CEMAT - Member

Members > Collaborators

António Pacheco (Pires)

Institutional Address

Instituto Superior Técnico (IST)
Av. Rovisco Pais 1
1049-001 LISBOA

Phone: +351 218417049 | Email: antonio.pacheco.pires@tecnico.ulisboa.pt

Position

Full Professor, Instituto Superior Técnico, Universidade de Lisboa

Area

Statistics and Stochastic Processes

Principal Area

Queueing Networks, Statistical Process Control, Stochastic Ordering, Symbolic Data Analysis

Qualifications

Habilitation (Agregação) in Mathematics, Instituto Superior Técnico, Technical University of Lisbon, 2006.
PhD in Operations Research, Cornell University, USA, 1994.
MSc in Applied Mathematics, Instituto Superior Técnico, Technical University of Lisbon, 1991.
BSc in Probability and Statistics, Faculty of Sciences, University of Lisbon, 1987.

Papers in International Journals

Antunes, Nelson; Jacinto, G.; Pacheco, António (2022) Statistical inference in queueing networks with probing information . Queueing Systems: 100, 493-495.

Oliveira, M. Rosário; Azeitona, M.; Pacheco, António; Valadas, Rui (2022) Association measures for interval variables . Advances in Data Analysis and Classification: 16, 491-520.

Macedo, Francisco; Valadas, Rui; Carrasquinha, E.; Oliveira, M. Rosário; Pacheco, António (2022) Feature selection using Decomposed Mutual Information Maximization . Neurocomputing: 513, 215-232.

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2021) Distribution of the number of losses in busy-periods of oscillating M-X/G/1/(n,a,b) systems . Computers & Operations Research: 129, 105180.

Morais, M. C. ; Schmid, W.; Ramos, Patrícia F.; Lazariv, T.; Pacheco, António (2020) Misleading signals in joint schemes for the mean vector and covariance matrix . Quality and Reliability Engineering International: 36, 642–651.

Finamore, Anna; Jiménez, Haydée G. ; Casanova, Marco A.; Nunes, Bernardo P.; Moura Santos, Ana; Pacheco, António (2020) A comparative analysis of two computer science degree offerings . Journal of the Brazilian Computer Society: 26, Article 3.

Macedo, Francisco; Oliveira, M. Rosário; Pacheco, António; Valadas, Rui (2019) Theoretical foundations of forward feature selection methods based on mutual information . Neurocomputing: 325, 67-89.

Santos, M.; Morais, M. C. ; Pacheco, António (2019) Comparing short and long-memory charts to monitor the traffic intensity of single server queues . Stochastics and Quality Control: 34, 9-18.

Morais, M. C. ; Schmid, W.; Ramos, Patrícia F.; Lazariv, T.; Pacheco, António; Semeniuk, I. (2019) Correction to: Comparison of joint control schemes for multivariate normal i.i.d. output . AStA Advances in Statistical Analysis: 103, 289-303.

Morais, M. C. ; Schmid, W.; Ramos, Patrícia F.; Lazariv, T.; Pacheco, António (2019) Comparison of joint control schemes for multivariate normal i.i.d. output . AStA Advances in Statistical Analysis: 103, 257-287.

Santos, M.; Morais, M. C. ; Pacheco, António (2018) Comparing short memory charts to monitor the traffic intensity of single server queues . Stochastics and Quality Control: 33, 1-21.

Oliveira, M. Rosário; Vilela, M. ; Pacheco, António; Valadas, Rui; Salvador, P. (2018) Extracting Information from Interval Data Using Symbolic Principal Component Analysis . Austrian Journal of Statistics, (in press).

Pacheco, António; Simões, Maria Lurdes; Milheiro-Oliveira, Paula (2017) Queues with Server Vacations as a Model for Pretimed Signalized Urban Traffic . Transportation Science: 51(3).

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2017) Moments of losses during busy-periods of regular and nonpreemptive oscillating MX/G/1/n systems . Annals of Operations Research: 252(1), 191–211.

Pascoal, C.; Oliveira, M. Rosário; Pacheco, António; Valadas, Rui (2017) Theoretical evaluation of feature selection methods based on mutual information . Neurocomputing: 226, 168-181.

Morais, M. C. ; Pacheco, António (2016) On hitting times for Markov time series of counts with applications to quality control . REVSTAT: 14, 455-479.

Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, W. (2016) On the misleading signals in simultaneous schemes for the mean vector and covariance matrix of multivariate i.i.d. output . Statistical Papers: 57, 471-498.

Morais, M. C. ; Pacheco, António (2016) On stochastic ordering and control charts for traffic intensity . Sequential Analysis: 35, 536-559.

Antunes, Nelson; Jacinto, G.; Pacheco, António; Wichelhaus, C. (2016) Estimation of the traffic intensity in a piecewise-stationary Mt/Gt/1 queue with probing . ACM Sigmetrics Performance Evaluation Review: 44(2), 3-5.

