Şerban Mihalache

PhD Student, Teaching Assistant, Research Assistant, MSEE, Faculty of Electronics, Telecommunications and Information Technology,
University “Politehnica” of Bucharest

Email: serban.mihalache@upb.ro
Office: B030, Leu Campus – Blvd. Iuliu Maniu No. 1-3, Bucharest 061071, Romania
Tel: +4021 402 4688


Last update: October 2019

  • Scientific Activity
    • National research projects
    • Member in organizing program commitees
    • Reviewer for international conferences
    • Prizes
    • Affiliation to scientific community
  • List of publications
    • Journal and conference papers
    • PhD Thesis
    • MSEE Thesis
    • BSEE Thesis

Research Interests

  • Audio Signal Analysis, Synthesis and Processing;
  • Machine Learning (Deep Neural Networks, Genetic Algorithms, Explainable AI);
  • Speech-based Recognition of Affective and Psychological State;
  • Speech-based Detection of Psychological Stress;
  • Deceptive Speech Detection;
  • Spoken Language Technology (Automatic Speech/Speaker Recognition);
  • Analog Circuit and System Design.

Degrees and Professional Experience

Degrees

  • Master of Science in Electronic Engineering (MSEE); specialization in Microsystems (July 2017); University “Politehnica” of Bucharest, Romania, Faculty of Electronics, Telecommunications and Information Technology.
  • Bachelor of Science in Electronic Engineering (BSEE); major in Electronics Engineering, Telecommunications and Information Technologies, specialization in Microelectronics (July 2015); University “Politehnica” of Bucharest, Romania, Faculty of Electronics, Telecommunications and Information Technology.
  • Baccalaureate Degree (June 2011); “Sfântul Sava” National College (Saint Sava National College), Bucharest, Romania.

Professional experience

  • Teaching Assistant (October 2017 – present) at the Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Lab assistant for Digital Signal Processing, Advanced Digital Signal Processing, Microprocessor Architectures and Microcontrollers. Tutorial assistant for Analog Integrated Circuits.
  • Research Assistant (May 2017 – present) at the University “Politehnica” of Bucharest, Romania. Research on Speech Signal Analysis and Processing Techniques in Forensic Speech.
  • Analog Design Engineer (October 2015 – October 2017) at Microchip Technology Inc., Bucharest, Romania. Analog circuit and system design and simulation for High Voltage Power Management Integrated Circuits (DC-DC Buck Converters – Non-synchronous), within the Analog, Power and Interface Division (APID). Layout development and verification. Integrated circuit testing and validation.
  • Analog Design Intern (February 2013 – October 2015) at Microchip Technology Inc., Bucharest, Romania. Analog circuit and system design and simulation for Power Management Integrated Circuits (DC-DC Buck Converters – Non-synchronous), within the Analog, Power and Interface Division (APID). Layout development and verification. Integrated circuit testing and validation.

Academic Activity

Teaching

All my teaching activity takes place at the Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest.

Undergraduate curricula

  • Advanced Techniques in Digital Signal Processing, laboratory (2016 – present); supervisor: Prof. Dragoș Burileanu.
  • Digital Signal Processing, laboratory (2016 – present); supervisor: Prof. Dragoș Burileanu.
  • Microprocessor Architectures, laboratory (2017 – present); supervisor: Prof. Corneliu Burileanu.
  • Microcontrollers, laboratory (2017 – present); supervisor: Prof. Corneliu Burileanu.
  • Analog Integrated Circuits, laboratory (2016 – 2017) and tutorials (2016 – present); supervisors: Prof. Cosmin Popa and Prof. Claudius Dan.

Undergraduate student supervision

2018-2019

  • Georgiana-Elena Botezatu, “Multi-effect digital pedal for electric guitar”, Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Academic co-supervisor: Prof. Dragoș Burileanu.
  • Tudor-Nicolae Datcu, “Intelligent system for multimodal data acquisition and household system control”, Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Academic co-supervisor: Prof. Dragoș Burileanu.
  • Alexandru-Nicușor Firuți, “Software for daily physical activity recognition using movement sensors”, Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Academic co-supervisor: Prof. Dragoș Burileanu.

