Edit Profile (opens in new tab) Alfa, Attahiru Sule Compute Distance To: Compute Author ID: alfa.attahiru-sule Published as: Alfa, Attahiru Sule; Alfa, Attahiru S.; Alfa, A. S.; Sule Alfa, Attahiru more...less Homepage: https://home.cc.umanitoba.ca/~alfa/aboutme.html External Links: dblp Documents Indexed: 95 Publications since 1979, including 2 Books 1 Contribution as Editor Co-Authors: 44 Co-Authors with 73 Joint Publications 806 Co-Co-Authors all top 5 Co-Authors 22 single-authored 10 Xue, Jungong 7 He, Qi-Ming 7 Li, Wei Wayne 5 Chakravarthy, Srinivas R. 5 Diamond, Jeffrey E. 4 Chen, Mingyuan 4 Ye, Qiang 4 Yu, Miaomiao 3 Yannopoulos, Elias 3 Zhao, Yiqiang Q. 2 Dolhun, K. Laurie 2 Frigui, Imed 2 Gupta, Yash Pal 2 Neuts, Marcel Fernand 2 Sengupta, Bhaskar 2 Takine, Tetsuya 2 Van Houdt, Benny 1 Balakrishnan, Subramaniam 1 Bejenari, Diana 1 Breuer, Lothar 1 Castro, Inma T. 1 Dormuth, Darryl Wayne 1 Drekic, Steve 1 El-Bouri, Ahmed 1 García-Vidal, Jorge 1 Ghazaleh, Haitham Abu 1 Gómez-Corall, A. 1 Grassmann, Winfried K. 1 Haas Margolius, Barbara 1 Heragu, Sunderesh S. 1 Jewkes, Elizabeth M. 1 Jindal, Vaneeta 1 Liu, Qiaohua 1 Liu, Renbin 1 Mishkoj, G. K. 1 Mitev, Lilia 1 Popplewell, Neil 1 Rahman, Md. Mostafizur 1 Rao, T. S. S. Srinivasa 1 Saha, Subrata 1 Sapna Isotupa, K. P. 1 Shi, Yufei 1 Wang, Jinting 1 Wang, Nan 1 Xia, Li 1 Xu, Xiaoyi 1 Yeung, Raymond W. all top 5 Serials 8 Operations Research Letters 8 Queueing Systems 8 European Journal of Operational Research 6 Naval Research Logistics 6 Communications in Statistics. Stochastic Models 4 Journal of Applied Probability 4 Stochastic Models 3 Computers & Operations Research 3 Mathematical and Computer Modelling 2 Advances in Applied Probability 2 Computers & Mathematics with Applications 2 INFOR. Information Systems and Operational Research 2 Journal of the Operational Research Society 2 Performance Evaluation 2 Acta Mathematicae Applicatae Sinica. English Series 2 Transportation Science 2 Journal of Applied Mathematics and Stochastic Analysis 2 Annals of Operations Research 2 Top 2 INFORMS Journal on Computing 1 Acta Informatica 1 Mathematics of Computation 1 IEEE Transactions on Automatic Control 1 Numerische Mathematik 1 Operations Research 1 Opsearch 1 Journal of Information & Optimization Sciences 1 Asia-Pacific Journal of Operational Research 1 Mathematical Methods of Operations Research 1 Probability in the Engineering and Informational Sciences 1 1 Wireless Networks 1 RAIRO. Operations Research 1 ASTIN Bulletin 1 4OR 1 Naval Research Logistics Quarterly 1 Lecture Notes in Pure and Applied Mathematics 1 Journal of Probability and Statistics 1 Journal of Applied Mathematics & Informatics all top 5 Fields 77 Operations research, mathematical programming (90-XX) 74 Probability theory and stochastic processes (60-XX) 11 Computer science (68-XX) 5 Numerical analysis (65-XX) 3 Statistics (62-XX) 2 Information and communication theory, circuits (94-XX) 1 General and overarching topics; collections (00-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Biology and other natural sciences (92-XX) 1 Systems theory; control (93-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 71 Publications have been cited 562 times in 426 Documents Cited by ▼ Year ▼ Experimental analysis of simulated annealing based algorithms for the layout problem. Zbl 0825.90454Heragu, Sunderesh S.; Alfa, Attahiru Sule 49 1992 Accurate computation of the smallest