Nicholas T. Longford

  • Fourth Congress of Polish Statistics, Warsaw, Poland; July 2024.
    Invited speaker in the session on Survey Sampling and Small Area Estimation.

  • Second International Conference on Data Science and Official Statistics (ICDSOS),
    Politeknik Statistika STIS, Jakarta, Indonesia; November 2023.
    Member of the organising team; reviewer of submissions.

  • Statistical balancing as an unconstrained optimisation problem.
    Invited paper presented at the 58th Conference of Statisticians,
    Econometricians and Mathematicians from Southern Poland;
    Katowice, Polands, April 2022.

  • First International Conference on Data Science and Official Statistics (ICDSOS),
    Politeknik Statistika STIS, Jakarta, Indonesia; November 2021.
    Member of the organising team; reviewer of submissions.

  • Mortality rates analysed by propensity matching,
    Paper presented in an invited session at the Linstat 2021 Conference,
    Bedlewo, Poland; August 2021.

  • Causal analysis of observational studies in the context of big data.
    Invited paper presented at the 4th Conference on Implicative Statistical Analysis,
    Escuela Superior de Politecnica Chimborazo, Riobamba, Ecuador.
    (Presentation preceded by a short course in R. October 2019

  • Statistics on poverty in the European countries.
    Invited paper presented at the 2nd Conference of the Colombian Statistical Society;
    Cali, Colombia, November 2018

  • Comparing the rates of broncho-pulmonary dysplasia on the basis of like with like.
    Paper presented at the Annual NNAP Collaborators Meeting, London, UK.
    April 2018

  • Performance assessment as an application of causal analysis.
    Poster presented at the EuroCIM Meeting, Florence, Italy.
    April 2018

  • Invited paper at the 7th National Conference on Fundamental Sciences,
    Universidad Juarez Autonoma de Tabasco, Cunduacan, Tabasco, Mexico.
    October 2017

  • Statistical methods and applications in neonatal care.
    Invited paper at the 7th National Conference on Fundamental Sciences,
    Universidad Juarez Autonoma de Tabasco, Cunduacan, Tabasco, Mexico.
    November 2018

  • A decision-theoretical perspective on the problem of multiple testing.
    Contributed paper at the Adaptive Designs and Multiple Testing Procedures Workshop;
    Cambridge, UK, June 2017

  • Estimation under model uncertainty.
    Invited paper at the 8th Conference on Survey Sampling in Economic and Social Research, Katowice, Poland.
    June 2017

  • Statistical science in neonatal care. Keynote paper at the 7th Forum on Applied Statistics, Xalapa, Mexico.
    May 2017

  • Monitoring the growth of infants with low birthweight. Autumn Meeting of the Neonatal Society, London, UK.
    November 2015

  • Missing data and small-area estimation.
    FDA (Food and Drug Administration) Public Meeting on Missing Data.
    Silver Spring, MD, USA; November 2015

  • Statistical skills. Discussion at a roundtable at the 5th Forum of Applied Statistics, Xalapa, Mexico.
    May 2015

  • Decision theory for everyday statistics.
    Paper presented at the Meeting to Celebrate 35 years of the Statistics Programme
    at Universidad del Valle, Cali, Colombia.
    November 2014

  • Policy-related small-area estimation.
    Paper presented at the 1st South European Survey Methodology Conference, Barcelona, Spain.
    December 2013

  • Decision theory for some elementary statistical problems.
    Paper presented at the 28th International Workshop on Statistical Modelling, Palermo, Italy.
    July 2013

  • Epidemiology and biostatistics. Papers presented at the Jornada de Estadistica Aplicada,
    Escuela Superior Politecnica de Chimborazo, Riobamba, Ecuador.
    June 2013

  • Annual income progression described by multivariate log-normal distributions.
    (with J. Bartosova)
    Paper presented at the 2nd IMPALLA Conference, Esch-Belval, Luxembourg, April 2013

  • Decision theory as an alternative to testing many hypotheses.
    Paper presented at the DAGStat Conference, Freiburg, Germany.
    March 2013

  • Poverty and income inequality in the EU countries (with J. Bartosova).
    Paper presented at the R Jornada Conference, CREAL Barcelona, Spain.
    November 2012

  • An application of the potential outcomes framework to the treatment of rheumatism athritis.
    Workshop on Theory and Practice of Policy Evaluation, Luxembourg City.
    May 2012

  • Statistics without hypothesis testing.
    Workshop on Controversy about Hypothesis Testing, UNED, Madrid.
    December 2011

  • Policy-related small-area estimation.
    7th Conference on Survey Sampling in Economic and Social Research, Katowice, Poland.
    September 2011

  • Analysis of a study of rheumatism arthritis by the potential outcomes framework.
    13th Spanish Biometry Conference and 3rd Ibero-American Biometry Meeting, Barcelona, Spain.
    September 2011

  • Clusters defined by distinct correlation structures.
    International Classification Conference, University of St. Andrews, Scotland.
    July 2011

  • 'Which model ...?' is the wrong question.
    Workshop 'All models are wrong ...', University of Groningen, the Netherlands.
    March 2011

  • Mixture models for multiple time series.
    3rd International Conference of the ERCIM Working Group on Computing and Statistics, London, UK.
    December 2010.

