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Dissertations / Theses on the topic 'Ant'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Clough, Elizabeth Anne, and n/a. "Factors Influencing Ant Assemblages and Ant Community Composition in a Sub-Tropical Suburban Environment." Griffith University. School of Environmental and Applied Science, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040719.141317.

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The main objective of this study was to examine the abundance and diversity of ants in suburban sites following vegetation removal or modification for development. This research examines the capacity of suburban sites to support ant diversity, which is dependent on the site characteristics and their surrounding environment. The study focused on 29 suburban garden and 3 suburban reserve sites on the Gold Coast, Queensland, Australia. This region, through continuing land development, undergoes ongoing habitat disturbance and modification. Ground-dwelling ants were collected by pitfall trapping

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2

Ali, Faiza, and Martin Schröder. "W.A.N.T : Weightlifting Ant." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264500.

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The purpose of this project is to create a light weight robotic version of an ant that can withstand great forces, trying to come close to the ant’s lifting technique as much as possible. This idea was chosen with inspiration from nature, especially from the obscure forces of an ant. These insects are proven to be able to lift and carry heavy loads, up to a thousand times their body weight. Various lifting technologies are used by several facilities today and therefore there is a need for improvements in this field. By trying to come close to an ant’s appearance and mimic certain ant movements

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3

Brown, Simon Geoffrey Archer, and simon brown@uwa edu au. "Preventing anaphylaxis to venom of the jack jumper ant (Myrmecia pilosula)." Flinders University. School of Medicine, 2003. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20050707.103356.

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Background: Myrmecia pilosula (the jack jumper ant, JJA) is the principal cause of ant venom anaphylaxis in Australia. Whereas honeybee and wasp venom allergy can be treated by venom immunotherapy (VIT), no such treatment is available for ant sting allergy. In addition, information on the natural history of JJA sting allergy is required to identify those most likely to benefit from immunotherapy. The main objectives of this research were to establish: (i) the prevalence, natural history and determinants of reaction severity for JJA allergy, and; (ii) the efficacy and tolerability of JJA VIT.

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4

Gu, Yuhua. "Ant clustering with consensus." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0002959.

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5

Clough, Elizabeth Anne. "Factors Influencing Ant Assemblages and Ant Community Composition in a Sub-Tropical Suburban Environment." Thesis, Griffith University, 2004. http://hdl.handle.net/10072/366528.

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The main objective of this study was to examine the abundance and diversity of ants in suburban sites following vegetation removal or modification for development. This research examines the capacity of suburban sites to support ant diversity, which is dependent on the site characteristics and their surrounding environment. The study focused on 29 suburban garden and 3 suburban reserve sites on the Gold Coast, Queensland, Australia. This region, through continuing land development, undergoes ongoing habitat disturbance and modification. Ground-dwelling ants were collected by pitfall trapping

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6

Feng, Yinda. "Ant colony for TSP." Thesis, Högskolan Dalarna, Datateknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:du-4824.

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The aim of this work is to investigate Ant Colony Algorithm for the traveling salesman problem (TSP). Ants of the artificial colony are able to generate successively shorter feasible tours by using information accumulated in the form of a pheromone trail deposited on the edges of the TSP graph. This paper is based on the ideas of ant colony algorithm and analysis the main parameters of the ant colony algorithm. Experimental results for solving TSP problems with ant colony algorithm show great effectiveness.

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7

Renfrew, David T. "TRAFFIC SIGNAL CONTROL WITH ANT COLONY OPTIMIZATION." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/190.

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Traffic signal control is an effective way to improve the efficiency of traffic networks and reduce users’ delays. Ant Colony Optimization (ACO) is a metaheuristic based on the behavior of ant colonies searching for food. ACO has successfully been used to solve many NP-hard combinatorial optimization problems and its stochastic and decentralized nature fits well with traffic flow networks. This thesis investigates the application of ACO to minimize user delay at traffic intersections. Computer simulation results show that this new approach outperforms conventional fully actuated control under

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8

Dostál, Marek. "Hledání nejkratší cesty pomocí mravenčích kolonií - Java implementace." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231155.