Samanta, S.K.; Chaudhry, M.L.; Pacheco, António; Gupta, U.C. (2015) Analytic and computational analysis of the discrete-time GI/D-MSP/1 queue using roots . Computers & Operations Research: 56, 33–40.

Samanta, S.K.; Chaudhry, M.L.; Pacheco, António (2015) Analysis of BMAP/MSP/1 queue . Methodology in Computing and Applied Probability, (in press).

Antunes, Nelson; Jacinto, G.; Pacheco, António (2015) Hop Count Distributions of the Furthest and Nearest Distance Routing Protocols in Mobile Ad Hoc Networks . SIAM Journal on Applied Mathematics: 75(2), 335–349.

Morais, M. C. ; Ramos, Patrícia F.; Pacheco, António; Schmid, W. (2014) On the impact of falsely assuming i.i.d. output in the probability of misleading signals . REVSTAT – Statistical Journal: 12(3), 221-245.

Kulikova, Maria; Pacheco, António (2013) Kalman Filter Sensitivity Evaluation with Orthogonal and J-Orthogonal Transformations . IEEE Transactions on Automatic Control: 58(7), 1798-1804.

Antunes, Nelson; Jacinto, G.; Pacheco, António (2013) Probing a M/G/1 queue with general input and service times . ACM SIGMETRICS Performance Evaluation Review: 41(3), 34-36.

Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, Wolfgang (2013) Stochastic ordering in the qualitative assessment of the performance of simultaneous schemes for bivariate processes . Sequential Analysis-Design Methods and Applications: 32(2), 214-229.

Morais, M. C. ; Pacheco, António (2012) A note on the aging properties of the run length of Markov-type control charts . Sequential Analysis-Design Methods and Applications: 31(1), 88-98.

Chaudhry, M. L.; Samanta, S. K.; Pacheco, António (2012) Analytically Explicit Results for the Gi/c-Msp/1/infinity Queueing System Using Roots . Probability in the Engineering and Informational Sciences: 26(2), 221-244.

Pacheco, António; Samanta, S. K.; Chaudhry, M. L. (2012) A Short Note on the Gi/geo/1 Queueing System . Statistics & Probability Letters: 82(2), 268-273.

Ferreira, Fátima; Pacheco, António; Teodoro, Filomena (2011) Performance evaluation of airport taxi services provision . International Journal of Mathematical Modelling and Numerical Optimisation: 2(3), 297-312.

Nogueira, A.; Salvador, P.; Valadas, Rui; Pacheco, António (2011) Markovian modelling of Internet traffic . Lecture Notes in Computer Science: 5233, 98-124.

Ferreira, Fátima; Pacheco, António (2011) Stochastic Ordering of Semi-Markov Processes . Lecture Notes in Computer Science: 5233, 393-422.

Nogueira, Antonio; Salvador, Paulo; Valadas, Rui; Pacheco, António (2010) Modeling Self-Similar Traffic Over Multiple Time Scales Based on Hierarchical Markovian and L-System Models . Computer Communications: 33, S3-S10.

Antunes, Nelson; Jacinto, G.; Pacheco, António (2010) An analytical framework to infer multihop path reliability in MANETs . ACM SIGMETRICS Performance Evaluation Review: 38(1), 323-332.

Oliveira, M. Rosário; Pacheco, António; Pascoal, C.; Valadas, Rui; Salvador, P. (2009) On the dependencies between Internet flow characteristics . Lecture Notes in Computer Science: 5464, 68-80.

Knoth, Sven; Morais, M. C. ; Pacheco, António; Schmid, Wolfgang (2009) Misleading signals in simultaneous residual schemes for the mean and variance of a stationary process . Communications in Statistics-Theory and Methods: 38(16-17), 2923-2943.

Pacheco, António; Ribeiro, Helena (2008) Consecutive customer losses in oscillating GI^(X)/M//n systems with state dependent services rates . Annals of Operations Research: 162(1), 143-158.

Ferreira, Fátima; Pacheco, António (2008) Analysis of GI^X/M(n)//N systems with stochastic customer acceptance policy . Queueing Systems: 58(1), 29-55.

Estepa, A.; Estepa, R.; Pacheco, António (2008) Accurate resource estimation for generalized VoIP sources . Telecommunication Systems: 39(1), 37-50.

Morais, M. C. ; Okhrin, Y.; Pacheco, António; Schmid, W. (2008) EWMA charts for multivariate output: some stochastic ordering results . Communications in Statistics - Theory and Methods: 37(16), 2653-2663.

Pacheco, António; Ribeiro, Helena (2008) Consecutive customer losses in regular and oscillating M^X/G/1/n systems . Queueing Systems. Theory and Applications.: 58(2), 121-136.

Antunes, Nelson; Jacinto, G.; Pacheco, António (2008) On the Minimum Hop Count and Connectivity in One-Dimensional ad Hoc Wireless Networks . Telecommunication Systems: 39(2), 137-143.

