Wai Hong Chan

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We present a linear time and space suffix array (SA) construction algorithm called the SA-IS algorithm.The SA-IS algorithm is novel because of the LMS-substrings used for the problem reduction and the pure induced-sorting (specially coined for this algorithm)used to propagate the order of suffixes as well as that of LMS-substrings, which makes the algorithm(More)
We present in this paper two efficient algorithms for linear time suffix array construction. These two algorithms archive their linear time complexities using the techniques of divide-and-conquer and recursion. What distinguish the proposed algorithms from other linear time suffix array construction algorithms (SACAs) are the variable-length leftmost S-type(More)
BACKGROUND Information about diagnostic features of tuberculosis (TB) peritonitis among patients with end-stage renal failure (ESRF), compared with those without ESRF, is limited. Here, we review our experience with TB peritonitis in patients with and without ESRF over a period of 11 years, with special reference to the clinical features of and diagnostic(More)
Recently, Choi et al. proposed an assumption on Mayers-Lo-Chau (MLC) no-go theorem that 8 the state of the entire quantum system is invariable to both participants before the unveiling phase. 9 This means that the theorem is only applicable to static quantum bit commitment (QBC). This 10 paper find that the assumption is unnecessary and the MLC no-go(More)
Semiquantum key distribution allows a quantum party to share a random key with a "classical" party who only can prepare and measure qubits in the computational basis or reorder some qubits when he has access to a quantum channel. In this work, we present a protocol where a secret key can be established between a quantum user and an almost classical user who(More)
OBJECTIVES To evaluate surgical experience among current doctors appointed into ophthalmology training posts since the introduction of the Modernising Medical Careers programme. Additionally, to identify regional variations in surgical experience and training programme delivery. DESIGN A cross-sectional survey. SETTING The UK's four largest deaneries(More)