eigenvalue of a diagonally dominant \(M\)-matrix. Zbl 0984.65033Alfa, Attahiru Sule; Xue, Jungong; Ye, Qiang 31 2002 Entrywise perturbation theory for diagonally dominant M-matrices with applications. Zbl 1022.15020Alfa, Attahiru Sule; Xue, Jungong; Ye, Qiang 25 2002 Vacation models in discrete time. Zbl 1023.90009Alfa, Attahiru Sule 21 2003 Modelling vehicular traffic using the discete time Markovian arrival process. Zbl 0860.90055Alfa, Attahiru Sule; Neuts, Marcel F. 20 1995 Discrete time queues and matrix-analytic methods. (With comments and rejoinder). Zbl 1030.60081Alfa, A. S. 19 2002 Queueing theory for telecommunications. Discrete time modelling of a single node system. Zbl 1211.90001Alfa, Attahiru Sule 18 2010 The \(\text{MAP/PH}/1\) retrial queue. Zbl 0952.60089Diamond, Jeffrey E.; Alfa, Attahiru Sule 18 1998 An \(M/PH/k\) retrial queue with finite number of sources. Zbl 1107.90008Alfa, Attahiru Sule; Isotupa, K. P. Sapna 16 2004 Approximation method for \(M/PH/1\) retrial queues with phase type inter-retrial times. Zbl 0947.90025Diamond, Jeffrey E.; Alfa, Attahiru Sule 15 1999 Markov chain representations of discrete distributions applied to queueing models. Zbl 1067.90158Alfa, Attahiru Sule 14 2004 Applied discrete-time queues. 2nd edition. Zbl 1337.90001Alfa, Attahiru S. 13 2016 Matrix analytic methods for a multi-server retrial queue with buffer. Zbl 0952.60090Diamond, Jeffrey E.; Alfa, Attahiru Sule 12 1999 Matrix-geometric solution of discrete time MAP/PH/1 priority queue. Zbl 0902.90061Alfa, Attahiru Sule 12 1998 Perturbation theory for the asymptotic decay rates in the queues with Markovian arrival process and/or Markovian service process. Zbl 0969.60096Alfa, Attahiru Sule; Xue, Jungong; Ye, Qiang 12 2000 A network design algorithm using a stochastic incremental traffic assignment approach. Zbl 0729.90985Chen, Mingyuan; Alfa, Attahiru Sule 11 1991 Duality results for block-structured transition matrices. Zbl 0978.60082Zhao, Yiqiang Q.; Li, Wei; Alfa, Attahiru Sule 11 1999 The \(MMAP[K]/PH[K]/1\) queues with a last-come-first-served preemptive service discipline. Zbl 0916.90105He, Qi-Ming; Alfa, Attahiru Sule 11 1998 A discrete MAP/PH/1 queue with vacations and exhaustive time-limited service. Zbl 0858.60090Alfa, Attahiru Sule 11 1995 Discrete-time analysis of the \(GI/G/1\) system with Bernoulli retrials: an algorithmic approach. Zbl 1122.90328Alfa, Attahiru Sule 10 2006 On approximating higher order MAPs with MAPs of order two. Zbl 0942.90014Diamond, Jeffrey E.; Alfa, Attahiru Sule 10 2000 The quasi-birth-death type Markov chain with a tree structure. Zbl 0942.60085Yeung, Raymond W.; Alfa, Attahiru Sule 10 1999 Discrete-time analysis of \(MAP\)/\(PH\)/1 multiclass general preemptive priority queue. Zbl 1044.90012Alfa, Attahiru Sule; Liu, Bin; He, Qi-Ming 10 2003 Matrix analytical methods for \(M/PH/1\) retrial queues. Zbl 0829.60091Diamond, Jeffrey E.; Alfa, Attahiru Sule 9 1995 A new algorithm for computing the rate matrix of GI/M/1 type Markov chains. Zbl 1037.60079Alfa, Attahiru Sule; Sengupta, Bhaskar; Takine, Tetsuya; Xue, Jungong 9 2002 Discrete \(NT\)-policy single server queue with Markovian arrival process and phase type service. Zbl 0913.90099Alfa, Attahiru Sule; Frigui, Imed 9 1996 Algorithms for computing waiting time distributions under different queue disciplines for the D-BMAP/PH/1. Zbl 0893.90066Frigui, Imed; Alfa, Attahiru Sule; Xu, Xiaoyi 9 1997 Algorithm