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Dissertations / Theses on the topic 'Code trees'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

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1

Shippey, Thomas Joshua. "Exploiting abstract syntax trees to locate software defects." Thesis, University of Hertfordshire, 2015. http://hdl.handle.net/2299/16365.

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Context. Software defect prediction aims to reduce the large costs involved with faults in a software system. A wide range of traditional software metrics have been evaluated as potential defect indicators. These traditional metrics are derived from the source code or from the software development process. Studies have shown that no metric clearly out performs another and identifying defect-prone code using traditional metrics has reached a performance ceiling. Less traditional metrics have been studied, with these metrics being derived from the natural language of the source code. These newer
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2

David, Åström. "Implementation and Evaluation of an Emulated Permission System for VS Code Extensions using Abstract Syntax Trees." Thesis, Linköpings universitet, Programvara och system, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177474.

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Permission systems are a common security feature in browser extensions and mobile applications to limit their access to resources outside their own process. IDEs such as Visual Studio Code, however, have no such features implemented, and therefore leave extensions with full user permissions. This thesis explores how VS Code extensions access external resources and presents a proof-of-concept tool that emulates a permission system for extensions. This is done through static analysis of extension source code using abstract syntax trees, scanning for usage of Extension API methods and Node.js dep
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3

Петров, Володимир Вікторович, Владимир Викторович Петров та Volodymyr Viktorovych Petrov. "Исследование множеств неравномерных биномиальных чисел при постоянном параметре n". Thesis, Издательство СумГУ, 2006. http://essuir.sumdu.edu.ua/handle/123456789/17722.

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4

Buonomo, Umberto. "Tree-SPH code EvoL: profiling and optimization." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3422492.

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This thesis is part of a larger project devoted to modeling galaxies via numerical hydrodynamical simulations, from their formation within their cosmological background throughout their evolutionary history. The thesis has two primary objectives, strictly linked with one another. The first one, of astrophysical nature, is to develop a purely theoretical scenario for the formation and evolution of galaxies in the cosmological context. Given the complexity of the targeted physical systems, it is necessary to rely upon on numerical simulations which in turn require an appropriate numerical cod
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Nagnibeda, Tatiana, Wolfgang Woess, and Andreas Cap@esi ac at. "Random Walks on Trees with Finitely Many Cone Types." ESI preprints, 2001. ftp://ftp.esi.ac.at/pub/Preprints/esi1009.ps.

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6

Ordonio, Robert Romero. "An automated tool to facilitate code translation for software fault tree analysis." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA273205.

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7

Dick, Janet McPherson. "Influence of reproductive structures on the morphology and physiology of Pinus contorta trees." Thesis, University of Edinburgh, 1989. http://hdl.handle.net/1842/13648.

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8

Zaidan, Mahdi Yahya. "Trellis coded modulation with σ-tree signal constellations". Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/14984.

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9

Siwik, Eden Isabel Helen. "Spatial, temporal and dendrochronological comparisons of mercury in Ontario deciduous trees." Thesis, Kingston, Ont. : [s.n.], 2007. http://hdl.handle.net/1974/950.

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10

Cohen, Randi L. "Giant impacts during planet formation : parallel tree code simulations using smooth particle hydrodynamics /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2006. http://uclibs.org/PID/11984.

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11

Al-Chatti, Qusay. "Decision tree based seismic retrofit selection for non-code conforming reinforced concrete buildings." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43564.

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Pacific Earthquake Engineering Research (PEER) Center has developed a comprehensive framework for quantitative assessment of performance level of structures. The framework relies on integrated work of four consecutive stages to provide probabilistic description of system level performance in terms of repair cost, downtime, casualties, deaths or any other parameter of interest to engineers and stakeholders. This is for the purpose of communicating behaviour of facility under earthquake in term of identified damage states and expected economic losses, thus treats possible disconnection between e
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12

Zhou, Steven. "A Novel Approach to Iris Localization and Code Matching for Iris Recognition." NSUWorks, 2009. http://nsuworks.nova.edu/gscis_etd/346.

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In recent years, computing power and biometric sensors have not only become more powerful, but also more affordable to the general public. In turn, there has been great interest in developing and deploying biometric personal ID systems. Unlike the conventional security systems that often require people to provide artificial identification for verification, i.e. password or algorithmic generated keys, biometric security systems use an individual's biometric measurements, including fingerprint, face, hand geometry, and iris. It is believed that these measurements are unique to the individual, ma
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13

Gu, Jian. "Multi-modal Neural Representations for Semantic Code Search." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279101.

