I perform research on computer systems at the intersection of hardware architectures, network technologies, and systems software. I aim to intersect fundamental research and top-notch engineering to make reliable, high-performance, and efficient computer systems at all scales, from number-crunching workstations to ultra-precise tiny embedded devices.
Topics of current research interests include:
Topics of current research interests include:
- Taming next-generation heterogeneous architectures (characterizing and mixing many-core, GPUs, FPGAs)
- Real-time networking
- Runtime verification and anomaly detection in modern embedded systems
- Embedded systems in industrial applications
- Tools for education and dissemination of computing technologies
Selected publications list
People don't realize the limitations of 200 words, and the way they get chiselled down into a song that has to be sung. |
Journals
- A. Saavedra, H. Lehnert, C. Hernández, G. Carvajal, and M. Figueroa, “Mining discriminative k-mers in DNA sequences using sketches and hardware acceleration,” IEEE Access, vol. 8, 2020.
- H. Garcés, A. Fuentes, P. Reszka, and G. Carvajal, "Analysis of Soot Propensity in Combustion Processes Using Optical Sensors and Video Magnification", in MDPI Sensors, 18(5), 2018
- G. Carvajal, M. Salem, N. Bennan, S. Fischmeister, "Enabling Rapid Construction of Arrival Curves From Execution Traces," in IEEE Design & Test, 2018, (Early Access).
- G. Carvajal, L. Araneda, A. Wolf, M. Figueroa, S. Fischmeister, "Integrating Dynamic-TDMA Communication Channels into COTS Ethernet Networks," in IEEE Transactions on Industrial Informatics, vol. 12, no. 5, pp. 1806-1816, Oct. 2016.
- G. Carvajal and M. Figueroa, “Model, analysis, and evaluation of the effects of analog VLSI arithmetic on linear subspace-based image recognition,” Neural Networks, vol. 55, pp. 72–82, 2014.
- G. Carvajal, C. Wu, and S. Fischmeister, “Evaluation of communication architectures for switched real-time Ethernet,” IEEE Transactions on Computers , vol. 63, no. 1, pp. 218–229, 2014.
- G. Carvajal, M. Figueroa, D. Sbarbaro, and W. Valenzuela, “Analysis and compensation of the effects of analog-VLSI arithmetic on the LMS algorithm,” IEEE Transactions on Neural Networks, vol. 22, no. 7, pp. 1046–1060, 2011.
- W. Valenzuela, G. Carvajal, and M. Figueroa, “Blind source separation in mixed-signal VLSI,” Neural Network World, vol. 19, no. 5, pp. 641–656, 2009.
Conference Proceedings
- R. Rojas, C. Silva, S. Kuleshov, G. Mikenberg, G. Carvajal, H. Hakobyan, V. Arredondo, and J. Gonzalez, “Proposal of a charge monitoring board for thin gap chamber detectors based on DRS4 chip,” in 2020 IEEE International Conference on Industrial Technology (ICIT), 2020, pp. 571–575.
- N. Hernández, J. Rebolledo, J. Torres, G. Carvajal, and F. Vargas, “Design of an experimental platform for the automation of the goalkeeper of a foosball table,” in 2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), 2019.
- A. Rodríguez, A. Diomedi, J. Portilla, H. Garcés, and G. Carvajal, “Automatic classification of soot propensity in flames using image processing and machine learning,” in IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), 2019.
- M. Salem, G. Carvajal, T. Liu, and S. Fischmeister, “Assessing the robustness of arrival curves models for real-time systems,” in Proc. of the Conf. on Formal Modeling and Analysis of Timed Systems (FORMATS), Aug 2019, pp. 23–40.
- Gonzalez, A.; Zuniga, M.D.; Nikulin, C.; Carvajal, G.; Cardenas, et al., 'Accurate Fire Detection through Fully Convolutional Network', IET Conference Proceedings, 2017.
- A. Azim, G. Carvajal, R. Pelizzoni, and S. Fischmeister, “Generation of communication schedules for multi-mode distributed real-time applications,” in Proc. of the Design, Test, and Automation in Europe Conference (DATE), Mar. 2014.