for computing the queue length distribution at various time epochs in \(\mathrm{DMAP}/G^{(1, a, b)}/1/n\) queue with batch-size-dependent service time. Zbl 1347.90026Yu, Miaomiao; Alfa, Attahiru Sule 8 2015 Combined elapsed time and matrix-analytic method for the discrete time \(GI/G/1\) and \(GI^X/G/1\) systems. Zbl 1046.90016Alfa, Attahiru Sule 8 2003 Supplementary variable technique in stochastic models. Zbl 0979.60088Alfa, Attahiru Sule; Srinivasa Rao, T. S. S. 8 2000 Time-inhomogeneous bulk server queue in discrete time: A transportation type problem. Zbl 0486.90045Sule Alfa, Attahiru 7 1982 Matrix-geometric analysis of the discrete time GI/G/1 system. Zbl 0990.60091Alfa, Attahiru Sule; Li, Wei 7 2001 Discrete time analysis of MAP/PH/1 vacation queue with gated time-limited service. Zbl 0918.60077Alfa, Attahiru Sule 7 1998 A queueing model of delayed product differentiation. Zbl 1176.90125Jewkes, Elizabeth M.; Alfa, Attahiru S. 6 2009 Algorithmic analysis of the Sparre Andersen model in discrete time. Zbl 1154.62076Alfa, Attahiru Sule; Drekic, Steve 6 2007 Strategic queueing behavior for individual and social optimization in managing discrete time working vacation queue with Bernoulli interruption schedule. Zbl 1349.90241Yu, Miaomiao; Alfa, Attahiru Sule 6 2016 Response time in a tandem queue with blocking, Markovian arrivals and phase-type services. Zbl 1090.90041Van Houdt, B.; Alfa, Attahiru Sule 6 2005 Optimal control of state-dependent service rates in a \(MAP/M/1\) queue. Zbl 1390.90266Xia, Li; He, Qi-Ming; Alfa, Attahiru Sule 6 2017 A multiserver queue with Markovian arrivals and group services with thresholds. Zbl 0785.60043Chakravarthy, S.; Alfa, Attahiru Sule 5 1993 A search-based heuristic for the two-dimensional bin-packing problem. Zbl 0824.90116El-Bouri, Ahmed; Popplewell, Neil; Balakrishnan, S.; Alfa, Attahiru S. 4 1994 Optimal policies for \(M/M/m\) queue with two different kinds of \((N,T)\)-policies. Zbl 0953.90011Li, Wei; Alfa, Attahiru Sule 4 2000 Tail probability of low-priority queue length in a discrete-time priority BMAP/PH/1 queue. Zbl 1069.60085Xue, Jungong; Alfa, Attahiru Sule 4 2005 Algorithmic analysis of the BMAP/D/\(k\) system in discrete time. Zbl 1044.60087Alfa, Attahiru Sule 4 2003 Discrete-time analysis of a repairable machine. Zbl 1031.60077Alfa, Attahiru Sule; Castro, I. T. 4 2002 Optimal \((N,T)\)-policy for M/G system with cost structures. Zbl 1051.68040Alfa, Attahiru Sule; Li, Wei 4 2000 A finite capacity queue with Markovian arrivals and two servers with group services. Zbl 0803.60089Chakravarthy, S.; Alfa, Attahiru Sule 4 1994 Overload analysis of the \(PH/PH/1/K\) queue and the queue of the \(M/G/1/K\) type with very large \(K\). Zbl 1042.90529Alfa, Attahiru Sule; Zhao, Yiqiang Q. 4 2000 Geometric tail of queue length of low-priority customers in a nonpreemptive priority MAP/PH/1 queue. Zbl 1238.60106Xue, Jungong; Alfa, Attahiru S. 3 2011 A discrete single server queue with Markovian arrivals and phase type group services. Zbl 0822.60086Alfa, Attahiru Sule; Dolhun, K. Laurie; Chakravarthy, S. 3 1995 Phase-type models for cellular networks supporting voice, video and data traffic. Zbl 1145.68565Dharmaraja, S.; Jindal, Vaneeta; Alfa, Attahiru Sule 3 2008 Waiting time distribution of the \(MAP/D/k\) system in discrete time – a more efficient algorithm. Zbl 1088.90007Alfa, Attahiru Sule 3 2003 Approximating queue lengths in M(t)/D/1 queues. Zbl 