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David Ndzi

Dr

19992019
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Research Output 1999 2019

2019

Speaker recognition using PCA-based feature transformation

Ahmed, A. I., Chiverton, J. P., Ndzi, D. L. & Becerra, V. M., 2 Apr 2019, In : Speech Communication. 110, p. 33-46 14 p.

Research output: Contribution to journalArticle

Speaker Recognition
performance
Recurrent neural networks
Filter banks
evaluation
2018

Adjustment of tele-operator learning when provided with different levels of sensor support while driving mobile robots

Sanders, D., Ndzi, D., Chester, S. & Malik, M., 2018, Proceedings of SAI Intelligent Systems Conference (IntelliSys) 2016. Springer International Publishing AG, p. 548-558 (Lecture Notes in Networks and Systems).

Research output: Chapter in Book/Report/Conference proceedingChapter

Mobile robots
Sensors
Feedback

Integration of Fuzzy C-Means and artificial neural network for short-term localized rainfall forecast in tropical climate

Mohd-Safar, N. Z., Ndzi, D., Sanders, D., Mohamed Noor, H. & Kamarudin, L. M., 2018, Proceedings of SAI Intelligent Systems Conference (IntelliSys) 2016. Springer International Publishing AG, p. 499-516 (Lecture Notes in Networks and Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

artificial neural network
rainfall
dew point
forecast
tropical climate
1 Downloads (Pure)

Ontology-based personalised course recommendation framework

Ibrahim, M. E., Yang, Y., Ndzi, D., Yang, G. & Almaliki, M., 24 Dec 2018, In : IEEE Access. 7, p. 5180-5199 20 p.

Research output: Contribution to journalArticle

Open Access
File
Ontology
Students
Recommender systems
Education
2017

Appearance and motion information based human activity recognition

Al-Faris, M., Chiverton, J., Yang, L. & Ndzi, D., 4 Dec 2017, IET 3rd International Conference on ​​Intelligent Signal Processing (ISP 2017). London: IET, 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Intelligent buildings
Optical flows

A robust multimedia surveillance system for people counting

Al-Zaydi, Z. Q. H., Ndzi, D., Kamarudin, M. L., Zakaria, A. & Shakaff, A. Y. M., 1 Nov 2017, In : Multimedia Tools and Applications. 76, 22, p. 1 28 p.

Research output: Contribution to journalArticle

Shopping centers
Pixels
Edge detection
Video cameras
Fusion reactions

Channel variability synthesis in i-vector speaker recognition

Ahmed, A. I., Chiverton, J., Ndzi, D. & Becerra, V., 4 Dec 2017, ​IET 3rd International Conference on ​​Intelligent Signal Processing (ISP 2017). IET, p. 1-6 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Speech analysis

Rule-based system to assist a tele-operator with driving a mobile robot

Sanders, D., Sanders, H., Gegov, A. & Ndzi, D., 23 Aug 2017, Proceedings of SAI Intelligent Systems Conference (IntelliSys) 2016. Bi, Y., Kapoor, S. & Bhatia, R. (eds.). London: Springer, Vol. Lecture Notes in Networks and Systems. p. 599-615 (Lecture Notes in Networks and Systems ).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
Knowledge based systems
Mobile robots
Collision avoidance
Robots
Sensors

Short-term localized weather forecasting by using different artificial neural network algorithm in tropical climate

Mohd-Safar, N. Z., Ndzi, D. L., Kagalidis, I., Yang, Y. & Zakaria, A., 23 Aug 2017, Proceedings of SAI Intelligent Systems Conference (IntelliSys) 2016. Bi, Y., Kapoor, S. & Bhatia, R. (eds.). Springer International Publishing AG, p. 463-476 (Lecture Notes in Networks and Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

weather forecasting
artificial neural network
atmospheric pressure
humidity
dew point
16 Downloads (Pure)

Using ontology for personalised course recommendation applications

Ibrahim, M. E., Yang, Y. & Ndzi, D., 6 Jul 2017, Computational Science and Its Applications – ICCSA 2017: 17th International Conference, Trieste, Italy, July 3-6, 2017, Proceedings, Part I. Springer International Publishing AG, p. 426-438 (Lecture Notes in Computer Science; vol. 10404).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
Ontology
Students
Semantics
Refining
Websites
2016

