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Dissertations / Theses on the topic 'Embedding techniques'

Author: Grafiati

Published: 17 January 2024

Last updated: 25 July 2025

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1

Thanh, Trung Huynh. "On leverage embedding techniques for network alignment." Thesis, Griffith University, 2022. http://hdl.handle.net/10072/416055.

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Networks are natural but powerful structures that capture relationships between different entities in many domains, such as social networks, citation networks, bioinformatic networks. In many applications that require multiple networks analysis, network alignment, the task of recognizing node correspondence across different networks, plays an important role. A wellknown application of network alignment is to identify which accounts in different social networks belong to the same person. Given the appeal of network alignment, there is a rich body of researches that aims to tackle this problem.

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Chochlidakis, Georgios. "Mobility-aware virtual network embedding techniques for next-generation mobile networks." Thesis, King's College London (University of London), 2018. https://kclpure.kcl.ac.uk/portal/en/theses/mobilityaware-virtual-network-embedding-techniques-for-nextgeneration-mobile-networks(174e714f-2a4a-447a-bcd5-d526170377fd).html.

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Network virtualisation has become one of the most prominent solutions for sus-tainability towards the dramatic increase of data demand in next-generation mobile networks. In addition, apart from increasing the overall infrastructure utilisation, it also greatly improves the manageability, the scalability and the robustness of the network. In order to allow multiple virtual networks to coexist in the same substrate network, the need for efficient network sharing techniques is imperative. The main purpose of this work is to provide a holistic optimization framework for vir-tual network embedding

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Obidallah, Waeal. "Multi-Layer Web Services Discovery using Word Embedding and Clustering Techniques." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/41840.

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Web services discovery is the process of finding the right Web services that best match the end-users’ functional and non-functional requirements. Artificial intelligence, natural language processing, data mining, and text mining techniques have been applied by researchers in Web services discovery to facilitate the process of matchmaking. This thesis contributes to the area of Web services discovery and recommendation, adopting the Design Science Research Methodology to guide the development of useful knowledge, including design theory and artifacts. The lack of a comprehensive review of We

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Ojike, Uzoma. "Combining tools and techniques for embedding an ecosystem approach in spatial planning." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/11196.

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Despite the attention garnered by sustainability in the last three decades and the advances in its tools and techniques, we are no closer to attaining sustainability now than we were at the start. This elusiveness has been attributed to the lack of a clearly defined global method for evaluating sustainability and poor integration into sector, national and international policies and decision-making, amongst others. A clear limitation observed in most concepts/methods is their inability to integrate effectively ecological, economic and social sustainability during assessment. Rather, there is a

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Alain, Martin. "A compact video representation format based on spatio-temporal linear embedding and epitome." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S001/document.

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L'efficacité des services de compression vidéo est de nos jours un enjeu essentiel, et est appelé à le devenir d'autant plus dans le futur, comme l'indique la croissance constante du trafic vidéo et la production de nouveaux formats tels que la vidéo à haute résolution, à gamme de couleur ou dynamique étendues, ou encore à fréquence d'images augmentée. Le standard MPEG HEVC est aujourd'hui un des schémas de compression les plus efficaces, toutefois, il devient nécessaire de proposer de nouvelles méthodes originales pour faire face aux nouveaux besoins de compression. En effet, les principes de

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Raahemi, Mohammad. "Intelligent Prediction of Stock Market Using Text and Data Mining Techniques." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40934.

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The stock market undergoes many fluctuations on a daily basis. These changes can be challenging to anticipate. Understanding such volatility are beneficial to investors as it empowers them to make inform decisions to avoid losses and invest when opportunities are predicted to earn funds. The objective of this research is to use text mining and data mining techniques to discover the relationship between news articles and stock prices fluctuations. There are a variety of sources for news articles, including Bloomberg, Google Finance, Yahoo Finance, Factiva, Thompson Routers, and Twitter. In our

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Ferey, Gaspard. "Higher-Order Confluence and Universe Embedding in the Logical Framework." Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG032.