0688.60072Alfa, Attahiru Sule 2 1990 Discrete-time \(\mathrm{GI}/\mathrm{G}/1\) retrial queues with time-controlled vacation policies. Zbl 1288.60123Wang, Jin-Ting; Wang, Nan; Alfa, Attahiru S. 2 2013 Modelling traffic queues at a signalized intersection with vehicle- actuated control and Markovian arrival processes. Zbl 0832.60092Alfa, A. S. 2 1995 Efficient computations for the discrete \(GI/G/1\) system. Zbl 1241.90027Alfa, Attahiru Sule; Xue, Jungong 1 2007 Computational procedures for a class of GI/D/\(k\) systems in discrete time. Zbl 1200.90054Rahman, Md. Mostafizur; Alfa, Attahiru Sule 1 2009 The \(M/G/1\) queue with server vacation in a quality control environment. Zbl 0742.60094Alfa, Attahiru Sule; Gupta, Yash P. 1 1991 Approximating queue lengths in \(M(t)/G/1\) queue using the maximum entropy principle. Zbl 0741.60094Alfa, Attahiru Sule; Chen, Mingyuan 1 1991 A simple and quick approximation algorithm for tandem, split and merge queueing networks with blocking. Zbl 0824.90066Yannopoulos, Elias; Alfa, Attahiru Sule 1 1994 Pair formation in a Markovian arrival process with two event labels. Zbl 1062.60092Neuts, Marcel F.; Alfa, Attahiru Sule 1 2004 Analysis of a GI/G\(^Y\)/1 system in discrete-time. Zbl 1065.60130Alfa, Attahiru Sule 1 2005 A simple method to obtain the stochastic decomposition structure of the busy period in \(\mathrm{Geo}/\mathrm{Geo}/1/N\) vacation queue. Zbl 1330.60115Yu, Miaomiao; Alfa, Attahiru Sule 1 2015 Two classes of time-inhomogeneous Markov chains: Analysis of the periodic case. Zbl 1144.60054Alfa, Attahiru Sule; Margolius, Barbara Haas 1 2008 A homogeneous PCS network with Markov call arrival process and phase type cell residence time. Zbl 1012.68957Alfa, Attahiru Sule; Li, Wei 1 2002 The use of nonlinear programming in matrix analytic methods. Zbl 0895.90092Alfa, Attahiru Sule; Sengupta, Bhaskar; Takine, Tetsuya 1 1998 Optimal power consumption control of sensor node based on \((N,D)\)-policy discrete-time queues. Zbl 1423.60142Liu, Renbin; Alfa, Attahiru Sule; Yu, Miaomiao 1 2019 Computational analysis of \(MMAP[K]/PH[K]/1\) queues with a mixed FCFS and LCFS service discipline. Zbl 0991.90039He, Qi-Ming; Alfa, Attahiru Sule 1 2000 A discrete queue with the Markovian arrival process and phase type primary and secondary services. Zbl 0793.60102Alfa, Attahiru Sule; Chakravarthy, S. 1 1994 An approximation method for queues in series with blocking. Zbl 0941.68516Yannopoulos, Elias; Alfa, Attahiru Sule 1 1994 A fluid model with data message discarding. Zbl 1018.90007Liu, Bin; Alfa, Attahiru Sule 1 2002 Some decomposition results for a class of vacation queues. Zbl 1408.90054Alfa, Attahiru Sule 1 2014 Optimal power consumption control of sensor node based on \((N,D)\)-policy discrete-time queues. Zbl 1423.60142Liu, Renbin; Alfa, Attahiru Sule; Yu, Miaomiao 1 2019 Optimal control of state-dependent service rates in a \(MAP/M/1\) queue. Zbl 1390.90266Xia, Li; He, Qi-Ming; Alfa, Attahiru Sule 6 2017 Applied discrete-time queues. 