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Dr. Ruairí de Fréin B.E., PhD, dip ABRSM, ABRSM LRSM

Title:

Marie Curie Fellow, Amadeus SAS Sophia Antipolis, France

School/ Department:

School of Science & Computing - Walton Research Institute

Room Name/ Num:

R2 ArcLabs Research and Innovation Centre.

Campus:

Carriganore

My Blog/Website:

Click Here to View

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My Biography

Beathaisnéis: Rugadh agus tógadh Ruairí de Fréin i mBaile Átha Cliath.

Ghnóthaigh Ruairí na céimeanna B.E. san Innealtóireacht Leictreach agus Dioplóma Iarchéime “Licentiate of the Royal Schools of Music” (LRSM) sa Cheol ó Ollscoil na hÉireann, Baile Átha Cliath, agus ón mBord Comhlachaithe na Scoileanna Ríoga Ceoil (The Associated Board of the Royal Schools of Music) i 2004 agus 2012.

Tá céim dochtúireachta bainte amach aige i “Signal Processing” leis an teideal “Adapting Bases Using the Synchronized Short Time Fourier Transform and Non-Negative Matrix Factorization” faoi stiúir an t-Ollamh Scott T. Rickard (matamaticeoir).

Chaith sé tréimhse i mbun taighde agus ag stiúradh mic léinn dochtúireachta agus máistreachta in Institiúid Teicneolaíochta Phort Láirge (WIT). Ghnóthaigh Ruairí deontas taighde ó Fondúireacht Eolaíochta Éireann (Science Foundation Ireland) chun taisteal go dtí Universidade Federal do Paraná i Brazil. I 2014 chaith sé tréimhse mar “Eolaí ar Chuairt” Marie Skłodowska-Curie, le Amadeus SAS i Nice sa Fhrainc. Tá sé ina Chomhalta Taighde Marie Skłodowska-Curie d’ollscoil KTH Royal Institute of Technology sa tSualainn anois.

Tá moll mór de pháipéir léannta foilsithe ar a thaighde innealtóireachta i mBéarla go nuige seo. Tá sé mar bhall de Chumann na nInnealtóirí agus de roinnt Institiúidí eile.

Is amhránaí traidisiúnta agus clasaiceach é Ruairí agus is ball é den ghrúpa amhránaíochta traidisiúnta iomráiteach “Concordia”. Bhí sé páirteach i riar mhaith dlúthdhioscaí mar amhránaí agus mar thionlacaí chomh maith le bheith gníomhach i gceolchoirmeacha san Eoraip agus níos faide i gcéin, mar shampla leis an ngrúpa 'the Keynotes', i “Will Ye Go To Flanders?” le Concordia i “Passetyme with Goode Companye” agus ceoldráma “The Invader” le Eric Sweeney.

Réimsí Taighde: le teacht go luath!

R-phost: ruairi (ag) kth.se

Leagan Béarla: Dr. de Fréin received his B.E. (first class honours) in University College Dublin, Ireland in 2004 and his PhD from the Complex and Adaptive Systems Laboratory and School of Electrical, Electronic and Communications Engineering, University College Dublin, Ireland in 2009/10 under the supervision of Prof. Scott T. Rickard.

Dr. de Fréin received a Marie Curie Visiting Fellowship and moved to Amadeus SAS Sophia Antipolis, France in April 2014.

  • Apr. 2014 - present: Dr. de Fréin is funded by the SOLAS Marie Curie IAPP. Working in close cooperation with TSSG, Waterford, ETH Zurich, KTH Stockholm, EMC and Amadeus SAS Sophia Antipolis, Dr. de Fréin and the consortium partners will make significant contributions to the state-of-the-art in the increasingly important area of resource management for cloud computing. SOLAS will develop will Software Defined Networking solutions targeting data centre environments that facilitate application-controlled injection of data plane functionality, that are engineering for scalability, and that facilitate coordinated management across data centres.

Dr. de Fréin received a Science Foundation Ireland International Strategic Cooperation Award Programme award and moved to Universidade Federal do Paraná, Brazil in January 2014.

