Malgorzata Plechawska-Wójcik

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This article presents the method of the processing of mass spectrometry data. Mass spectra are modelled with Gaussian Mixture Models. Every peak of the spectrum is represented by a single Gaussian. Its parameters describe the location, height and width of the corresponding peak of the spectrum. An authorial version of the Expectation Maximisation Algorithm(More)
The paper presents a case study of GUI quality testing. The case study was performed on appropriately selected online shopping portals. The aim of the study was to assess the user experience and to collate it with expert opinion. The testing procedure was based on the expert method and cognitive walkthrough. It was adjusted to the nature of web portals. The(More)