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This diploma thesis deals with ant colony optimization for shortest path problems. In the theoretical part it describes Ant Colony Optimization. In the practical part ant colony optimization algorithms are selected for the design and implementation of shortest path problems in the Java.

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9

Weeks, Jennifer Ashley. "Context dependent outcomes in a butterfly-ant mutualism: The role of ant nutrition and signaling." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/280223.

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Food-for-protection mutualisms, interactions between two species in which one species provides protection from aspects of the biotic environment in exchange for a nutritional reward, show an exceptional degree of context dependency. The occurrence, strength, and outcome of these interactions often depend on the ecological context in which they take place. However, the causes and consequences of such context-dependent variation remain poorly understood. The protection mutualism involving lycaenid butterflies and ants provides an opportunity to explore many aspects of the ecology and evolution o

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10

Laptik, Raimond. "Ant colony technologies for image processing." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2009~D_20100303_133726-51617.

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In this work ant colony technologies for image processing are analyzed. Modifications of Max-Min ant system for automatic image pre-processing are proposed. Image segmentation by multiple ant colonies technique based on pheromone competition is proposed. Modified ant system is implemented in FPGA and MicroBlaze core units influence on performance is analyzed.<br>Darbe nagrinėjamos skruzdžių kolonijų technologijos vaizdams apdoroti. Pasiūlomos max-min skruzdžių sistemos modifikacijos tinkamos automatizuoti pirminį vaizdų apdorojimą. Pristatoma vaizdų segmentavimo metodika grįsta skruzdžių kolon

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11

Krahner, André. "Impact of the invasive ant Linepithema humile on native ant assemblages on the western slopes of Table Mountain and implications for ant-butterfly associations." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/11046.

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The Argentine Ant, Linepithema humile (Hymenoptera: Formicidae), is one of the world's most successful invasive species and invades undisturbed Fynbos habitats in South Africa, displacing native arthropod species and affecting interspecific associations. In order to assess the impact of Li. humile on native ant assemblages and associations between ants and myrmecophilous butterflies (Lepidoptera: Lycaenidae) on the western slopes of Table Mountain (Cape Town, South Africa), adult butterfly density was scored and distribution of food plants were assessed at two sites.

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12

Markarian, Audrey E. "The effect of associative learning on antlion feeding and behavior /." Connect to online version, 2007. http://ada.mtholyoke.edu/setr/websrc/pdfs/www/2007/211.pdf.

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13

Mlot, Nathaniel J. "Fire ant self-assemblages." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50247.

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Fire ants link their legs and jaws together to form functional structures called self- assemblages. Examples include floating rafts, towers, bridges, and bivouacs. We investigate these self-assemblages of fire ants. Our studies are motivated in part by the vision of providing guidance for programmable robot swarms. The goal for such systems is to develop a simple programmable element from which complex patterns or behaviors emerge on the collective level. Intelligence is decentralized, as is the case with social insects such as fire ants. In this combined experimental and theoretical study, w

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14

Angus, Daniel John. "Niching ant colony optimisation." Swinburne Research Bank, 2008. http://hdl.handle.net/1959.3/36804.

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Thesis (Ph.D) - Swinburne University of Technology, Faculty of Information & Communication Technologies, Complex Intelligent Systems Laboratory, 2008.<br>Submitted in partial fulfilment for the degree of Doctor of Philosophy, Complex Intelligent Systems Laboratory, Faculty of Information and Communication Technologies, Swinburne University of Technology, 2008. Typescript. Includes bibliographical references (p. 169.181).

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15

Puterbaugh, Mary Norris. "Alpine plant-ant interactions /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841329.