Pacheco, António; Ribeiro, Helena (2008) Moments of the duration of busy periods of M^X/G/1/n systems . Probability in the Engineering and Informational Sciences: 22(3), 347-354.

Fernandes, E.; Pacheco, António; Penha-Gonçalves, C. (2007) Mapping of quantitative trait loci using the skew-normal distribution . Journal of Zhejiang University SCIENCE B: 8(11), 792-801.

Ferreira, Fátima; Pacheco, António (2007) Comparison of Level-Crossing Times for Markov and Semi-Markov Processes . Statistics & Probability Letters: 77(2), 151-157.

Morais, M. C. ; Pacheco, António (2007) Shewhart schemes with variable sampling intervals revisited . Sequential Analysis-Design Methods and Applications: 26(3), 265–282.

Oliveira, M. Rosário; Valadas, Rui; Pacheco, António; Salvador, P. (2007) Cluster analysis of Internet users based on hourly traffic utilization . IEICE Transactions on Communications: E90-B(7), 1594-1607.

Morais, M. C. ; Pacheco, António (2006) Combined CUSUM-Shewhart schemes for binomial data . Economic Quality Control: 21(1), 43-57.

Ferreira, Fátima; Pacheco, António (2006) Analysis of GI/M/s/c queues using uniformization . Computers & Mathematics with Applications: 51(2), 291-304.

Morais, M. C. ; Pacheco, António (2006) Assessing the impact of head starts in the performance of one-sided Markov-type control schemes . Sequential Analysis-Design Methods and Applications: 25(4), 405-420.

Kwiatkowska, M; Norman, G; Pacheco, António (2006) Model Checking Expected Time and Expected Reward Formulae with Random Time Bounds . Computers & Mathematics with Applications: 51(2), 305-316.

Morais, M. C. ; Okhrin, Y.; Pacheco, António; Schmid, W. (2006) On the stochastic behaviour of the run length of EWMA control schemes for the mean of correlated output in the presence of shifts in sigma . Statistics & Decisions: 24, 1001-1018.

Ferreira, Fátima; Pacheco, António (2005) Level crossing ordering of semi-Markov processes and Markov chains . Journal of Applied Probability: 42(4), 989-1002.

Antunes, Nelson; Nunes, Cláudia; Pacheco, António (2005) Functionals of Markovian Branching D-Bmaps . Stochastic Models: 21(2-3), 261-278.

Ferreira, Fátima; Pacheco, António (2005) Level crossing ordering of skip-free to the right continuous time Markov chains. . Journal of Applied Probability: 42(1), 52-60.

Salvador, P..; Pacheco, António; Valadas, Rui (2004) Modeling IP traffic: joint characterization of packet arrivals and packet arrivals using BMAPs . Computer Networks: 44(3), 335-352.

Nogueira, A.; Salvador, P.; Valadas, Rui; Pacheco, António (2004) Fitting self-similar traffic by a superposition of MMPPs modeling the distribution at multiple time scales . IEICE Transactions on Communications: E87-B(3), 678-688.

Salvador, P.; Nogueira, A.; Valadas, Rui; Pacheco, António (2004) Multi-time-scale traffic modeling using Markovian and L-systems models . Lecture Notes in Computer Science: 3262, 297-306.

Morais, M. C. ; Pacheco, António (2004) A note on the ageing character of the run length of Markov-type quality control schemes . Journal of Applied Probability: 41(4), 1243-1247.

Nogueira, A.; Salvador, P.; Valadas, Rui; Pacheco, António (2003) Modeling self-similar traffic through Markov modulated Poisson processes over multiple time scales . Lecture Notes in Computer Science: 2720, 550-560.

Mateus, P.; Morais, M. C. ; Nunes, Cláudia; Pacheco, António; Sernadas, A.; Sernadas, C. (2003) Categorical foundations for randomly timed automata . Theoretical Computer Science: 308(1-3), 393-427.

Salvador, P.; Valadas, Rui; Pacheco, António (2003) Multiscale fitting procedure using Markov modulated Poisson processes . Telecommunication Systems: 23(1), 123-148.

Nogueira, A.; Salvador, P.; Valadas, Rui; Pacheco, António (2003) Modeling network traffic with multifractal behavior . Telecommunication Systems: 24(2), 339-362.

Kwiatkowska, M.; Norman, G.; Pacheco, António (2002) Model checking CSL Until Formulae with Random Time Bounds . Lecture Notes in Computer Science: 2399, 152-168.

Antunes, Nelson; Pacheco, António; Rocha, R. (2002) An integrated traffic model for multimedia wireless networks . Computer Networks: 38(1), 25-41.

Antunes, Nelson; Pacheco, António; Rocha, R. (2002) A Markov renewal based model for wireless networks . Queueing Systems. Theory and Applications: 40, 247-281.

Mateus, P. ; Pacheco, António; Pinto, J. Pinto; Sernadas, A.; Sernadas, C. (2001) Probabilistic situation calculus . Annals of Mathematics and Artificial Intelligence: 32(1/4), 393-43.