An adaptive people counting system with dynamic features selection and occlusion handling

Al-Zaydi, Z. Q. H., Ndzi, D., Yang, Y. & Kamarudin, M. L., 1 Aug 2016, In : Journal of Visual Communication and Image Representation. 39, p. 218-225

Research output: Contribution to journalArticle

Open Access
File
Feature extraction
Shopping centers

Cascade method for image processing based people detection and counting

Al-Zaydi, Z., Ndzi, D. L. & Sanders, D. A., 1 Mar 2016, Int’l Conference Proceedings of International Conference on Image Processing, Production and Computer Science (ICIPCS'2016): March 26-27, 2016 London (UK). Ahamed, O. M. M. & Saxena, A. (eds.). Universal Researchers in Civil and Architecture Engineering, p. 30-36 7 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Open Access
File
Image processing
Detectors
Fusion reactions
Pipelines

Sensitivity analysis of AODV protocol regarding forwarding probability

Kanakaris, V., Ndzi, D. L. & Papakostas, G. A., 1 Feb 2016, In : Optik - International Journal for Light and Electron Optics. 127, 3, p. 1016-1021 6 p.

Research output: Contribution to journalArticle

sensitivity analysis
Sensitivity analysis
Network protocols
messages
evaluation

Simulation and analysis of LEACH for wireless sensor networks in agriculture

Kamarudin, L. M., Ahmad, R. B., Ndzi, D. L., Zakaria, A., Kamarudin, K. & Ahmed, M. E. E. S., 31 May 2016, In : International Journal of Sensor Networks. 21, 1, p. 16-26 11 p.

Research output: Contribution to journalArticle

Agriculture
Wireless sensor networks
Network protocols
Radio transmission
Time division multiple access

Tele-operator performance and their perception of system time lags when completing mobile robot tasks

Sanders, D. A., Langner, M., Gegov, A. E., Ndzi, D. L., Sanders, H. & Tewkesbury, G. E., 4 Aug 2016, 9th International Conference on Human System Interactions (HSI), 2016 . IEEE, p. 236-242 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mobile robots
Parallel processing systems
Robots
Communication
2015

Changes to user learning behaviour of powered wheelchair drivers depending on the level of sensor support

Sanders, D. A., Bausch, N. C. & Ndzi, D. L., 1 Jul 2015, Hims 2015: Proceedings of the 2015 International Conference Health Informatics and Medical Systems . Arabnia, H. R. & Deligiannidis, L. (eds.). CSREA Press, p. 62-65 4 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Intelligent project management and automation systems

Ling, B., Yang, Y., Ndzi, D. L. & Gao, M., 24 May 2015, ICAS 2015, The Eleventh International Conference on Autonomic and Autonomous Systems. Lorenz, P. & Rückemann, C-P. (eds.). International Academy, Research, and Industry Association, p. 7-14 8 p. (ICAS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
Project management
Automation
Planning
Industry
Piles

Stingless bee colony health sensing through integrated wireless system

Harun, A., Zaaba, S. K., Kamarudin, L. M., Zakaria, A., Farook, R. S. M., Ndzi, D. L. & Shakaff, A. Y., 1 Sep 2015, In : Jurnal Teknologi. 77, 28, p. 85-90 6 p.

Research output: Contribution to journalArticle

Open Access
Health
Base stations
Farms
Sensors
Monitoring

The study of vegetation effect on wireless streaming video for agricultural monitoring

Ramli, M. F., Kamarudin, L. M., Ndzi, D. L., Harun, A., Turner, J. S. C., Hassan, N., Shakaff, A. Y. M., Jaafar, M. N. & Zakaria, A., 1 Aug 2015, In : Jurnal Teknologi. 76, 12, p. 53-58 6 p.

