member of Technology, Engineering, Science and Mathematics (TICMA) Research Group Researcher (member)
selected publications academic article Risk-averse stochastic dual dynamic programming approach for the operation of a hydro-dominated power system in the presence of wind uncertainty 2020-2-1 Managing Response Time Tails by Sharding 2019-3-1 Holistic Workload Scaling: A New Approach to Compute Acceleration in the Cloud 2018-1-1 Impacto de las fusiones y adquisiciones en la eficiencia de la banca en Colombia 2018-1-1 Line: Evaluating Software Applications in Unreliable Environments 2017-9-1 sPARE: Partial Replication for Multi-tier Applications in the Cloud 2017-12-8 Cutting Latency Tail: Analyzing and Validating Replication without Canceling 2017-11-1 Algorithm 972: JMarkov: An integrated framework for Markov chain modeling 2017-1-1 Evaluating replication for parallel jobs: An efficient approach 2016-8-1 Beyond the mean in fork-join queues: Efficient approximation for response-time tails 2015-9-1 QD-AMVA: Evaluating systems with queue-dependent service requirements 2015-9-1 Estimating computational requirements in multi-threaded applications 2015-3-1 Quality-of-service in cloud computing: modeling techniques and their applications 2014-1-1 A fast newton's iteration for M/G/1-type and GI/M/1-type Markov Chains 2012-11-1 The effect of partial conversion and fiber delay lines in an OBS switch with a large number of wavelengths 2011-2-1 The M/G/1-type markov chain with restricted transitions and its application to queues with batch arrivals 2011-1-1 Markovian approximations for a grid computing network with a ring structure 2010-7-1 Mean field calculation for optical grid dimensioning 2010-6-1 A mean field model for an optical switch with a large number of wavelengths and centralized partial conversion 2010-11-1 Efficiency analysis in electricity transmission utilities 2009-7-6 Wavelength allocation in an optical switch with a fiber delay line buffer and limited-range wavelength conversion 2009-5-1 chapter Los nuevos caminos de la Revolución 4.0 2020-1-1 Assessing the impact of wind variability on the long-term operation of a hydro-dominated system. 1-6. 2018-1-16 QoS assessment and SLA management. 35-46. 2017-1-1 conference paper Assessing the impact of concurrent replication with canceling in Parallel Jobs. 31-40. 2015-1-1 Quasi-birth-and-death processes with restricted transitions and its applications. 126-141. 2011-2-1 conference poster Differential approximation and sprinting for multi-priority big data engines. 202-214. 2019-12-9 SmallTail: Scaling cores and probabilistic cloning requests for web systems. 31-40. 2018-10-18 Dual Scaling VMs and Queries: Cost-Effective Latency Curtailment. 988-998. 2017-7-13 On the latency-accuracy tradeoff in approximate MapReduce jobs 2017-10-2 Power of redundancy: Designing partial replication for multi-tier applications 2017-10-2 Defeating variability in cloud applications by multi-tier workload redundancy. 496-497. 2016-9-6 Variability-aware request replication for latency curtailment 2016-7-27 Tackling latency via replication in distributed systems. 197-208. 2016-3-12 Quantifying the Impact of Replication on the Quality-of-Service in Cloud Databases. 286-297. 2016-10-12 Planning distribution primary feeders for smart-grid operation via network flow analysis 2015-9-30 Filling the gap: A tool to automate parameter estimation for software performance models. 31-32. 2015-9-1 Planning open and closed-loop feeders with efficiency analysis 2015-8-31 Enhancing reliability and response times via replication in computing clusters. 1355-1363. 2015-8-21 DICE: Quality-driven development of data-intensive cloud applications. 78-83. 2015-1-1 Evaluating the effectiveness of replication for tail-tolerance. 443-452. 2015-1-1 Model-driven design of cloud applications with quality-of-service guarantees: The modaclouds approach, MICAS Tutorial. 3-10. 2015-1-1 Towards a DevOps approach for software quality engineering. 5-10. 2015-1-1 Assessing SLA compliance from Palladio component models. 409-416. 2014-1-1 An offline demand estimation method for multi-threaded applications. 21-30. 2013-12-1 Dynamic multi-objective planning for distribution systems with distributed generation 2013-12-1 Impact of Dampening Demand Variability in a Production/Inventory System with Multiple Retailers. 227-250. 2013-1-1 Dimensioning an OBS switch with partial wavelength conversion and fiber delay lines via a mean field model. 2651-2655. 2009-10-12 jPhase: An object-oriented tool for modeling phase-type distributions 2006-12-1 working paper Chisel: Reshaping Queries to Trim Latency in Key-Value Stores 2019-9-13 Exploiting restricted transitions in Quasi-Birth-and-Death processes. 123-132. 2009-10-23
principal investigator on Approximate Computing 2018-01-01 - 2019-01-01 Design of Data Intensive Software 2018-01-01 - 2019-01-01 Design of web services 2018-01-01 - 2019-01-01 Energy system planning 2018-01-01 - 2019-01-01 Data Analytics for public contracting 2018-01-01 - 2018-07-12
co-principal investigator on Social Laboratory: social innovation strategies, experimental technologies and social appropriation of knowledge for the promotion of the formalization and social and productive inclusion of different economic agents. 2018-10-01 - 2022-09-30
CVLAC http://scienti.colciencias.gov.co:8081/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000479144