Morais, M. C. ; Pacheco, António (2001) Some stochastic properties of upper one-sided X-bar and EWMA charts for mu in the presence of shifts in sigma . Sequential Analysis-Design Methods and Applications: 20, 1-12.

Morais, M. C. ; Pacheco, António (2000) On the performance of combined EWMA schemes for mu and sigma: a Markovian approach . Communications in Statistics - Simulation and Computation: 29(1), 153-174.

Antunes, Nelson; Pacheco, António; Rocha, R. (2000) Traffic modeling for broadband wireless networks: the highway scenario . Advances in Performance Analysis: 3(2), 109-136.

Morais, M. C. ; Pacheco, António (1999) Counted data control charts sensitive to sudden increases of the summary statistic . Statistical Review: 1, 25-45.

Morais, M. C. ; Pacheco, António (1998) Two stochastic properties of one-sided exponentially weighted moving average control charts . Communications in Statistics - Simulation and Computation: 27(4), 937–952.

Antunes, Nelson; Rocha, R.; Pinto, P.; Pacheco, António (1998) Impact of next-generation wireless networks requirements on teletraffic modeling . Interoperable Communication Network: 1(2-4), 706-715.

Pacheco, António; Prabhu, N.U. (1996) A Markovian storage model . The Annals of Applied Probability: 6(1), 76-91.

Prabhu, N.U.; Pacheco, António (1995) A storage model for data communication systems . Queueing Systems. Theory and Applications: 19(1-2), 1-40.

Pacheco, António (1994) Second-order properties of the loss probability in M/M/s/s+c systems . Queueing Systems. Theory and Applications: 15(1-4), 289-308.

Pacheco, António (1994) Some properties of the delay probability in M/M/s/s+c systems . Queueing Systems. Theory and Applications: 15(1-4), 309-324.

Books

Pacheco, António; Prabhu, N.U.; Tang, L.C. (2009) Markov-Modulated Processes and Semiregenerative Phenomena . World Scientific, Singapore, 224 pp..

Papers or Chapters in Edited Books

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2020) Numbers of Served and Lost Customers in Busy-Periods of M/M/1/n Systems with Balking . Lecture Notes in Computer Science: 12251, 147-156.

Subtil, Ana; Oliveira, M. Rosário; Valadas, Rui; Pacheco, António; Salvador, Paulo (2020) Detecting Internet-Scale Traffic Redirection Attacks Using Latent Class Models . Advances in Intelligent Systems and Computing: 942, 370-380.

Macedo, Francisco; Milheiro-Oliveira, Paula; Pacheco, António; Simões, Maria Lurdes (2017) Application of a Particular Class of Markov Chains in the Assessment of Semi-actuated Signalized Intersections . Lecture Notes in Computer Science: 10378, 138-151.

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2016) On the blocking probability and loss rates in nonpreemptive oscillating queueing systems . Lecture Notes in Computer Science, Springer, Cham: 9845, 155-166.

Morais, M. C. ; Ramos, Patrícia F.; Pacheco, António (2015) Strategies to reduce the probability of a misleading signal . Frontiers in Statistical Quality Control (Vol. 11), 183-199.

Jacinto, G.; Antunes, Nelson; Pacheco, António (2014) Nearest Neighbor Connectivity in Two-Dimensional Multihop MANETs . New Advances in Statistical Modeling and Applications: Springer-Verlag, 85-94.

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2013) Distribution of the number of losses in busy-periods of M^X/G/1/n Systems . Advances in Regression, Survival Analysis, Extreme Values, Markov Processes and Other Statistical Applications, Springer Berlin Heidelberg, 163-171.

Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, W. (2013) Misleading signals in simultaneous residual schemes for the process mean and variance of AR(1) processes: a stochastic ordering approach . Advances in Regression, Survival Analysis, Extreme Values, Markov Processes and Other Statistical Applications, Springer Berlin Heidelberg, 173-182.

Jacinto, G.; Antunes, Nelson; Pacheco, António (2013) Modelling the duration of multihop paths in Mobile Ad Hoc Networks . Recent Developments in Modeling and Applications in Statistics, Springer Berlin Heidelberg, 249-260.

Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, W. (2013) Misleading signals in simultaneous schemes for the mean vector and covariance matrix of a bivariate process . Recent Developments in Modeling and Applications in Statistics Studies in Theoretical and Applied Statistics, Springer Berlin Heidelberg, 225–235.

Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, W. (2012) Assessing the impact of autocorrelation in misleading signals in simultaneous residual schemes for the process mean and variance: a stochastic ordering approach . Frontiers in Statistical Quality Control 10, Physica-Verlag HD, 35–52.

Pascoal, C.; Oliveira, M. Rosário; Pacheco, António; Valadas, Rui (2010) Detection of Outliers Using Robust Principal Component Analysis: a Simulation Study . Advances in Intelligent and Soft Computing: 77, 499-507.