2nd edition. Zbl 1337.90001Alfa, Attahiru S. 13 2016 Strategic queueing behavior for individual and social optimization in managing discrete time working vacation queue with Bernoulli interruption schedule. Zbl 1349.90241Yu, Miaomiao; Alfa, Attahiru Sule 6 2016 Algorithm for computing the queue length distribution at various time epochs in \(\mathrm{DMAP}/G^{(1, a, b)}/1/n\) queue with batch-size-dependent service time. Zbl 1347.90026Yu, Miaomiao; Alfa, Attahiru Sule 8 2015 A simple method to obtain the stochastic decomposition structure of the busy period in \(\mathrm{Geo}/\mathrm{Geo}/1/N\) vacation queue. Zbl 1330.60115Yu, Miaomiao; Alfa, Attahiru Sule 1 2015 Some decomposition results for a class of vacation queues. Zbl 1408.90054Alfa, Attahiru Sule 1 2014 Discrete-time \(\mathrm{GI}/\mathrm{G}/1\) retrial queues with time-controlled vacation policies. Zbl 1288.60123Wang, Jin-Ting; Wang, Nan; Alfa, Attahiru S. 2 2013 Geometric tail of queue length of low-priority customers in a nonpreemptive priority MAP/PH/1 queue. Zbl 1238.60106Xue, Jungong; Alfa, Attahiru S. 3 2011 Queueing theory for telecommunications. Discrete time modelling of a single node system. Zbl 1211.90001Alfa, Attahiru Sule 18 2010 A queueing model of delayed product differentiation. Zbl 1176.90125Jewkes, Elizabeth M.; Alfa, Attahiru S. 6 2009 Computational procedures for a class of GI/D/\(k\) systems in discrete time. Zbl 1200.90054Rahman, Md. Mostafizur; Alfa, Attahiru Sule 1 2009 Phase-type models for cellular networks supporting voice, video and data traffic. Zbl 1145.68565Dharmaraja, S.; Jindal, Vaneeta; Alfa, Attahiru Sule 3 2008 Two classes of time-inhomogeneous Markov chains: Analysis of the periodic case. Zbl 1144.60054Alfa, Attahiru Sule; Margolius, Barbara Haas 1 2008 Algorithmic analysis of the Sparre Andersen model in discrete time. Zbl 1154.62076Alfa, Attahiru Sule; Drekic, Steve 6 2007 Efficient computations for the discrete \(GI/G/1\) system. Zbl 1241.90027Alfa, Attahiru Sule; Xue, Jungong 1 2007 Discrete-time analysis of the \(GI/G/1\) system with Bernoulli retrials: an algorithmic approach. Zbl 1122.90328Alfa, Attahiru Sule 10 2006 Response time in a tandem queue with blocking, Markovian arrivals and phase-type services. Zbl 1090.90041Van Houdt, B.; Alfa, Attahiru Sule 6 2005 Tail probability of low-priority queue length in a discrete-time priority BMAP/PH/1 queue. Zbl 1069.60085Xue, Jungong; Alfa, Attahiru Sule 4 2005 Analysis of a GI/G\(^Y\)/1 system in discrete-time. Zbl 1065.60130Alfa, Attahiru Sule 1 2005 An \(M/PH/k\) retrial queue with finite number of sources. Zbl 1107.90008Alfa, Attahiru Sule; Isotupa, K. P. Sapna 16 2004 Markov chain representations of discrete distributions applied to queueing models. Zbl 1067.90158Alfa, Attahiru Sule 14 2004 Pair formation in a Markovian arrival process with two event labels. Zbl 1062.60092Neuts, Marcel F.; Alfa, Attahiru Sule 1 2004 Vacation models in discrete time. Zbl 1023.90009Alfa, Attahiru Sule 21 2003 Discrete-time analysis of \(MAP\)/\(PH\)/1 multiclass general preemptive priority queue. Zbl 1044.90012Alfa, Attahiru Sule; Liu, Bin; He, Qi-Ming 10 2003 Combined elapsed time and matrix-analytic method for the discrete time \(GI/G/1\) and \(GI^X/G/1\) systems. Zbl 1046.90016Alfa, Attahiru Sule 8 2003 Algorithmic analysis of the BMAP/D/\(k\) system in discrete time. Zbl 1044.60087Alfa, Attahiru Sule 4 2003 Waiting time distribution of the \(MAP/D/k\) system in discrete time – a more efficient algorithm. Zbl 1088.90007Alfa, Attahiru Sule 3 2003 Accurate computation of the smallest eigenvalue of a diagonally dominant \(M\)-matrix. Zbl 0984.65033Alfa, Attahiru Sule; Xue, Jungong; Ye, Qiang 31 2002 Entrywise perturbation theory for diagonally dominant M-matrices with applications. Zbl 1022.15020Alfa, Attahiru Sule; Xue, Jungong; Ye, Qiang 25 2002 Discrete time queues and