Dr. de Fréin moved to TSSG in October 2009 and is currently a Research Fellow:

  • Oct. 2009-Dec. 2011: Dr. de Fréin was funded by the Science Foundation Ireland Federated, Autonomic Management of End-to-end Communications Services (FAME), Strategic Research Cluster. As Scenario A Leader, one of four FAME scenario leaders, Dr. de Fréin managed 4 Postdocs and 6 PhD students and therefore had responsibility for the publications and demonstrator development of 1/4 of the project. Dr. de Fréin was responsible for collaboration and integrated workplans with IBM-Tivoli and Alcatel Lucent Ireland and UK. Dr. de Fréin coordinated the preparation of the Scenario A demo at FAME Mid-term review.

  • Jan.-Apr. 2011: Dr. de Fréin successfully applied for a Science Foundation Ireland Technology Innovation Development Award Training TIDA (2.5K eur) in 2011.

  • Dec. 2010 - Mar. 2011: Dr. de Fréin successfully applied for an Alcatel Lucent Open Innovation Boot Camp award (2.5K euro) in 2011 to develop a business plan for IP he developed as part of FAME.

  • Mar. 2011 - Jun. 2012: Dr. de Fréin successfully applied for a SFI TIDA Feasibility Award with Dr Willie Donnelly (100K eur), to build a prototype femtocell monitoring solution, managing a team of 1 developer and 1 Postdoc: "Developing a prototype apparatus for scalable adaptive, distributed and timely in-network monitoring".

While with University College Dublin

Academic Supervision:

  • Graduated Msc by Research (2010--12): Biao Xu, co-supervision with Dr Ó Foghlú

  • Graduated PhD (2009--13): Cristian Olariu co-supervision with Prof. Liam Murphy (UCD).

  • Graduated MSc taught Dissertation (2011--12): Duofeng Liang, sole supervisor.

Keywords:

Machine Learning, Network Monitoring, Nonnegative Matrix Factorization, Network Monitoring, Blind Source Separation, Time-Frequency Analysis, Sparse Signal Processing, Data Center Optimization, Cloud Computing, Software Defined Networking (SDN).

 

 

Biography

Ruairí de Fréin received a Bachelors degree in Electronic Engineering from University College Dublin, Ireland, in 2004. He received his Ph.D., which he completed with the Sparse Signal Processing Group in the Complex and Adaptive Systems Laboratory in University College Dublin, Ireland, in 2010, under the supervision of Dr. Scott Rickard. His research interests include Sparse Signal Processing, Blind Source Separation, Non-negative Matrix Factorization and Time-Frequency Analysis.

He is currently a postdoctoral researcher in the Telecommunications and Software Systems Group in Waterford Institute of Technology and is funded by Science Foundation Ireland as part of the FAME ("Federated, Autonomic Management of End-to-end communications services") strategic research cluster and by a Technology Innovation Development Award. 

In the past few years he has developed algorithms for Network Management and Self-Organization strategies for small cell networks, and monitoring techniques for Internet Protocol TeleVision (IPTV) in collaboration with IBM Tivoli and Alcatel Lucent.

Research

Dr. de Fréin for the past several years has focused on Scalable Distributed Network Monitoring Methods, Formal Concept Analysis, Independent Component Analysis, Machine Learning and the application of Time-Frequency methods and sparse Signal Processing for the Blind Separation and Localization of more sources than sensors.

 

Post Doctoral Researcher

TSSG
2009 – Present (4 years)

 

SFI Technology Innovation Development Award, Feasibility
Science Foundation Ireland
April 2012 – April 2013 (1 year 1 month)Telecommunications Software & Systems Grounp, WIT, Ireland
Exploitation of IP: Developing a prototype apparatus for scalable adaptive, distributed and timely in-network monitoring.

 

TIDA - Technology Innovation Development Feasibility Study Training SFI
Science Foundation Ireland
January 2012 – April 2012 (4 months)
The course consists of the following modules:

Introduction to Technology Entrepreneurship
Market Feasibility & Exploratory Research
Managing Legal Aspects of Start-Ups
Technology Assessment & Commercialisation Opportunity
New Product Development and Innovation
Venture Capital & Funding Models
Finance and Cash Flow
Intellectual Property, Trade Marks and Copyright
Sustainable Competitive Advantage and Positioning
Technology Sales
Marketing, Branding and Bringing it all Together
From Lab to Product: Elevator Pitches & Competition

 

Alcatel Lucent Open Innovation Boot Camp
Alcatel-Lucent
November 2011 – March 2012 (5 months)Bell Labs, Dublin, Ireland
Developed business plan detailing road map for patent/intellectual property I developed as part of the SFI-funded Federated, Autonomic Management of End-to-end communication services (FAME) Strategic Research Cluster (SRC).

