Dr Athen Ma, BEng PhDSenior LecturerEmail: athen.ma@qmul.ac.ukTelephone: +44 20 7882 5153Room Number: Engineering, Eng E101Office Hours: Wednesday 12:00-14:00TeachingResearchPublicationsTeachingDigital Circuit Design (Undergraduate) The module covers: Number Systems and Codes; Boolean Algebra and Basic Logic Functions; MAP minimisation; Combinational Logic; Synchronous Sequential Logic; VHDL Modelling and Performance (Postgraduate/Undergraduate) Background material: probability, conditional probability, Markov models, Queue modelling of OS, e.g. multi-tasking, proof (and uses) of Little's law. Workload modelling: exponential versus Pareto; call centre analysis. Simulation-how to generate random numbers from arbitrary distributions, steady state versus terminating; output analysis; some simple simulation applications. Reliability theory: oriented towards electronic systems, though e.g. passive component failure, and then to microprocessor (embedded software) systems through s/w failures Network Science: introduction to the fundamental ideas in network science: graph theory, network metrics, network models, network robustness. Approach to modelling emergence and topological robustness of supply networks, communication networks and general human-technology interaction.ResearchResearch Interests: Please visit my personal webpage. Publications Sun Y, Livan G, Ma A et al. (publicationYear). Interdisciplinary researchers attain better long-term funding performance. nameOfConference DOI: 10.1038/s42005-021-00769-z QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/75439 GRAY C, Ma A, McLaughlin O et al. (2021). Ecological plasticity governs ecosystem services in multilayer networks. nameOfConference DOI: 10.1038/s42003-020-01547-3 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/70104 Ma A (2018). Ecological networks reveal resilience of agro-ecosystems to changes in farming management. nameOfConference DOI: 10.1038/s41559-018-0757-2 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/55305 Ma A, Bohan DA, Canard E et al. (2018). A Replicated Network Approach to ‘Big Data’ in Ecology. nameOfConference DOI: 10.1016/bs.aecr.2018.04.001 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/41824 Xu X, Zhang H-Y, Luo J et al. (2017). Area-corrected species richness patterns of vascular plants along a tropical elevational gradient. nameOfConference DOI: 10.1007/s11629-016-3894-6 QMRO: qmroHref Xu X, Zhang H, Zhang D et al. (2017). Altitudinal patterns of plant species richness in the Honghe region of China. nameOfConference DOI: doi QMRO: qmroHref Zhao L, Zhang H, O'Gorman EJ et al. (2016). Weighting and indirect effects identify keystone species in food webs. nameOfConference DOI: 10.1111/ele.12638 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/15035 Lu X, Gray C, Brown LE et al. (2016). Drought rewires the cores of food webs. nameOfConference DOI: 10.1038/nclimate3002 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/13388 Consortium TQ (2016). Networking Our Way to Better Ecosystem Service Provision. nameOfConference DOI: 10.1016/j.tree.2015.12.003 QMRO: qmroHref Gray C, Hildrew AG, Lu X et al. (2016). Chapter Ten - Recovery and Nonrecovery of Freshwater Food Webs from the Effects of Acidification. nameOfConference DOI: 10.1016/bs.aecr.2016.08.009 QMRO: qmroHref Gray C, Figueroa DH, Hudson LN et al. (2015). Joining the dots: An automated method for constructing food webs from compendia of published interactions. nameOfConference DOI: 10.1016/j.fooweb.2015.09.001 QMRO: qmroHref Ma A, Mondragón RJ, Latora V (2015). Anatomy