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In recent decades, various software systems have gradually become the basis of our society. Programmers search existing code snippets from time to time in their daily life. It would be beneficial and meaningful to have better solutions for the task of semantic code search, which is to find the most semantically relevant code snippets for a given query. Our approach is to introduce tree representations by multi-modal learning. The core idea is to enrich semantic information for code snippets by preparing data of different modalities, and meanwhile ignore syntactic information. We design one nov
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14

Khan, Abdul Hannan. "Tree encoding in the ITU-T G.711.1 speech coder." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97215.

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This thesis examines further enhancement to ITU-T G.711.1 speech coder. The original G.711 coder is effectively a low band μ-law quantizer. The G.711.1 extension adds noise feed-back and lower band enhancement layer apart from the higher-band. To further improve the core lower-band coding performance the use of both vector quantization and delayed decision multi-path tree encoder in the above coder at the low band portion is studied. The delayed decision multi-path tree encoding is implemented by the (M,L) – algorithm. The new quantizer takes into account past history, and hence, the error p
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15

Winkel, Mathias [Verfasser]. "High-resolution simulations of strongly coupled coulomb systems with a parallel tree code / Mathias Winkel." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2013. http://d-nb.info/1044749024/34.

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16

Chilowicz, Michel. "Recherche de similarité dans du code source." Phd thesis, Université Paris-Est, 2010. http://tel.archives-ouvertes.fr/tel-00587628.

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La duplication de code source a de nombreuses origines : copie et adaptation inter-projets ou clonage au sein d'un même projet. Rechercher des correspondances de code copié permet de le factoriser dans un projet ou de mettre en évidence des situations de plagiat. Nous étudions des méthodes statiques de recherche de similarité sur du code ayant potentiellement subi des opérations d'édition telle que l'insertion, la suppression, la transposition ainsi que la factorisation et le développement de fonctions. Des techniques d'identification de similarité génomique sont examinées et adaptées au conte
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Deravi, Farzaneh Dommergues Jean-Yves. "Contribution à l' étude du parler bilingue Persan-Français de locuteurs très compétents." Saint-Denis : Université de Paris 8, 2009. http://www.bu.univ-paris8.fr/consult.php?url_these=theses/DeraviThese.pdf.

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18

Ye, Xin. "Model checking self modifying code." Thesis, Université de Paris (2019-....), 2019. http://www.theses.fr/2019UNIP7010.

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Le code auto-modifiant est un code qui modifie ses propres instructions pendant le temps d'exécution. Il est aujourd'hui largement utilisé, notamment dans les logiciels malveillants pour rendre le code difficile à analyser et à été détecté par les anti-virus. Ainsi, l'analyse de tels programmes d'auto-modifiant est un grand défi. Pushdown System(PDSs) est un modèle naturel qui est largement utilisé pour l'analyse des programmes séquentiels car il permet de modéliser précisément les appels de procédures et de simuler la pile du programme. Dans cette thèse, nous proposons d'étendre le modèle du
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Sfez, Rémi. "Sur les systèmes de codes concaténés avec décodages intermédiaires pondérés /." Paris : École nationale supérieure des télécommunications, 1991. http://catalogue.bnf.fr/ark:/12148/cb35494286p.

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20

Tyminski, William P. "Preventing Bark-Caused Increment Borer Jams: A Modified Technique For Core Extraction." Tree-Ring Society, 2011. http://hdl.handle.net/10150/622644.

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When coring thick-barked trees, increment cores often become compressed and jammed inside the narrow region of the borer shaft. These jams can be problematic for two reasons: first, it often leaves the core unusable; second, the jam may be so tightly compressed in the borer that removal is difficult, especially in the field. Although procedures to evacuate these jams are documented in the literature, methods of prevention are not. Here, a modified manual method of increment boring that can reduce the likelihood of jams and, in addition, decrease the number of deformed core samples is describe
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21

Grozman, Vladimir. "Evaluating the CU-tree algorithm in an HEVC encoder." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176054.

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CU-tree (Coding Unit tree) is an algorithm for adaptive QP (quantization parameter). It runs in the lookahead and decreases the QP of blocks that are heavily referenced by future blocks, taking into account the quality of the prediction and the complexity of the future blocks, approximated by the inter and intra residual. In this study, CU-tree is implemented in c65, an experimental HEVC encoder used internally by Ericsson. The effects of CU-tree are evaluated on the video clips in the HEVC Common test conditions and the performance is compared across c65, x265 and x264. The results are simila
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22

Rosique, Esplugas Cristina. "Can native woodlands cope with climate change? : measuring genetic variation & phenotypic plasticity in British populations of ash, rowan and silver birch." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/33035.