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16

Brückner, Sven. "Return from the ant." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2000. http://dx.doi.org/10.18452/14615.

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Die vorliegende Dissertation hat einen technologischen und einen anwendungsbezogenen Schwerpunkt. Technologisch ordnen sich die präsentierten Forschungsergebnisse in das Gebiet der "Swarm Intelligence" (dt.: Schwarm-Intelligenz) ein. Swarm Intelligence ist ein Teilbereich der Informatik, der sich an der Überschneidung zwischen der Multi-Agenten Systeme Forschung der Künstlichen Intelligenz und dem Forschungsgebiet "Artificial Life" (dt.: Künstliches Leben) befindet. Im Gegensatz zur Swarm Intelligence im allgemeinen, überträgt der spezielle Ansatz "Synthetic Ecosystems" (dt.: synthetische Ökos

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17

Westerholm, Glenn. "Kadenssensor med en accelerometer och ANT+." Thesis, Linköpings universitet, Datorteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119070.

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Rapporten presenterar det examensarbetet som har gått ut på att undersöka möjligheterna att konstruera en sensor som mäter kadens med hjälp av en accelerometer. Implementation av kadensprofilen till ANT+ har gjorts för att möjliggöra synkronisering mellan en sportklocka och sensorn. Kadens är hur fort cyklisten trampar med pedalerna mätt i enheten Varv per minut vanligt förkortat RPM från engelskans Revolutions Per Minute. Hur fort en cyklist trampar påverkar kroppen på många olika sätt och ofta vill cyklisten veta vad aktuell kadens är för att optimera sin prestation. Den undersökta principen

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18

Choe, Dong-Hwan. "Necrophoric behavior of the Argentine ant, Linepithema humile (Mayr) (Hymenoptera: Formicidae), and its implications for horizontal transfer of slow-acting insecticides." Diss., UC access only, 2009. http://proquest.umi.com/pqdweb?index=106&did=1871866051&SrchMode=1&sid=1&Fmt=7&retrieveGroup=0&VType=PQD&VInst=PROD&RQT=309&VName=PQD&TS=1270485146&clientId=48051.

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19

McMahan, Linda. "Tn1 Insertions in the 3' Untranslated Region of the ant Operon of Bacteriophage P22 Affect ant Gene Expression and Alter ant mRNA Stability: a Thesis." eScholarship@UMMS, 1985. http://escholarship.umassmed.edu/gsbs_diss/249.

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Insertion of transposable elements within an operon has been known not only to abolish expression of the gene interrupted by the insertion, but also to exert a strong polar effect on the expression of downstream genes in the same operon. In this dissertation, I have shown that insertions of the transposable ampicillin-resistance element Tn1, either in the polar or nonpolar orientation, in the 3' untranslated region of the bacteriophage P22 antirepressor (ant) operon reduce the rate of upstream ant gene expression; insertions of Tn1 in the nonpolar orientation reduce the rate of ant gene ex

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20

Carroll, Amy K. "Characterization of the Human Adenine Nucleotide Translocase (ANT) Isoform-1 (ANT-1) and Isoform-3 (ANT-3) Effects on Mitochondrial Bioenergetics and Transmission of Apoptotic Signaling in Vitro." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/CarrollAK2004.pdf.

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21

McCallum, Thomas Edward Reid. "Understanding how knowledge is exploited in Ant algorithms." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/880.

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Ant algorithms were first written about in 1991 and since then they have been applied to many problems with great success. During these years the algorithms themselves have been modified for improved performance and also been influenced by research in other fields. Since the earliest Ant algorithms, heuristics and local search have been the primary knowledge sources. This thesis asks the question "how is knowledge used in Ant algorithms?" To answer this question three Ant algorithms are implemented. The first is the Graph based Ant System (GBAS), a theoretical model not yet implemented, and th

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22

Ballantyne, Gavin. "Ants as flower visitors : floral ant-repellence and the impact of ant scent-marks on pollinator behaviour." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2535.