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La multiplicité des systèmes formels a mis en évidence la nécessité d'un socle logique commun dans lequel les formalismes logiques pourraient être exprimés.L'enjeu principal de ce manuscrit est la définition de techniques d'encodages reposant sur la réécriture de termes et capables de réprésenter les fonctionnalités avancées des systèmes de types modernes.Nos encodages s'appuieront sur le lambda-Pi calcul modulo, un système de types dépendants, communément utilisé comme cadre logique, étendu ici par de laréécriture d'ordre supérieur. On s'intéresse, dans une première partie, aux critères de co

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Senjean, Bruno. "Development of new embedding techniques for strongly correlated electrons : from in-principle-exact formulations to practical approximations." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAF035/document.

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Cette thèse traite du développement et de l’implémentation de nouvelles méthodes visant à décrire la corrélation électronique forte dans les molécules et les solides. Après avoir introduit l’état de l’art des méthodes utilisées en chimie quantique et en physique de la matière condensée, une nouvelle méthode hybride combinant théorie de la fonction d’onde et théorie de la fonctionnelle de la densité (DFT) est présentée et s’intitule “site-occupation embedding theory” (SOET). Celle-ci est appliquée au modèle de Hubbard à une dimension. Ensuite, le problème du gap fondamental est revisité en DFT

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Paoli, Roberto. "Cell culture interfaces for different organ-on-chip applications: from photolithography to rapid-prototyping techniques with sensor embedding." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/668376.

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Despite the last 60 years have seen major advances in many scientific and technological inputs of drug Research and Development, the number of new molecules hitting the market per billion US dollars of R&D spending has been declined steadily during the same period. The current scenario highlights the need for new research tools to enable reduce costly animal and clinical trials while providing a better prediction about drug efficacy and security in humans A recent emerging approach to improve the current models is emerging from the field of microfluidics, which studies systems that process o

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Antici, Francesco. "Advanced techniques for cross-language annotation projection in legal texts." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23884/.

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Nowadays, the majority of the services we benefit from, are provided online and their use is regulated by the acceptance to the terms of service by the users. All our data are handled accordingly with the clauses of such document and all our behaviours must comply with it. Given so, it would be very useful to find automated techniques to ensure fairness of the document or inform the users about possible threats. The focus of this work, is to create resources aimed to the development of such tools in languages other than English, which may lack in linguistic resources and annotated corpus. T

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Sakarya, Hatice. "A Contribution To Modern Data Reduction Techniques And Their Applications By Applied Mathematics And Statistical Learning." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612819/index.pdf.

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High-dimensional data take place from digital image processing, gene expression micro arrays, neuronal population activities to financial time series. Dimensionality Reduction - extracting low dimensional structure from high dimension - is a key problem in many areas like information processing, machine learning, data mining, information retrieval and pattern recognition, where we find some data reduction techniques. In this thesis we will give a survey about modern data reduction techniques, representing the state-of-the-art of theory, methods and application, by introducing the language of m

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Chammem, Afef. "Robust watermarking techniques for stereoscopic video protection." Phd thesis, Institut National des Télécommunications, 2013. http://tel.archives-ouvertes.fr/tel-00917964.

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The explosion in stereoscopic video distribution increases the concerns over its copyright protection. Watermarking can be considered as the most flexible property right protection technology. The watermarking applicative issue is to reach the trade-off between the properties of transparency, robustness, data payload and computational cost. While the capturing and displaying of the 3D content are solely based on the two left/right views, some alternative representations, like the disparity maps should also be considered during transmission/storage. A specific study on the optimal (with respect

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Van, Huyssteen Rudolph Hendrik. "Comparative evaluation of video watermarking techniques in the uncompressed domain." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71842.

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Thesis (MScEng)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: Electronic watermarking is a method whereby information can be imperceptibly embedded into electronic media, while ideally being robust against common signal manipulations and intentional attacks to remove the embedded watermark. This study evaluates the characteristics of uncompressed video watermarking techniques in terms of visual characteristics, computational complexity and robustness against attacks and signal manipulations. The foundations of video watermarking are reviewed, followed by a survey of existing vide

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Boschin, Armand. "Machine learning techniques for automatic knowledge graph completion." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAT016.

