and social sciences. However, I underline that all those approaches are anthropo- and textocentric. Hence, the crucial is the last part of the article. I argue on the necessity of application of Bruno Latour’s Actor-Network Theory into the literary studies and I describe possible advantages of ANT-ology of literature. If we take seriously into consideration the ideas of human and nonhuman actors, collective instead of society, abandon the “context”, focus on empiric and case studies, and if we will follow the actors, etc., presented version of literary studies will be entirely different – redefined and renewed.
Źródło:
Przegląd Kulturoznawczy; 2013, 1(15); 35-47
1895-975X
2084-3860
Pojawia się w:
Przegląd Kulturoznawczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of the Detonation Properties, Propellant Impulses, Impact Sensitivities and Synthesis of Nitrated ANTA and NTO Derivatives
Autorzy:
Jensen, T. L.
Moxnes, J. F.
Kjønstad, E. F.
Unneberg, E.
Powiązania:
https://bibliotekanauki.pl/articles/358234.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
detonation properties
propellant impulses
DFT
NTO
ANT
Opis:
Nitrated derivatives of 5-amino-3-nitro-1,2,4-triazole (ANTA) and 3-nitro-1,2,4-triazol-5-one (NTO) were theoretically characterized with respect to their performance as high explosives and rocket propellants. The detonation velocity and the detonation pressure of the derivatives, calculated with EXPLO5 software, were at the same level or slightly above the performance of 1,3,5-trinitroperhydro-1,3,5-triazine (RDX). The results showed that compositions of 1,3,4-trinitro-1,2,4-triazol-5-one and glycidyl azide polymer (GAP) could give specific impulses just above 2600 m/s in rocket propellants. The sensitivities of the derivatives were evaluated using their heats of detonation, CHNO-ratios, free space in the crystal lattice and N−NO2 bond dissociation energy. The stability and sensitivity of several of the derivatives could be poor due to the low N−NO2 bond dissociation energies. The N−NO2 bond dissociation energies in the derivatives were calculated to be between 41 and 296 kJ/mol when the M06-2X/6-311+G(2d,p) functional was used. Synthetic routes for the most stable derivatives were proposed. In addition, preliminary studies of the chloride-assisted nitrolysis of NTO were performed. The infrared spectrum of the NTO derivative indicated that N−NO2 bonds were formed.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 2; 445-467
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ant colony metaphor in a new clustering algorithm
Autorzy:
Boryczka, U.
Powiązania:
https://bibliotekanauki.pl/articles/969824.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
data mining
cluster analysis
ant clustering algorithm
Opis:
Among the many bio-inspired techniques, ant clustering algorithms have received special attention, especially because they still require much investigation to improve performance, stability and other key features that would make such algorithms mature tools for data mining. Clustering with swarm-based algorithms is emerging as an alternative to more conventional clustering methods, such as k-means algorithm. This proposed approach mimics the clustering behavior observed in real ant colonies. As a case study, this paper focuses on the behavior of clustering procedures in this new approach. The proposed algorithm is evaluated on a number of well-known benchmark data sets. Empirical results clearly show that the ant clustering algorithm (ACA) performs well when compared to other techniques.
Źródło:
Control and Cybernetics; 2010, 39, 2; 343-358
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal design of membership functions of a fuzzy logic controller for an autonomous wheeled mobile robot using ant colony optimization
Autorzy:
Martínez, P.
Castillo, O.
Alanis, A.
Garcia, M.
Soria, J.
Powiązania:
https://bibliotekanauki.pl/articles/384537.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
fuzzy control
ant colony optimization
autonomous mobile robots
Opis:
In this paper we describe the application of a Simple ACO (S-ACO) as a method of optimization for membership functions' parameters of a fuzzy logic controller (FLC) in order to find the optimal intelligent controller for an Autonomous Wheeled Mobile Robot. Simulation results show that ACO outperforms a GA in the optimization of FLCs for an autonomous mobile robot.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2010, 4, 1; 43-48
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Ant Colony Algorithm for efficient ship routing
Autorzy:
Tsou, M.-C.
Cheng, H.-C.
Powiązania:
https://bibliotekanauki.pl/articles/258892.pdf
Data publikacji:
2013
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship routing
Ant Colony Algorithm
GIS
weather routing
Opis:
With the substantial rising of international oil price and global warming on the rise, how to reduce operational fuel consumption and decrease air pollution has become one of the pursued goals of green ship. Ship route planning is an indispensible part of the ship navigation process, especially in transoceanic crossing ship routing. The soundness of ship routing not only affects the safety of ship navigation but also the operation economy and environmental protection. This research is based on the platform of Electronic Chart Display and Information System (ECDIS), and founded on Ant Colony Algorithm (ACA) combined with the concept of Genetic Algorithm (GA), to model living organisms optimization behaviour to perform efficient ship route planning in transoceanic crossing. Besides the realization of route planning automation, ship routing will achieve the goal of optimum carbon dioxide reduction and energy conservation, and provide reference for route planning decision.
Źródło:
Polish Maritime Research; 2013, 3; 28-38
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 101

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