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Rapid climate change is a significant threat to the long-term persistence of native tree populations. Concern has been expressed that tree populations might fail to adapt due to rate of change, insufficient adaptive variation in tree populations and limits to dispersal. In contrast, others have contended that most tree species have high phenotypic plasticity, maintain high levels of within-population genetic variation and exhibit effective gene dispersal capability, all characteristics which should enable an adaptive response. To assess the potential adaptability of tree populations we need to
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23

Lin, Yi Ching, and 林宜靜. "Ranking algorithms for k-ary trees in Gray-code order." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/73514912797538298787.

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碩士<br>國立臺北商業技術學院<br>資訊與決策科學研究所<br>101<br>A k-ary tree is a rooted and ordered tree such that every internal node has exactly k children. A well-formed representation of k-ary trees is the useing of z-sequences introduced by Zaks. Under such representations, generation of z-sequences for k-ary trees in Gray-code order was developed by van Baronaigien (2000) and Xiang et al. (2000), respectively. Based on such a Gray-code order, Ahmadi-Adl et al. (2011) recently presented ranking and unranking algorithms, and the time complexity of both algorithms for k-ary trees with n internal nodes is O(kn^2
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24

LEE, PEI-FENG, and 李碧峰. "The Establishment of the Code for Landscape Trees Planting Engineering." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/81339693649591308816.

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碩士<br>中原大學<br>建築研究所<br>100<br>The quality of landscape plant engineering in the public civil project, for the long time was not satisfied to the public. Also, it was generally criticized by all sorts of the parties from the industries, government units, and academics. During the construction for the civic engineering and landscape engineering, construction code is the standard to be conformed to ensure the construction quality. Therefore, the suitability and quality for the content of a “Landscape plant engineering construction code” is very important for ensuring plant engineering quality
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25

Ježek, Lukáš. "C-language code generator for SOFA 2." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-313892.

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SOFA 2 is a component system employing hierarchically composed components. It provides ADL-based design, behavior specification using behavior protocols, dynamic reconfiguration of the components, and modeling of the component communication by software connectors. This allows seamless and transparent distribution of component applications. The connectors can be automatically generated, SOFA 2 contains Java connector generator allowing to connect components with Java interfaces. The aim of this thesis is to implement C code generator and integrate it into the current SOFA 2 connector generator
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26

Wu, Tsung-Tse, and 吳宗澤. "Code Reservayion in the OVSF Code Tree." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/52032616237591393030.

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碩士<br>國立嘉義大學<br>資訊工程研究所<br>93<br>The Orthogonal Variable Spreading Factor channelization codes are widely used to provide the variable data rate and support different bandwidth requirements for users in the WCDMA system. Two important issues in the OVSF domain are the problems of code assignment and reassignment. The code assignment has the significant impact on the code utilization and code blocking probability. In order to reduce the code blocking probability, the code reassignment mechanism is invoked to schedule a larger continuous space to meet the requirement of the call request. Many wo
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Lin, Ting-Lung, and 林廷隆. "Code Placement and Replacement Schemes for W-CDMA Rotated-OVSF Code Tree Management." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/57618856429213204945.

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碩士<br>國立臺北大學<br>資訊管理研究所<br>91<br>The Orthogonal Variable Spreading Factor (OVSF) channelization codes are widely used to provide variable data rate for supporting different bandwidth requirements in the WCDMA system. Many works in the literature have been intensively investigated code placement and replacement schemes in the OVSF code tree to reduce the code blocking probability and re-assignment cost. In this thesis, we introduce a new code tree structure, namely ROVSF (Rotated-Orthogonal Variable Spreading Factor) code tree, while the code capacity of the ROVSF code tree is same with the tra
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Chung, Yi-Yun, and 鍾依芸. "States Classification Code Assignment and Proportional Reservation Policy Code Tree in W-CDMA." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/35365755093348845311.

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碩士<br>國立中山大學<br>資訊工程學系研究所<br>91<br>In Wideband DS-CDMA system, increasing the utilization of Orthogonal Variable Spreading Factor (OVSF) code tree can serve more users. As Dynamic Code Assignment (DCA) does, the allocated codes will be reassigned when a new call can’t be served even if the capacity is enough. However, reassigning occupied codes is expensive. In this thesis, we have proposed a state classification code assignment principle and a proportional reservation policy. In the proposed algorithm, the OVSF code tree is classified into four states. Then, the system will decide whether to
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Johnson, KM. "Come with me on a journey through xylem and space." Thesis, 2022. https://eprints.utas.edu.au/47506/1/Johnson_whole_thesis.pdf.