matrix-analytic methods. (With comments and rejoinder). Zbl 1030.60081Alfa, A. S. 19 2002 A new algorithm for computing the rate matrix of GI/M/1 type Markov chains. Zbl 1037.60079Alfa, Attahiru Sule; Sengupta, Bhaskar; Takine, Tetsuya; Xue, Jungong 9 2002 Discrete-time analysis of a repairable machine. Zbl 1031.60077Alfa, Attahiru Sule; Castro, I. T. 4 2002 A homogeneous PCS network with Markov call arrival process and phase type cell residence time. Zbl 1012.68957Alfa, Attahiru Sule; Li, Wei 1 2002 A fluid model with data message discarding. Zbl 1018.90007Liu, Bin; Alfa, Attahiru Sule 1 2002 Matrix-geometric analysis of the discrete time GI/G/1 system. Zbl 0990.60091Alfa, Attahiru Sule; Li, Wei 7 2001 Perturbation theory for the asymptotic decay rates in the queues with Markovian arrival process and/or Markovian service process. Zbl 0969.60096Alfa, Attahiru Sule; Xue, Jungong; Ye, Qiang 12 2000 On approximating higher order MAPs with MAPs of order two. Zbl 0942.90014Diamond, Jeffrey E.; Alfa, Attahiru Sule 10 2000 Supplementary variable technique in stochastic models. Zbl 0979.60088Alfa, Attahiru Sule; Srinivasa Rao, T. S. S. 8 2000 Optimal policies for \(M/M/m\) queue with two different kinds of \((N,T)\)-policies. Zbl 0953.90011Li, Wei; Alfa, Attahiru Sule 4 2000 Optimal \((N,T)\)-policy for M/G system with cost structures. Zbl 1051.68040Alfa, Attahiru Sule; Li, Wei 4 2000 Overload analysis of the \(PH/PH/1/K\) queue and the queue of the \(M/G/1/K\) type with very large \(K\). Zbl 1042.90529Alfa, Attahiru Sule; Zhao, Yiqiang Q. 4 2000 Computational analysis of \(MMAP[K]/PH[K]/1\) queues with a mixed FCFS and LCFS service discipline. Zbl 0991.90039He, Qi-Ming; Alfa, Attahiru Sule 1 2000 Approximation method for \(M/PH/1\) retrial queues with phase type inter-retrial times. Zbl 0947.90025Diamond, Jeffrey E.; Alfa, Attahiru Sule 15 1999 Matrix analytic methods for a multi-server retrial queue with buffer. Zbl 0952.60090Diamond, Jeffrey E.; Alfa, Attahiru Sule 12 1999 Duality results for block-structured transition matrices. Zbl 0978.60082Zhao, Yiqiang Q.; Li, Wei; Alfa, Attahiru Sule 11 1999 The quasi-birth-death type Markov chain with a tree structure. Zbl 0942.60085Yeung, Raymond W.; Alfa, Attahiru Sule 10 1999 The \(\text{MAP/PH}/1\) retrial queue. Zbl 0952.60089Diamond, Jeffrey E.; Alfa, Attahiru Sule 18 1998 Matrix-geometric solution of discrete time MAP/PH/1 priority queue. Zbl 0902.90061Alfa, Attahiru Sule 12 1998 The \(MMAP[K]/PH[K]/1\) queues with a last-come-first-served preemptive service discipline. Zbl 0916.90105He, Qi-Ming; Alfa, Attahiru Sule 11 1998 Discrete time analysis of MAP/PH/1 vacation queue with gated time-limited service. Zbl 0918.60077Alfa, Attahiru Sule 7 1998 The use of nonlinear programming in matrix analytic methods. Zbl 0895.90092Alfa, Attahiru Sule; Sengupta, Bhaskar; Takine, Tetsuya 1 1998 Algorithms for computing waiting time distributions under different queue disciplines for the D-BMAP/PH/1. Zbl 0893.90066Frigui, Imed; Alfa, Attahiru Sule; Xu, Xiaoyi 9 1997 Discrete \(NT\)-policy single server queue with Markovian arrival process and phase type service. Zbl 0913.90099Alfa, Attahiru Sule; Frigui, Imed 9 1996 Modelling vehicular traffic using the discete time Markovian arrival process. Zbl 0860.90055Alfa, Attahiru Sule; Neuts, Marcel F. 20 1995 A discrete MAP/PH/1 queue with vacations and exhaustive time-limited service. Zbl 0858.60090Alfa, Attahiru Sule 