Pacheco, António; Ribeiro, Helena (2009) Momentos do número de perdas de clientes em períodos de ocupação contínua de sistemas oscilantes M/G/1/n (Moments of the number of losses in busy periods of finite oscillating M/G/1/n queueing systems) . Estatística. Arte de Explicar o Acaso, Edições SPE, Lisboa, 497-510.

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2009) Análise de sistemas oscilantes M^X/G/1/(n,a,b) . Estatística. Arte de Explicar o Acaso, Edições SPE, Lisboa, 233-244.

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2009) Analysis of finite oscillating GI^X/M(m)//N queueing systems . Recent Advances in Stochastic Operations Research, World Scientific, Singapore, 79-98.

Ferreira, Fátima; Pacheco, António (2007) An efficient approach to analyze finite buffer queues with generalized Pareto interarrival times and exponential . Recent Advances in Stochastic Operations Research, World Scientific, Singapore, 205-224.

Pacheco, António; Ribeiro, Helena (2007) Bursts and gaps of Markov renewal arrival processes . Recent Advances in Stochastic Operations Research, World Scientific, Singapore, 245-262.

Pacheco, António; Ribeiro, Helena (2006) Sucessões markovianas com recompensas e visitas a conjuntos de estados em processos semi-markovianos (Markov-reward sequences and visits to sets of states in semi-Markov processes) . In L. Canto e Castro, E.G. Martins, C. Rocha, M.F. Oliveira, M.M. Leal, and F. Rosado, editors, Ciência Estatística: Edições SPE, Lisboa, 545-557.

Morais, M. C. ; Pacheco, António (2006) Misleading signals in joint schemes for mu and sigma . Frontiers in Statistical Quality Control (Vol. 8), 100-122.

Morais, M. C. ; Pacheco, António (2006) Ordenação estocástica: da curva de Lorenz ao controlo de qualidade (Stochastic ordering: from the Lorenz curve to quality control) . Ciência Estatística: Edições SPE, Lisboa, 85-98.

Ferreira, Fátima; Pacheco, António (2006) Ordenação em excedência de nível de cadeias de Markov e processos semi-markovianos com espaço de estados ordenado (Level-crossing ordering of Markov chains and semi-Markov processes with ordered state space) . In L. Canto e Castro, E.G. Martins, C. Rocha, M.F. Oliveira, M.M. Leal, and F. Rosado, editors,Ciência Estatística: Edições SPE, Lisboa, 99-110.

Morais, M. C. ; Pacheco, António (2006) Ordenação estocástica (Stochastic ordering) . Ciência Estatística: Edições SPE, Lisboa, 81-84.

Jacinto, G.; Pacheco, António; Antunes, Nelson (2005) Avaliação de medidas de controlo de redes de comunicação sem fios (Evaluation of control measures for wireless communication networks) . In C.A. Braumann, P. Infante, M.M. Oliveira, R. Alpizar-Jara, and F. Rosado, editors, Estatística Jubilar: Edições SPE, Lisboa, 379-390.

Ferreira, Fátima; Pacheco, António (2005) Ordenação estocástica em excedência de nível de processos semi-markovianos (Level-crossing ordering of semi-Markov processes) . In C.A. Braumann, P. Infante, M.M. Oliveira, R. Alpizar-Jara, and F. Rosado, editors,Estatística Jubilar: Edições SPE, Lisboa, 281-292.

Pacheco, António; Ribeiro, Helena (2005) Visitas a conjuntos de estados em processos semi-markovianos (Visits to set of states in semi-Markov processes) . In C.A. Braumann, P. Infante, M.M. Oliveira, R. Alpizar-Jara, and F. Rosado, editors, Estatística Jubilar: Edições SPE, Lisboa, 537-548.

Ferreira, Fátima; Pacheco, António (2004) Análise de sistemas GI^B/M/s/c via ordenação estocástica (Analysis of GI^B/M/s/c via stochastic ordering) . In P.M.M. Rodrigues, E.L. Rebelo, and F. Rosado, editors, Estatística com Acaso e Necessidade: Edições SPE, Lisboa, 213-224.

Morais, M. C. ; Pacheco, António (2004) Taxas de alarme de esquemas de controlo markovianos (Alarm rates in Markovian control schemes) . Estatística com Acaso e Necessidade: Edições SPE, Lisboa, 483-491.

Nunes, Cláudia; Pacheco, António (2004) Cadeias Markov moduladas (Markov modulated chains) . In P.M.M. Rodrigues, E.L. Rebelo and F. Rosado, editors, Estatística com Acaso e Necessidade: Edições SPE, Lisboa, 529-540.

Jacinto, G.; Pacheco, António; Antunes, Nelson (2004) Modelo adaptativo de partilha de largura de banda em cenário de auto-estrada (Bandwidth sharing model in a highway scenario) . In P.M.M. Rodrigues, E.L. Rebelo, and F. Rosado, editors, Estatística com Acaso e Necessidade: Edições SPE, Lisboa, 349-360.

Morais, M. C. ; Pacheco, António (2004) A note on stochastic ordering criteria in SPC for the case of correlated output . Frontiers in Statistical Quality Control (Vol. 7), 237–260.

