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Relevant bibliographies by topics / Informational compression / Dissertations / Theses

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Dissertations / Theses on the topic 'Informational compression'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Ibikunle, John Olutayo. "Projection domain compression of image information." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/47614.

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2

Maniccam, Suchindran S. "Image-video compression, encryption and information hiding /." Online version via UMI:, 2001.

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3

Hoque, Abu Sayed Md Latiful. "Compression of structured and semi-structured information." Thesis, University of Strathclyde, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405329.

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4

Hong, Lihao. "Pavement Information System: Detection, Classification and Compression." Connect to full text in OhioLINK ETD Center, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1260901996.

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Thesis (M.S.)--University of Toledo, 2009.<br>Typescript. "Submitted as partial fulfillment of the requirements for The Master of Science Degree in Engineering." "A thesis entitled"--at head of title. Bibliography: leaves 55-56.

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5

Hong, Edwin S. "Group testing for image compression /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/6900.

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6

Presnell, Stuart. "Minimal resources in quantum information theory : compression and measurement." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399944.

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7

Baylon, David M. "Video compression with complete information for pre-recorded sources." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/81520.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (p. 123-130).<br>by David Michael Baylon.<br>Ph.D.

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8

Kerviche, Ronan, and Amit Ashok. "Scalable information-optimal compressive target recognition." SPIE-INT SOC OPTICAL ENGINEERING, 2016. http://hdl.handle.net/10150/621547.

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We present a scalable information-optimal compressive imager optimized for the target classification task, discriminating between two target classes. Compressive projections are optimized using the Cauchy-Schwarz Mutual Information (CSMI) metric, which provides an upper-bound to the probability of error of target classification. The optimized measurements provide significant performance improvement relative to random and PCA secant projections. We validate the simulation performance of information-optimal compressive measurements with experimental data.

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9

Reid, Mark Montgomery. "Path-dictated, lossless volumetric data compression." Thesis, University of Ulster, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338194.

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10

Toufie, Moegamat Zahir. "Real-time loss-less data compression." Thesis, Cape Technikon, 2000. http://hdl.handle.net/20.500.11838/1367.

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Thesis (MTech (Information Technology))--Cape Technikon, Cape Town, 2000<br>Data stored on disks generally contain significant redundancy. A mechanism or algorithm that recodes the data to lessen the data size could possibly double or triple the effective data that could be stored on the media. One mechanism of doing this is by data compression. Many compression algorithms currently exist, but each one has its own advantages as well as disadvantages. The objective of this study', to formulate a new compression algorithm that could be implemented in a real-time mode in any file system

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11

Shih, An-Zen. "Fractal compression analysis of superdeformed nucleus data." Thesis, University of Liverpool, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266091.

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Gargouri, Yosra. "Nouveau récepteur radio numérique pour les observations astrophysiques spatiales dans la bande de fréquence 1 kHz à 50 MHz." Thesis, Paris, ENST, 2017. http://www.theses.fr/2017ENST0057/document.

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Plusieurs phénomènes astronomiques émettent des ondes radios basses fréquences tels que les éruptions solaires, les magnétosphères, les pulsars . . . Certains de ces ondes sont mal captées par les observatoires terrestres à cause, principalement, de la coupure ionosphérique. Il devient indispensable d’envoyer des récepteurs radio dans l’espace pour les acquérir. Cependant, ces récepteurs sont consommation d’énergie et le taux de transmission. Un paradigme récent pour l’acquisition et la reconstruction des signaux, appelé l’échantillonnage comprimé (Compressive sampling, Compressed Sensing, CS)

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13

Sans, Thierry. "Beyond access control - specifying and deploying security policies in information systems." Télécom Bretagne, 2007. http://www.theses.fr/2007TELB0040.

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Les services multimédia de type " streaming ", exigent classiquement des performances élevées du réseau (haut débit, faible taux d'erreur et délai bref), en contradiction avec les importantes contraintes que subissent les réseaux sans fil (bande passante limitée, canaux souvent bruités et états de réseau très changeants). Dans cette thèse, nous étudions l'hypothèse que cet environnement subissant des contraintes importantes exige des architectures spécifiques à l'application, plutôt que des architectures généralistes, afin d'augmenter l'efficacité d'utilisation des ressources du réseau. Plus p

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14

Kheirkhahzadeh, Antonio. "On the performance of markup language compression." Thesis, University of West London, 2015. https://repository.uwl.ac.uk/id/eprint/1266/.

