Artur Cook

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This paper presents an experimental evaluation of two such extensions: hidden semi-Markov models (HSMMs), and expanded state HMMs (ESHMMs). These extensions to the standard HMM (hiden Markov model) formalism permit improved duration modelling and experimental results are presented which show that they can consistently lead to improved performance. The(More)
BACKGROUND Psoriatic plaques can be cleared by destruction of the dermal papillae. Dilated vessels, the major component of psoriatic dermal papillae, can be selectively destroyed with yellow light lasers. Previous investigators have demonstrated partial clearing of psoriatic plaques after treatment with a pulsed dye laser (PDL) (585 nm). OBJECTIVE This(More)
The aim of this study was to co-evaluate c-erb B-2 and p53 protein expression in breast cancer fine needle aspirates (FNA) and to compare this with histological variables and the immunohistochemical phenotype of the tumours. Furthermore, we assessed the relationship of c-erb B-2 and p53 immunocytochemical expression to tumour prognostic factors. We examined(More)
— This article examines whether purely decentralized controllers can be designed to stabilize networks of double-integrator agents with general observation topologies and identical non-minimum-phase internal dynamics. A new control architecture is proposed, that permits stabilization of such non-minimum-phase double-integrator networks. This design provides(More)
A total of 1000 patients with a palpable localized breast mass were assessed clinically at a surgical breast outpatient clinic and fine needle aspiration cytology was performed and immediately reported. This large series was undertaken by one surgeon and one pathologist, neither of whom had any previous experience with such a combined clinic, and the(More)
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