of funded research in science. nameOfConference DOI: 10.1073/pnas.1513651112 QMRO: qmroHref Poslad S, Ma A, Wang Z et al. (publicationYear). Using a Smart City IoT to Incentivise and Target Shifts in Mobility Behaviour—Is It a Piece of Pie?. nameOfConference DOI: 10.3390/s150613069 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/10894 Ma A, Mondragón RJ (publicationYear). Rich-Cores in Networks. nameOfConference DOI: 10.1371/journal.pone.0119678 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/15053 Ma A, Mondragon RJ (2015). Rich-cores in Networks. nameOfConference DOI: 10.1371/journal.pone.0119678 QMRO: qmroHref Mulder C, Bennett EM, Bohan DA et al. (2015). 10 years later: Revisiting priorities for science and society a decade after the Millennium Ecosystem Assessment. nameOfConference DOI: 10.1016/bs.aecr.2015.10.005 QMRO: qmroHref Mulder C, Bennett EM, Bohan DA et al. (2015). Chapter One 10 Years Later Revisiting Priorities for Science and Society a Decade After the Millennium Ecosystem Assessment. nameOfConference DOI: 10.1016/bs.aecr.2015.10.005 QMRO: qmroHref Gray C, Baird DJ, Baumgartner S et al. (2014). FORUM: Ecological networks: the missing links in biomonitoring science. nameOfConference DOI: 10.1111/1365-2664.12300 QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/11305 Mei H, Ma A, Poslad S et al. (2013). Short Term Traffic Volume Prediction for Sustainable Transportation in Urban Area. nameOfConference DOI: 10.1061/(ASCE)CP.1943-5487.0000316 QMRO: qmroHref Montoya LV, Ma A, Mondragon RJ (2013). Social Achievement and Centrality in MathOverflow. nameOfConference DOI: 10.1007/978-3-642-36844-8_3 QMRO: qmroHref Oshin TO, Poslad S, Ma A (2012). A Method to Evaluate the Energy-Efficiency of Wide-Area Location Determination Techniques Used by Smartphones. 2012 IEEE 15th International Conference on Computational Science and Engineering (CSE) DOI: 10.1109/ICCSE.2012.52 QMRO: qmroHref Ma A, Mondragon RJ (2012). Beyond Centrality - Finding vulnerabilities in complex networks. NetSci DOI: doi QMRO: qmroHref Ma A, Mondragon RJ (2012). Evaluation of network robustness using a node tearing algorithm. nameOfConference DOI: 10.1016/j.physa.2012.07.058 QMRO: qmroHref Ma A, Poslad S, Oshin TO (2012). Improving the Energy-Efficiency of GPS based Location Sensing Smartphone Applications. 2012 IEEE 11th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom) DOI: 10.1109/TrustCom.2012.184 QMRO: qmroHref Pinto FC, Videira A, Ma A et al. (2011). Efficient big brother networks. IEEE EUROCOM DOI: 10.1109/EUROCON.2011.5929265 QMRO: qmroHref Wang Y, Shi S, Yang X et al. (2010). Bluetooth Indoor Positioning using RSSI and Least Square Estimation. International Conference on Future Computer and Communication DOI: doi QMRO: qmroHref Yang X, Wu D, Wang Y et al. (2010). K-Means Based Clustering on Mobile Usage for Social Network Analysis Purpose. Advanced Information Management and Service (IMS), 2010 6th International Conference on DOI: doi QMRO: qmroHref Ariffin SHS, Schormans JA, Ma AHI (2009). Application of the generalised ballot theorem for evaluation of performance in packet buffers with non-first in first out scheduling. nameOfConference DOI: 10.1049/iet-com.2008.0062 QMRO: qmroHref Wang Y, Yang X, Lu N et al. (2009). A Simulation Package for Hot-spot Traffic Relief in WCDMA Networks. Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on DOI: 10.1109/WICOM.2009.5303082 QMRO: qmroHref Wang L, De Vial E, Tokarchuk L et al. (2009). Blue Danger: Live action gaming over Bluetooth. nameOfConference DOI: 10.1109/CCNC.2009.4784969 QMRO: qmroHref DONG R, TOKARCHUK LN, MA A (2009). Digging Friendship: Paper Recommendation in Social Networks. Proceedings of Networking & Electronic Commerce Research Conference DOI: doi QMRO: qmroHref Wang Y, Yang X, Ma A et al. (2009). Intelligent Resource Optimisation Using Semi-Smart Antennas in LTE OFDMA Systems. Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on DOI: 10.1109/ICCOMTA.2009.5349214 QMRO: qmroHref Tokarchuk L, Shoop K, Ma A (2009). Using Co-presence Communities to Enhance Social Recommendation. nameOfConference DOI: 10.1109/WONS.2009.4801863 QMRO: qmroHref Chew B, Wang J, Ma A et al. (2008). Anomalous Usage in Web Applications. NAEC DOI: doi QMRO: qmroHref Wang Y, Wu J, Bigham J et al. (2006). Cooperative control of WCDMA system under geographically congested situations. nameOfConference DOI: doi QMRO: qmroHref Wang Y, Ma A, Cuthbert L et al. (2006). A Multi-agent Based Intelligent Wireless Passenger Support system. Networking and Electronic Commerce Research Conference (NAEC) DOI: doi QMRO: qmroHref Wang Y, Ma A, Cuthbert L (2006). Agent Based Cooperation Control over Wireless LAN networks with Semi-Smart Antennas’, IASTED Int’l Conference on Networks and Communication Systems (NCS). IASTED Int’l Conference on Networks and Communication Systems (NCS) DOI: doi QMRO: qmroHref Wang Y, Ma A, Cuthbert L (2006). An Agent-based Passenger Support System over Heterogeneous Wireless Infrastructures in an Airport Environment. IASTED International Conference on Networks and Communication Systems (NCS) DOI: doi QMRO: qmroHref Wang Y, Ma A, Wu J et al. (2006). Cooperative control of WCDMA system under geographically congested situations. 4th IASTED Int’l Conference on Communications, Internet, and Information Technology (CIIT) DOI: doi QMRO: qmroHref Wang Y, Ma A, Cuthbert L (2006). IEEE 802.11 WLAN load balancing using adaptive antennas and cooperative controls. IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006) DOI: 10.1049/cp:20061301 QMRO: qmroHref Ma AHI, Schormans JA (2005). Fast, stable simulation of power-law packet traffic using concatenated acceleration techniques. nameOfConference DOI: 10.1049/ip-com:20045089 QMRO: qmroHref Koutsouris N, Mitrou N, Wang Y et al. (2004). An agent-based system for supporting enhanced services over wireless infrastructures. CCCT'04 DOI: doi QMRO: qmroHref Ma A, Schormans J, Cuthbert L (2003). Aggregation technique for networks with power law traffic and application to accelerated simulation. nameOfConference DOI: 10.1049/ip-com.20030216 QMRO: qmroHref Leung CM, Schormans JA, Ma AHI (2002). Measurement-based queue length distribution estimation for power-law traffic. nameOfConference DOI: 10.1049/el:20021066 QMRO: qmroHref Ma AHI, Schormans JA (2002). Hybrid technique for analysis of multiplexed power-law traffic in broadband networks. nameOfConference DOI: 10.1049/el:20020185 QMRO: qmroHref Ma AHI, Schormans JA (2002). Accelerated simulation modelling of Power-law traffic via aggregation. ICT02 DOI: doi QMRO: qmroHref Ma AHI, Schormans JA (2002). Efficient simulation modelling for long range dependent traffic. RESIM’02 DOI: doi QMRO: qmroHref Ma AHI, Schormans JA (2001). A fast simulation method for modelling IP networks. 17th UKTS DOI: doi QMRO: qmroHref Schormans JA, Pitts JM, Ma AHI et al. (2000). Accurate results for traffic engineering in the presence of LRD. 16th UKTS DOI: doi QMRO: qmroHref Ma AHI, Schormans JA, Pitts JM et al. (2000). Design rules and equivalent capacity for buffering of Pareto source. nameOfConference DOI: 10.1049/el:20000913 QMRO: qmroHref