One of three academic entrants which were picked from universities in Ireland and the UK.

Final pitching contest panel consisted of Alcatel Lucent UK and Ireland CEO and Venture Capitalists.

 

Researcher
National Rehabilitation hospital
June 2003 – September 2004 (1 year 4 months)National Rehabilitation Hospital, Dublin, Ireland
Independent research project at University College Dublin. Developed non-invasive methods for investigation of upper body pressure distribution and curvature of the spine for patients placed on spinal boards. Used Visual C++ to design real-time application for measuring and displaying data. Project results were used to evaluate the effectiveness of an intermediary inflatable raft proposed for introduction to the Irish health sector.

 

Recent Publications:

Ruairí de Fréin, “Learning and Storing the Parts of Objects: IMF,” in IEEE International Workshop on Machine Learning for Signal Processing, 2014, doi:10.1109/ICDSP.2014.6900690.

bibtex

Ruairí de Fréin, “Quantized Nonnegative Matrix Factorization,” in Digital Signal Processing (DSP), 2014 19th International Conference on, 2014, 377–82, doi:10.1109/ICDSP.2014.6900690.

bibtex

Ruairí de Fréin, “Multilayered, Blocked Formal Concept Analyses for Adaptive Image Compression,” in Formal Concept Analysis, ed. Cynthia Vera Glodeanu, Mehdi Kaytoue, and Christian Sacarea, vol. 8478, Lecture Notes in Computer Science (Springer International Publishing, 2014), 251–67, doi:10.1007/978-3-319-07248-7_18.

bibtex

Ruairí de Fréin et al., “Integration of QoS Metrics, Rules and Semantic Uplift for Advanced IPTV Monitoring,” Journal of Network and Systems Management (2014): 1–36, doi:10.1007/s10922-014-9313-9.

bibtex

Ruairí de Fréin, “Ghostbusters: A Parts-Based NMF Algorithm,” in Signals and Systems Conference (ISSC 2013), 24th IET Irish (The Institution of Engineering; Technology - The IET, 2013), 1–8, doi:10.1049/ic.2013.0050.

bibtex

Ruairí de Fréin, “METHOD AND APPARATUS FOR DETERMINING WHETHER A NODE CAN REPRESENT OR BE REPRESENTED BY OTHER NODES WITHIN A NETWORK” (Patent, 18 Jan. 2013), http://patentscope.wipo.int/search/en/WO2013007521.

bibtex

Ruairí de Fréin, “Formal Concept Analysis via Atomic Priming,” in Formal Concept Analysis, ed. Peggy Cellier, Felix Distel, and Bernhard Ganter, vol. 7880 (Lecture Notes in Computer Science; http://dx.doi.org/10.1007/978-3-642-38317-5_6; Springer Berlin Heidelberg, 2013), 92–108, doi:10.1007/978-3-642-38317-5_6.

bibtex

Biao Xu et al., “Distributed Formal Concept Analysis Algorithms Based on an Iterative MapReduce Framework,” in Formal Concept Analysis, ed. Florent Domenach, DmitryI Ignatov, and Jonas Poelmans, vol. 7278 (Lecture Notes in Computer Science, 7278, http://dx.doi.org/10.1007/978-3-642-29892-9_26; Springer Berlin Heidelberg, 2012), 292–308, doi:10.1007/978-3-642-29892-9_26.

bibtex

Ruairí de Fréin and Scott T. Rickard, “The Synchronized Short-Time-Fourier-Transform: Properties and Definitions for Multichannel Source Separation,” Signal Processing, IEEE Transactions on 59, no. 1 (2011): 91–103, doi:10.1109/TSP.2010.2088392.

bibtex

 

Toolboxes:

Biao Xu and Ruairí de Fréin, “MRGANTER+: Distributed FCA Algorithm Based on Twister” ((Contributor) [Online], https://github.com/TSSG/MRGanterPlus, 2012), https://github.com/TSSG/MRGanterPlus.

bibtex

“MRGANTER+: Distributed FCA Algorithm Based on Twister.” (Contributor)

Andrzej Cichocki, Rafal Zdunek, and Contributors, “NMFLAB for Signal Processing,” Laboratory for Advanced Brain Signal Processing, BSI RIKEN, Saitama, Japan www Report, December (2006).

bibtex

“NMFLAB –MATLAB toolbox for non-negative matrix factorization.” (Contributor

Professional Links

Rugadh agus tógadh Ruairí de Fréin i mBaile Átha Cliatha.