11 1995 Matrix analytical methods for \(M/PH/1\) retrial queues. Zbl 0829.60091Diamond, Jeffrey E.; Alfa, Attahiru Sule 9 1995 A discrete single server queue with Markovian arrivals and phase type group services. Zbl 0822.60086Alfa, Attahiru Sule; Dolhun, K. Laurie; Chakravarthy, S. 3 1995 Modelling traffic queues at a signalized intersection with vehicle- actuated control and Markovian arrival processes. Zbl 0832.60092Alfa, A. S. 2 1995 A search-based heuristic for the two-dimensional bin-packing problem. Zbl 0824.90116El-Bouri, Ahmed; Popplewell, Neil; Balakrishnan, S.; Alfa, Attahiru S. 4 1994 A finite capacity queue with Markovian arrivals and two servers with group services. Zbl 0803.60089Chakravarthy, S.; Alfa, Attahiru Sule 4 1994 A simple and quick approximation algorithm for tandem, split and merge queueing networks with blocking. Zbl 0824.90066Yannopoulos, Elias; Alfa, Attahiru Sule 1 1994 A discrete queue with the Markovian arrival process and phase type primary and secondary services. Zbl 0793.60102Alfa, Attahiru Sule; Chakravarthy, S. 1 1994 An approximation method for queues in series with blocking. Zbl 0941.68516Yannopoulos, Elias; Alfa, Attahiru Sule 1 1994 A multiserver queue with Markovian arrivals and group services with thresholds. Zbl 0785.60043Chakravarthy, S.; Alfa, Attahiru Sule 5 1993 Experimental analysis of simulated annealing based algorithms for the layout problem. Zbl 0825.90454Heragu, Sunderesh S.; Alfa, Attahiru Sule 49 1992 A network design algorithm using a stochastic incremental traffic assignment approach. Zbl 0729.90985Chen, Mingyuan; Alfa, Attahiru Sule 11 1991 The \(M/G/1\) queue with server vacation in a quality control environment. Zbl 0742.60094Alfa, Attahiru Sule; Gupta, Yash P. 1 1991 Approximating queue lengths in \(M(t)/G/1\) queue using the maximum entropy principle. Zbl 0741.60094Alfa, Attahiru Sule; Chen, Mingyuan 1 1991 Approximating queue lengths in M(t)/D/1 queues. Zbl 0688.60072Alfa, Attahiru Sule 2 1990 Time-inhomogeneous bulk server queue in discrete time: A transportation type problem. Zbl 0486.90045Sule Alfa, Attahiru 7 1982 all cited Publications top 5 cited Publications all top 5 Cited by 581 Authors 27 Alfa, Attahiru Sule 14 Van Houdt, Benny 13 Chaudhry, Mohan L. 10 Chakravarthy, Srinivas R. 10 Gupta, Umesh Chandra 10 Huang, Rong 9 Banik, Abhijit Datta 9 He, Qi-Ming 9 Xue, Jungong 9 Yue, Wuyi 8 Dudin, Alexander N. 8 Li, Quanlin 8 Liu, Zaiming 7 Artalejo, Jesus R. 7 Li, Rencang 7 Samanta, Sujit Kumar 7 Zhao, Yiqiang Q. 6 Zhao, Yuan 5 Amaral, André R. S. 5 Blondia, Chris 5 Fëdorova, Ekaterina Aleksandrovna 5 Ghosh, Souvik 5 Hou, Zhenting 5 Ke, Jauchuan 5 Masuyama, Hiroyuki 5 Peña, Juan Manuel 5 Shin, Yang Woo 5 Tian, Naishuo 5 Ye, Qiang 4 Drekic, Steve 4 Goswami, Veena 4 Jin, Shunfu 4 Kim, Bara 4 Kimura, Tatsuaki 4 Klimenok, Valentina Ivanovna 4 Ma, Zhanyou 4 Meini, Beatrice 4 Saffer, Zsolt 4 Sivakumar, Balasubramanian 4 Szeto, Wai Yuen 4 Tang, Yinghui 4 Yu, Miaomiao 3 Bini, Dario Andrea 3 Boute, Robert N. 3 Bruneel, Herwig 3 Choudhury, Gautam 3 Datta, Dilip 3 De Vuyst, Stijn 3 Gao, Shan 3 Ghosh, Diptesh 3 Hu, Lu 3 Jiang, Yangsheng 3 Kim, Hyunmin 3 Koev, Plamen 3 Kothari, Ravi 3 Lambrecht, Marc R. 3 Li, Jihong 3 Martello, Silvano 3 McKendall, Alan R. jun. 3 Pérez-Ocón, Rafael 3 Shi, Dinghua 3 Tadj, Lotfi 3 Takahashi, Yutaka 3 Telek, Miklós 3 Vanderperre, Edmond J. 3 Vigo, Daniele 3 Walraevens, Joris 3 Wang, Jinting 3 Wittevrongel, Sabine 