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Un graphe de connaissances est un graphe orienté dont les nœuds sont des entités et les arêtes, typées par une relation, représentent des faits connus liant les entités. Ces graphes sont capables d'encoder une grande variété d'information mais leur construction et leur exploitation peut se révéler complexe. Historiquement, des méthodes symboliques ont permis d'extraire des règles d'interaction entre entités et relations, afin de corriger des anomalies ou de prédire des faits manquants. Plus récemment, des méthodes d'apprentissage de représentations vectorielles, ou plongements, ont tenté de ré

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CONTINO, Salvatore. "Study and identification of new molecular descriptors, finalized to the development of Virtual Screening techniques through the use of deep neural networks." Doctoral thesis, Università degli Studi di Palermo, 2022. https://hdl.handle.net/10447/554714.

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Al-Nu'aimi, Abdallah Saleem Na. "Design, implementation and performance evaluation of robust and secure watermarking techniques for digital coloured images : designing new adaptive and robust imaging techniques for embedding and extracting 2D watermarks in the spatial and transform domain using imaging and signal processing techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4255.

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The tremendous spreading of multimedia via Internet motivates the watermarking as a new promising technology for copyright protection. This work is concerned with the design and development of novel algorithms in the spatial and transform domains for robust and secure watermarking of coloured images. These algorithms are adaptive, content-dependent and compatible with the Human Visual System (HVS). The host channels have the ability to host a large information payload. Furthermore, it has enough capacity to accept multiple watermarks. Abstract This work achieves several contributions in the ar

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Al-Nu'aimi, Abdallah S. N. A. "Design, Implementation and Performance Evaluation of Robust and Secure Watermarking Techniques for Digital Coloured Images. Designing new adaptive and robust imaging techniques for embedding and extracting 2D watermarks in the spatial and transform domain using imaging and signal processing techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4255.

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The tremendous spreading of multimedia via Internet motivates the watermarking as a new promising technology for copyright protection. This work is concerned with the design and development of novel algorithms in the spatial and transform domains for robust and secure watermarking of coloured images. These algorithms are adaptive, content-dependent and compatible with the Human Visual System (HVS). The host channels have the ability to host a large information payload. Furthermore, it has enough capacity to accept multiple watermarks. Abstract This work achieves several contributions in the

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Chammem, Afef. "Robust watermarking techniques for stereoscopic video protection." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2013. http://www.theses.fr/2013TELE0008.

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La multiplication des contenus stéréoscopique augmente les risques de piratage numérique. La solution technologique par tatouage relève ce défi. En pratique, le défi d’une approche de tatouage est d'atteindre l’équilibre fonctionnel entre la transparence, la robustesse, la quantité d’information insérée et le coût de calcul. Tandis que la capture et l'affichage du contenu 3D ne sont fondées que sur les deux vues gauche/droite, des représentations alternatives, comme les cartes de disparité devrait également être envisagée lors de la transmission/stockage. Une étude spécifique sur le domaine d’

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Rilk, Albrecht Johannes. "The flicker electroretinogram in phase space embeddings and techniques /." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969749384.

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Gezahagne, Azamed Yehuala. "Qualitative Models of Neural Activity and the Carleman Embedding Technique." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etd/1875.

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The two variable Fitzhugh Nagumo model behaves qualitatively like the four variable Hodgkin-Huxley space clamped system and is more mathematically tractable than the Hodgkin Huxley model, thus allowing the action potential and other properties of the Hodgkin Huxley system to be more readily be visualized. In this thesis, it is shown that the Carleman Embedding Technique can be applied to both the Fitzhugh Nagumo model and to Van der Pol's model of nonlinear oscillation, which are both finite nonlinear systems of differential equations. The Carleman technique can thus be used to obtain approxim

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Clarke, John-Paul Barrington. "An improved technique to determine the mount embedding impedance of SIS mixers." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/43267.

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Dzacka, Charles Nunya. "A Variation of the Carleman Embedding Method for Second Order Systems." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etd/1877.

