I am a University Lecturer (Assistant Professor) in Cosmology at the Mullard Space Science Laboratory (MSSL) at University College London (UCL) and a Core Team member of the ESA Planck satellite mission.

Previously I was a Newton Fellow, and before that a Leverhulme Early Career Fellow, in the Department of Physics and Astronomy at UCL. Prior to that I was a Postdoctoral Researcher in the Electrical Engineering Institute at Ecole Polytechnique Federale de Lausanne (EPFL) and a Research Fellow of Clare College, Cambridge, affiliated with the Astrophysics Group of the Physics Department (the Cavendish) at the University of Cambridge.

My research is concerned with astroinformatics and astrostatistics, with a focus on cosmology and radio interferometry. Please see my publications page, the Cosmology @ MSSL webpage, and my blog posts for more information.

Announcements


I was recently awarded funding to develop new compressive imaging techniques for application
in radio interferometry and beyond.
For further information please see the related press release.

I was also recently awarded funding to develop new informatics techniques to extract
scientific information from observational data, in particular for data observed on spherical manifolds.

Vacancies for postdoctoral researchers to contribute to these projects are open now
(for further information see Research Opportunities).


Recent news

  • [December 2014] Vacancies for postdoctoral researchers announced. More »
  • [December 2014] Presented talk at SuSTaIn EdgeCutter Workshop on Astrostatistics at the Royal Statistical Society on Sparsity in astrophysics: astrostatistics meets astroinformatics. More »
  • [December 2014] Presented talk at ERCIM International Conference on Computational and Methodological Statistics on Spin scale-discretised wavelets on the sphere for the analysis of CMB polarisation. More »
  • [December 2014] Conference paper available for Statistical Challenges in 21st Century Cosmology 2014 on On spin scale-discretised wavelets on the sphere for the analysis of CMB polarisation. More »
  • [November 2014] Article published in The Conversation on Monster telescope needs mind-bending mathematics to uncover secrets of the universe. More »
  • [November 2014] Press release issued on new research projects to develop compressive sensing techniques for radio interferometry and beyond: Pioneering work helps to join the dots across the known universe... and the human brain. More »
  • [October 2014] Planck 2013 results published. More »
  • [September 2014] Presented talk at International Workshop on Cosmology and Sparsity on Spin scale-discretised wavelets on the sphere for the analysis of CMB polarisation. More »
  • [September 2014] Presented talk at Royal Statistics Society International Conference on Sparsity in astrophysics: astrostatistics meets astroinformatics. More »
  • [August 2014] Novel optimal sampling spherical harmonic transform code NSHT available for download! More »
  • [August 2014] Abstract submission open for the Biomedical and Astronomical Signal Processing (BASP) Frontiers 2015 workshop! More »
  • [August 2014] Presented talk at Inverse Problems - from Theory to Application (IPTA) on Radio interferometric imaging with compressive sensing. More »
  • [July 2014] Slides now available for the Science on the Sphere Royal Society International Scientific. Thanks all for a great meeting! More »
  • [July 2014] Presented talk at Science on the Sphere on Spherical signal analysis. More »
  • [July 2014] Paper accepted for publication on An optimal-dimensionality sampling scheme on the sphere with fast spherical harmonic transforms. More »
  • [June 2014] Presented talk at UCL Research IT Services Forum on Imaging observations from next-generation radio interferometric telescopes. More »
  • [June 2014] Presented talk at BioImaging UK meeting on Astronomical imaging initiatives. More »
  • [May 2014] Conference paper available for ICASSP 2014 on PURIFY: a new algorithmic framework for next-generation radio-interferometric imaging. More »
  • [May 2014] Presented talk at IAU Symposium on Statistical Challenges in 21st Century Cosmology on Spin scale-discretised wavelets on the sphere for the analysis of CMB polarisation. More »
  • [May 2014] Website up for the Biomedical and Astronomical Signal Processing (BASP) Frontiers workshop that we are organising. Session organisers are now inviting speakers. More »
  • [May 2014] Website up for the Science on the Sphere Royal Society International Scientific Seminar that we are organising. More »
  • [March 2014] Paper submitted on Slepian spatial-spectral concentration on the ball. More »
  • [March 2014] Paper submitted on An optimal-dimensionality sampling scheme on the sphere with fast spherical harmonic transforms. More »
  • [March 2014] Presented talk at MSSL UCL on CosmoInformatics More »
  • [March 2014] Presented talk at Victoria University on Primordial gravitational waves detected by BICEP2? More »
  • [March 2014] Presented talk at Australian National University (ANU) on Cosmological signal and image processing. More »
  • [March 2014] Presented talk at CALIM 2014 on Revisiting the spread spectrum effect in radio interferometric imaging. More »
  • [February 2014] Paper published by Pascal Audet using FastCSWT code for Planetary Geophysics. More »
  • [January 2014] Paper accepted for publication on Sparse inpainting and isotropy. More »
  • [December 2013] Paper accepted for publication on PURIFY: a new approach to radio-interferometric imaging. More »
  • [December 2013] Presented talk at AUT on Cosmological image processing. More »