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As flower visitors, ants rarely benefit a plant, commonly disrupting pollination by deterring other flower visitors, or stealing nectar. This thesis examines three aspects of ant-flower interactions, focusing on the occurrence of floral traits that prevent disruption of pollination and a novel means by which ants may influence pollinator behaviour. To assess which types of plant species possess ant-repelling floral traits I carried out a survey of 49 Neotropical plant species. Around a third of these species were repellent to the common generalist ant Camponotus novograndensis (Formicinae). Th

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23

Richardson, Thomas Owen. "Spatial and temporal organisation within ant societies." Thesis, University of the West of England, Bristol, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557142.

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In this thesis the organisation of colonies of the ant, Temnothorax albipennis, is investigated with a special focus on their spatial and temporal statistics. Individual-based modelling combined with analyses of experimental data are used extensively to infer the mechanisms that govern individual and collective behaviour. The unequal allocation of labour amongst different individuals, as manifested in skewed distributions of activity, is ubiquitous within the social insects. Early non-spatial individual-based models demonstrated that such skewed divisions of labour can self- organise through t

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24

Hatcher, Melanie J. "Activity patterns and organization within ant nests." Thesis, University of Bath, 1992. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332313.

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25

Žilinskaitė, Dovilė. "TAPYBA ANT ŠILKO „AGUONŲ PIEVA”." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100903_115229-82033.

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SANTRAUKA Tapyba ant šilko – tai menas, artimas jausmams. Ši technologija atsirado Kinijoje ir paplito po visą pasaulį, tik kiekviena tauta tapybą ant šilko suprato ir interpretavo savaip. Tapyba ant šilko šiandien yra labai populiarus ir mielas užsiėmimas. Tapybos ant šilko tecnikos domina ne tik menininkus, bet ir moteris, moytojus bei moksleives. Šis užsiėmimas koordinuoja mokinių veiklą, kuri sužadina smalsumą, aktyvumą, skatina mąstymą. Taigi mano darbo tema: Tapyba ant šilko „Aguonų pieva”. Pasirinkau šį augalo motyvą, nes aguonos – išlikimo ir trapumo simbolis, kuris rečiau sutinkamas

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26

Hayward, Rebecca K. "Resource distribution in ant colonies." Thesis, University of Bath, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527789.

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The distribution of resources is vital to any system or society. This is particularly true of social insect colonies where independent access to resources is not available to all members. Only a fraction of individuals are responsible for obtaining food for the colony from outside the nest. Surprisingly little is known about how this food is subsequently distributed to members inside the nest. The work in this thesis is focused around a set of food distribution experiments conducted using four colonies of the ant Temnothorax albipennis. The study applies a well-used technique in a new way to i

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27

Sosa-Calvo, Jeffrey. "Studies in neotropical ant diversity." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7195.

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Thesis (M.S.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Entomology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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28

Fonseca, Carlos Roberto Soerensen Dutra da. "Evolutionary ecology of Amazonian ant-myrmecophyte mutualisms." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296899.

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29

Coutinho, L?cia Loner. "Ant?nia sou eu, Ant?nia ? voc? : identidade de mulheres negras na televis?o brasileira." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2010. http://tede2.pucrs.br/tede2/handle/tede/4417.

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Made available in DSpace on 2015-04-14T14:41:12Z (GMT). No. of bitstreams: 1 423848.pdf: 1371708 bytes, checksum: fe484e113b73fb12327e1b4e9c991f0c (MD5) Previous issue date: 2010-03-26<br>Este trabalho tem em vista observar a identidade de mulheres negras a partir da s?rie de televis?o Ant?nia. Para tanto observaremos elementos da cultura e identidade negra e abriremos espa?o para a discuss?o das rela??es de g?nero e a uni?o entre os fatores etnia e g?nero. Posteriormente analisaremos o contexto de produ??o que envolveu o programa de duas formas, situando a conjun??o s?cio-pol?tica e cultura

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30

Eastwood, Rodney Gordon, and N/A. "Ant Association and Speciation in Lycaenidae (Lepidoptera): Consequences of Novel Adaptations and Pleistocene Climate Changes." Griffith University. Australian School of Environmental Studies, 2006. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20071130.134932.