Ghnóthaigh Ruairí na céimeanna B.E. san Innealtóireacht Leictreach agus Dioplóma Iarchéime “Licentiate of the Royal Schools of Music” (LRSM) sa Cheol ó Ollscoil na hÉireann, Baile Átha Cliath, agus ó an Bord Comhlachaithe na Scoileanna Ríoga Ceoil (The Associated Board of the
Royal Schools of Music) i 2004 agus 2012.

Tá céim dochtúireachta bainte amach aige i “Signal Processing” leis an teideal “Adapting Bases Using the Synchronized Short Time Fourier Transform and Non-Negative Matrix Factorization” faoi stiúir an matamaiticeoir, an Ollaimh Scott T. Rickard.

Chaith sé tréimhse i mbun taighde agus ag stiúradh mac léinn dochtúireachta agus máistreachta in Institiúid Teicneolaíochta Phort Láirge. Ghnóthaigh Ruairí deontas taighde ó Fondúireacht Eolaíochta Éireann (Science Foundation Ireland) chun taisteal go dtí Universidade
Federal do Paraná i Brazil. I 2014 chaith sé tréimhse mar “Eolaí ar Cuairt” Marie Skłodowska-Curie, le Amadeus SAS i Nice sa Fhrainc. Tá sé ina Chomhalta Taighde Marie Skłodowska-Curie d’ollscoil KTH Royal Institute of Technology sa tSualainn anois.

Tá moll mór de pháipéir léannta foilsithe ar a thaighde innealtóireachta i nBéarla go nuige seo. Tá sé mar bhall de Chumann na nInnealtóirí agus de roinnt Institiúidí eile.

Is amhránaí traidisiúnta agus clasaiceach é Ruairí agus is ball é den ghrúpa amhránaíochta traidisiúnta iomráiteach “Concordia”. Bhí sé páirteach i riar mhaith dlúthdhioscaí mar amhránaí agus mar thionlacaí chomh maith le bheith gníomhach i ceolchoirmeacha san Eoraip agus níos
faide i gcéin, mar shampla leis an grúpa the Keynotes, i “Will Ye Go To Flanders?” le Concordia i “Passetyme with Goode Companye” agus ceoldráma “The Invader” le Eric Sweeney.

© Copyright 2016 - Dr. Ruairí de Fréin

Publications

My google scholar page keeps track of most of my publications

 

2014

Ruairí de Fréin, “Learning and Storing the Parts of Objects: IMF,” in IEEE International Workshop on Machine Learning for Signal Processing, 2014, doi:10.1109/ICDSP.2014.6900690.

bibtex

Ruairí de Fréin, “Quantized Nonnegative Matrix Factorization,” in Digital Signal Processing (DSP), 2014 19th International Conference on, 2014, 377–82, doi:10.1109/ICDSP.2014.6900690.

bibtex

Ruairí de Fréin, “Multilayered, Blocked Formal Concept Analyses for Adaptive Image Compression,” in Formal Concept Analysis, ed. Cynthia Vera Glodeanu, Mehdi Kaytoue, and Christian Sacarea, vol. 8478, Lecture Notes in Computer Science (Springer International Publishing, 2014), 251–67, doi:10.1007/978-3-319-07248-7_18.

bibtex

Ruairí de Fréin et al., “Integration of QoS Metrics, Rules and Semantic Uplift for Advanced IPTV Monitoring,” Journal of Network and Systems Management (2014): 1–36, doi:10.1007/s10922-014-9313-9.

bibtex

Michele Nogueira, Ruairí de Fréin, and Ozan Tonguz, “Biologically Inspired Networking Approaches as Building Blocks for Distributed Systems.” (The 44th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2014), Georgia Tech, Atlanta, Georgia USA., 2014).

bibtex

 

2013

Ruairí de Fréin, “Ghostbusters: A Parts-Based NMF Algorithm,” in Signals and Systems Conference (ISSC 2013), 24th IET Irish (The Institution of Engineering; Technology - The IET, 2013), 1–8, doi:10.1049/ic.2013.0050.