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The continued and inevitable rise in global temperatures and likely increase in extreme drought events, pose an immediate and intensifying threat to tree survival due to plant water stress. The global increase in drought-induced forest dieback, and the irreplaceable value of forests, creates an urgent need for research to uncover the mechanistic drivers of tree death. Water travels through plants via a complex, interconnected network of tube-like cells called xylem. Loss of water from the leaves creates a negative pressure or ‘tension’ within the xylem network, providing the driving force for
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Tsai, Chia-Yu, and 蔡佳育. "QC-LDPC Code Construction by Proto-Matrix Extension Based on Depth Tree." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/50599846523409806862.

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碩士<br>國立清華大學<br>通訊工程研究所<br>103<br>The error-correcting code (ECC) is one of the channel coding technique widely used in many applications. Low density parity check (LDPC) codes have a remarkable performance Among the error-correcting codes, and have drawn significant attention for their error-correcting capability using the message-passing decoding algorithm. The PEG algorithm is a good sub-optimal method to construct the Tanner graph for a LDPC code. By progressively establishing edges between the furthest nodes, the PEG algorithm is able to build a Tanner graph while maximizing length of the
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Che-Hsi, Chou, and 周哲熙. "Loopless Algorithms for Listing k-ary Tree Sequences in Gray-code Order." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/60226353229100888802.

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碩士<br>國立臺北商業技術學院<br>資訊與決策科學研究所<br>101<br>A k-ary tree is a rooted and ordered tree such that every internal node has exactly k children (k>=2). A natural representation of k-ary trees is the use of x-sequences or z-sequences introduced by Zaks in 1980. Under such representations, a loopless algorithm that generates z-sequences of k-ary trees in Gray-code order was developed by van Baronaigien and Xiang et al. in 2000, respectively. In this paper, we present a new loopless algorithm to generate z-sequences of k-ary trees in Gray-code order. The development of our algorithm is in need of less me
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32

"Estudo de tres tipos de boca de lobo." Tese, Biblioteca Digital da Unicamp, 1999. http://libdigi.unicamp.br/document/?code=vtls000188483.

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"Modelamento e regulação de trafego de trens em linhas metroviarias." Tese, Biblioteca Digital da Unicamp, 2000. http://libdigi.unicamp.br/document/?code=vtls000213355.

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"Avaliação da racionalização energetica em hoteis padrão tres estrelas." Tese, Biblioteca Digital da Unicamp, 2002. http://libdigi.unicamp.br/document/?code=vtls000259056.

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"Estrutura e dinamica populacional de tres especies arboreas tropicais." Tese, Biblioteca Digital da Unicamp, 1996. http://libdigi.unicamp.br/document/?code=vtls000110836.

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"Estudo da dinamica das transmissões mecanicas por trens de engrenagens planetarias." Tese, Biblioteca Digital da Unicamp, 2004. http://libdigi.unicamp.br/document/?code=vtls000340735.

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37

Lai, Jiun-You, and 賴俊佑. "Tree- and Trellis-based Algorithms for Decoding Convolutional Codes." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/37062846756937069288.

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碩士<br>國立交通大學<br>電信工程系<br>91<br>This thesis proposed new tree-based and trellis-based decoding algorithms for convolutional codes. Traditional sequential approaches for decoding convolutional codes operate along a tree, yielding only suboptimal performance. This motivate us to explore new approaches to enhance the decoder performance. We propose a tree-based algorithm that achieve the optimal (maximum likelihood) performance in additive white Gaussian noise (AWGN) channels. To reduce the complexity in low signal-to-noi
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Wang, Ting-Yuan, and 王鼎允. "A Scalable Core Migration Protocol for Dynamic Multicast Tree." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/50276672958573901921.

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碩士<br>國立清華大學<br>資訊工程學系<br>88<br>Over the year, researchers have proposed the core based trees (CBT) and protocol independent multicasting (PIM) protocols to route multicast data on Internet. Some previously proposed heuristics for locating the Core of a group typically require knowledge of the complete network topology, a requirement that is not always practical for a distributed problem such as Internet routing. Recently, many researchers have proposed distributed algorithms for locating the Core of a group. Although knowledge of the network topology is not explicitly assumed, some knowledge
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"Alegoria e visão teologica da historia em tres autos vicentinos." Tese, Biblioteca Digital da Unicamp, 2005. http://libdigi.unicamp.br/document/?code=vtls000361918.