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The butterfly family Lycaenidae (including the Riodinidae) contains an estimated 30% of all butterfly species and exhibits a diverse array of life history strategies. The early stages of most lycaenids associate with ants to varying degrees, ranging from casual facultative coexistence through to obligate association where the long-term survival of the butterfly is dependent on the presence of its attendant ants. Attendant ants guard the butterflies against predators and parasites during their vulnerable period of larval growth and pupation. The caterpillars, in return, reward the ants by pr

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31

Gunawardene, Nihara. "Arid zone ant communities of Western Australia." Thesis, Curtin University, 2003. http://hdl.handle.net/20.500.11937/1178.

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This thesis is prepared in three parts; the first part is a study of the ant species of the southern Carnarvon Basin, which was undertaken in order to determine the patterns of ant species distribution in this arid zone area. The distribution patterns were looked at in terms of biogeographical regions and they demonstrated the transitional nature of this particular area. Recommendations to alter the border between the South-west Province and the Eremaean Province were supported. The next chapter of this thesis analysed ant species from long unburnt and burnt areas of three main vegetation type

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32

Askut, Ann Ahu. "Population-Based Ant Colony Optimization for Multivariate Microaggregation." NSUWorks, 2013. http://nsuworks.nova.edu/gscis_etd/81.

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Numerous organizations collect and distribute non-aggregate personal data for a variety of different purposes, including demographic and public health research. In these situations, the data distributor is responsible with the protection of the anonymity and personal information of individuals. Microaggregation is one of the most commonly used statistical disclosure control methods. In microaggregation, the set of original records is first partitioned into several groups. The records in the same group are similar to each other. The minimum number of records in each group is k. Each record is r

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33

Ye, Shuyu, Xin Shen, and Lei Yang. "Motivation to participate in Ant Forest." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388878.

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As the largest third-party payment platform in China, Alipay has joined the team of making the world greener with the embedded cute mini APP--Ant Forest. Why are so many Alipay users willing to plant trees through Ant Forest? What are the motivations that affect their continued planting for months or even years? Based on the previous literature, we outlined a new framework to investigate the motivation in Ant Forest. The data were collected through a pilot study and semi-structured interviews with fourteen Chinese Alipay users; at the same time, they are Ant Forest participants. This article a

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34

Brugge, Jonathan. "Implementing and Simulating the Cross-Entropy Ant System." Thesis, Norwegian University of Science and Technology, Department of Telematics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10049.

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<p>The Cross-Entropy Ant System (CEAS) has been implemented in ns-3. The implementation has been validated against the latest ns-2 implementation and some extra simulations have been performed. Apart from that, experiences with ns-3 have been described as part of the thesis.</p>

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35

Blum, Christian. "Theoretical and practical aspects of ant colony optimization." Doctoral thesis, Universite Libre de Bruxelles, 2004. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211187.

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Combinatorial optimization problems are of high academical as well as practical importance. Many instances of relevant combinatorial optimization problems are, due to their dimensions, intractable for complete methods such as branch and bound. Therefore, approximate algorithms such as metaheuristics received much attention in the past 20 years. Examples of metaheuristics are simulated annealing, tabu search, and evolutionary computation. One of the most recent metaheuristics is ant colony optimization (ACO), which was developed by Prof. M. Dorigo (who is the supervisor of this thesis) and coll

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36

Campbell, Heather. "Ant diversity, coexistence and myrmecophyte interactions in Namibia." Thesis, University of Reading, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627640.