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Data compression is used in our everyday life to improve computer interaction or simply for storage purposes. Lossless data compression refers to those techniques that are able to compress a file in such ways that the decompressed format is the replica of the original. These techniques, which differ from the lossy data compression, are necessary and heavily used in order to reduce resource usage and improve storage and transmission speeds. Prior research led to huge improvements in compression performance and efficiency for general purpose tools which are mainly based on statistical and dictio

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15

Zemouri, Rachid. "Data compression of speech using sub-band coding." Thesis, University of Newcastle Upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316094.

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Tang, P. S. "Data compression for high precision digital waveform recording." Thesis, City University London, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384076.

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17

Sun, Wei. "Joint Compression and Digital Watermarking: Information-Theoretic Study and Algorithms Development." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2890.

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In digital watermarking, a watermark is embedded into a covertext in such a way that the resulting watermarked signal is robust to certain distortion caused by either standard data processing in a friendly environment or malicious attacks in an unfriendly environment. The watermarked signal can then be used for different purposes ranging from copyright protection, data authentication,fingerprinting, to information hiding. In this thesis, digital watermarking will be investigated from both an information theoretic viewpoint and a numerical computation viewpoint. <br /><br /> From the i

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18

Sun, Zuwen. "Effect of Photoacoustic Radar Chirp Parameters on Profilometric Information." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37116.

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Photoacoustic imaging for biomedical application has attracted much research in recent years. To date, most of the work has focused on pulsed photoacoustics. Recent developments have seen the implementation of a radar pulse compression methodology into continuous wave photoacoustic modality, however very little theory has been developed in support of this approach. In this thesis, the one-dimensional theory of radar photoacousticsfor pulse compressedlinear frequency modulated continuous sinusoidal laserphotoacoustics is developed.The effect of the chirp parameters on the corresponding photoac

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Hansen, Vedal Amund. "Unsupervised Audio Spectrogram Compression using Vector Quantized Autoencoders." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264947.

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Despite the recent successes of neural networks in a variety of domains, musical audio modeling is still considered a hard task, with features typically spanning tens of thousands of dimensions in input space. By formulating audio data compression as an unsupervised learning task, this project investigates the applicability of vector quantized neural network autoencoders for compressing spectrograms – image-like representations of audio. Using a recently proposed gradient-based method for approximating waveforms from reconstructed (real-valued) spectrograms, the discrete pipeline produces list

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20

Beirami, Ahmad. "Network compression via network memory: fundamental performance limits." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53448.

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The amount of information that is churned out daily around the world is staggering, and hence, future technological advancements are contingent upon development of scalable acquisition, inference, and communication mechanisms for this massive data. This Ph.D. dissertation draws upon mathematical tools from information theory and statistics to understand the fundamental performance limits of universal compression of this massive data at the packet level using universal compression just above layer 3 of the network when the intermediate network nodes are enabled with the capability of memorizing

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21

North, Phillip. "One-Bit Compressive Sensing with Partial Support Information." Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/cmc_theses/1194.

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This work develops novel algorithms for incorporating prior-support information into the field of One-Bit Compressed Sensing. Traditionally, Compressed Sensing is used for acquiring high-dimensional signals from few linear measurements. In applications, it is often the case that we have some knowledge of the structure of our signal(s) beforehand, and thus we would like to leverage it to attain more accurate and efficient recovery. Additionally, the Compressive Sensing framework maintains relevance even when the available measurements are subject to extreme quantization. Indeed, the field of On

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22

Mroueh, Youssef. "From bits to information : learning meets compressive sensing." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/97809.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 174-182).<br>A quantization approach to supervised learning, compressive sensing, and phase retrieval is presented in this thesis. We introduce a set of common techniques that allow us, in those three settings, to represent high dimensional data using the order statistics of linear and non linear measurements. We introduce new algorithms for signals classification in the multiclass and the

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23

Qin, Jing. "Prior Information Guided Image Processing and Compressive Sensing." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1365020074.