3 Zhang, Hongbo 3 Zhu, Juanxiu 2 Anilkumar, M. P. 2 Anjos, Miguel F. 2 Arapostathis, Aristotle 2 Arivarignan, G. 2 Atencia, Ivan 2 Banerjee, Anuradha 2 Baumann, Hendrik 2 Chae, Kyung Chul 2 Chang, Fu-Min 2 Chen, Yanru 2 Chu, Delin 2 Diamond, Jeffrey E. 2 Disney, Stephen M. 2 Dopico, Froilán M. 2 Fernández-Villodre, Gemma 2 Fiems, Dieter 2 Ghalehkhondabi, Iman 2 Gómez-Corral, Antonio 2 Grassmann, Winfried K. 2 Heragu, Sunderesh S. 2 Horváth, Gábor 2 Jose, K. P. 2 Kalita, Zahnupriya 2 Kawanishi, Ken’ichi 2 Kim, Chesoong 2 Kim, Jeongsim 2 Kim, Nam-Ki 2 Krishna Kumar, Balasubramanian 2 Krishnamoorthy, Achyutha ...and 481 more Authors all top 5 Cited in 90 Serials 49 European Journal of Operational Research 24 Computers & Operations Research 19 Stochastic Models 18 Operations Research Letters 18 Applied Mathematical Modelling 17 Queueing Systems 17 Journal of Industrial and Management Optimization 16 Annals of Operations Research 11 Opsearch 11 Mathematical and Computer Modelling 10 Applied Mathematics and Computation 9 Journal of Computational and Applied Mathematics 9 Methodology and Computing in Applied Probability 8 Numerische Mathematik 8 International Journal of Production Research 8 Linear Algebra and its Applications 8 Top 7 Acta Mathematicae Applicatae Sinica. English Series 7 Asia-Pacific Journal of Operational Research 6 Advances in Applied Probability 6 Journal of Scientific Computing 5 Computers & Mathematics with Applications 4 Mathematics of Computation 4 Stochastic Analysis and Applications 4 Discrete Event Dynamic Systems 4 Mathematical Problems in Engineering 4 Discrete Dynamics in Nature and Society 3 Discrete Applied Mathematics 3 Journal of Applied Probability 3 Communications in Statistics. Theory and Methods 3 Probability in the Engineering and Informational Sciences 3 Journal of Systems Science and Complexity 3 Journal of Applied Mathematics and Computing 3 Optimization Letters 3 Journal of Applied Mathematics & Informatics 3 Journal of the Operations Research Society of China 2 Acta Informatica 2 Physica A 2 BIT 2 Calcolo 2 Journal of Statistical Planning and Inference 2 Naval Research Logistics 2 OR Spektrum 2 SIAM Journal on Matrix Analysis and Applications 2 International Journal of Computer Mathematics 2 International Transactions in Operational Research 2 International Journal of Applied Mathematics and Computer Science 2 CEJOR. 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Principles and Applications of Systems and Integration 1 Korean Journal of Mathematics all top 5 Cited in 21 Fields 316 Operations research, mathematical programming (90-XX) 226 Probability theory and stochastic processes (60-XX) 60 Computer science (68-XX) 56 Numerical analysis (65-XX) 32 Linear and multilinear algebra; matrix theory (15-XX) 14 Statistics (62-XX) 12 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 10 Systems theory; control (93-XX) 4 Information and communication theory, circuits (94-XX) 3 Statistical mechanics, structure of matter (82-XX) 2 Functions of a complex variable (30-XX) 2 Partial differential equations (35-XX) 2 Dynamical systems and ergodic theory (37-XX) 1 History and biography (01-XX) 1 Real functions (26-XX) 1 Ordinary differential equations (34-XX) 1 Approximations and expansions (41-XX) 1 Operator theory (47-XX) 1 Fluid mechanics (76-XX) 1 Optics, electromagnetic theory (78-XX) 1 Biology and other natural sciences (92-XX) Citations by Year