Preprinti (MII) / Preprints

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Browsing Preprinti (MII) / Preprints by Author "Opmanis, Mārtiņš"

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    About Correctness of Graph-Based Social Network Analysis
    (2017-07-24) Opmanis, Mārtiņš
    Social network analysis widely uses graph techniques. Together with correct applications, in some cases, results are obtained from the graphs using paths longer than one, and due to intransitivity of relationships, several metrics and results are not applicable backward to objects in the investigated domain in a meaningful way. The author provides several examples and tries to recover roots of an incorrect application of graphs.
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    Fragile Correctness of Social Network Analysis
    (2016-11-07) Opmanis, Mārtiņš
    Graph techniques are widely used in social network analysis. However, there are some disputable applications where results are obtained from the graphs using paths longer than one and are not simply applicable to objects in the initial domain. The author provides several examples of such usages and tries to recover roots of an incorrect application of graphs.
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    Root cause analysis of large scale application testing results
    (2015-08-24) Opmanis, Rūdolfs; Ķikusts, Paulis; Opmanis, Mārtiņš
    In this paper we present a new root cause analysis algorithm for discovering the most likely causes of the differences found in testing results of two versions of the same software. The problematic points in test and environment attribute hierarchies are presented to the user in compact way which in turn allows to save time on test result processing. We have proven that for clearly separated problem causes our algorithm gives exact solution. Practical application of described method is discussed.