Valentin Radu


University of Edinburgh
Informatics Forum 1.17
10 Crichton Street
Edinburgh EH8 9AB, UK

Phone: +44 131 650 6020

About me

Update: I finished my PhD and now I'm Research Associate in the Bonseyes project. My new homepage here.

I am a PhD student at the University of Edinburgh since July 2012, under the supervision of Dr. Mahesh K. Marina. My research is sponsored by SICSA through the SICSA PhD Scholarship grant. I am member of the Institute for Computing Systems Architecture (ICSA) and of the Wireless and Mobile Networking Group (WiMo).

In 2010 I graduated with a BSc in Computer Science from the Polytechnic University of Bucharest and in 2011 I obtained a MSc from the University of Edinburgh.

My research interests are:
  • machine learning for context detection on mobile devices
  • energy efficient mobile sensing, and mobile computing
  • positioning and tracking
We have been awarded a Google Internet of Things (IoT) Technology Research Award to expand our work on indoor localisation.

I co-organise the SNACK (Synergyzing Non-Aligned Centres of Knowledge) Club in the School of Informatics, though sadly in recent months we're in a hibernation state with the organisers being busy with other commitements. If you want to help organise these events please get in touch.

I am involved in the Edinburgh IoT Initiative developing a LoRa wide area network as a platform for research and city pilots.


  • [UbiComp'16] Towards Multimodal Deep Learning for Activity Recognition on Mobile Devices
    Valentin Radu, Nicholas D. Lane, Sourav Bhattacharya, Cecilia Mascolo, Mahesh K. Marina, Fahim Kawsar
    In the Joint Conference on Pervasive and Ubiquitous Computing (UbiComp/ISWC'16) Adjunct, ACM, September 2016, Heidelberg, Germany.
    [DOI] [PDF] [bib]
  • [ATC'15] Impact of Indoor-Outdoor Context on Crowdsourcing based Mobile Coverage Analysis
    Mahesh K. Marina, Valentin Radu, Konstantinos Balampekos
    In All Things Cellular Workshop (ATC) collocated with SIGCOMM'15, ACM, August 2015, London, UK.
    [DOI] [PDF] [bib]
  • [SenSys'14] A Semi-Supervised Learning Approach for Robust Indoor-Outdoor Detection with Smartphones
    Valentin Radu, Panagiota Katsikouli, Rik Sarkar and Mahesh K. Marina
    In the Conference on Embedded Networked Sensor Systems (SenSys), ACM, November 2014, Memphis, USA.
    [DOI] [PDF] [bib]
  • [MobiCom'14] Poster: Am I Indoor or Outdoor?
    Valentin Radu, Panagiota Katsikouli, Rik Sarkar, Mahesh K. Marina
    In the 20th Annual International Conference on Mobile Computing and Networking (MobiCom), ACM, September 2014, Hawaii, USA.
    [DOI] [PDF] [bib] [poster]
  • [IPIN'13] HiMLoc: Indoor Smartphone Localization via Activity Aware Pedestrian Dead Reckoning with Selective Crowdsourced WiFi Fingerprinting - Nominated for Best Paper Award
    Valentin Radu, Mahesh K. Marina
    In the 4th International Conference on Indoor Positioning and Indoor Navigation (IPIN), IEEE, October 2013, Belfort-Montbeliard, France.
    [DOI] [PDF] [bib]
  • [CNSM'13] Pazl: A Mobile Crowdsensing based Indoor WiFi Monitoring System
    Valentin Radu, Lito Kriara, Mahesh K. Marina
    In the 9th International Conference on Network and Service Management (CNSM), IEEE, October 2013, Zurich, Switzerland.
    [DOI] [PDF] [bib] [Presentation]
  • [SICSA'13] Poster: Enhancing mobile crowd-sensing for indoor space characterization (WiFi monitoring)
    Valentin Radu
    In the 5th Annual SICSA PhD Conference, June 2013, Stirling, UK.
  • [MobiSys'12] Poster: A hybrid approach for indoor mobile phone localization
    Valentin Radu, Jiwei Li, Lito Kriara, Mahesh K. Marina, Richard Mortier
    In the 10th International Conference on Mobile Systems, Applications, and Services (MobiSys), ACM, June 2012, Lake District, UK.
    [DOI] [bib] [poster]

Other activities

  • TPC and organizing committee for IQ2S Workshop in PerCom 2015.
  • Speaker at the SCONE meeting, Edinburgh 2014, [Slides]
  • Presented at the SICSA PhD Conference 2014, St. Andrews, [Slides] - Best Student Presentation
  • Member of the 5th Annual SICSA PhD Conference 2013 Programme Committee
  • Speaker at the SCONE meeting, Glasgow 2011, [Slides]
  • Teaching assistant for Computer Networking (INFR11049) in 2012, 2013 and Distributed Systems (INFR11022) 2014, 2015.
  • Founder DeepContext