bibtex

Ruairí de Fréin, “METHOD AND APPARATUS FOR DETERMINING WHETHER A NODE CAN REPRESENT OR BE REPRESENTED BY OTHER NODES WITHIN A NETWORK” (Patent, 18 Jan. 2013), http://patentscope.wipo.int/search/en/WO2013007521.

bibtex

Ruairí de Fréin, “Formal Concept Analysis via Atomic Priming,” in Formal Concept Analysis, ed. Peggy Cellier, Felix Distel, and Bernhard Ganter, vol. 7880 (Lecture Notes in Computer Science; http://dx.doi.org/10.1007/978-3-642-38317-5_6; Springer Berlin Heidelberg, 2013), 92–108, doi:10.1007/978-3-642-38317-5_6.

bibtex

 

2012

Biao Xu et al., “Distributed Formal Concept Analysis Algorithms Based on an Iterative MapReduce Framework,” in Formal Concept Analysis, ed. Florent Domenach, DmitryI Ignatov, and Jonas Poelmans, vol. 7278 (Lecture Notes in Computer Science, 7278, http://dx.doi.org/10.1007/978-3-642-29892-9_26; Springer Berlin Heidelberg, 2012), 292–308, doi:10.1007/978-3-642-29892-9_26.

bibtex

Biao Xu and Ruairí de Fréin, “MRGANTER+: Distributed FCA Algorithm Based on Twister” ((Contributor) [Online], https://github.com/TSSG/MRGanterPlus, 2012), https://github.com/TSSG/MRGanterPlus.

bibtex

 

2011

Ruairí de Fréin and Scott T. Rickard, “The Synchronized Short-Time-Fourier-Transform: Properties and Definitions for Multichannel Source Separation,” Signal Processing, IEEE Transactions on 59, no. 1 (2011): 91–103, doi:10.1109/TSP.2010.2088392.

bibtex

 

2010

Ruairí de Fréin, “Adapting Bases Using the Synchronized Short Time Fourier Transform and Non-Negative Matrix Factorization” (PhD thesis, University College Dublin, 2010).

bibtex

 

2009

Ruairí de Fréin and Scott T. Rickard, “Learning Speech Features in the Presence of Noise: Sparse Convolutive Robust Non-Negative Matrix Factorisation,” in Digital Signal Processing, 2009 16th International Conference on (IEEE, 2009), 1–6, doi:10.1109/ICDSP.2009.5201068.

bibtex

Ruairí de Fréin, Scott T. Rickard, and Konstantinos Drakakis, “Extracting Garch Effects from Asset Returns Using Robust NMF,” in Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, 2009. DSP/SPE 2009. IEEE 13th (IEEE, 2009), 200–5, doi:10.1109/DSP.2009.4785921.

bibtex

Ruairí de Fréin, Scott T. Rickard, and Barak A. Pearlmutter, “Constructing Time-Frequency Dictionaries for Source Separation via Time-Frequency Masking and Source Localisation,” in Independent Component Analysis and Signal Separation, ed. Tulay Adali et al., vol. 5441 (Lecture Notes in Computer Science, 7278, http://dx.doi.org/10.1007/978-3-642-00599-272; Springer Berlin Heidelberg, 2009), 573–80, doi:10.1007/978-3-642-00599-2_72.

bibtex

 

2008

Ruairí de Fréin, Scott T. Rickard, and Barak A. Pearlmutter, “Sparse Multichannel Source Localization and Separation,” in 8th International Conference on Mathematics in Signal Processing, IMA (The Institute of Mathematics; its Applications, 2008), 90–3, http://repository.wit.ie/2741/.

bibtex

Ruairí de Fréin, Konstantinos Drakakis, and Scott T. Rickard, “Portfolio Diversification Using Subspace Factorisations,” in IEEE Information Sciences and Systems, 2008. CISS 2008. 42nd Annual Conference on, 2008, 1075–80, doi:10.1109/CISS.2008.4558678.

bibtex

Konstantinos Drakakis et al., “Analysis of Financial Data Using Non-Negative Matrix Factorisation,” International Mathematical Forum 3, no. 38 (2008): 1853–70.

bibtex

 