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Namibia has high levels of diversity and endemism, and is recognised as a priority region for conservation . Ants are important components of arid ecosystems, they are ecologically dominant and drive vital processes, but there are few studies of them in Namibia. Ant-plant interactions form a significant area of ecological research; a classic example being the swollen-thorn acacias of Africa. This thesis describes Namibian ground and arboreal ant diversity and dominance, and characterises the ecology of a novel ant-acacia mutualism. I demonstrate that ant species richness and composition is hig

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Mavrovouniotis, Michalis. "Ant colony optimization in stationary and dynamic environments." Thesis, University of Leicester, 2013. http://hdl.handle.net/2381/27971.

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The ant colony optimization (ACO) metaheuristic is inspired by the foraging behaviour of real ant colonies. Similarly with other metaheuristics, ACO suffers from stagnation behaviour, where all ants construct the same solution from early stages. In result, the solution quality may be degraded because the population may get trapped on local optima. In this thesis, we propose a novel approach, called direct communication (DC) scheme, that helps ACO algorithms to escape from a local optimum if they get trapped. The experimental results on two routing problems showed that the DC scheme is effectiv

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Oliver, Thomas Henry. "The ecology and evolution of ant-aphid interactions." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/4412.

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The evolution of species interactions is a fascinating subject, and one of vital importance if we are to understand how biological communities change over time. This thesis considers the interaction between aphids (Homoptera) and ants (Formicidae). Ants tend aphids for sugary honeydew and in return provide a variety of protective services. A literature review in Chapter 1 introduces the subject and provides background information. Chapter 2 considers ant- aphid interactions in a community setting. Specifically, I consider the fitness effects of the ant- aphid interaction on host plants. Net be

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Schoeman, Colin Stefan. "Synergistic impact of invasive alien plants and the alien Argentine ant on local ant assemblages in the Western Cape." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/21759.

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Thesis (MSc)--Stellenbosch University, 2008.<br>ENGLISH ABSTRACT: Alien trees, Pinus spp. and Eucalyptus spp., affect ants negatively in the Cape Floristic Region (CFR), a global biodiversity hotspot in South Africa. They reduce ant abundance and species richness, thus also changing ant assemblage structure. This is alarming, because almost 1300 species of plant species in the CFR are dispersed by certain indigenous ants, and thus there is concern for an indirect effect on indigenous plant assemblages. One of the most impacting ant species on seed dispersal is the invasive Argentine ant

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40

Abbott, Kirsten L. "Alien ant invasion on Christmas Island, Indian Ocean : the role of ant-scale associations in the dynamics of supercolonies of the yellow crazy ant, Anoplolepis gracilipes." Monash University, School of Biological Sciences, 2004. http://arrow.monash.edu.au/hdl/1959.1/5141.

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41

Gunawardene, Nihara. "Arid zone ant communities of Western Australia." Curtin University of Technology, Department of Environmental Biology, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=16212.

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This thesis is prepared in three parts; the first part is a study of the ant species of the southern Carnarvon Basin, which was undertaken in order to determine the patterns of ant species distribution in this arid zone area. The distribution patterns were looked at in terms of biogeographical regions and they demonstrated the transitional nature of this particular area. Recommendations to alter the border between the South-west Province and the Eremaean Province were supported. The next chapter of this thesis analysed ant species from long unburnt and burnt areas of three main vegetation type

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42

Gambardella, Luca Maria. "Coupling ant colony system with local search." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209045.

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In the last decades there has been a lot of interest in computational models and metaheuristics algorithms capable to solve combinatorial optimization problems. The recent trend is to define these algorithms taking inspiration by the observation of natural systems. In this thesis the Ant Colony System (ACS) is presented which has been inspired by the observation of real ant colonies. ACS is initially proposed to solve the symmetric and asymmetric travelling salesman problems where it is shown to be competitive with other metaheuristics. Although this is an interesting and promising result, it

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Bullnheimer, Bernd, Gabriele Kotsis, and Christine Strauß. "Parallelization strategies for the ant system." SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 1997. http://epub.wu.ac.at/1362/1/document.pdf.