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The Carleman Embedding is a method that allows us to embed a finite dimensional system of nonlinear differential equations into a system of infinite dimensional linear differential equations. This technique works well when dealing with first-order nonlinear differential equations. However, for higher order nonlinear ordinary differential equations, it is difficult to use the Carleman Embedding method. This project will examine the Carleman Embedding and a variation of the method which is very convenient in applying to second order systems of nonlinear equations.

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Bouaziz, Mohamed. "Réseaux de neurones récurrents pour la classification de séquences dans des flux audiovisuels parallèles." Thesis, Avignon, 2017. http://www.theses.fr/2017AVIG0224/document.

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Les flux de contenus audiovisuels peuvent être représentés sous forme de séquences d’événements (par exemple, des suites d’émissions, de scènes, etc.). Ces données séquentielles se caractérisent par des relations chronologiques pouvant exister entre les événements successifs. Dans le contexte d’une chaîne TV, la programmation des émissions suit une cohérence définie par cette même chaîne, mais peut également être influencée par les programmations des chaînes concurrentes. Dans de telles conditions,les séquences d’événements des flux parallèles pourraient ainsi fournir des connaissances supplém

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Alu, Kelechukwu Iroajanma. "Solving the Differential Equation for the Probit Function Using a Variant of the Carleman Embedding Technique." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1306.

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The probit function is the inverse of the cumulative distribution function associated with the standard normal distribution. It is of great utility in statistical modelling. The Carleman embedding technique has been shown to be effective in solving first order and, less efficiently, second order nonlinear differential equations. In this thesis, we show that solutions to the second order nonlinear differential equation for the probit function can be approximated efficiently using a variant of the Carleman embedding technique.

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Couairon, Guillaume. "Text-Based Semantic Image Editing." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS248.

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L’objectif de cette thèse est de proposer des algorithmes pour la tâche d’édition d’images basée sur le texte (TIE), qui consiste à éditer des images numériques selon une instruction formulée en langage naturel. Par exemple, étant donné une image d’un chien et la requête "Changez le chien en un chat", nous voulons produire une nouvelle image où le chien a été remplacé par un chat, en gardant tous les autres aspects de l’image inchangés (couleur et pose de l’animal, arrière- plan). L’objectif de l’étoile du nord est de permettre à tout un chacun de modifier ses images en util

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Huddlestone, Grant E. "Implementation and evaluation of two prediction techniques for the Lorenz time series." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53459.

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Thesis (MSc)-- Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: This thesis implements and evaluates two prediction techniques used to forecast deterministic chaotic time series. For a large number of such techniques, the reconstruction of the phase space attractor associated with the time series is required. Embedding is presented as the means of reconstructing the attractor from limited data. Methods for obtaining the minimal embedding dimension and optimal time delay from the false neighbour heuristic and average mutual information method are discussed. The first prediction algori

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Lammersen, Christiane [Verfasser], Christian [Akademischer Betreuer] Sohler, and auf der Heide Friedhelm [Gutachter] Meyer. "Approximation Techniques for Facility Location and Their Applications in Metric Embeddings / Christiane Lammersen. Betreuer: Christian Sohler. Gutachter: Friedhelm Meyer auf der Heide." Dortmund : Universitätsbibliothek Dortmund, 2011. http://d-nb.info/1103231618/34.

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Mieth, Therese [Verfasser], Dorothee [Gutachter] Haroske, Hans [Gutachter] Triebel, and David E. [Gutachter] Edmunds. "Entropy and approximation numbers of weighted Sobolev embeddings : a bracking technique / Therese Mieth ; Gutachter: Dorothee Haroske, Hans Triebel, David E. Edmunds." Jena : Friedrich-Schiller-Universität Jena, 2016. http://d-nb.info/117761152X/34.

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Majed, Aliah. "Sensing-based self-reconfigurable strategies for autonomous modular robotic systems." Electronic Thesis or Diss., Brest, École nationale supérieure de techniques avancées Bretagne, 2022. http://www.theses.fr/2022ENTA0013.