- G. Carvajal, M. Figueroa, R. Trausmuth, and S. Fischmeister, “Atacama: an open FPGA-based platform for mixed-criticality communication in multi-segmented Ethernet networks,” in Proc. of the IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM), Apr. 2013.
- G. Carvajal and S. Fischmeister, “An open platform for mixed-criticality real-time Ethernet,” in Proc. of the Design, Test, and Automation in Europe Conference (DATE), Mar. 2013.
- J. Moreno, R. Redlich, G. Carvajal, and M. Figueroa, “Hardware-based computation of the roughness index for infrared imagers,” in VIII Southern Conference on Programmable Logic (SPL), Mar. 2012, 1–6 (Best Paper Award).
- R. Redlich, G. Carvajal, and M. Figueroa, “An FPGA-based real-time nonuniformity correction system for infrared focal plane arrays,” in Proc. of the 22nd IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP), Sep. 2011, pp. 202–208.
- G. Carvajal and S. Fischmeister, “A TDMA Ethernet switch for dynamic real-time communication,” in Proc. of the IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM), May 2010, pp. 119–126.
- G. Carvajal, M. Figueroa, and W. Valenzuela, “Image recognition in analog VLSI with on-chip learning,” Springer-Verlag Lecture Notes in Computer Science , no. 3697, pp. 429–438, Sep. 2009.
- W. Valenzuela, G. Carvajal, and M. Figueroa, “Blind source separation in mixed-signal VLSI using the Infomax algorithm,” Springer-Verlag Lecture Notes in Computer Science, no. 5164, pp. 208–217, Sep. 2008.
- G. Carvajal, W. Valenzuela, and M. Figueroa, “Subspace-based face recognition in analog VLSI,” in Advances in Neural Information Processing Systems 20, 2007, pp. 133–140.
- G. Carvajal, M. Figueroa, and S. Bridges, “Effects of analog-VLSI hardware on the performance of the LMS algorithm,” Springer-Verlag Lecture Notes in Computer Science, no. 4131, pp. 963–973, Sep. 2006.
- M. Figueroa, E. Matamala, G. Carvajal, and S. Bridges, “Adaptive signal processing in mixed-signal VLSI with anti-hebbian learning,” in Proc. of the 2006 IEEE Computer Society Annual Symposium on VLSI, 2006, pp. 133–140.
- D. Sbarbaro and G. Carvajal, “Supervision of control valves in flotation circuits based on artificial neural networks,” Springer-Verlag Lecture Notes in Computer Science, no. 3697, pp. 451–456, Sep. 2005.
Other activities
Tutorials
- G. Carvajal and S. Fischmeister, “Atacama: an open research platform for mixed-criticality real-time switched Ethernet,” in Cyber-Physical Systems (CPS) Week , Apr. 2013.
Selected Demonstration Sessions
- D. Arney, S. Fischmeister, J. Goldman, G. Carvajal, and R. Trausmuth, “Plug-and-play for networked medical devices: a case study on Patient Controlled Analgesia,” in Center for Integration of Medicine and Innovative Technology - CIMIT Innovation Congress, Oct. 2008.
- G. Carvajal and S. Fischmeister, “An open experimental platform for real-time Ethernet,” in Real-Time Systems Symposium, Dec. 2012
- G. Carvajal, S. Fischmeister, M. Figueroa, and R. Trausmuth, “Atacama: an open FPGA-based platform for mixed-criticality communication in multi-segmented Ethernet networks,” in IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM) - Demo Night, May 2013.
- G. Carvajal and S. Fischmeister, “Atacama: an open experimental platform for mixed-criticality networking on top of Ethernet,” in Real-Time Systems Symposium , Dec. 2013.
- G. Carvajal, “Hardware-in-the-loop (HIL) technology for advanced debugging and testing: a case study on an Scalable Deposit Module,” in Report on Engage Grants between Univerisity of Waterloo and NCR Corporation, Dec. 2013.