Relevant bibliographies by topics / Autonomous search / Dissertations / Theses
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Dissertations / Theses on the topic 'Autonomous search'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2022

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1

Peterson, John Ryan. "Autonomous Source Localization." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/97954.

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This work discusses the algorithms and implementation of a multi-robot system for locating radioactive sources. The estimation algorithm presented in this work is able to fuse measurements collected by γ-ray spectrometers carried by an unmanned aerial and unmanned ground vehicle into a single consistent estimate of the probability distribution over the position of a point source in an environment. By constructing a set of hypotheses on the position of the point source, this method converts a non-linear problem into many independent linear ones. Since the underlying model is probabilistic, cand
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2

Cavallin, Kristoffer, and Peter Svensson. "Semi-Autonomous,Teleoperated Search and Rescue Robot." Thesis, Umeå University, Department of Computing Science, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-31928.

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<p>The interest in robots in the urban search and rescue (USAR) field has increased the last two decades. The idea is to let robots move into places where human rescue workers cannot or, due to high personal risks, should not enter.In this thesis project, an application is constructed with the purpose of teleoperating a simple robot. This application contains a user interface that utilizes both autonomous and semi-autonomous functions, such as search, explore and point-and-go behaviours. The purpose of the application is to work with USAR principles in a refined and simplified environment, and
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3

Earnest, Caleb A. "Dynamic action spaces for autonomous search operations." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/46549.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2005.<br>Includes bibliographical references (p. 148-150).<br>This thesis presents a new approach for a Navy unmanned undersea vehicle (UUV) to search for and detect an evading contact. This approach uses a contact position distribution from a generic particle filter to estimate the state of a single moving contact and to plan the path that minimizes the uncertainty in the location of the contact. The search algorithms introduced in this thesis will implement a motion planner that searches for a
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4

Beck, Zoltan. "Collaborative search and rescue by autonomous robots." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/411031/.

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In recent years, professional first responders have started to use novel technologies at the scene of disasters in order to save more lives. Increasingly, they use robots to search disaster sites. One of the most widely and successfully used robot platforms in the disaster response domain are unmanned aerial vehicles (UAVs). UAVs allow remote inspection and mapping. They are able to provide high resolution imagery and often need minimal infrastructure to fly. This allows settings where multiple UAVs are airborne accelerating the information gathering from the disaster site. However, current de
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5

Hammerseth, Vegard B. "Autonomous Unmanned Aerial Vehicle In Search And Rescue." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22880.

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This report presents a way of using autonomous drones to enhance search and rescue operations and takes the first steps in bringing the system to life. By using autonomous drones, less experience is required by the rescue personnel and drone specialists become excessive in this matter. Due to autonomy a drone can operate outside a valid radio link. Hence, when signal is lost, the craft can continue to search, buffer the information and send it when the link becomes active. By creating affordable drones the threshold decreases for deploying a unit in bad weather or other missions where the feed
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6

Ryu, Kun Jin. "Autonomous Robotic Strategies for Urban Search and Rescue." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/19194.

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This dissertation proposes autonomous robotic strategies for urban search and rescue (USAR) which are map-based semi-autonomous robot navigation and fully-autonomous robotic search, tracking, localization and mapping (STLAM) using a team of robots. Since the prerequisite for these solutions is accurate robot localization in the environment, this dissertation first presents a novel grid-based scan-to-map matching technique for accurate simultaneous localization and mapping (SLAM). At every acquisition of a new scan and estimation of the robot pose, the proposed technique corrects the estimation
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7

Finegan, Edward Graham. "Intelligent Autonomous Data Categorization." VCU Scholars Compass, 2005. http://scholarscompass.vcu.edu/etd/1343.