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24

Martin, Wickus. "A lossy, dictionary -based method for short message service (SMS) text compression." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/6415.

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Short message service (SMS) message compression allows either more content to be fitted into a single message or fewer individual messages to be sent as part of a concatenated (or long) message. While essentially only dealing with plain text, many of the more popular compression methods do not bring about a massive reduction in size for short messages. The Global System for Mobile communications (GSM) specification suggests that untrained Huffman encoding is the only required compression scheme for SMS messaging, yet support for SMS compression is still not widely available on current handsets

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Jiang, Jianmin. "Multi-media data compression and real-time novel architectures implementation." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239417.

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26

Reeder, Brian Martin. "Application of artificial neural networks for spacecraft instrument data compression." Thesis, University of Sussex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362216.

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27

Caillaud, Florian. "Compression progressive de maillages surfaciques texturés." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI004/document.

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Depuis plusieurs années, les modèles 3D deviennent de plus en plus détaillés. Cela augmente considérablement le volume de données les décrivant. Cependant, dans un même temps, un nombre croissant d’applications sont contraintes en mémoire et/ou en vitesse (visualisation sur périphériques mobiles, jeux vidéos, etc.). Dans un contexte Web, ces difficultés sont encore plus présentes. Cette situation peut entraîner des incompatibilités, des latences de transmission ou d’affichage qui sont souvent problématiques. La compression progressive de ces modèles est une des solutions envisageables. Le but

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Nylander, Jonathan. "Texture compression for iOS : A case study." Thesis, Högskolan i Skövde, Institutionen för kommunikation och information, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-8179.

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Due to limited hardware, effectively using the available resources is crucial for mobile games. Texture compression is a fundamental technique in game development to reduce the demand of memory and bandwidth usage. This thesis evaluates JPEG, PVRTC and uncompressed PVR with emphasis on loading time, memory footprint, application size and visual quality. The goal of this case study is to find the most suitable compression technique for a specific game. A variant of uncompressed PVR, RGBA4444, was found to be the best technique to use in this case. It was also concluded that JPEG compression in

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Höglund, Simon. "Lightweight Real-Time Lossless Software Compression of Trace Data." Thesis, Linköpings universitet, Datorteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-179717.

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Powerful System-on-Chip (SoC) produced today has an increasing complexity, featuringmore processors and integrated specialized hardware. This is the case with the EricssonMany-Core Architecture (EMCA) that runs the complex radio modulation standardswithin 3G, 4G and 5G. Such complicated systems require trace data to debug and verifyits behavior. Massive amounts of hardware and software traces can be produced in ashort time. Data compression is a technique to reduce the amount of memory spacerequired by reducing redundancy in the information. Compression of trace data leads toincreased throughp

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Kodukulla, Surya Teja. "Lossless Image compression using MATLAB : Comparative Study." Thesis, Blekinge Tekniska Högskola, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-20038.

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Context: Image compression is one of the key and important applicationsin commercial, research, defence and medical fields. The largerimage files cannot be processed or stored quickly and efficiently. Hencecompressing images while maintaining the maximum quality possibleis very important for real-world applications. Objectives: Lossy compression is widely popular for image compressionand used in commercial applications. In order to perform efficientwork related to images, the quality in many situations needs to be highwhile having a comparatively low file size. Hence lossless compressionalgori

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31

Zhao, Jing. "Information theoretic approach for low-complexity adaptive motion estimation." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0013068.

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32

Coudray, Renan. "Réutilisation des informations de compensation de mouvement d'un flux MPEG." La Rochelle, 2005. http://www.theses.fr/2005LAROS147.

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La norme de compression vidéo la plus répandue est le standard MPEG (Moving Picture Experts Group), notamment utilisé pour la diffusion des chaînes de télévision numériques (Digital Video Broadcasting). Pour réduire la redondance temporelle des données, des informations de compensation de mouvement sont calculées par l'encodeur et sont transmises dans le flux. La première partie des travaux montre comment réutiliser l'information de compensation de mouvement d'un flux MPEG et une nouvelle méthode d'estimation du mouvement global (ou mouvement de la caméra) est proposée. La deuxième partie conc

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Gargouri, Yosra. "Nouveau récepteur radio numérique pour les observations astrophysiques spatiales dans la bande de fréquence 1 kHz à 50 MHz." Electronic Thesis or Diss., Paris, ENST, 2017. http://www.theses.fr/2017ENST0057.