Ferreira, Fátima; Pacheco, António (2003) Análise de filas GI/M/s/c utilizando uniformização (Analysis of GI/M/s/c queues using uniformization). . In P. Brito, A. Figueiredo, F. Sousa, P. Teles, and F. Rosado, editors, Literacia e Estatística: Edições SPE, Lisboa, 261-272.

Nunes, Cláudia; Pacheco, António (2002) Sojourn and passage times in Markov chains . In G. Latouche and P. Taylor, editors, Matrix-Analytic Methods Theory and Applications: World Scientific, New Jersey, 311-332.

Morais, M. C. ; Pacheco, António (2001) Misleading signals em esquemas combinados EWMA para mu e sigma (Misleading signals in combined EWMA schemes for mu and sigma) . Um Olhar Sobre a Estatística: Edições SPE, Lisboa, 334-348.

Nunes, Cláudia; Pacheco, António (2001) Estimação dos estados da cadeia de Markov de um MMPP (State estimation of the Markov chain of an MMPP) . In P. Oliveira and E. Athayde, editors, Um Olhar Sobre a Estatística: Edições SPE, Lisboa, 238-247.

Morais, M. C. ; Pacheco, António (2001) Ordenação estocástica na análise de desempenho de esquemas de controlo de qualidade (Stochastic ordering in the performance analysis of quality control schemes) . A Estatística em Movimento: Edições SPE, Lisboa, 247-260.

Morais, M. C. ; Pacheco, António (1999) Comparação estocástica de tempos de primeira passagem: uma aplicação a controlo de qualidade, fiabilidade e filas de espera (Stochastic comparison of first passage times: an application to quality control, reliability and queues) . Afirmar a Estatística: Um Desafio para o Século XXI: Edições SPE, Lisboa, 303-314.

Morais, M. C. ; Pacheco, António (1998) Ordenação estocástica: Um pouco de história e aplicações (On the history and applications of stochastic ordering) . Estatística: A Diversidade na Unidade: Edições Salamandra, Lisboa, 221-235.

Nunes, Cláudia; Pacheco, António (1998) Martingalas: uma ferramenta em inferência estatística (Martingales and statistical inference) . In M. Souto de Miranda and I. Pereira, editors, Estatística: A Diversidade na Unidade: Edições Salamandra, Lisboa, 393-403.

Pacheco, António (1997) Uma equação de modelos de inventário em tempo contínuo (A storage equation on continuous time) . In R. Vasconcelos, I. Fraga Alves, L. Canto e Castro, and D. Pestana, editors, A Estatística a Decifrar o Mundo: Edições Salamandra, Lisboa, 217-230.

Pacheco, António; Prabhu, N.U. (1995) Markov-additive processes of arrivals . In J.H. Dshalalow, editor, Advances in Queueing: Theory, Methods and Open Problems, Chap. 6: CRC, Boca Raton, Florida, 167-194.

Communications in Conference Proceedings

Finamore, Anna; A. Moura Santos; Nunes, B.P.; Pacheco, António (2016) Probabilidades e Estatística: como conseguir uma experiência de aprendizagem gratificante? . Atas de CNaPPES 2016: Congresso Nacional de Práticas Pedagógicas no Ensino Superior, Lisboa, Portugal, 14-15, 417-426.

Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, W. (2016) On the influence of control statistics in the performance of joint schemes for location and spread . Proceedings of the 10th Workshop on Statistics, Mathematics and Computation.

Boscarino, S.; Goetz, T.; Heilio, M.; Hjorth, P.; Jablonska-Sabuka, M.; Jurlewicz, A.; Khoury, N.; Nunes, Cláudia; Pacheco, António; Rocha, J.; Romano, V.; Russo, G.; Serna, S. (2016) Modeling Clinic for Industrial Mathematics: A collaborative project under Erasmus+ program . Proceedings of ECMI2016 (19th European Conference on Mathematics for Industry), 13-17 June 2016, Santiago de Compostela, Spain.

Oliveira, M. Rosário; Vilela, M. ; Pacheco, António; Valadas, Rui; Salvador, P. (2016) Extracting Information from Interval Data Using Symbolic Principal Component Analysis. Computer Science Analysis and Modeling. Theoretical and Applied Stochastics . Proceedings of the XI International Conference on Computer Data Analysis & Modeling (CDAM-2016), Minsk, September 6-10, 45-52.

Finamore, Anna; A. Moura Santos; Nunes, B.P.; Pacheco, António (2016) A Case Study of a Probability and Statistics Course: Improving Students’ Performance with Formative Assessment . Proceedings of TEFA 2016 (3rd Workshop on Technology-Enhanced Formative Assessment, 16 September 2016, Lyon, France.

Morais, M. C. ; Ramos, Patrícia F.; Pacheco, António (2013) Strategies to reduce the probability of a misleading signal . Proceedings of the XIth International Workshop on Intelligent Statistical Quality Control, 229–244.