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The goal of this research was to determine if the results of a simple comparison algorithm (SCA) could be improved by adding a hyperspace analogue to language model of memory (HAL) layer to form NCA. The HAL layer provides contextual data that otherwise would be unavailable for consideration. It was found that NCA did improve the results when compared to SCA alone. However, NCA added complexity problems that limit its practicality. The complexity of this algorithm is On3 where n is equal to the number of unique symbols in the data. While there is a relativity reasonable soft upper bound for th
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8

Compton, Mark A. "Minefield search and object recognition for autonomous underwater vehicles." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/30604.

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9

Ambrose-Thurman, Andrew Michael Luke. "Autonomous, collaborative, unmanned aerial vehicles for search and rescue." Thesis, Durham University, 2014. http://etheses.dur.ac.uk/10652/.

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Search and Rescue is a vitally important subject, and one which can be improved through the use of modern technology. This work presents a number of advances aimed towards the creation of a swarm of autonomous, collaborative, unmanned aerial vehicles for land-based search and rescue. The main advances are the development of a diffusion based search strategy for route planning, research into GPS (including the Durham Tracker Project and statistical research into altitude errors), and the creation of a relative positioning system (including discussion of the errors caused by fast-moving units).
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10

Beyme, Steffen. "Autonomous, wireless sensor network-assisted target search and mapping." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50725.

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The requirements of wireless sensor networks for localization applications are largely dictated by the need to estimate node positions and to establish routes to dedicated gateways for user communication and control. These requirements add significantly to the cost and complexity of such networks. In some applications, such as autonomous exploration or search and rescue, which may benefit greatly from the capabilities of wireless sensor networks, it is necessary to guide an autonomous sensor and actuator platform to a target, for example to acquire a large data payload from a sensor node, or
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11

Burian, Erik Alfred. "Search methods for an autonomous underwater vehicle using scalar measurements." Thesis, Springfield, Va. : Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA314610.

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12

Shafer, Andrew J. M. Eng Massachusetts Institute of Technology. "Autonomous cooperation of heterogeneous platforms for sea-based search tasks." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45650.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 87-90).<br>Many current methods of search using autonomous marine vehicles do not adapt to changes in mission objectives or the environment. A cellular-decomposition-based framework for cooperative, adaptive search is proposed that allows multiple search platforms to adapt to changes in bo
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Helland, Peter D. "PURL II, a rapid deployment search and survey autonomous underwater vehicle." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24152.pdf.

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14

Giamou, Matthew Peter. "Place recognition for GNSS-denied autonomous multi-robot search and rescue." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112422.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 77-85).<br>Teams of agile unmanned aerial vehicles (UAVs) possess great potential for search and rescue missions requiring a rapid response over a large region of interest. With proper coordination, these robotic vehicles can leverage affordable hardware to efficiently search a remote region or disaster site for lost or injured people. However, effective search coordination requires that the robots successf
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15

Gabrecht, Katharina M. "Human factors of semi-autonomous robots for urban search and rescue." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/35458/.

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During major disasters or other emergencies, Urban Search and Rescue (USAR) teams are responsible for extricating casualties safely from collapsed urban structures. The rescue work is dangerous due to possible further collapse, fire, dust or electricity hazards. Sometimes the necessary precautions and checks can last several hours before rescuers are safe to start the search for survivors. Remote controlled rescue robots provide the opportunity to support human rescuers to search the site for trapped casualties while they remain in a safe place. The research reported in this thesis aimed to un
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16

Savage, Elizabeth. "Cooperative control of autonomous underwater vehicles." [College Station, Tex. : Texas A&M University, 2003. http://hdl.handle.net/1969.1/236.

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Thesis (MS)--Texas A&M University, 2003.<br>"Major Subject: Aerospace Engineering" Title from author supplied metadata (automated record created on Jul. 18, 2005.) Vita. Abstract. Includes bibliographical references.
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17

Dockhorn, Alexander Verfasser], and Rudolf [Gutachter] [Kruse. "Prediction-based search for autonomous game-playing / Alexander Dockhorn ; Gutachter: Rudolf Kruse." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2020. http://d-nb.info/1220035726/34.