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Plusieurs phénomènes astronomiques émettent des ondes radios basses fréquences tels que les éruptions solaires, les magnétosphères, les pulsars . . . Certains de ces ondes sont mal captées par les observatoires terrestres à cause, principalement, de la coupure ionosphérique. Il devient indispensable d’envoyer des récepteurs radio dans l’espace pour les acquérir. Cependant, ces récepteurs sont consommation d’énergie et le taux de transmission. Un paradigme récent pour l’acquisition et la reconstruction des signaux, appelé l’échantillonnage comprimé (Compressive sampling, Compressed Sensing, CS)

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34

Boström, Kim. "Lossless quantum data compression and secure direct communication." Phd thesis, Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2005/100/.

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Diese Dissertation behandelt die Kodierung und Verschickung von Information durch einen Quantenkanal. Ein Quantenkanal besteht aus einem quantenmechanischen System, welches vom Sender manipuliert und vom Empfänger ausgelesen werden kann. Dabei repräsentiert der individuelle Zustand des Kanals die Nachricht. <br /> <br /> Die zwei Themen der Dissertation umfassen 1) die Möglichkeit, eine Nachricht in einem Quantenkanal verlustfrei zu komprimieren und 2) die Möglichkeit eine Nachricht von einer Partei zu einer einer anderen direkt und auf sichere Weise zu übermitteln, d.h. ohne dass es einer dri

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35

Chen, Meng-Yang. "Compressive sensing with side information : analysis, measurements design and applications." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10043090/.

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Compressive sensing is a breakthrough technology in view of the fact that it enables the acquisition and reconstruction of certain signals with a number of measurements much lower than those dictated by the Shannon-Nyquist paradigm. It has also been recognised in the last few years that it is possible to improve compressive sensing systems by leveraging additional knowledge – so-called side information – that may be available about the signal of interest. The goal of this thesis is to investigate how to improve the acquisition and reconstruction process in compressive sensing systems in the pr

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36

Fayolle, Julien. "Compression de données sans perte et combinatoire analytique." Paris 6, 2006. http://www.theses.fr/2006PA066028.

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37

Penev, Tsvetan [Verfasser]. "Supporting the Aircraft Access to System Wide Information Management through Data Compression / Tsvetan Penev." München : Verlag Dr. Hut, 2018. http://d-nb.info/1164294008/34.

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38

Yamazato, Takaya, Iwao Sasase, and Shinsaku Mori. "Interlace Coding System Involving Data Compression Code, Data Encryption Code and Error Correcting Code." IEICE, 1992. http://hdl.handle.net/2237/7844.

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39

Arbring, Joel, and Patrik Hedström. "On Data Compression for TDOA Localization." Thesis, Linköping University, Information Coding, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57274.

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<p>This master thesis investigates different approaches to data compression on common types of signals in the context of localization by estimating time difference of arrival (TDOA). The thesis includes evaluation of the compression schemes using recorded data, collected as part of the thesis work. This evaluation shows that compression is possible while preserving localization accuracy.</p><p>The recorded data is backed up with more extensive simulations using a free space propagation model without attenuation. The signals investigated are flat spectrum signals, signals using phase-shift keyi

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40

Ferdeen, Mats. "Reducing Energy Consumption Through Image Compression." Thesis, Linköpings universitet, Datorteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-134335.

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The energy consumption to make the off-chip memory writing and readings are aknown problem. In the image processing field structure from motion simpler compressiontechniques could be used to save energy. A balance between the detected features suchas corners, edges, etc., and the degree of compression becomes a big issue to investigate.In this thesis a deeper study of this balance are performed. A number of more advancedcompression algorithms for processing of still images such as JPEG is used for comparisonwith a selected number of simpler compression algorithms. The simpler algorithms canbe

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41

Bouilhaguet, Frédéric. "Architecture de systèmes MPEG-4." Paris, ENST, 2001. http://www.theses.fr/2001ENST0044.