Research output: Contribution to journalArticle

Open Access
Video streaming
Monitoring
Packet loss
Wireless networks
Throughput
2014

Classification of domestic burning smell using covariance k- nearest neighbour algorithm for early fire detection application

Andrew, A. M., Kamarudin, K., Mamduh, S. M., Shakaff, A. Y. M., Zakaria, A., Adom, A. H., Ndzi, D. L. & Ragunathan, S., 1 Jan 2014, In : Chemical Engineering Transactions. 40, p. 271-276 6 p.

Research output: Contribution to journalArticle

Open Access
Fires
Smoke
Odors
Humidity sensors
Hotels

Distributed surveillance system for business economic and information management

Shbib, R., Zhou, S., Ndzi, D. L., Alkadhimi, K. I. H. & Al-Mosawi, M., 2014, Pervasive computing and the networked world: Joint International Conference, ICPCA/SWS 2013, Vina del Mar, Chile, December 5-7, 2013. Revised Selected Papers. Zu, Q., Vargas-Vera, M. & Hu, B. (eds.). Springer, p. 508-519 12 p. (Lecture Notes in Computer Science; vol. 8351).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Information management
Economics
Industry
Image processing
Servers

Probabilistic neural network based olfactory classification for household burning in early fire detection application

Andrew, A. M., Kamarudin, K., Mamduh, S. M., Shakaff, A. Y. M., Zakaria, A., Adom, A. H., Ndzi, D. L. & Ragunathan, S., 10 Feb 2014, IEEE Conference on Open Systems (ICOS 2013), 2013 . IEEE, p. 221-225 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fires
Neural networks
Humidity sensors
Odors
Temperature sensors

Wireless sensor network coverage measurement and planning in mixed crop farming

Ndzi, D. L., Harun, A., Ramli, F. M., Kamarudin, M. L., Zakaria, A., Shakaff, A. Y. M., Jaafar, M. N., Zhou, S. & Farook, R. S., 1 Jul 2014, In : Computers and Electronics in Agriculture. 105, p. 83-94 12 p.

Research output: Contribution to journalArticle

application coverage
Crops
Wireless sensor networks
farming systems
planning
2013

Antenna positioning impact on wireless sensor networks deployment in agriculture

Harun, A., Ramli, M., Ndzi, D., Kamarudin, L., Shakaff, A., Jaafar, M. & Zakaria, A., 2013, In : Australian Journal of Basic and Applied Sciences. 7, 5, p. 55-60 6 p.

Research output: Contribution to journalArticle

Open Access
Agriculture
Wireless sensor networks
Antennas
Transmitters

Distributed monitoring system based on weighted data fusing model

Shbib, R., Zhou, S., Ndzi, D. L. & Alkadhimi, K. I. H., 1 Mar 2013, In : American Journal of Social Issues and Humanities. 3, 2, p. 53-62 10 p.

Research output: Contribution to journalArticle

Open Access
Data fusion
Infrared radiation
Monitoring
Sensors
2012

Analysis of successes and failures with a tele-operated mobile robot in various modes of operation

Sanders, D., Stott, I., Robinson, D. & Ndzi, D., 1 Oct 2012, In : Robotica. 30, 6, p. 973-988 16 p.

Research output: Contribution to journalArticle

Modes of Operation
Mobile Robot
Mobile robots
Robot
Robots

A new RREQ message forwarding technique based on Bayesian probability theory

Kanakaris, V., Ndzi, D., Ovaliadis, K. & Yang, L., 23 Oct 2012, In : EURASIP Journal on Wireless Communications and Networking. 2012, 318

Research output: Contribution to journalArticle

Open Access
Routing protocols
Network protocols

A proactive personalised mobile recommendation system using analytic hierarchy process and Bayesian network

Yeung, K. F., Yang, Y. & Ndzi, D., 1 Sep 2012, In : Journal of Internet Services and Applications. 3, 2, p. 195-214 20 p.