2017-2018

  • Cosmin-Valeriu Retegan, “Software for the automatic transcription of musical content from audio recordings”, Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Academic co-supervisor: Prof. Dragoș Burileanu.
  • Andrei Iulian Gîrd, “Real-time automatic identification and reconstruction techniques of musical content from audio signals”, Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Academic co-supervisor: Prof. Dragoș Burileanu.

2016-2017

  • Andreea Maria Florea, “3D Scanner with Infrared Optical Sensing”, Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Primary academic supervisor: Prof. Dragoș Burileanu.
  • Claudia Andreea Nedelcu, “Digital processing techniques for automatic music track separation”, Faculty of Electronics, Telecommunications and Information Technology, University “Politehnica” of Bucharest, Romania. Primary academic supervisor: Prof. Dragoș Burileanu.

Scientific Activity

National research projects

  • 2017 – present: research assistant, project PN-III-P2-2.1-SOL-2016-02-0002, agreement 2SOL/2017, funded by the Romanian Government through UEFISCDI: Intelligent Systems for Video and Audio Analysis – Technologies and Innovative Video Systems for Person Re-identification and Analysis of Dissimulated Behavior (SPIA-VA), 2017-2020, [LINK].

Member in organizing program committees

  • SpeD 2019 – the 10th International Conference on Speech Technology and Human-Computer Dialogue, Timişoara, Romania, October 10-12, 2019.

Reviewer for international conferences

  • SpeD 2019 – the 10th International Conference on Speech Technology and Human-Computer Dialogue, Timişoara, Romania, October 10-12, 2019.

Prizes

2016

  • Third Prize, in the IEEE Region 8 Student Paper Contest, Limassol, Cyprus, paper: “Current-mode Capacitance Multiplier with Reduced Parasitic Elements”, co-author: Florin-Silviu Dumitru.

2015

  • Best Student Paper Award, at the IEEE Romania 25th Anniversary Colloquium, paper: “Current-mode Capacitance Multiplier with Reduced Parasitic Elements”, co-author: Florin-Silviu Dumitru.
  • First Prize, in the “Tudor Tănăsescu” National Electronics Competition (Analog Integrated Circuits section), Bucharest, Romania.
  • Best Student Paper Award, at the 38th International Semiconductor Conference (CAS), Sinaia, Romania, paper: “Automated Cooling Control System through Peltier Effect and High Efficiency Control using a DC-DC Buck Converter”, co-authors: Irina Flamaropol, Florin-Silviu Dumitru, Lidia Dobrescu, Dragoș Dobrescu.

2014

  • First Prize, in the National stage of the Robochallenge National Robotics Competition, Bucharest, Romania, Academic section, project: COX (Line Follower Robot), team members: Florin-Silviu Dumitru, Ioana Antoche, Andrei Poenaru.

Affiliation to scientific community

  • Member of SpeeD Laboratory, 2015 – present;
  • Member of the Institute of Electrical and Electronic Engineers (IEEE), Jan 2013 – present;
  • Member of several Institute of Electrical and Electronic Engineers (IEEE) Societies: Signal Processing Society (SPS), Systems, Man and Cybernetics Society (SMCS), YP (Young Professionals), Jan 2013 – present.

List of publications

Journal papers

2018

  • Gheorghe Pop, Dragoș Burileanu, Şerban Mihalache, “An Evaluative ENF-Based Framework for Forensic Authentication of Digital Audio Recordings,” in the Proceedings of the Romanian Academy Series A – Mathematics, Physics, Technical Sciences, Information Science, Publishing House of the Romanian Academy, Bucharest, Romania, 2018, Vol. 19, Issue 4, pp. 605-612, ISSN: 1454-9069 (Q2, IF: 1.752).

2017

  • Șerban Mihalache, Florin-Silviu Dumitru, Adriana Florescu, Sever Viorel Pașca, “Dithering Options for Integrated Relaxation Oscillators,” in Revue Roumaine des Sciences Techniques – Serie Electrotechnique et Energetique (RRST), Bucharest, Romania, 2017, Vol. 62, 1, pp. 61-67, ISSN 0035-4066 (Q3, IF: 0.524).

