Blar i Department of Informatics på dokumenttype "Doctoral thesis"

Viser treff 1-20 av 106

    • Abstractions for Language-Independent Program Transformations 

      Kalleberg, Karl Trygve (Doctoral thesis, 2007-06-27)

    • Algebraic Cryptanalysis of Cryptographic Schemes with Extension Field Structure 

      Øygarden, Morten (Doctoral thesis, 2021-09-06)
      Post-Quantum Cryptography studies cryptographic algorithms that quantum computers cannot break. Recent advances in quantum computing have made this kind of cryptography necessary, and research in the field has surged over ...

    • Algorithmic Complexity of Clustering and Low-Rank Approximation Problems 

      Simonov, Kirill (Doctoral thesis, 2021-03-29)
      The two most popular unsupervised learning problems are k-Clustering and Low-Rank Approximation. Consider a set of n datapoints, in the k-Clustering problem, the objective is to partition these points into k clusters and ...

    • Analysis, classification and construction of optimal cryptographic Boolean functions 

      Villa, Irene (Doctoral thesis, 2021-01-04)
      Modern cryptography is deeply founded on mathematical theory and vectorial Boolean functions play an important role in it. In this context, some cryptographic properties of Boolean functions are defined. In simple terms, ...

    • Assessing and Mitigating Risks in Computer Systems 

      Netland, Lars-Helge (Doctoral thesis, 2008-09-26)
      When it comes to non-trivial networked computer systems, bulletproof security is very hard to achieve. Over a system's lifetime new security risks are likely to emerge from e.g. newly discovered classes of vulnerabilities ...

    • Assumptions, Efficiency and Trust in Non-Interactive Zero-Knowledge Proofs 

      Ødegaard, Arne Tobias (Doctoral thesis, 2022-11-04)
      Vi lever i en digital verden. En betydelig del av livene våre skjer på nettet, og vi bruker internett for stadig flere formål og er avhengig av stadig mer avansert teknologi. Det er derfor viktig å beskytte seg mot ondsinnede ...

    • Beyond the question of fixed-parameter tractability 

      Dregi, Markus Fanebust (Doctoral thesis, 2017-01-06)
      Multivariate complexity is a prominent field that over the last decades has developed a rich toolbox, not only to tackle seemingly intractable problems, but also to describe the boundaries of tractability in a richer and ...

    • Biomarker Discovery Using Statistical and Machine Learning Approaches on Gene Expression Data 

      Zhang, Xiaokang (Doctoral thesis, 2020-10-30)
      My PhD is affiliated with the dCod 1.0 project (https://www.uib.no/en/dcod): decoding the systems toxicology of Atlantic cod (Gadus morhua), which aims to better understand how cods adapt and react to the stressors in the ...

    • Case Studies in Constructive Mathematics 

      Parmann, Erik (Doctoral thesis, 2016-01-22)
      The common theme in this thesis is the study of constructive provability: in particular we investigate aspects of finite sets and Kan simplicial sets from a constructive perspective. There are numerous definitions of finiteness ...

    • Characteristics of Pyrosequencing Data – Analysis, Methods, and Tools 

      Balzer, Susanne Mignon (Doctoral thesis, 2013-06-17)
      The introduction of this thesis provides background knowledge on the 454 sequencing technology and a detailed review of the most relevant sequencing artifacts. Chapter 1 puts the 454 sequencing technology into a historical ...

    • Choice of parameter for DP-based FPT algorithms: four case studies 

      Sæther, Sigve Hortemo (Doctoral thesis, 2015-09-07)
      This thesis studies dynamic programming algorithms and structural parameters used when solving computationally hard problems. In particular, we look at algorithms that make use of structural decompositions to overcome ...

    • Clique-Based Neural Associative Memories 

      Abolpour Mofrad, Asieh (Doctoral thesis, 2021-11-15)
      Auto-associative memories store a set of patterns and retrieve them by resorting to a part of their contents. This thesis focuses on developing and extending a type of associative memories relying on a sort of coded neural ...

    • Coding for passive RFID communication 

      Yang, Guang (Doctoral thesis, 2012-08-31)
      This dissertation elaborates on channel coding for reliable communication in passive RFID systems. RFID applications have been developed and used widely. Since a passive RFID tag has no power requirements, passive RFID has ...

    • Coding for Privacy in Distributed Computing 

      Schlegel, Reent (Doctoral thesis, 2023-04-21)
      I et distribuert datanettverk samarbeider flere enheter for å løse et problem. Slik kan vi oppnå mer enn summen av delene: samarbeid gjør at problemet kan løses mer effektivt, og samtidig blir det mulig å løse problemer ...

    • Computational analysis of the evolutionary dynamics of proteins on a genomic scale 

      Hughes, Timothy (Doctoral thesis, 2007-01-16)
      Biology is primarily concerned with the study of all phenotypic aspects of living organisms and evolutionary biology is more specifically interested in elucidating how different phenotypes evolved. Proteins (and RNA ...

    • Cryptanalysis of Cryptographic Primitives and Related Topics 

      Hassanzadeh, Seyed Mehdi Mohammad (Doctoral thesis, 2011-09-09)
      This thesis has focused on the cryptanalysis of cryptographic primitives especially stream ciphers which is an important topic in cryptography. Additionally, the security of network coding is discussed and improved with a ...

    • Cryptology in the Crowd 

      Heum, Hans Waardal (Doctoral thesis, 2023-12-08)
      Uhell skjer: Kanskje mistet du nøkkelen til huset, eller hadde PIN-koden til innbruddsalarmen skrevet på en dårlig plassert post-it lapp. Og kanskje endte de slik opp i hendene på feil person, som nå kan påføre livet ditt ...

    • Decoding and constructions of codes in rank and Hamming metric 

      Kadir, Wrya Karim (Doctoral thesis, 2022-05-27)
      As coding theory plays an important role in data transmission, decoding algorithms for new families of error correction codes are of great interest. This dissertation is dedicated to the decoding algorithms for new families ...

    • Deep Learning and Deep Reinforcement Learning for Graph Based Applications 

      Hasibi, Ramin (Doctoral thesis, 2024-01-26)
      Dyp læring har gitt state-of-the-art ytelse i mange applikasjoner som datasyn, tekstanalyse, biologi, osv. Suksessen med dyp læring har også hjulpet fremveksten av dyp forsterkende læring for optimal beslutningstaking og ...

    • Design of sequences with good correlation properties 

      Zhang, Dan (Doctoral thesis, 2021-08-26)
      This thesis is dedicated to exploring sequences with good correlation properties. Periodic sequences with desirable correlation properties have numerous applications in communications. Ideally, one would like to have a set ...