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Les systèmes robotiques modulaires (MRS) font aujourd’hui l’objet de recherches très actives. Ils ont la capacité de changer la perspective des systèmes robotiques, passant de machines conçues pour effectuer certaines tâches à des outils polyvalents capables d'accomplir presque toutes les tâches. Ils sont utilisés dans un large éventail d'applications, notamment la reconnaissance, les missions de sauvetage, l'exploration spatiale, les tâches militaires, etc. Constamment, MRS est constitué de "modules" allant de quelques à plusieurs centaines, voire milliers. Chaque module implique des actionne

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Chinea, Ríos Mara. "Advanced techniques for domain adaptation in Statistical Machine Translation." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/117611.

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[ES] La Traducción Automática Estadística es un sup-campo de la lingüística computacional que investiga como emplear los ordenadores en el proceso de traducción de un texto de un lenguaje humano a otro. La traducción automática estadística es el enfoque más popular que se emplea para construir estos sistemas de traducción automáticos. La calidad de dichos sistemas depende en gran medida de los ejemplos de traducción que se emplean durante los procesos de entrenamiento y adaptación de los modelos. Los conjuntos de datos empleados son obtenidos a partir de una gran variedad de fuentes y en mucho

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Tai, Wei-liang, and 戴維良. "Image Steganography and Reversible Data Embedding Techniques." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/19593007137305362660.

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博士<br>國立中正大學<br>資訊工程所<br>97<br>Steganography is the science of data hiding, which is proposed for undetectable communication. The sender embeds a secret message into the cover media, such as a digital image, with a slight distortion, so as to enable the receiver to extract the embedded message from the stego media, which is the distorted cover media. At the same time, the very existence of the embedded message must be impossible to be detected by any third party. The main requirement of steganography is statistical undetectability. That is, any attacker can not distinguish the cover media from

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Chen, Chang-Chu, and 陳昌助. "Efficient Image Encoding and Information Embedding Techniques." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/98218762506643291291.

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博士<br>國立中正大學<br>資訊工程所<br>98<br>Due to the progress made with computer hardware and software, the Internet has become the most popular channel for transmitting various forms of digital media. Since the environment of the Internet is insecure, covert communication via the network has become an important research topic in recent years. Data hiding is one useful solution to meet the security requirement. However, to save transmission bandwidth and storage space, digital media must be compressed first. Recent researches have examined hiding secret data in compression codes. In this dissertation, we

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Herath, Samudra Dilrukshi. "Embedding Techniques to Solve Large-scale Entity Resolution." Thesis, 2022. https://hdl.handle.net/2440/135396.

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Entity resolution (ER) identifies and links records that belong to the same real-world entities, where an entity refer to any real-world object. It is a primary task in data integration. Accurate and efficient ER substantially impacts various commercial, security, and scientific applications. Often, there are no unique identifiers for entities in datasets/databases that would make the ER task easy. Therefore record matching depends on entity identifying attributes and approximate matching techniques. The issues of efficiently handling large-scale data remain an open research problem with the i

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Tseng, Chun-Sen, and 曾春森. "Various Secret Embedding Schemes for Binary and Gray Level Techniques." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/37990572791021308352.

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碩士<br>國立中正大學<br>資訊工程所<br>93<br>The rapid advancement of the Internet and the technologies concerned has made the Internet the most popular channel for digital data exchanges. Generally speaking, digital data traveling or hanging around on the Internet can be in the form of text messages, images, audios, or videos. Despite the convenience the Internet offers for data exchanging, one major problem occurs. That is, the data on the Internet are vulnerable to attackers’ tampering, wiretapping, or stealing during the transmission processes. In order to deal with this problem, an approach has bee

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Liu, Jin-Rung, and 劉津榮. "Watermarking Scheme for Digital Images Using PSK、FSK Embedding Techniques." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/51278756286329285122.

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碩士<br>國立勤益科技大學<br>電子工程系<br>96<br>Nowadays, effective tools and equipment can be easily duplicated, manipulated, and digital multimedia materials broadcast without confinement. A duplication of a digital article can be undistinguishable from the original. Manipulation and editing of digital copies can deceive even the human eyes. Distribution without permission can spread over the world by the internet. Misappropriation of digital assets greatly concerns content owners and creators, especially when the content is made available through the internet. Without the assurance of proper protection ag

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Lu, Che-Wei, and 呂哲緯. "DWT Watermarking Techniques Based on Translation Map and Embedding Rule." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/15021774649852561337.