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The Ant System is a new meta-heuristic method particularly appropriate to solve hard combinatorial optimization problems. It is a population-based, nature-inspired approach exploiting positive feedback as well as local information and has been applied successfully to a variety of combinatorial optimization problem classes. The Ant System consists of a set of cooperating agents (artificial ants) and a set of rules that determine the generation, update and usage of local and global information in order to find good solutions. As the structure of the Ant System highly suggests a parallel implemen

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Tegelaar, Karolina. "Dynamics of the aphid-ant mutualism." Doctoral thesis, Stockholms universitet, Zoologiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-111301.

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An appreciation of the role of mutualism is essential when studying ecology and evolution in most ecosystems. Information covering aspects of mutualistic interactions can serve as a complement to the somewhat one-sided perspective from the 1950’s and 60’s that is used when teaching biology. In this thesis I applied an in-depth approach in which variation in the interspecific interaction between Aphis fabae aphids and Lasius niger ants was studied both in the field and in the laboratory. An emphasis was put on studies spanning several consecutive aphid generations. This approach revealed import

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Shingleton, Alexander William. "The evolution of ant-aphid interactions." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621368.

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Galea, Michelle. "Fuzzy rules from ant-inspired computation." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/2701.

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This research identifies and investigates major issues in inducing accurate and comprehensible fuzzy rules from datasets. A review of the current literature on fuzzy rulebase induction uncovers two significant issues: A. There is a tradeoff between inducing accurate fuzzy rules and inducing comprehensible fuzzy rules; and, B. A common strategy for the induction of fuzzy rulebases, that of iterative rule learning where the rules are generated one by one and independently of each other, may not be an optimal one. FRANTIC, a system that provides a framework for exploring the claims above is devel

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Pugh, Nicholas John. "Examination scheduling using the Ant System." Thesis, Swansea University, 2004. https://cronfa.swan.ac.uk/Record/cronfa42701.

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This work is concerned with heuristic approaches to examination timetabling. It is demonstrated that a relatively new evolutionary method, the Ant System, can be the basis of a successful two-phase solution method. The first phase exploits ant feedback in order both to produce large volumes of feasible timetables and to optimise secondary objectives. The second phase acts as a repair facility where solution quality is improved further while maintaining feasibility. This is accomplished without increasing computational effort to unrealistic levels. The work builds on an existing implementation

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Diri-rieder, Youmna. "Finding Way Just Like An Ant." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1531841972488204.

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Chircop, Jan. "The Multiple Pheromone Ant Clustering Algorithm." Thesis, Aston University, 2014. http://publications.aston.ac.uk/24447/.

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Ant Colony Optimisation algorithms mimic the way ants use pheromones for marking paths to important locations. Pheromone traces are followed and reinforced by other ants, but also evaporate over time. As a consequence, optimal paths attract more pheromone, whilst the less useful paths fade away. In the Multiple Pheromone Ant Clustering Algorithm (MPACA), ants detect features of objects represented as nodes within graph space. Each node has one or more ants assigned to each feature. Ants attempt to locate nodes with matching feature values, depositing pheromone traces on the way. This use of mu

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Vincent, A. D. "Mathematical analyses of ant-based systems." Thesis, The University of Sydney, 2001. https://hdl.handle.net/2123/27803.

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This thesis examines two ant-based models: the first is a model of biological ants using mass recruitment; and the second is an ant-based search technique based on ants foraging using mass recruitment. Mass recruitment is the method by which foraging ants recruit other ants to food by the laying of pheromone trails. These models are developed as ordinary differential equation models. The analysis, in both cases, involves the construction of a. Lyapunov function and the examination of the equilibrium distributions of ants and pheromone. An analogy of thermodynamic ideal gas to foraging

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