Research output: Contribution to journalArticle

Open Access
Analytic hierarchy process
Recommender systems
Bayesian networks
Mobile devices
Information services

Comparative performance analysis of wireless RSSI in wireless sensor networks motes in tropical mixed-crop precision farm

Harun, A., Ramli, M., Kamarudin, L., Ndzi, D., Shakaff, A., Zakaria, A. & Jaafar, M., 15 Mar 2012, Third International Conference on Intelligent Systems, Modelling and Simulation (ISMS), 2012 . IEEE, p. 606-610 5 p. (International Conference on Intelligent Systems, Modelling and Simulation (ISMS)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Farms
Crops
Wireless sensor networks
Antennas
Microstrip antennas

Detecting risk of failure in a powered wheelchair sensor system using artificial neural networks

Sanders, D. & Ndzi, D., 2012, In : Journal of Intelligent Mobility. 15, 1, p. 272-273 2 p.

Research output: Contribution to journalArticle

Open Access
File

Improving automatic robotic welding in shipbuilding through the introduction of a corner-finding algorithm to help recognise shipbuilding parts

Sanders, D., Tewkesbury, G., Ndzi, D., Gegov, A., Gremont, B. & Little, A., 1 Jun 2012, In : Journal of Marine Science and Technology. 17, 2, p. 231-238 8 p.

Research output: Contribution to journalArticle

shipbuilding
Shipbuilding
welding
robotics
Welding

Signal propagation analysis for low data rate wireless sensor network applications in sport grounds and on roads

Ndzi, D., Arif, M., Shakaff, A., Ahmad, M., Harun, A., Kamarudin, L., Zakaria, A., Ramli, M. & Razalli, M., 2012, In : Progress in Electromagnetics Research. 125, p. 1-19 19 p.

Research output: Contribution to journalArticle

Open Access
Sports
roads
Wireless sensor networks
grasses
propagation

Signal propagation in aquaculture environment for wireless sensor network applications

Harun, A., Ndzi, D., Ramli, M., Shakaff, A., Ahmad, M. N., Kamarudin, L. M. & Yang, Y., 1 Sep 2012, In : Progress in Electromagnetics Research. 131, p. 477-494 18 p.

Research output: Contribution to journalArticle

Open Access
Aquaculture
Wireless sensor networks
propagation
sensors
Antennas
2011

An FPGA-based adaptable 200 MHz bandwidth channel sounder for wireless communication channel characterisation

Ndzi, D., Stuart, K., Toautachone, S., Yang, Y. & Dunn, V., 2011, In : International Journal of Reconfigurable Computing. 2011, 14 p., 894530.

Research output: Contribution to journalArticle

Open Access
Field programmable gate arrays (FPGA)
Acoustic waves
Bandwidth
Sampling
Electric power utilization

Applications of MANET routing protocols in sensor network

Kanakaris, V., Ndzi, D. & Ovaliadis, K., 1 Dec 2011, In : International Journal of Research and Reviews in Ad Hoc Networks. 1, 4, p. 88-92 5 p.

Research output: Contribution to journalArticle

Characterization of rain fields for UK satellite networks

Yang, G., Gremont, B., Ndzi, D. & Brown, D. J., 1 Oct 2011.

Research output: Contribution to conferencePaper

Wideband sounder for dynamic and static wireless characterisation: urban picocell channel model

Ndzi, D., Stuart, K., Toautachone, S., Vuksanovic, B. & Sanders, D., 1 Feb 2011, In : Progress in Electromagnetics Research. 113, p. 285-312 28 p.

Research output: Contribution to journalArticle

Open Access
Acoustic waves
broadband
acoustics
Field programmable gate arrays (FPGA)
Bandwidth

Wireless sensor networks mapping and deployment in tropical precision farming

Harun, A., Shakaff, A., Zakaria, A., Kamarudin, L., Jaafar, M. & Ndzi, D., 2011, Third International Conference on Computational Intelligence, Modelling & Simulation, 2011 . IEEE, p. 346-350 5 p. (International Conference on Computational Intelligence, Modelling and Simulation (CIMSiM)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Greenhouses
Wireless sensor networks
Crops
Telecommunication links
Antennas
2010

Ad-hoc networks energy consumption: a review of the ad-hoc routing protocols

Kanakaris, V., Ndzi, D. & Azzi, D., 2010, In : Journal of Engineering Science and Technology Review (JESTR). 3, 1, p. 162-167 6 p.