  • [December 2013] Presented talk at AUT on Next-generation radio interferometric imaging with compressive sensing. More »
  • [November 2013] Presented keynote at IVCNZ 2013 on Cosmological image processing. More »
  • [November 2013] Presented talk at IEEE NZ Central Section AGM on Next-generation radio interferometric imaging with compressive sensing. More »
  • [November 2013] Paper accepted for publication on Probabilistic image reconstruction for radio interferometers. More »
  • [November 2013] New webpage launched for Cosmology @ MSSL.
  • [November 2013] Webpage updated.
  • [September 2013] Sparse CMB inpainting code SIC available for download! More »
  • [September 2013] Next-generation radio interferometric imaging code PURIFY available for download! More »
  • [September 2013] Sparse optimisation code SOPT available for download! More »
  • [September 2013] Paper accepted for publication on Bayesian analysis of anisotropic cosmologies: Bianchi VIIh and WMAP. More »
  • [September 2013] Presented talk at Synergistic Science with Euclid and the Square Kilometre Array on Sparsity, Euclid and the SKA. More »
  • [September 2013] Paper submitted on Probabilistic image reconstruction for radio interferometers. More »
  • [September 2013] Paper accepted for publication on Revisiting the spread spectrum effect in radio interferometric imaging: a sparse variant of the w-projection algorithm. More »
  • [August 2013] Paper accepted for publication on S2LET: A code to perform fast wavelet analysis on the sphere.
    More »
  • [August 2013] Conference paper available for Wavelets and Sparsity XV on Classification and construction of closed-form kernels for signal representation on the 2-sphere. More »
  • [August 2013] Conference paper available for Wavelets and Sparsity XV on Flaglets for studying the large-scale structure of the Universe. More »
  • [August 2013] Conference paper available for Wavelets and Sparsity XV on On the computation of directional scale-discretized wavelet transforms on the sphere. More »
  • [August 2013] Presented talk at Wavelets and Sparsity XV on Scale-discretized wavelets on the sphere. More »
  • [August 2013] Paper accepted for publication on Hierarchical Bayesian detection algorithm for early-Universe relics in the cosmic microwave background. More »
  • [August 2013] Paper submitted on Sparse inpainting and isotropy. More »
  • [July 2013] Paper submitted on Why CLEAN when you can PURIFY? More »
  • [July 2013] Paper submitted on Revisiting the spread spectrum effect in radio interferometric imaging: a sparse variant of the w-projection algorithm. More »
  • [July 2013] Presented talk at SampTA 2013 on Fourier-Laguerre transform, convolution and wavelets on the ball. More »
  • [June 2013] Call for papers for IEEE International Conference on Data Mining (ICDM) 2013: Astroinformatics Workshop. More »
  • [June 2013] Conference paper accepted for SampTA 2013 on Fourier-Laguerre transform, convolution and wavelets on the ball. More »
  • [June 2013] Conference paper accepted for SampTA 2013 on On sparsity averaging. More »
  • [June 2013] Presented talk at PASCAL workshop on Signal processing on spherical manifolds. More »
  • [April 2013] Presented talk at London Cosmology Discussion Meeting (LCDM) on Exploiting sparsity for CMB data analysis. More »
  • [April 2013] Presented talk at ESLAB Symposium on Background geometry and topology of the Universe: Bianchi VII_h cosmologies and Planck. More »
  • [March 2013] Planck papers submitted. More »
  • [March 2013] Presented talk at CosmoStats 2013 on Sparsity: CosmoStats meets CosmoInformatics. More »
  • [March 2013] Paper submitted on Bayesian analysis of anisotropic cosmologies: Bianchi VII_h and WMAP. More »
  • [March 2013] Presented talk at Australian National University (ANU) on Signal processing on spherical manifolds. More »
  • [March 2013] Presented talk at Victoria University on Towards realistic radio interferometric imaging with compressive sensing. More »
  • [February 2013] Paper accepted for publication on Sparsity averaging for compressive imaging. More »
  • [February 2013] Paper accepted for publication on Sparse image reconstruction on the sphere: implications of a new sampling theorem. More »
  • [January 2013] Biomedical and Astrophysical Signal Processing (BASP) Frontiers 2013 was a great success! Proceedings are available online. More »
  • [January 2013] Paper accepted for publication on Fast directional spatially localized spherical harmonic transform. More »
  • [January 2013] Presented talk at London Cosmology Discussion Meeting (LCDM) on Radio interferometric imaging with compressive sensing. More »
  • [December 2012] Presented talk at CALIM 2012 on Towards compressive sensing imaging of real radio interferometric observations. More »
  • [November 2012] Exact wavelet transform on the ball package FLAGLET available for download! Includes C and Matlab interfaces. More »
  • [November 2012] Exact Fourier-Laguerre transform on the ball package FLAG available for download! Includes C and Matlab interfaces. More »
  • [November 2012] Fast scale-discretised wavelet transform on the sphere package S2LET available for download! Includes C, Matlab, IDL and Java interfaces. More »
  • [November 2012] Paper submitted on S2LET: A code to perform fast wavelet analysis on the sphere. More »
  • [October 2012] Paper submitted on Hierarchical Bayesian detection algorithm for early-Universe relics in the cosmic microwave background. More »
  • [October 2012] Presented talk at Portsmouth ICG seminar on Cosmological signal processing. More »
  • [October 2012] Presented talk at Southampton astronomy seminar on Cosmological signal processing. More »

Archived news