Publications

Al-Ani, A & Deriche, M 2002, 'A new technique for combining multiple classifiers using the Dempster-Shafer theory of evidence', Journal of Artificial Intelligence Research, vol. 17, pp. 333-361.
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This paper presents a new classifier combination technique based on the Dempster-Shafer theory of evidence. The Dempster-Shafer theory of evidence is a powerful method for combining measures of evidence from different classifiers. However, since each of the available methods that estimates the evidence of classifiers has its own limitations, we propose here a new implementation which adapts to training data so that the overall mean square error is minimized. The proposed technique is shown to outperform most available classifier combination methods when tested on three different classification problems.

Bell, J, Tipper, JL, Ingham, E, Stone, MH, Wroblewski, BM & Fisher, J 2002, 'Quantitative analysis of UHMWPE wear debris isolated from the periprosthetic femoral tissues from a series of Charnley total hip arthroplasties', BIO-MEDICAL MATERIALS AND ENGINEERING, vol. 12, no. 2, pp. 189-201.

Buist, M, Moore, G, Bernard, S, Waxman, B, Nguyen, T & Anderson, J 2002, 'Medical emergency teams and cardiac arrests in hospital - Reply', BRITISH MEDICAL JOURNAL, vol. 324, no. 7347, pp. 1216-1216.

Buist, MD, Moore, GE, Bernard, SA, Waxman, BP, Anderson, JN & Nguyen, TV 2002, 'Effects of a medical emergency team on reduction of incidence of and mortality from unexpected cardiac arrests in hospital: preliminary study', BRITISH MEDICAL JOURNAL, vol. 324, no. 7334, pp. 387-390.
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Fisher, J, Hu, XQ, Tipper, JL, Stewart, TD, Williams, S, Stone, MH, Davies, C, Hatto, P, Bolton, J, Riley, M, Hardaker, C, Isaac, GH, Berry, G & Ingham, E 2002, 'An in vitro study of the reduction in wear of metal-on-metal hip prostheses using surface-engineered femoral heads', PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, vol. 216, no. H4, pp. 219-230.
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Hutvágner, G & Zamore, PD 2002, 'RNA interference: Horrified nature of double strands', Biofutur, no. 228, pp. 52-57.

Hutvagner, GJ & Zamore, P 2002, 'A microRNA in a multiple-turnover RNAi enzyme complex', Science, vol. 297, no. 5589, pp. 2056-2060.
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In animals, the double-stranded RNA-specific endonuclease Dicer produces two classes of functionally distinct, tiny RNAs: microRNAs ( miRNAs) and small interfering RNAs (siRNAs). miRNAs regulate mRNA translation, whereas siRNAs direct RNA destruction via

Hutvagner, GJ & Zamore, P 2002, 'RNA interference: Nature hates double strands', Biofutur, vol. 228, no. 1, pp. 52-57.

Hutvagner, GJ & Zamore, P 2002, 'RNAi: nature abhors a double-strand', Current Opinion In Genetics & Development, vol. 12, no. 2, pp. 225-232.
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In organisms as diverse as nematodes, trypanosomes, plants, and fungi, double-stranded RNA triggers the destruction of homologous mRNAs, a phenomenon known as RNA interference. RNA interference begins with the transformation of the double-stranded RNA in

Ingram, J, Matthews, JB, Tipper, J, Stone, M, Fisher, J & Ingham, E 2002, 'Comparison of the biological activity of grade GUR 1120 and GUR 415HP UHMWPE wear debris', BIO-MEDICAL MATERIALS AND ENGINEERING, vol. 12, no. 2, pp. 177-188.

Molloy, D, Kaloo, PD, Cooper, M & Nguyen, TV 2002, 'Laparoscopic entry: a literature review and analysis of techniques and complications of primary port entry', AUSTRALIAN & NEW ZEALAND JOURNAL OF OBSTETRICS & GYNAECOLOGY, vol. 42, no. 3, pp. 246-254.
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Mote, P, Bartow, S, Tran, NT & Clarke, C 2002, 'Loss of co-ordinate expression of progesterone receptors A and B is an early event in breast carcinogenesis', Breast Cancer Research And Treatment, vol. 72, no. 2, pp. 163-172.
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Progesterone receptor (PR) mediates the effects of progesterone in mammary tissues and plays a crucial role in normal breast development and in breast cancer. PR proteins are expressed as two isoforms, PRA and PRB, that have different capacities to activ