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18

Rodrigues, Neto Jose Augusto. "A mine search algorithm for the Naval Postgraduate School Autonomous Underwater Vehicle." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/30542.

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Approved for public release; distribution unlimited.<br>This thesis develops, implements and tests a mine search algorithm for the Naval Postgraduate School Autonomous Underwater Vehicle (Phoenix). The vehicle is 72 inches long and displaces 400 pounds. Its maneuvers are performed using two propellers and four thrustem. It contains two embedded computer systems. The algorithm directs the autonomous search of a specified area mapping all obstacles and computing an estimate of the cumulative probability of detection. The algorithm uses no prior knowledge of the terrain or the location of mines.
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Dockhorn, Alexander [Verfasser], and Rudolf [Gutachter] Kruse. "Prediction-based search for autonomous game-playing / Alexander Dockhorn ; Gutachter: Rudolf Kruse." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2020. http://d-nb.info/1220035726/34.

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20

FLINT, MATTHEW D. "COOPERATIVE CONTROL FOR MULTIPLE AUTONOMOUS UAV's SEARCHING FOR TARGETS IN AN UNCERTAIN ENVIRONMENT." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1021923726.

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21

Hasler, Michael Douglas. "Simulation for Improvement of Dynamic Path Planning in Autonomous Search and Rescue Robots." Thesis, University of Canterbury. Electrical and Computer Engineering, 2009. http://hdl.handle.net/10092/4475.

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To hasten the process of saving lives after disasters in urban areas, autonomous robots are being looked to for providing mapping, hazard identification and casualty location. These robots need to maximise time in the field without having to recharge and without reducing productivity. This project aims to improve autonomous robot navigation through allowing comparison of algorithms with various weightings, in conjunction with the ability to vary physical parameters of the robot and other factors such as error thresholds/limits. The lack of a priori terrain data in disaster sites, means tha
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Jönsson, Jonatan, and Felix Stenbäck. "Monte-Carlo Tree Search in Continuous Action Spaces for Autonomous Racing : F1-tenth." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42442.

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Autonomous cars involve problems with control and planning. In thispaper, we implement and evaluate an autonomous agent based ona Monte-Carlo Tree Search in continuous action space. To facilitatethe algorithm, we extend an existing simulation framework and usea GPU for faster calculations. We compare three action generatorsand two rewards functions. The results show that MCTS convergesto an effective driving agent in static environments. However, it onlysucceeds at driving slow speeds in real-time. We discuss the problemsthat arise in dynamic and static environments and look to future workin i
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Ong, Seow Meng. "A Mission Planning Expert System with Three-Dimensional Path Optimization for the NPS Model 2 Autonomous Underwater Vehicle." Thesis, Monterey, California. Naval Postgraduate School, 1990. http://hdl.handle.net/10945/23457.

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Approved for public release; distribution is unlimited<br>Unmanned vehicle technology has matured significantly over the last two decades. This is evidenced by its widespread use in industrial and military applications ranging from deep-ocean exploration to anti-submarine warefare. Indeed, the feasiblity of short-range, special-purpose vehicles (whether aunonomous or remotely operated) is no longer in question. The research efforts have now begun to shift their focus on development of reliable, longer-range, high-endurance and fully autonomous systems. One of the major underlying technolog
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Banks, Alec. "A nature inspired guidance system for unmanned autonomous vehicles employed in a search role." Thesis, Bournemouth University, 2009. http://eprints.bournemouth.ac.uk/15906/.

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Since the very earliest days of the human race, people have been studying animal behaviours. In those early times, being able to predict animal behaviour gave hunters the advantages required for success. Then, as societies began to develop this gave way, to an extent, to agriculture and early studies, much of it trial and error, enabled farmers to successfully breed and raise livestock to feed an ever growing population. Following the advent of scientific endeavour, more rigorous academic research has taken human understanding of the natural world to much greater depth. In recent years, some o
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Hardin, Benjamin C. "On Autonomous Multi-agent Control in Wilderness Search and Rescue: A Mixed Initiative Approach." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2589.pdf.

