Sofia Orlova

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Trees like binary-space-partitioning trees, kd-trees, principal axis trees and random projection trees are used to answer the question ”which tree to use for nearest-neighbor search?.” This paper deals with the influence of the vector quantization performance of the trees on the search performance and the margins of the partitions in these trees.(More)
Biosynthesis of pyrimidine nucleotides was intensified in proliferating tissues. Age-dependent alterations in activities of thymidine kinase and thymidine phosphorylase were found in healthy persons of 17-70 years old. Distinct increase in activity of thymidine kinase was observed in patients with gastric ulcer but the activity was decreased with ageing.(More)
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