2007

Fintan Sheerin and Ruairí de Fréin, “The Occipital and Sacral Pressures Experienced by Healthy Volunteers Under Spinal Immobilization: A Trial of Three Surfaces,” Journal of Emergency Nursing (JEN): Official Publication of the Emergency Department Nurses Association 33, no. 5 (2007): 447–50, doi:10.1016/j.jen.2006.11.004.

bibtex

 

2006

Andrzej Cichocki, Rafal Zdunek, and Contributors, “NMFLAB for Signal Processing,” Laboratory for Advanced Brain Signal Processing, BSI RIKEN, Saitama, Japan www Report, December (2006).

bibtex

 

2005

Scott T. Rickard, Ruairí de Fréin, and Conor Fearon, “SAGI: Sparsification Algorithm Using Greedy Iteration,” in Signal Processing with Adaptive Sparse Structured Representations, ed. R Gribonval, B Torresani, and L Daudet (Rennes (France), 2005), 16–8, http://spars05.irisa.fr/ACTES/PS1-10.pdf.

bibtex

 

2004

Ruairí de Fréin et al., “A System for Monitoring Pressures and Spinal Curvature in Spinally Injured People Immobilised on a Spinal Raft,” Journal on Advances in Electrical and Electronic Engineering 3, no. 2 (2004): 209–12.

bibtex

Ruairí de Fréin et al., “A System for Monitoring Pressures and Spinal Curvature in Spinally Injured People Immobilised on a Spinal Raft,” in Elektro 2004, University of Zilina, Slovakia, 2004, http://arrow.dit.ie/teapotart/1/.

bibtex

Cichocki, Andrzej, Rafal Zdunek, and Contributors. “NMFLAB for Signal Processing.” Laboratory for Advanced Brain Signal Processing, BSI RIKEN, Saitama, Japan www Report, December (2006).

Drakakis, Konstantinos, Scott T. Rickard, Ruairí de Fréin, and Andrzej Cichocki. “Analysis of Financial Data Using Non-Negative Matrix Factorisation.” International Mathematical Forum 3, no. 38 (2008): 1853–70.

Nogueira, Michele, Ruairí de Fréin, and Ozan Tonguz. “Biologically Inspired Networking Approaches as Building Blocks for Distributed Systems.” The 44th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2014), Georgia Tech, Atlanta, Georgia USA., 2014.

Rickard, Scott T., Ruairí de Fréin, and Conor Fearon. “SAGI: Sparsification Algorithm Using Greedy Iteration.” In Signal Processing with Adaptive Sparse Structured Representations, edited by R Gribonval, B Torresani, and L Daudet, 16–8. Rennes (France), 2005. http://spars05.irisa.fr/ACTES/PS1-10.pdf.

Ruairí de Fréin. “Adapting Bases Using the Synchronized Short Time Fourier Transform and Non-Negative Matrix Factorization.” PhD thesis, University College Dublin, 2010.

———. “Formal Concept Analysis via Atomic Priming.” In Formal Concept Analysis, edited by Peggy Cellier, Felix Distel, and Bernhard Ganter, 7880:92–108. Lecture Notes in Computer Science; http://dx.doi.org/10.1007/978-3-642-38317-5_6; Springer Berlin Heidelberg, 2013. doi:10.1007/978-3-642-38317-5_6.

———. “Ghostbusters: A Parts-Based NMF Algorithm.” In Signals and Systems Conference (ISSC 2013), 24th IET Irish, 1–8. The Institution of Engineering; Technology - The IET, 2013. doi:10.1049/ic.2013.0050.

Ruairí de Fréin. “Learning and Storing the Parts of Objects: IMF.” In IEEE International Workshop on Machine Learning for Signal Processing, 2014. doi:10.1109/ICDSP.2014.6900690.

———. “METHOD AND APPARATUS FOR DETERMINING WHETHER A NODE CAN REPRESENT OR BE REPRESENTED BY OTHER NODES WITHIN A NETWORK.” Patent, 18 Jan. 2013. http://patentscope.wipo.int/search/en/WO2013007521.

———. “Multilayered, Blocked Formal Concept Analyses for Adaptive Image Compression.” In Formal Concept Analysis, edited by Cynthia Vera Glodeanu, Mehdi Kaytoue, and Christian Sacarea, 8478:251–67. Lecture Notes in Computer Science. Springer International Publishing, 2014. doi:10.1007/978-3-319-07248-7_18.