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26

Wang, Yue. "Decision-Making for Search and Classification using Multiple Autonomous Vehicles over Large-Scale Domains." Digital WPI, 2011. https://digitalcommons.wpi.edu/etd-dissertations/87.

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This dissertation focuses on real-time decision-making for large-scale domain search and object classification using Multiple Autonomous Vehicles (MAV). In recent years, MAV systems have attracted considerable attention and have been widely utilized. Of particular interest is their application to search and classification under limited sensory capabilities. Since search requires sensor mobility and classification requires a sensor to stay within the vicinity of an object, search and classification are two competing tasks. Therefore, there is a need to develop real-time sensor allocation decisi
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Recoskie, Steven. "Autonomous Hybrid Powered Long Ranged Airship for Surveillance and Guidance." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31711.

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With devastating natural disasters on the rise, technological improvements are needed in the field of search and rescue (SAR). Unmanned aerial vehicles (UAVs) would be ideal for the search function such that manned vehicles can be prioritized to distributing first-aid and ultimately saving lives. One of the major reasons that UAVs are under utilized in SAR is that they lack a long flight endurance which compromises their effectiveness. Dirigibles are well suited for SAR missions since they can hover and maintain lift without consuming energy and can be easily deflated for packaging and transpo
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Nordström, Oskar, and Alexander Axelsson. "Pathfinder : Autonomous Guided Vehicle using Infrared Light." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230241.

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I världen växer forskning på självgående fordon dagligen.Målet med detta projekt var att skapa ett självgåendefordon och utforska möjligheterna att använda infrarödareflektioner som navigeringsmetod och hur man kanuppnå distinkta mätvärden. Avhandlingen diskuterar ävenmöjligheterna att använda flera prototyper i en störreskala. Under projektets gång byggdes ett prototypfordonför att genomföra experimenten angående lämplighetenmed navigering via infrarött ljus. Tester med prototypenvisar att navigering via infrarött ljus är väldigt pålitligtunder kontrollerade omständigheter. Projektet utforska
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Nouyan, Shervin. "Teamwork in a swarm of robots: an experiment in search and retrieval." Doctoral thesis, Universite Libre de Bruxelles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210476.

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In this thesis, we investigate the problem of path formation and prey retrieval in a swarm of robots. We present two swarm intelligence control mechanisms used for distributed robot path formation. In the first, the robots form linear chains. We study three variants of robot chains, which vary in the degree of motion allowed<p>to the chain structure. The second mechanism is called vectorfield. In this case,<p>the robots form a pattern that globally indicates the direction towards a goal or<p>home location. Both algorithms were designed following the swarm robotics control<p>principles: simplic
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Rafferty, Kevin John. "A comparison study of search heuristics for an autonomous multi-vehicle air-sea rescue system." Thesis, University of Glasgow, 2014. http://theses.gla.ac.uk/5292/.

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The immense power of the sea presents many life-threatening dangers to humans, and many fall foul of its unforgiving nature. Since manned rescue operations at sea (and indeed other search and rescue operations) are also inherently dangerous for rescue workers, it is common to introduce a level of autonomy to such systems. This thesis investigates via simulations the application of various search algorithms to an autonomous air-sea rescue system, which consists of an unmanned surface vessel as the main hub, and four unmanned helicopter drones. The helicopters are deployed from the deck of the s
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Nordström, Oskar, and ALEXANDER AXELSSON. "Pathfinder : Autonomous Guided Vehicle using Infrared Light." Thesis, KTH, Mekatronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232997.