Research output: Contribution to journalArticle

Open Access
Ad hoc networks
Routing protocols
Energy utilization
Network protocols
Simulators

A robotic welding system using image processing techniques and a CAD model to provide information to a multi‐intelligent decision module

Sanders, D. A., Lambert, G., Graham‐jones, J., Tewkesbury, G. E., Onuh, S., Ndzi, D. & Ross, C., 28 Sep 2010, In : Assembly Automation. 30, 4, p. 323-332

Research output: Contribution to journalArticle

Computer aided design
Welding
Welds
Robotics
Image processing

Modeling and simulation of near-earth wireless sensor networks for agriculture based application using OMNeT++

Kamarudin, L. M., Ahmad, R. B., Ong, B. L., Zakaria, A. & Ndzi, D., 1 Dec 2010, International Conference on Computer Applications and Industrial Electronics (ICCAIE), 2010 . IEEE, p. 131-136 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Agriculture
Wireless sensor networks
Earth (planet)
Network performance
Telecommunication networks

Spatial and temporal variation of wideband indoor channels

Ndzi, D., Savage, N. & Gremont, B., 2010, In : International Journal of Antennas and Propagation. 2010, p. 1-11 11 p., 735434.

Research output: Contribution to journalArticle

Open Access
Impulse response
Singular value decomposition
Transfer functions
Time of arrival
2009

Forensic live response and event reconstruction methods in Linux systems

Olajide, F., Savage, N., Ndzi, D. & Al-Sinani, H., 2009, PGNET 2009 : The 10th Annual PostGraduate Symposium on The Convergence of Telecommunications, Networking and Broadcasting. Liverpool John Moores University, p. 141-146 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Open Access
Crime
Linux

Improving AODV performance using dynamic density driven route request forwarding

Kanakaris, V., Ndzi, D. & Ovaliadis, K., 1 Jul 2009, In : International Journal of Wireless & Mobile Networks (IJWMN). 3, 3, p. 407-415 9 p.

Research output: Contribution to journalArticle

Open Access
Routing protocols
Energy efficiency
Throughput
Network protocols

Using integrated IT systems to minitor decay in website performance following individual improvements

Ramlall, S., Sanders, D., Tewkesbury, G., Powell, H. & Ndzi, D., 2009, In : Journal of Computing in Systems and Engineering. 10, p. 167-170 4 p.

Research output: Contribution to journalArticle

2008

Improving customer generation by increasing website performance and integrating IT systems

Ramlall, S., Sanders, D., Powell, H. & Ndzi, D., 2008, In : Journal of Computing in Systems and Engineering. 9, 5, p. 148-152 5 p.

Research output: Contribution to journalArticle

Open Access
File
Websites
Sales
Profitability
Statistics
Industry
2005

Experimental analysis of microscale rain cells and their dynamic evolution

Enjamio, C., Vilar, E., Redaño, A., Fontán, F. P. & Ndzi, D., 2005, In : Radio Science. 40, 3, 19 p.

Research output: Contribution to journalArticle

rain
rain gages
microbalances
Rain gages
Rain

Short-scale diversity in a dynamic rain fade environment

Enjamio, C., Vilar, E., Ndzi, D. & Perez-Fontan, F., 2005, In : International Journal of Satellite Communications and Networking. 23, 2, p. 143-152 10 p.

Research output: Contribution to journalArticle

Rain
Rain gages
Communication systems
Switches
2003

Radio wave propagation through vegetation: factors influencing signal attenuation

Savage, N., Ndzi, D., Seville, A., Vilar, E. & Austin, J., 2003, In : Radio Science. 38, 5, 14 p.

Research output: Contribution to journalArticle

Radio waves
radio wave
radio waves
vegetation
Wave propagation
2001

Wideband transhorizon channel characterization

Ndzi, D., Austin, J. & Vilar, E., 2001, In : Radio Science. 36, 5, p. 965-980 16 p.

Research output: Contribution to journalArticle

broadband
Bandwidth
English Channel
Singular value decomposition
Impulse response