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碩士<br>淡江大學<br>資訊工程學系碩士班<br>98<br>Information hiding has become an important research issue in recent years, since developing techniques to solve unauthorized copying, tampering, and multimedia data delivery through the internet has been more and more urgent. The information hiding techniques mainly include steganography and digital watermarking. In this paper, we present two approaches that are able to reach image authentication and ownership protection even tampering detection. For the first approach, we use Discrete Wavelet Transformation (DWT) as major components. In order to gain the best

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Cho, Hsiu-Ying, and 卓秀英. "High-Performance Slow-Wave Transmission lines and Improved De-embedding Techniques." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/56359136905052179804.

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博士<br>國立交通大學<br>電子研究所<br>98<br>The patterned ground shield (PGS) must be well designed; otherwise they may not at all able to improve the quality factor. Investigations into different strip length, strip spacing and metal layer positions of the slot-type floating shields for wavelength, attenuation loss, and characteristic impedance, which have not yet been conducted before, are performed in this work. In general, the assumption for lumped-equivalent-circuit-model-based techniques is valid only if the lengths of the DUT devices are much smaller than the distances between two ports. However, th

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Liu, Tien-Chung, and 劉典忠. "The Study of Digital Images Embedding Techniques and Visual Secret Sharing Schemes." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/97818057453425691880.

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碩士<br>國立中正大學<br>資訊工程所<br>98<br>With the effect of world information technology, people transmit numerous digital data via the Internet in their daily life. Some of these digital data include the secret information of which the security and the safety is paid attention by scholars. To enhance the protection of the secret information, many encryption schemes are proposed. One of these schemes to encode the secret information into the digital images is called visual cryptography scheme. In this thesis, we propose two image encryption schemes which are non-reversible and reversible to embed a

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Kratochvíl, Jakub. "Dimension Reduction Techniques in Morhpometrics." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-313740.

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This thesis centers around dimensionality reduction and its usage on landmark-type data which are often used in anthropology and morphometrics. In particular we focus on non-linear dimensionality reduction methods - locally linear embedding and multidimensional scaling. We introduce a new approach to dimensionality reduction called multipass dimensionality reduction and show that improves the quality of classification as well as requiring less dimensions for successful classification than the traditional singlepass methods.

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賴宣宏. "A Study on Large-volume Data Embedding and Search Techniques for Information Hiding Applications." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/29276029258879526965.

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碩士<br>國立交通大學<br>資訊科學與工程研究所<br>95<br>With the advance of computer technologies and the popularity of the Internet, more and more data can be transmitted speedily and conveniently on public networks. In this study, first we propose a distortion-free and high-capacity data hiding method on GIF. This method duplicates colors of high frequencies to fill the unused color entries in the palette and uses the duplicated colors to hide secret message bits. It is found that more bits can be hidden by the method if colors with higher appearance frequencies are duplicated first. For PNG images, we propose

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Yang, Yu-Ze, and 楊渝澤. "The Study on the Application of De-embedding Techniques, Inductors and Pads in Silicon Process." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/85918835108331124049.

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碩士<br>國立中央大學<br>電機工程研究所<br>93<br>Abstract The purpose of this thesis studies on the de-embedded techniques applied in silicon base processes, such as CMOS and Silicon-Germanium technologies, the de-embedding techniques, parasitic effects, spiral inductors, and PADs will be discussed in detail. The spiral inductor designs are investigated with different shielding techniques. The quality factor Q and self-resonant frequency are the figure of merit of these inductor designs. The inductor with mesh deep trench shielding achieved the best quality factor and highest self resonant frequency. Finally,

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Götz, Kathrin Claudia. "Bond analysis of metal-element interactions in molecules and solids applying embedding and density functional techniques." Doctoral thesis, 2009. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-39373.