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In the world, research on autonomous navigation vehicles (AGV) is growing by the day. The goal with this project was to create an AGV and explore the possibility of using infrared reflections as a navigational method and how to achieve distinct reflection measurements from a surface. The thesis also discusses the possibility of using several units on a larger scale. In the progress of the project, a prototype vehicle was built to conduct the experiments to identify the suitability of infrared navigation. The testing of the prototype shows that navigation by IR can be very reliable under contro
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Cowlagi, Raghvendra V. "Hierarchical motion planning for autonomous aerial and terrestrial vehicles." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41066.

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Autonomous mobile robots - both aerial and terrestrial vehicles - have gained immense importance due to the broad spectrum of their potential military and civilian applications. One of the indispensable requirements for the autonomy of a mobile vehicle is the vehicle's capability of planning and executing its motion, that is, finding appropriate control inputs for the vehicle such that the resulting vehicle motion satisfies the requirements of the vehicular task. The motion planning and control problem is inherently complex because it involves two disparate sub-problems: (1) satisfaction of th
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Gooding, Trent R. "A framework for evaluating advanced search concepts for multiple Autonomous Underwater Vehicle (AUV) Mine Countermeasures (MCM)." Thesis, Springfield, Va. : Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA387798.

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Thesis (Degrees of Naval Engineer and M.S. in Ocean Systems Management) Massachusetts Institute of Technology, February 2001.<br>Includes bibliographical references (leafs 113-114). Also Available online.
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Gooding, Trent R. (Trent Ronald) 1972. "A framework for evaluating advanced search concepts for multiple autonomous underwater vehicles (AUV) mine countermeasures (MCM)." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/34341.

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Thesis (Nav.E. and S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, February 2001.<br>Includes bibliographical references (leaves 113-114).<br>Waterborne mines pose an asymmetric threat to naval forces. Their presence, whether actual or perceived, creates a low-cost yet very powerful deterrent that is notoriously dangerous and time consuming to counter. In recent years, autonomous underwater vehicles (AUV) have emerged as a viable technology for conducting underwater search, survey, and clearance operations in support of the mine countermeasures (MCM) mission. With con
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Sjöö, Kristoffer. "Functional understanding of space : Representing spatial knowledge using concepts grounded in an agent's purpose." Doctoral thesis, KTH, Datorseende och robotik, CVAP, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48400.

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This thesis examines the role of function in representations of space by robots - that is, dealing directly and explicitly with those aspects of space and objects in space that serve some purpose for the robot. It is suggested that taking function into account helps increase the generality and robustness of solutions in an unpredictable and complex world, and the suggestion is affirmed by several instantiations of functionally conceived spatial models. These include perceptual models for the "on" and "in" relations based on support and containment; context-sensitive segmentation of 2-D maps in
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Kragelund, Sean P. "Optimal sensor-based motion planning for autonomous vehicle teams." Thesis, Monterey, California: Naval Postgraduate School, 2017. http://hdl.handle.net/10945/53003.

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Approved for public release; distribution is unlimited<br>Reissued 30 May 2017 with correction to student's affiliation on title page.<br>Autonomous vehicle teams have great potential in a wide range of maritime sensing applications, including mine countermeasures (MCM). A key enabler for successfully employing autonomous vehicles in MCM missions is motion planning, a collection of algo-rithms for designing trajectories that vehicles must follow. For maximum utility, these algorithms must consider the capabilities and limitations of each team member. At a minimum, they should incorporate dynam
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Blatt, Florian Andreas [Verfasser]. "The multi-agent flood algorithm as an autonomous system for search and rescue applications / Florian Andreas Blatt." Hannover : Technische Informationsbibliothek (TIB), 2018. http://d-nb.info/1169685013/34.

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Liao, Yan. "Decentralized Decision Making and Information Sharing in a Team of Autonomous Mobile Agents." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353101024.

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Gu, Tianyu. "Improved Trajectory Planning for On-Road Self-Driving Vehicles Via Combined Graph Search, Optimization & Topology Analysis." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/794.