Conference papers

2019

  • Șerban Mihalache, Gheorghe Pop, Dragoș Burileanu, “Introducing the RODeCAR Database for Deceptive Speech Detection,” in the Proceedings of the 10th International Conference on Speech Technology and Human-Computer Dialogue (SpeD), Timișoara, Romania, 2019, ISBN: 978-1-7281-0983-1.
  • Șerban Mihalache, Dragoș Burileanu, Gheorghe Pop, Corneliu, Burileanu “Modulation-based Speech Emotion Recognition with Reconstruction Error Feature Expansion,” in the Proceedings of the 10th International Conference on Speech Technology and Human-Computer Dialogue (SpeD), Timișoara, Romania, 2019, ISBN: 978-1-7281-0983-1.
  • Gheorghe Pop, Șerban Mihalache, Dragoș Burileanu, “Forensic Recognition of Narrowband AMR Signals,” in the Proceedings of the 10th International Conference on Speech Technology and Human-Computer Dialogue (SpeD), Timișoara, Romania, 2019, ISBN: 978-1-7281-0983-1.

2018

  • Gheorghe Pop, Șerban Mihalache, Dragoș Burileanu, “Forensic Speaker Identification Using Speech Quality Data,” in the Proceedings of the 12th International Conference on Communications (COMM), Bucharest, Romania, 2018, pp. 509-512, ISBN: 978-1-5386-2350-3.

2017

  • Florin-Silviu Dumitru, Șerban Mihalache, Marius Enăchescu, “OPAMP’s finite gain and slew rate impact on a 16-bit ΣΔ ADC performance: A case study,” in the Proceedings of the 40th International Semiconductor Conference (CAS), Sinaia, Romania, 2017, pp. 161-164, ISBN 978-1-5090-3985-2.

2016

  • Șerban Mihalache, Florin-Silviu Dumitru, “Current-Mode Capacitance Multiplier with Reduced Parasitic Elements,” in the Proceedings of the 18th Mediterranean Electrotechnical Conference (MELECON), Limassol, Cyprus, 2016, pp. 1-6, ISBN 978-1-5090-0058-6.

2015

  • Florin-Silviu Dumitru, Șerban Mihalache, Gheorghe Brezeanu, “A CMOS Resistorless Bandgap Reference with Minimized Current Consumption,” in the Proceedings of the 38th International Semiconductor Conference (CAS), Sinaia, Romania, 2015, pp. 289-292, ISBN 978-1-4799-8862-4.
  • Șerban Mihalache, Irina Flamaropol, Florin-Silviu Dumitru, Lidia Dobrescu, Dragoș Dobrescu, “Automated Cooling Control System through Peltier Effect and High Efficiency Control using a DC-DC Buck Converter,” in the Proceedings of the 38th International Semiconductor Conference (CAS), Sinaia, Romania, 2015, pp. 281-284, ISBN 978-1-4799-8862-4.

PhD thesis (WIP)

Șerban Mihalache, “Speech Signal Analysis and Processing Techniques in Forensic Speech”, PhD Thesis, University “Politehnica” of Bucharest, July 2021 (expected date) (academic supervisor: Prof. Corneliu Burileanu; guidance committee: Prof. Dragoș Burileanu, Prof. Horia Cucu, Prof. Ruxandra Țapu).

MSEE thesis

Șerban Mihalache, “Tunnel Diode Based Bi-tangent Oscillator”, MSEE Thesis, University “Politehnica” of Bucharest, July 2017 (academic supervisors: Prof. Gheorghe Brezeanu, Dr. Marius Budăeș).

BSEE thesis

Șerban Mihalache, “Current-mode Capacitance Multiplier with Reduced Parasitic Elements”, BSEE Thesis, University “Politehnica” of Bucharest, July 2015 (academic supervisors: Prof. Gheorghe Brezeanu, Dr. Marius Budăeș).