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"O Granito Passa Tres, PR e as minerações auriferas associadas." Tese, Biblioteca Digital da Unicamp, 1992. http://libdigi.unicamp.br/document/?code=vtls000042694.

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Chin, Hao-Lun, and 秦浩倫. "An OVSF Code Tree Partition Policy for WCDMA Systems and Implementation of SIP Servers." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/16766812158373390183.

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碩士<br>國立臺灣科技大學<br>資訊工程系<br>93<br>In this thesis, we discuss two topics about the third generation (3G) mobile communications. In the first topic, we focus on the multi-code placement and replacement issue. Since WCDMA systems use orthogonal variable spreading factor (OVSF) codes as channelization codes, it can support high-rate transmission and variable-bit-rate services. For the OVSF codes, there are two approaches to assign codes, i.e., single-code and multi-code. To solve the code fragmentation problem and to reduce the number of code reassignments, we propose a tree partition policy for ma
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"Efeito da disponibilidade de recursos em um sistema com tres niveis troficos." Tese, Biblioteca Digital da Unicamp, 2003. http://libdigi.unicamp.br/document/?code=vtls000297790.

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"Concepções de velhice e cuidado em tres gerações de origem nipo-brasileira." Tese, Biblioteca Digital da Unicamp, 1997. http://libdigi.unicamp.br/document/?code=vtls000115242.

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"Estudo comparativo do sistema radicular de citros sob tres tipos de irrigação." Tese, Biblioteca Digital da Unicamp, 1996. http://libdigi.unicamp.br/document/?code=vtls000108530.

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Yang, Ya-Jung, and 楊雅容. "The VLSI Design for A Low Memory Zero Tree Codec." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/59882173488535915841.

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碩士<br>國立交通大學<br>電機與控制工程系<br>89<br>JPEG2000, a new generation of image compression, adopts the zero tree coding method. In the same compression ratio, this method has the better quality of image than JPEG. In these researches of zero tree coding, “set partitioning in hierarchical trees” is the best method so far. However, the large memory needed for the huge amounts of tables limit the application in real cases. Thus the hardware design is the efficient solution to improve the execution speed; besides, this thesis proposes, “Low memory zero tree coding” hardware design, to reduce the huge amoun
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Jien, Yi-Cheng, and 簡益誠. "PAPR Reduction of OFDM System Using Non-disjoint PTS Algorithm and Tree Structure of Code." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5mmwa2.

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碩士<br>國立中興大學<br>電機工程學系所<br>106<br>There are advantage in Orthogonal Frequency Division Multiplexing (OFDM), but there are no shortcomings. The most serious drawback is the excessive peak-to-average power ratio. The power generated when the sub-carriers are superposed causes the peak-to-average power ratio to be too high.Errors when passing through nonlinear amplifiers.In this thesis, we propose a method that is different from the disjoint Partial Transmit Sequence (PTS) to reduce the peak-to-peak average power ratio generated by an Orthogonal Frequency Division Multiplexing. We use the MPTS wi
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47

Fabian, Peter. "Refaktorizace editoru stromů TrEd." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-313910.

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Title: Refactoring tree editor TrEd Author: Peter Fabian Department: Institute of Formal and Applied Linguistics Supervisor: doc. Ing. Zdenek Zabokrtsky, Ph.D., Institute of Formal and Applied Linguistics Abstract: The main goal of the thesis was to refactor tree editor TrEd, improve its modularity, maintainability and make its further development less difficult. Static and dynamic analysis of TrEd have been performed in order to help us find acrid spots in the source code. More than 230 subroutines and data structures have been moved between packages, 50 new packages and a test suite with mor
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""Analise dos esforços desenvolvidos na usinagem de tres especies de madeira de eucalipto"." Tese, Biblioteca Digital da Unicamp, 1999. http://libdigi.unicamp.br/document/?code=vtls000188944.

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49

"Analise citogenetica de tres especies de Eleutherodactylus (Anura, Leptodatylidae) do sudeste do Brasil." Tese, Biblioteca Digital da Unicamp, 2003. http://libdigi.unicamp.br/document/?code=vtls000313807.

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50

"Estudo sobre a matriz extracelular de diferentes regiões de tres tendões de ratos." Tese, Biblioteca Digital da Unicamp, 1995. http://libdigi.unicamp.br/document/?code=vtls000093773.

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