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Trajectory planning is an important component of autonomous driving. It takes the result of route-level navigation plan and generates the motion-level commands that steer an autonomous passenger vehicle (APV). Prior work on solving this problem uses either a sampling-based or optimization-based trajectory planner, accompanied by some high-level rule generation components.
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Kohlbrecher, Stefan [Verfasser], Oskar von [Akademischer Betreuer] Stryk, and Daniele [Akademischer Betreuer] Nardi. "A Holistic Approach for Highly Versatile Supervised Autonomous Urban Search and Rescue Robots / Stefan Kohlbrecher ; Oskar von Stryk, Daniele Nardi." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2016. http://d-nb.info/1120585228/34.

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Acuna, Virgilio. "Using Unmanned Aerial Vehicles for Wireless Localization in Search and Rescue." FIU Digital Commons, 2017. https://digitalcommons.fiu.edu/etd/3646.

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This thesis presents how unmanned aerial vehicles (UAVs) can successfully assist in search and rescue (SAR) operations using wireless localization. The zone-grid to partition to capture/detect WiFi probe requests follows the concepts found in Search Theory Method. The UAV has attached a sensor, e.g., WiFi sniffer, to capture/detect the WiFi probes from victims or lost people’s smartphones. Applying the Random-Forest based machine learning algorithm, an estimation of the user's location is determined with a 81.8% accuracy. UAV technology has shown limitations in the navigational performance and
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Bagley, Phil. "Investigations of the behaviour of demersal grenadier fish, Coryphaenoides (Nematonurus) armatus in the abyssal Pacific and Atlantic oceans using an autonomous acoustic tracking vehicle." Thesis, University of Aberdeen, 1993. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU049186.

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The deep-sea has long been perceived as a food limited environment. The recent discovery of seasonal inputs of organic matter into the deep, in areas of the North Pacific and North Atlantic Oceans, has led to questions about the behaviour of deep-sea demersal animals. This thesis describes an autonomous acoustic tracking system (AUDOS: Aberdeen University Deep Ocean Submersible) developed to address the behaviour question; primarily of the demersal grenadier fish, <i>Coryphaenoides (Nematonurus) armatus</i>, but also other shallower living species. Deep-sea acoustic pinger and Code Activated T
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43

Prado, Marcos Gomes. "Planejamento de trajetória para estacionamento de veículos autônomos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-13052013-101339/.

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A navegação autônoma é um dos problemas fundamentais na área de robótica móvel. Esse problema vem sendo pesquisado nessa área por décadas e ainda apresenta um grande potencial para pesquisas científicas. A maior parte dos algoritmos e soluções desenvolvidas nessa área foi concebida para que robôs operem em ambientes estruturados. No entanto, outra questão de grande interesse para pesquisadores da área é a navegação em ambientes externos. Em ambientes não estruturado os veículos autônomos (robôs de grande porte) devem ser capazes de desviar de obstáculos, que eventualmente apareçam no caminho.
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Galvez, ramirez Nicolas. "A Framework for Autonomous Generation of Strategies in Satisfiability Modulo Theories Improving complex SMT strategies with learning Optimizing SMT Solving Strategies by Learning with an Evolutionary Process Evolving SMT Strategies Towards Automated Strategies in Satisfiability Modulo Theory." Thesis, Angers, 2018. http://www.theses.fr/2018ANGE0026.

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La génération de stratégies pour les solveurs en Satisfiabilité Modulo des Théories (SMT) nécessite des outils théoriques et pratiques qui permettent aux utilisateurs d’exercer un contrôle stratégique sur les aspects heuristiques fondamentaux des solveurs de SMT, tout en garantissant leur performance. Nous nous intéressons dans cette thèse au solveur Z3 , l’un des plus efficaces lors des compétitions SMT (SMT-COMP). Dans les solveurs SMT, la définition d’une stratégie repose sur un ensemble de composants et paramètres pouvant être agencés et configurés afin de guider la recherche d’une preuve
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Neves, Vânia de Oliveira. "Automatização do teste estrutural de software de veículos autônomos para apoio ao teste de campo." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-15092015-090805/.