Pascoal, C.; Oliveira, M. Rosário; Valadas, Rui; Filzmoser, P.; Salvador, P.; Pacheco, António (2012) Robust feature selection and robust PCA for internet traffic anomaly detection . Proceedings of IEEE, INFOCOM: 25-30 March, Orlando, FL, 1755–1763.

Ramos, Patrícia F.; Morais, M. C. ; Pacheco, António; Schmid, W. (2010) Assessing the impact of autocorrelation in misleading signals in simultaneous residual schemes for the process mean and variance: a stochastic ordering approach . Proceedings of the X International Workshop on Intelligent Statistical Quality Control.

Ferreira, Fátima; Pacheco, António (2009) Level-crossing ordering of M/M/c retrial queues . Proceedings of International Conference on Numerical Analysis and Applied Mathematics, Rethymno, Greece, 18/09-22/09: 1-2, 381-384.

Loureiro, D.; Borba, R; Rebelo, M.; Alegre, H.; Coelho, S.; Covas, D.; Amado, Conceição; Pacheco, António; Pina, A. (2009) Analysis of household night consumption . Proceedings of the CCWI 2009 conference, Integrating Water Systems, CRC Press, Londres, Reino Unido: ISBN 978-0-415-54851-9, 557-56.

Nunes, Cláudia; Pacheco, António (2008) Statistical models to predict electricity prices . Proceedings of 5th IEEE International Conference on the European Electricity Market Location, Lisbon, Portugal, May 28-30, 1-6.

Pacheco, António; Ribeiro, Helena (2007) Algorithmic approach to compute moments of the duration of busy periods in oscillating queueing systems . Procs. of the International Workshop on Recent Advances in Stochastic Operations Research - RASOR 2007, Nanzan University: Japan, March 5-6, 235-242.

Ferreira, Fátima; Pacheco, António; Ribeiro, Helena (2007) Markov regenerative analysis of finite oscillating queueing systems . Procs. of the International Workshop on Recent Advances in Stochastic Operations Research - RASOR 2007, Nanzan University: Japan, March 5-6, 235-242.

Pacheco, António; Ribeiro, Helena (2006) Consecutive customer loss probabilities in M/G/1/n and GI/M(m)/n systems . Procs. SMCTools - Tools for Solving Structured Markov Chains: Pisa, Italy, October 10.

Pacheco, António; Ribeiro, Helena (2006) Algorithms for computing moments of the length of busy-periods of single-server systems . Proceedings of the 10th WSEAS International Conference on COMPUTERS, Vouliagmeni, Athens, Greece, July 13-15, 986-991.

Oliveira, M. Rosário; Sertório, L.; Valadas, Rui; Pacheco, António (2006) Decomposition of network flows with applications to cluster analysis of Internet access traffic. . Procs. Second Conference on Next Generation Internet Networks – Traffic Engineering: Valencia, Spain, April 3-5.

Antunes, Nelson; Nunes, Cláudia; Pacheco, António (2006) Sojourn time of elastic flows under perturbation of unresponsive traffic . Procs. Second Conference on Next Generation Internet Networks – Traffic Engineering, Valencia: Spain, April 3-5.

Ferreira, Fátima; Pacheco, António (2005) An efficient approach to analyze finite buffer queues with generalized Pareto interarrival times and exponential service . Procs. International Workshop on Recent Advances in Stochastic Operations Research - RASOR 2005: Canmore, Canada, August 25-26, 34-41.

Nogueira, A. Nogueira; Oliveira, M. Rosário; Salvador, P. ; Valadas, Rui; Pacheco, António (2005) Using Neural Networks to Classify Internet Users . In Procs. AICT/SAPIR/ELETE 2005, 183-188.

Ferreira, Fátima; Pacheco, António (2005) Simulation of semi-Markov processes and Markov chains ordered in level crossing . In Procs. of the First Conference on Next Generation Internet Networks - Traffic Engineering: Rome, April 18-20.

Ribeiro, Helena; Pacheco, António (2005) Bursts and gaps of Markov renewal arrival processes . Procs. International Workshop on Recent Advances in Stochastic Operations Research - RASOR 2005, Canmore: Canada, August 25-26, 211-218.

Nogueira, A.; Oliveira, M. Rosário; Salvador, P.; Valadas, Rui; Pacheco, António (2005) Classification of Internet users using Discriminant Analysis and Neural Networks . In Procs. of the First Conference on Next Generation Internet Networks - Traffic Engineering: Rome, April 18-20.

Ferreira, Fátima; Pacheco, António (2004) Stochastic ordering of semi-Markov processes . Procs. of the Second International Conference on the Performance Modelling and Evaluation of Heterogeneous Networks (HET-NETs´04), Ilkle: UK, July 26-28, T5/1-11.

Ferreira, Fátima; Pacheco, António (2004) Some results for GI^X/M/s/c queues . In Procs. of The 2005 International Symposium on Applications and the Internet (SAINT 2005 Workshops): Trento,January 31-February 4, 252-255.

