Richard P. Lewis

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An identity of F.H. Jackson is used to derive new partition generating functions and related identities. §1 Introduction In the study of the theory of partitions, we often consider infinite product generating functions. This is perhaps epitomised in the study of partition ideals of order 1 (cf. [2, pp.124-128]). In every previous instance, the factors in(More)
This paper reports some experiments concerned with footsteps as a biometric. We present a comparison between different feature extraction techniques as well as classification methods, obtaining the best results with holistic feature extraction and a support vector machine (SVM) classi-fier. Results are reported in terms of detection error trade-off (DET)(More)
The BioSecure Network of Excellence 1 has collected a large multi-biometric publicly available database and organized the BioSecure Multimodal Evaluation Campaigns (BMEC) in 2007 2. This paper reports on the Talking Faces campaign. Open source reference systems were made available to participants and four laboratories submitted executable code to the(More)
This study evaluated the sex differences in maximum 3-dimensional opening and closing movements. The sample included 29 men (ages, 23-39 years) and 27 women (ages, 23-35 years), who were selected for normal Class I occlusion, temporomandibular function, and skeletal patterns. Condylar (hinge axis) translation and mandibular incisor movements, were recorded(More)
This paper is devoted to the study of a new class of partitions , partitions with designated summands. In such partitions, among those parts of the same magnitude one is tagged or designated. The resulting partition functions are related to several classical ordinary partition functions. Also they have many interesting divisibility properties and satisfy(More)
—This paper describes a semi-automatic system to capture and label a reasonable size biometric database. In our case, the biometric to be assessed are footstep signals, but the system could be extendable to other biometrics. Extra biometric data such as the voice and video recordings of the face and the gait are used to assist the database labelling to(More)
In this article we present ultra-sensitive, silicon nanowire (SiNW)-based biosensor devices for the detection of disease biomarkers. An electrochemically induced functionalisation method has been employed to graft antibodies targeted against the prostate cancer risk biomarker 8-hydroxydeoxyguanosine (8-OHdG) to SiNW surfaces. The antibody-functionalised(More)