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Veículo autônomo inteligente (ou apenas veículo autônomo VA) é um tipo de sistema embarcado que integra componentes físicos (hardware) e computacionais (software). Sua principal característica é a capacidade de locomoção e de operação de modo semi ou completamente autônomo. A autonomia cresce com a capacidade de percepção e de deslocamento no ambiente, robustez e capacidade de resolver e executar tarefas lidando com as mais diversas situações (inteligência). Veículos autônomos representam um tópico de pesquisa importante e que tem impacto direto na sociedade. No entanto, à medida que esse cam
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46

Kowadlo, Gideon. "Robot odour localisation in enclosed and cluttered environments using naïve physics." Monash University. Faculty of Engineering. Department of Electrical and Computer Systems Engineering, 2007. http://arrow.monash.edu.au/hdl/1959.1/53471.

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Odour localisation is the problem of finding the source of an odour or other volatile chemical. It promises many valuable practical and humanitarian applications. Most localisation methods require a robot to reactively track an odour plume along its entire length. This approach is time consuming and may be not be possible in a cluttered indoor environment, where airflow tends to form sectors of circulating airflow. Such environments may be encountered in crawl-ways under floors, roof cavities, mines, caves, tree-canopies, air-ducts, sewers or tunnel systems. Operation in these places is import
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47

Chatzilygeroudis, Konstantinos. "Micro-Data Reinforcement Learning for Adaptive Robots." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0276/document.

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Les robots opèrent dans le monde réel, dans lequel essayer quelque chose prend beaucoup de temps. Pourtant, les methodes d’apprentissage par renforcement actuels (par exemple, deep reinforcement learning) nécessitent de longues périodes d’interaction pour trouver des politiques efficaces. Dans cette thèse, nous avons exploré des algorithmes qui abordent le défi de l’apprentissage par essai-erreur en quelques minutes sur des robots physiques. Nous appelons ce défi “Apprentissage par renforcement micro-data”. Dans la première contribution, nous avons proposé un nouvel algorithme d’appr
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48

Paiva, ?verton de Oliveira. "Melhoria na converg?ncia do algoritmo Q-Learning na aplica??o de sistemas tutores inteligentes." UFVJM, 2016. http://acervo.ufvjm.edu.br/jspui/handle/1/1386.

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Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-06-22T22:29:53Z No. of bitstreams: 2 everton_oliveira_paiva.pdf: 3688473 bytes, checksum: 00c67bcc4d4564b69bb64a0b596743fc (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-06-23T13:21:09Z (GMT) No. of bitstreams: 2 everton_oliveira_paiva.pdf: 3688473 bytes, checksum: 00c67bcc4d4564b69bb64a0b596743fc (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSp
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Page, Jennifer Lynn. "The effects of plume property variation on odor plume navigation in turbulent boundary layer flows." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29752.

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Thesis (Ph.D)--Biology, Georgia Institute of Technology, 2009.<br>Committee Chair: Weissburg, Marc; Committee Member: Hay, Mark; Committee Member: Kubanek, Julia; Committee Member: Webster, Donald; Committee Member: Yen, Jeannette. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Morgan, Hayden Matthew. "Small-Target Detection and Observation with Vision-Enabled Fixed-Wing Unmanned Aircraft Systems." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/8998.

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This thesis focuses on vision-based detection and observation of small, slow-moving targets using a gimballed fixed-wing unmanned aircraft system (UAS). Generally, visual tracking algorithms are tuned to detect motion of relatively large objects in the scene with noticeably significant motion; therefore, applications such as high-altitude visual searches for human motion often ignore target motion as noise. Furthermore, after a target is identified, arbitrary maneuvers for transitioning to overhead orbits for better observation may result in temporary or permanent loss of target visibility. W
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