Naganathan, V, MacGregor, A, Snieder, H, Nguyen, T, Spector, T & Sambrook, P 2002, 'Gender differences in the genetic factors responsible for variation in bone density and ultrasound', JOURNAL OF BONE AND MINERAL RESEARCH, vol. 17, no. 4, pp. 725-733.
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Nguyen, TV & Trinh, GN 2002, 'Clinical evaluation of once-weekly and three-times-weekly dosings of epoetin alfa in chemotherapy patients: Problems of study design and interpretation', JOURNAL OF CLINICAL ONCOLOGY, vol. 20, no. 3, pp. 878-878.
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Qin, CH, Nguyen, T, Stewart, J, Samudio, I, Burghardt, R & Safe, S 2002, 'Estrogen up-regulation of p53 gene expression in MCF-7 breast cancer cells is mediated, by calmodulin kinase IV-dependent activation of a nuclear factor kappa B/CCAAT-binding transcription factor-1 complex', MOLECULAR ENDOCRINOLOGY, vol. 16, no. 8, pp. 1793-1809.
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Schwarz, D, Hutvagner, GJ, Haley, B & Zamore, P 2002, 'Evidence that siRNAs function as guides, not primers, in the Drosophila and human RNAi pathways', Molecular Cell, vol. 10, no. 3, pp. 537-548.
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In Drosophila, two features of small interfering RNA (siRNA) structure-5' phosphates and 3' hydroxyls are reported to be essential for RNA interference (RNAi). Here, we show that as in Drosophila, a 5' phosphate is required for siRNA function in human He

Smith, GB, Nolan, J, King, A, Pockney, P, Nielsen, M, Coombes, M, Bailey, I, Clancy, M, Buist, M, Moore, G, Bernard, S, Waxman, B, Nguyen, T & Anderson, J 2002, 'Medical emergency teams and cardiac arrests in hospital [3] (multiple letters)', British Medical Journal, vol. 324, no. 7347, pp. 1215-1216.

Smith, GB, Nolan, J, King, A, Pockney, P, Nielsen, M, Coombes, M, Bailey, I, Clancy, M, Moore, G, Bernard, S, Waxman, B, Nguyen, T, Anderson, J & Buist, M 2002, 'Medical emergency teams and cardiac arrests in hospital', BMJ, vol. 324, no. 7347, p. 1215.
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Su, SW, Anderson, B & brinsmead, TS 2002, 'Use of integrator in nonlinear H infinity design for disturbance rejection', Automatica, vol. 38, no. 11, pp. 1951-1957.
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The disturbance suppression problem for nonlinear systems is examined in this paper. We review the so-called nonstandard mixed sensitivity problem, which introduces an integrator to a selected weight, as well as the linear classical disturbance suppression problem and the linear H? disturbance suppression problem. We extend this H? problem to the nonlinear case, and present a method to reduce the order of the state feedback HamiltonJacobi (HJ) partial differential equation for this nonlinear H? problem by extending the concept of comprehensive stability (Proceedings of the 36th Conference on Decision and Control, 1997, p. 4653; IEEE Trans. Ind. Electron. (1998) 488). Finally, we investigate the structure of the output feedback H? controller for disturbance suppression, and draw the conclusion that, as in the linear case, there must also be an integrator in the controller.

Tipper, JL, Hatton, A, Nevelos, JE, Ingham, E, Doyle, C, Streicher, R, Nevelos, AB & Fisher, J 2002, 'Alumina-alumina artificial hip joints. Part II: Characterisation of the wear debris from in vitro hip joint simulations', BIOMATERIALS, vol. 23, no. 16, pp. 3441-3448.
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Torjek, O, Kiss, E, Mazik-tokei, K, Hutvagner, GJ, Silhavy, D, Banfalvi, Z, Kertesz, Z, Pauk, J & Heszky, L 2002, 'Molecular homogeneity of conventional and doubled haploid wheat cultivars and their DH lines', Novenytermeles, vol. 51, no. 1, pp. 7-20.
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A traditional cultivar (GK Gobe), a cultivar of doubled haploid (DH) origin (GK Delibab), various DH lines of GK Gobe (first cycle DH lines) and DH lines of GK Delibab (second cycle DH lines) were compared with PCR-based molecular techniques. High molecu

Weily, AR & Sanagavarapu, AM 2002, 'Rotationally symmetric FDTD for wideband performance prediction of TM01 DR filters', International Journal of RF and Microwave CAE, vol. 12, no. 3, pp. 259-271.
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The generalized perfectly matched layer (GPML) coupled with rotationally symmetric (RS)-FDTD method has been utilized to extract the S-parameters for several probe-coupled TM01 dielectric resonator (DR) filters to directly obtain the theoretical wide-band spurious performance. The computationally efficient (RS)-FDTD method has also been used to obtain accurate filter parameters for TE01 and TM01 dielectric resonators loaded in cylindrical cavities. The RS-FDTD method combined with digital filtering and the Matrix Pencil technique are used to analyze the resonant frequencies, inter-resonator coupling, and external Q values. When perturbation theory is used with RS-FDTD, accurate values of unloaded Q are obtained. (C) 2002 Wiley Periodicals, Inc.