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42

Devulapalli, Venkata Lakshmi Narasimha. "Application of Huffman Data Compression Algorithm in Hashing Computation." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/2614.

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Cryptography is the art of protecting information by encrypting the original message into an unreadable format. A cryptographic hash function is a hash function which takes an arbitrary length of the text message as input and converts that text into a fixed length of encrypted characters which is infeasible to invert. The values returned by the hash function are called as the message digest or simply hash values. Because of its versatility, hash functions are used in many applications such as message authentication, digital signatures, and password hashing [Thomsen and Knudsen, 2005]. The purp

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Russ, Samuel H. "An information-theoretic approach to analysis of computer architectures and compression of instruction memory usage." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/13357.

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Криводуб, Анна Сергіївна, Анна Сергеевна Криводуб, Anna Serhiivna Kryvodub, et al. "Information Technology Distribution of Applications between Operators of the Compressor Station." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/47080.

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Ergatic automated systems with many active operators are researched. The problem of choosing the optimal fixing of the man-operator for an application for execution of the function is examined. Questions the effectiveness and appropriateness of information technology have been described.

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45

Kron, Niklas. "Compressive sensing : For array signals." Thesis, Uppsala universitet, Institutionen för elektroteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-411417.

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46

Baghali, Khanian Zahra. "From Quantum Source Compression to Quantum Thermodynamics." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/671034.

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Aquesta tesi aborda problemes en el camp de la teoria de la informació quàntica, específicament, la teoria quàntica de Shannon. La primera part de la tesi comença amb definicions concretes de models de fonts quàntiques generals i la seva compressió, i cada capítol següent aborda la compressió d’un model de font específic com a casos especials dels models generals definits inicialment. Primer, trobem la taxa de compressió òptima d’una font d’estats barreja general que inclou com a casos especials tots els models prèviament estudiats, com les fonts pures i de col·lectivitats de Schumacher, i al

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47

Gardner-Stephen, Paul Mark, and paul gardner-stephen@flinders edu au. "Explorations In Searching Compressed Nucleic Acid And Protein Sequence Databases And Their Cooperatively-Compressed Indices." Flinders University. Computer Science, Engineering & Mathematics, 2008. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20081111.105047.

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Nucleic acid and protein databases such as GenBank are growing at a rate that perhaps eclipses even Moores Law of increase in computational power. This poses a problem for the biological sciences, which have become increasingly dependant on searching and manipulating these databases. It was once reasonably practical to perform exhaustive searches of these databases, for example using the algorithm described by Smith and Waterman, however it has been many years since this was the case. This has led to the development of a series of search algorithms, such as FASTA, BLAST and BLAT, that are eac

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Zhang, Nan. "TRANSFORM BASED AND SEARCH AWARE TEXT COMPRESSION SCHEMES AND COMPRESSED DOMAIN TEXT RETRIEVAL." Doctoral diss., University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3938.

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In recent times, we have witnessed an unprecedented growth of textual information via the Internet, digital libraries and archival text in many applications. While a good fraction of this information is of transient interest, useful information of archival value will continue to accumulate. We need ways to manage, organize and transport this data from one point to the other on data communications links with limited bandwidth. We must also have means to speedily find the information we need from this huge mass of data. Sometimes, a single site may also contain large collections of data such as

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49

Guichaoua, Corentin. "Modèles de compression et critères de complexité pour la description et l'inférence de structure musicale." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S053/document.

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Une définition très générale de la structure musicale consiste à considérer tout ce qui distingue la musique d'un bruit aléatoire comme faisant partie de sa structure. Dans cette thèse, nous nous intéressons à l'aspect macroscopique de cette structure, en particulier la décomposition de passages musicaux en unités autonomes (typiquement, des sections) et à leur caractérisation en termes de groupements d'entités élémentaires conjointement compressibles. Un postulat de ce travail est d'établir un lien entre l'inférence de structure musicale et les concepts de complexité et d'entropie issus de la

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50

Boström, Kim Joris. "Lossless quantum data compression and secure direct communication : new concepts and methods for quantum information theory /." Saarbrücken : VDM-Verl. Dr. Müller, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=3022795&prov=M&dok_var=1&dok_ext=htm.

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