Browsing Department of Informatics by Issue Date
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Scaling the scales  A suggested improvement to IBM's Intelligent Recommendation Algorithm
(The University of Bergen, 20141120)Recommender systems appear in a large variety of applications, and their use has become very common in recent years. As a lot of money can be made by companies having a better recommender system than their competitors, ...Master thesis 
The index tracking problem with a limit on portfolio size
(The University of Bergen, 20141119)For a passive fund manager tracking a benchmark, it is not uncommon to select some, and not all the assets in the index to his portfolio. In this thesis, we consider the problem of minimizing the tracking error under the ...Master thesis 
Optimal ternary cyclic codes with minimum distance four and five
(Elsevier, 201411)Cyclic codes are an important subclass of linear codes and have wide applications in data storage systems, communication systems and consumer electronics. In this paper, two families of optimal ternary cyclic codes are ...Journal article 
Interactively illustrating polymerization using threelevel model fusion
(BioMed Central, 20141014)Background: Research in cell biology is steadily contributing new knowledge about many aspects of physiological processes, both with respect to the involved molecular structures as well as their related function. Illustrations ...Journal article 
Solving the 2disjoint connected subgraphs problem faster than 2ⁿ
(Springer, 201410)The 2DISJOINT CONNECTED SUBGRAPHS problem, given a graph along with two disjoint sets of terminals Z1,Z2, asks whether it is possible to find disjoint sets A1,A2, such that Z1 ⊆ A1, Z2 ⊆ A2 and A1,A2 induce connected ...Journal article 
Interactive Visual Analysis of Streaming Data
(Universitetet i Bergen (UiB), 20140923)Interactive Visual Analysis (IVA) has proven to be a robust set of methods for visually exploring complex data sets and generating hypotheses from data. Datasets and techniques where the temporal aspect is central has been ...Master thesis 
Sketchbased Modelling and Conceptual Visualization of Geomorphological Processes for Interactive Scientific Communication
(The University of Bergen, 20140919)Throughout this dissertation, solutions for rapid digitalization of ideas will be defined. More precisely, the focus is on interactive scientific sketching and communication of geology, where the result is a digital ...Doctoral thesis 
Practical Aspects of the Graph Parameter Booleanwidth
(The University of Bergen, 20140818)Doctoral thesis 
The Weight Distributions of Several Classes of Cyclic Codes From APN Monomials
(IEEE, 201408)Let m ≥ 3 be an odd integer and p be an odd prime. In this paper, a number of classes of threeweight cyclic codes C(1,e) over Fp, which have paritycheck polynomial m1(x)me (x), are presented by examining general ...Journal article 
Sequences and Linear Codes from Highly Nonlinear Functions
(The University of Bergen, 20140616)Due to optimal nonlinearity and differential uniformity, perfect nonlinear (PN) and almost perfect nonlinear (APN) functions are of great importance in cryptography. It is interesting that they also define optimal objects ...Doctoral thesis 
Elastic Grid Resources using Cloud Technologies
(The University of Bergen, 20140602)A Large Ion Collider Experiment (ALICE) is one of four experiments at the Large Hadron Collider (LHC) at CERN. The detectors in the ALICE experiment produce data at a rate of 4 GB/s after being filtered and compressed ...Master thesis 
Software modeling of the propagation of electromagnetic beams through different media
(The University of Bergen and Bergen University College, 20140602)Propagation and focusing of electromagnetic beams through layered anisotropic medium is of interest in the field of optical data storage, where thin layers are mounted on glass substrates, display technology, where polarised ...Master thesis 
On the feasibility of distributed systems for interactive visual analysis of omics data
(The University of Bergen, 20140602)The purpose of this thesis is to discuss the feasibility of developing a distributed interactive visual analysis omics system demonstrating how selected modules from the standalone JExpress Modularized application ...Master thesis 
A polynomialtime solvable case for the NPhard problem Cutwidth
(The University of Bergen, 20140602)The Cutwidth problem is a notoriously hard problem, and its complexity is open on several interesting graph classes. Motivated by this fact we investigate the problem on superfragile graphs, a graph class on which the ...Master thesis 
Fast methods to solve the pooling problem
(The University of Bergen, 20140531)In pipeline transportation of natural gas, simple network flow problems are replaced by hard ones when bounds on the flow quality are imposed. The sources, typically represented by gas wells, provide flow of unequal ...Master thesis 
Linear dependencies between nonuniform distributions in DES
(The University of Bergen, 20140530)Davies and Murphy explained some nonuniform distributions of the output from pairs and triplets of Sboxes in DES, and how they are completely dependent on some key bits. There are linear dependencies between these ...Master thesis 
So you've got IPv6 address space. Can you defend it?
(The University of Bergen, 20140529)Internet Protocol version 6 (IPv6) is the successor of Internet Protocol version 4 (IPv4). IPv6 will become the next standard networking protocol on the Internet. It brings with it a great increase in address space, changes ...Master thesis 
Perceptually Uniform Motion Space
(IEEE, 20140507)Flow data is often visualized by animated particles inserted into a flow field. The velocity of a particle on the screen is typically linearly scaled by the velocities in the data. However, the perception of velocity ...Journal article 
Continuous LevelsofDetail and Visual Abstraction for Seamless Molecular Visualization
(Wiley, 20140506)Molecular visualization is often challenged with rendering of large molecular structures in real time. We introduce a novel approach that enables us to show even large protein complexes. Our method is based on the ...Journal article 
On cutwidth parameterized by vertex cover
(Springer, 201404)We study the CUTWIDTH problem, where the input is a graph G, and the objective is find a linear layout of the vertices that minimizes the maximum number of edges intersected by any vertical line inserted between two ...Journal article