Morais, M. C. ; Pacheco, António (2004) Misleading signals in joint schemes for mu and sigma . Proceedings of the VIIIth International Workshop on Intelligent Statistical Quality Control (Eds. Grzegorzewski, P. et al.), 151–173.

Ferreira, Fátima; Pacheco, António (2004) Analysis of GI^X/M/s/c systems via uniformisation and stochastic ordering . Procs. of the First Workshop on New Trends in Modelling Quantitative Methods and Measurements, Zakopane: Poland, June 27-29, 97-133.

Oliveira, M. Rosário; Valadas, Rui; Pacheco, António; Salvador, P. (2003) Cluster analysis of internet users based on hourly traffic utilization . Procs. Int. Working Conference on Performance Modeling and Evaluation of Heterogeneuous Networks - HET-NETs, Ilkley, West Yorkshire, UK: July 21-23, 1: 56/1-56/14.

Nogueira, A.; Salvador, P. ; Valadas, Rui; Pacheco, António (2003) Markovian approach for modeling IP traffic behavior on several time scales . In Procs. Conference on Performance and Control of Next-Generation Communications Networks, Orlando, Florida: September 9-10, 29-40.

Nogueira, A. ; Salvador, P.; Valadas, Rui; Pacheco, António (2003) A hierarchical approach based on MMPPs for modeling self-similar traffic over multiple time scales . Procs. Int. Working Conference on Performance Modeling and Evaluation of Heterogeneuous Networks - HET-NETs, Ilkley, West Yorkshire: UK, July 21-23, 1: 37/1-37/13.

Kwiatkowska, M.; Norman, G.; Pacheco, António (2002) Model checking expected time and expected reward formulae with random time bounds . Procs. Second Euro-Japanese Workshop on Stochastic Risk Modelling for Finance, Insurance, Production and Reliability, Chamonix: France, September 18-20, 282-291.

Mateus, P.; Pacheco, António; Pinto, J. (2002) Observations and the probabilistic situation calculus . Eighth International Conference on Principles of Knowledge Representation and Reasoning (KR2002), 327-338.

Ferreira, Fátima; Pacheco, António (2002) Analysis of Pareto/M/s/c queues using uniformization . Procs. Second Euro-Japanese Workshop on Stochastic Risk Modelling for Finance, Insurance, Production and Reliability, Chamonix: France, September 18-20, 101-110.

Antunes, Nelson; Nunes, Cláudia; Pacheco, António (2002) A queueing network with Markov modulated input . Procs. Second Euro-Japanese Workshop on Stochastic Risk Modelling for Finance, Insurance, Production and Reliability, Chamonix: France, September 18-20, 15-24.

Morais, M. C. ; Pacheco, António (2001) Evaluating the impact of misleading signals in joint schemes for mu and sigma . Revista de Estatística - Statistical Review, Proceedings of the 23rd European Meeting of Statisticians Tecnopolo Funchal, Madeira, Portugal, August 13-18: 2/2001, 285-286.

Antunes, Nelson; Pacheco, António; Rocha, R. (2001) Modelling and performance evaluation of a broadband wireless network . Revista de Estatística - Statistical Review, Proceedings of the 23rd European Meeting of Statisticians, Tecnopolo Funchal, Madeira, Portugal, August 13-18: 2/2001, 37-38.

Morais, M. C. ; Pacheco, António (2001) Assessing the impact of correlation in the performance of residual schemes: a stochastic ordering approach . Proceedings of the VIIth International Workshop on Intelligent Statistical Quality Control, 334–348.

Nunes, Cláudia; Pacheco, António (1999) Stability for input-output systems . Proceedings of ASMDA99 - Applied Stochastic Models and Data Analysis: Quantitative Methods in Business and Industry Society. InstitutoNacional de Estatística, Lisboa, 410-415.

Morais, M. C. ; Pacheco, António (1998) Comparing first passage times of Markovian processes . Proceedings of the 2nd International Symposium on Semi-Markov Models: Theory and Applications.

Nunes, Cláudia; Pinto, J.R. Caldas; Pacheco, António (1998) Two-dimensional forgetting factor . Proceedings of the 3rd Portuguese Conference on Automatic Control - CONTROLO´98, Coimbra September 9-11, 513-517.

Nunes, Cláudia; Pacheco, António (1998) Parameter estimation in MMPPs . Proceedings of the 2nd International Symposium on Semi-Markov Models: Theory and Applications - Compiègne, December 9-11, 1998. Included in the section "Statistical Estimation II".

- Coordinator of the PhD Program in Statistics & Stochastic Processes of Instituto Superior Técnico.

- Coordinator of the Scientifc Area of Probability & Statistics of Instituto Superior Técnico.

Seminars

SPA 2023 : 43rd Conference on Stochastic Processes and their Applications (24/07/2023) Lisboa, Portugal

ECQT 2023 - IV European Conference on Queueing Theory (19/07/2023) Lisboa, Portugal