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Within this thesis, the analysis and hence the better comprehension of the chemical bond within metal–element compounds is the central topic. By use of various DFT methods a selection of M–E interactions have been modeled and analyzed via Bader’s QTAIM, the ELF and NBO techniques. Special focus was set on a series of transition metal borylene and carbene complexes, and the Li–C bonds as representatives for main group organometallics. Therefore, this thesis is split into three parts:(I) An introduction reviewing the quantum chemical machinery as well as the analysis tools applied for the evalua

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Hong, Jung M. "Integration of Micro Patterning Techniques into Volatile Functional Materials and Advanced Devices." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-05-791.

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Novel micro patterning techniques have been developed for the patterning of volatile functional materials which cannot be conducted by conventional photolithography. First, in order to create micro patterns of volatile materials (such as bio-molecules and organic materials), micro-contact printing and shadow mask methods are investigated. A novel micro-contact printing technique was developed to generate micro patterns of volatile materials with variable size and density. A PDMS (Polydimethylsiloxane) stamp with 2-dimensional pyramidal tip arrays has been fabricated by anisotropic silicon etch

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Sarnari, Alberto Jose. "Numerically Robust Load Flow Techniques in Power System Planning." Thesis, 2019. http://hdl.handle.net/2440/119928.

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Since deregulation of the electric power industry, investment in the sector has not kept up with demand. State grids were interconnected to form vast power networks, which increased the overall system’s complexity. Conventional generation sources have, in some cases, closed under financial stress caused by the growing penetration of renewable sources and unfavourable government measures. The power system must adapt to a more demanding environment to that for which it was conceived. This thesis investigates the robustness of planning and simulation study tools for the determination of bus-volta

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Lin, Chi-Yuan, and 林基源. "Embedding Genetic Algorithm, Grey Relation and Fuzzy Clustering Techniques into Neural Networks for Search of Optimal Codebook." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/70055091359056400880.

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博士<br>國立成功大學<br>電機工程學系碩博士班<br>92<br>A fundamental goal of image compression is to reduce the bit rate for transmission or data storage while maintaining an acceptable fidelity or image quality. Vector Quantization (VQ) is a popular method for image compression. The purpose of vector quantization is to create a codebook such that the average distortion between training vectors and their corresponding codevectors in the codebook is minimized. Neural networks are well suited to the problem of image compression due to their massively parallel and distributed architecture. The use of neural network

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Martinez-Garcia, Isaac Dutton Robert W. Howe Roger Wong S. "In-situ calibration and direct de-embedding of RF integrated circuits and microwave structures using self-compensating techniques." 2010. http://purl.stanford.edu/vd527pg7763.

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Mardis, Kristy Lynn. "Studies of rotational-vibrational coupling in coordinate embedding and the methane association reaction and potential energy surface refinement techniques." 1998. http://catalog.hathitrust.org/api/volumes/oclc/40807788.html.

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Götz, Kathrin Claudia [Verfasser]. "Bond analysis of metal element interactions in molecules and solids applying embedding and density functional techniques / vorgelegt von Kathrin Claudia Götz." 2009. http://d-nb.info/997741392/34.

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Krishna, Kumar S. "Blind Detection Techniques For Spread Spectrum Audio Watermarking." Thesis, 2007. https://etd.iisc.ac.in/handle/2005/588.

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In spreads pectrum (SS)watermarking of audio signals, since the watermark acts as an additive noise to the host audio signal, the most important challenge is to maintain perceptual transparency. Human perception is a very sensitive apparatus, yet can be exploited to hide some information, reliably. SS watermark embedding has been proposed, in which psycho-acoustically shaped pseudo-random sequences are embedded directly into the time domain audio signal. However, these watermarking schemes use informed detection, in which the original signal is assumed available to the watermark detector. Blin

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Krishna, Kumar S. "Blind Detection Techniques For Spread Spectrum Audio Watermarking." Thesis, 2007. http://hdl.handle.net/2005/588.

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In spreads pectrum (SS)watermarking of audio signals, since the watermark acts as an additive noise to the host audio signal, the most important challenge is to maintain perceptual transparency. Human perception is a very sensitive apparatus, yet can be exploited to hide some information, reliably. SS watermark embedding has been proposed, in which psycho-acoustically shaped pseudo-random sequences are embedded directly into the time domain audio signal. However, these watermarking schemes use informed detection, in which the original signal is assumed available to the watermark detector. Blin

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