Search results for "Viterbi"
showing 3 items of 3 documents
Detection of TV commercials
2004
This paper presents a system that labels TV shots either as commercial or program shots. The system uses two observations: logo presence and shot duration. These observations are modeled using HMMs, and a Viterbi decoder is finally used for shot labeling. The system has been tested on several hours of real video, achieving more than 99% correct labeling.
Finanšu risku pārvaldība, izmantojot slēpto Markova modeli
2017
Bakalaura darbā pamatā tika apskatīts slēptais Markova modelis (SMM), kas tiek izmantots dažādās nozarēs, kā piemēram, matemātikā, fizikā, medicīnā un citur. Vēstures apraksts sniedz informāciju par Markova modeļa pirmsākumiem un pielietojumiem. Savukārt Markova process ir pamats slēptajam Markova modelim. Slēptais Markova modelis galvenokārt saskaras ar trīs galvenajām problēmām, kurām tiks sniegts risinājums. Svarīgi ir zināt SMM teorētisko pielietojumu akciju tirgum, lai pārvaldītu finanšu riskus. Bakalaura darba praktiskā daļa ir veidota uz reāliem, publiski pieejamiem Baltijas akciju tirgus cenu datiem. Atslēgvārdi: Markova process, slēptais Markova modelis (SMM), Forward, Backward, Vi…
Asymmetric Comparison and Querying of Biological Networks
2011
Comparing and querying the protein-protein interaction (PPI) networks of different organisms is important to infer knowledge about conservation across species. Known methods that perform these tasks operate symmetrically, i.e., they do not assign a distinct role to the input PPI networks. However, in most cases, the input networks are indeed distinguishable on the basis of how the corresponding organism is biologically well characterized. In this paper a new idea is developed, that is, to exploit differences in the characterization of organisms at hand in order to devise methods for comparing their PPI networks. We use the PPI network (called Master) of the best characterized organism as a …