White, SA, Nguyen, T & Fernald, RD 2002, 'Social regulation of gonadotropin-releasing hormone', JOURNAL OF EXPERIMENTAL BIOLOGY, vol. 205, no. 17, pp. 2567-2581.

Al-Ani, A & Deriche, M 2002, 'A new algorithm for multi-channel EEG signal analysis using mutual information', ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, pp. 2961-2964.
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Electroencephalogram (EEG) signals have long been used for the analysis of brain activities and for the detection of abnormalities (such as seizures). More recently, and with advance of computer technology, we have seen new applications using EEG signals in the control of PC keyboards through BCIs (Brain Computer Interfaces). These EEG signals are normally collected through multi-sensors (8, 12 or channels). For proper interpretation of such data, several techniques have been proposed to extract features from the collected multi-channel data, then analyse them, or classify them into patterns. However, most existing techniques do not take into consideration the inherent relationship among features across channels. Here, we propose a scheme based on a hybrid information maximization concept (HIM) to process multi-channel data for optimal feature extraction. The experiments carried show a clear advantage of the approach over principal component and canonical correlation analysis.

Al-Ani, A & Deriche, M 2002, 'Feature selection using a mutual information based measure', Proceedings - International Conference on Pattern Recognition, pp. 82-85.
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In this paper, we discuss the problem of feature selection for the purpose of classification and propose a solution based on the concept of mutual information. In addition, we propose a new evaluation function to measure the ability of feature subsets in distinguishing between class labels. The proposed function is based on the information gain and takes into consideration how features work together. Finally, we discuss the performance of this function compared to that of other measures which evaluate features individually. © 2002 IEEE.

Center, JR, Nguyen, TV & Eisman, JA 2002, 'Volumetric femoral neck bone density as a single measure of hip fracture risk in men and women.', JOURNAL OF BONE AND MINERAL RESEARCH, 24th Annual Meeting of the American-Society-for-Bone-and-Mineral-Research, AMER SOC BONE & MINERAL RES, SAN ANTONIO, TEXAS, pp. S146-S146.

Chang, KP, Center, JR, Nguyen, TV & Eisman, JA 2002, 'Long-term prediction of fracture incidence in elderly men and women', JOURNAL OF BONE AND MINERAL RESEARCH, 24th Annual Meeting of the American-Society-for-Bone-and-Mineral-Research, AMER SOC BONE & MINERAL RES, SAN ANTONIO, TEXAS, pp. S355-S355.

Chiu, H & Sanagavarapu, AM 2001, 'Computer aided design of miniaturised antennas for microwave cardiac ablation', Proceedings of 2001 Asia-Pacific Microwave Conference (APMC'01), Asia-Pacific Microwave Conference, Inst Elect & Electronic Engineers, Taipei, Taiwan, pp. 1299-1302.

Chiu, H, Duncan, G, Sanagavarapu, AM & Ross, DL 2002, 'Computer Simulation and Design of Miniaturised Antenna for Microwave Cardiac Ablation', Engineering Science and Physics in Medicine, EPSM 2002, Australasian Engineering & Physical Science in Medicine, Rotorua, New Zealand, pp. 130-130.

Chiu, H, Sanagavarapu, AM, Duncan, G & Ross, DL 2002, 'Novel Parallel Loop Antenna for Circumferential Microwave Ablation of the Pulmonary Veins', Proceedings of the 2002 Interim International Symposium on Antennas and Propagation, 2002 Interim International Symposium on Antennas & Propagation, IEICE (Japan), Yokosuka, Japan, pp. 331-334.
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Chung, K & Sanagavarapu, AM 2002, 'Gain and Bandwidth Enhancement of a 2.4GHz Singly-Fed Cross-Aperture Coupled Patch Antenna', Proceedings of IEEE 2002 International Symposium on Antennas and Propagation, IEEE International Symposium on Antennas & Propagation, IEEE, San Antonio, USA, pp. 410-413.
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Chung, K & Sanagavarapu, AM 2002, 'Singly-Fed Circularly Polarised Patch Antenna with Wide Impedance and Axial-Ratio Bandwidth', Proceedings of the 2002 Interim International Symposium on Antennas and Propagation, 2002 Interim International Symposium on Antennas & Propagation, IEICE (Japan), Yokosuka, Japan, pp. 275-278.
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Endo, M, Tipper, JL, Barton, DC, Stone, MH, Ingham, E & Fisher, J 2002, 'Comparison of wear, wear debris and functional biological activity of moderately crosslinked and non-crosslinked polyethylenes in hip prostheses', PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, PROFESSIONAL ENGINEERING PUBLISHING LTD, pp. 111-122.
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Jin, ZM, Medley, JB, Dowson, D, Hooke, CJ, Smith, SL, Booker, JF, Ikeuchi, K, Morita, Y, Nakat, K, Kim, YH, Sekino, T, Niihara, K, Spencer, N, Paré, P, Sawae, Y, Murakami, T, Sawano, T, Noda, I, Shimotoso, T, Chan, FW, Young, S, Stewart, TD, Williams, S, Tipper, JL, Ingham, E, Stone, MH & Fisher, J 2002, 'Session VII bio-tribology (1) - Hip and knee joints', Tribology Series, pp. 874-879.