———. “Quantized Nonnegative Matrix Factorization.” In Digital Signal Processing (DSP), 2014 19th International Conference on, 377–82, 2014. doi:10.1109/ICDSP.2014.6900690.

Ruairí de Fréin, and Scott T. Rickard. “Learning Speech Features in the Presence of Noise: Sparse Convolutive Robust Non-Negative Matrix Factorisation.” In Digital Signal Processing, 2009 16th International Conference on, 1–6. IEEE, 2009. doi:10.1109/ICDSP.2009.5201068.

Ruairí de Fréin, and Scott T. Rickard. “The Synchronized Short-Time-Fourier-Transform: Properties and Definitions for Multichannel Source Separation.” Signal Processing, IEEE Transactions on 59, no. 1 (2011): 91–103. doi:10.1109/TSP.2010.2088392.

Ruairí de Fréin, Konstantinos Drakakis, and Scott T. Rickard. “Portfolio Diversification Using Subspace Factorisations.” In IEEE Information Sciences and Systems, 2008. CISS 2008. 42nd Annual Conference on, 1075–80, 2008. doi:10.1109/CISS.2008.4558678.

Ruairí de Fréin, Eoin Flinn, Annraoi de Paor, and Edward Burke. “A System for Monitoring Pressures and Spinal Curvature in Spinally Injured People Immobilised on a Spinal Raft.” In Elektro 2004, University of Zilina, Slovakia, 2004. http://arrow.dit.ie/teapotart/1/.

———. “A System for Monitoring Pressures and Spinal Curvature in Spinally Injured People Immobilised on a Spinal Raft.” Journal on Advances in Electrical and Electronic Engineering 3, no. 2 (2004): 209–12.

Ruairí de Fréin, Cristian Olariu, Yuqian Song, Rob Brennan, Patrick McDonagh, Adriana Hava, Christina Thorpe, John Murphy, Liam Murphy, and Paul French. “Integration of QoS Metrics, Rules and Semantic Uplift for Advanced IPTV Monitoring.” Journal of Network and Systems Management (2014): 1–36. doi:10.1007/s10922-014-9313-9.

Ruairí de Fréin, Scott T. Rickard, and Konstantinos Drakakis. “Extracting Garch Effects from Asset Returns Using Robust NMF.” In Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, 2009. DSP/SPE 2009. IEEE 13th, 200–5. IEEE, 2009. doi:10.1109/DSP.2009.4785921.

Ruairí de Fréin, Scott T. Rickard, and Barak A. Pearlmutter. “Constructing Time-Frequency Dictionaries for Source Separation via Time-Frequency Masking and Source Localisation.” In Independent Component Analysis and Signal Separation, edited by Tulay Adali, Christian Jutten, Joao Marcos, Romano Travassos, and Allan Kardec Barros, 5441:573–80. Lecture Notes in Computer Science, 7278, http://dx.doi.org/10.1007/978-3-642-00599-272; Springer Berlin Heidelberg, 2009. doi:10.1007/978-3-642-00599-2_72.

———. “Sparse Multichannel Source Localization and Separation.” In 8th International Conference on Mathematics in Signal Processing, IMA, 90–3. The Institute of Mathematics; its Applications, 2008. http://repository.wit.ie/2741/.

Sheerin, Fintan, and Ruairí de Fréin. “The Occipital and Sacral Pressures Experienced by Healthy Volunteers Under Spinal Immobilization: A Trial of Three Surfaces.” Journal of Emergency Nursing (JEN): Official Publication of the Emergency Department Nurses Association 33, no. 5 (2007): 447–50. doi:10.1016/j.jen.2006.11.004.

Xu, Biao, and Ruairí de Fréin. “MRGANTER+: Distributed FCA Algorithm Based on Twister.” (Contributor) [Online], https://github.com/TSSG/MRGanterPlus, 2012. https://github.com/TSSG/MRGanterPlus.

Xu, Biao, Ruairí de Fréin, Eric Robson, and Mícheál Ó Foghlú. “Distributed Formal Concept Analysis Algorithms Based on an Iterative MapReduce Framework.” In Formal Concept Analysis, edited by Florent Domenach, DmitryI Ignatov, and Jonas Poelmans, 7278:292–308. Lecture Notes in Computer Science, 7278, http://dx.doi.org/10.1007/978-3-642-29892-9_26; Springer Berlin Heidelberg, 2012. doi:10.1007/978-3-642-29892-9_26.

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