Lam, HK, Leung, KF, Ling, SH, Leung, FHF & Tam, PKS 2002, 'On interpretation of graffiti digits and commands for eBooks: Neural fuzzy network and genetic algorithm approach', PROCEEDINGS OF THE 2002 IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS, VOL 1 & 2, IEEE International Conference on Fuzzy Systems, IEEE, HONOLULU, HI, pp. 443-448.

Lam, HK, Ling, SH, Leung, FHF, Tam, PKS & Lee, YS 2002, 'Gain estimation for an AC power line data network transmitter using a self-structured neural network and genetic algorithm', IECON-2002: PROCEEDINGS OF THE 2002 28TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-4, 28th Annual Conference of the IEEE Industrial-Electronics-Society, IEEE, SEVILLE, SPAIN, pp. 1926-1929.

Lam, HK, Ling, SH, Leung, FHF, Tam, PKS & Lee, YS 2002, 'Playing Tic-tac-toe using a modified neural network and an improved genetic algorithm', IECON-2002: PROCEEDINGS OF THE 2002 28TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-4, 28th Annual Conference of the IEEE Industrial-Electronics-Society, IEEE, SEVILLE, SPAIN, pp. 1984-1989.

Ling, SH, Lam, HK, Leung, FHF & Tam, PKS 2002, 'A novel GA-based neural network for short-term load forecasting', PROCEEDING OF THE 2002 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS, VOLS 1-3, International Joint Conference on Neural Networks (IJCNN 02), IEEE, HONOLULU, HI, pp. 2761-2766.
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Ling, SH, Lam, HK, Leung, FHF & Tam, PKS 2002, 'Learning of neural network parameters using a fuzzy genetic algorithm', CEC'02: PROCEEDINGS OF THE 2002 CONGRESS ON EVOLUTIONARY COMPUTATION, VOLS 1 AND 2, IEEE World Congress on Computational Intelligence (WCCI2002), IEEE, HONOLULU, HI, pp. 1928-1933.

Ling, SH, Leung, FHF, Lam, HK & Tam, PKS 2002, 'Short-term daily load forecasting in an intelligent home with GA-based neural network', PROCEEDING OF THE 2002 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS, VOLS 1-3, International Joint Conference on Neural Networks (IJCNN 02), IEEE, HONOLULU, HI, pp. 997-1001.
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Nguyen, TV, Center, JR & Eisman, JA 2002, 'Femoral neck bone loss predicts risk of hip fracture in elderly women.', JOURNAL OF BONE AND MINERAL RESEARCH, 24th Annual Meeting of the American-Society-for-Bone-and-Mineral-Research, AMER SOC BONE & MINERAL RES, SAN ANTONIO, TEXAS, pp. S150-S150.

Nguyen, TV, Center, JR & Eisman, JA 2002, 'Long-term bone loss in elderly women: A 10-year epidemiological study.', JOURNAL OF BONE AND MINERAL RESEARCH, 24th Annual Meeting of the American-Society-for-Bone-and-Mineral-Research, AMER SOC BONE & MINERAL RES, SAN ANTONIO, TEXAS, pp. S220-S220.

Sanagavarapu, AM & Chiu, H 2002, 'Design of an Expanded Tip Wire Antenna for Microwave Cardiac Ablation', 2002 Asia-Pacific Microwave Conference Proceedings, Vol. 2, Asia-Pacific Microwave Conference, IEICE (Japan) & IEEE, Kyoto, Japan, pp. 885-888.

Su, SW, Anderson, B & brinsmead, TS 2002, 'Robust disturbancesuppression for nonlinear systems based on multiple model adaptive control', the 41st IEEE Conference on Decision and Control, IEEE, Las Vegas, USA, pp. 3047-3048.