  • Mixture models with a black-hole component.
    5th International Conference on Soft Methods in Probability and Statistics, Oviedo, Spain.
    September 2010.

  • Mixture models with a black-hole component.
    RSS Meeting to celebrate Murray Aitkin's 70th birthday. London, UK.
    April 2010

  • A revised school effectiveness analysis.
    Statistical modelling and inference. Conference to celebrate Murray Aitkin's 70th birthday. Brisbane, Australia.
    February 2010

  • Multiple imputation tailored for a specific database.
    2009 Conference of the Italian Statistical Society (SIS),
    Statistical Methods for the Analysis of Large Datasets, Pescara, Italy; September 2009

  • A new house price index based on the potential outcomes framework.
    The 6th Conference on Survey Sampling in Economics and Social Sciences, Katowice, Poland; September 2009

  • Studying Human Populations.
    The 2nd Ibero-American Meeting of the Biometric Society, Veracruz, Mexico; July 2009

  • Small-area estimation with spatial similarity
    Conference on Survey Sampling in Social and Economic Research, Katowice, Poland; September 2008.

  • On standard errors of model-based small-area estimators.
    ISI2007 Conference, Lisbon, Portugal, August 2007.

  • Studying human populations. A new curriculum for social statistics.
    ESRA Conference, Prague, Czech Republic, June 2007.

  • Designing surveys for small-area estimation.
    Conference on Survey Sampling in Social and Economic Research, Katowice, Poland, September 2006.

  • Is 'Which model...?' the right question?
    COMPSTAT 2006 Conference, Rome, Italy, August 2006.
    See A. Rizzi and M. Vichi (Eds.), COMPSTAT 2006. Proceedings in Computational Statistics.
    Physica-Verlag, Heidelberg, 2006, pp. 337-349.

  • On standard errors in small-area estimation.
    SAE'2005 Conference, Jyvaskyla, Finland, August 2005.

  • Stability of household income in European countries in the 1990's (with M.G. Pittau) and On standard errors in small-area estimation.
    AESR Conference, Barcelona, Spain, July 2005.

  • Multilevel models. Beyond the software.
    70th Meeting of the Psychometric Society, Tilburg, the Netherlands, July 2005.

  • The role and scope of multiple imputation.
    Workshop on Multiple Imputation. MRC Cambridge, April 2005.

  • How to assess, and why not to ...
    Meeting on Performance Assessment and League Tables. Irish Statistical Association. Trinity College, Dublin, March 2005.

  • Sample size calculation for small-area estimation.
    9th GSS Methodology Conference, London, UK, June 2004.

  • Analysis of a long-term study of neurotic disorder, with insights into the process of nonresponse.
    RSS Conference on Statistical methods for attrition and non-response in social surveys, London, May 2004.

  • Procedures and principles in government statistics
    Invited paper at the 24th Conference on Applied Statistics, Galway, Ireland, May 2004.

  • Is `Which model?' the right question?
    Keynote paper at the New Zealand Statistical Association Conference, Palmerston North, New Zealand, July 2003.

  • Examples of multiple imputation.
    Invited paper at the XIX Methodological Symposium at Statistics Canada, Ottawa, Canada, November 2002.

  • Multivariate shrinkage estimation for small areas in the UK Labour Force Survey.
    The 7th GSS Methodology Conference, London, July 2002.

  • Examples of multiple imputation.
    Data Clean 2002 Conference, Jyvaskyla, Finland, May 2002.

  • Analysis of curves and shapes.
    Life Sciences 2001 Conference, Gozd Martuljek, Slovenia; September 2001.

  • Synthetic estimation: From small area statistics to model selection.
  • Selection bias and treatment heterogeneity in drug development.
    Invited papers at the ICRAMS 2000, Kharagpur, WB, India; December 2000. See Publications.

  • Multiple imputation in a programme of social science surveys. Simulation-based diagnostics in multilevel models.
    Social Science in the New Millenium (RC33), Cologne, Germany; September 2000.

  • Multivariate synthetic estimation.
    Conference of the Society for Multivariate Analysis in Behavioural Sciences, London; July 2000.

  • Applications of synthetic estimation in medical research.
    Statistics and Health Conference, Edmonton, Canada; June 2000.

  • Missing data and multiple imputation.
    Workshop on Classification and Mixture Modelling. Rothenberge (Munster University), November 1999.

  • Mean repair costs of dwellings in Scottish unitary authorities: An application of shrinkage (with C. Macintyre).
    Association of Survey Computing International Conference, Edinburgh, UK. September 1999. Proceedings article.

  • Handling missing data in diaries of alcohol consumption.
    RSS Conference, Warwick, UK, July 1999.

  • Treatment of missing information about attitutes to immigration.
    International Conference on Large Scale Data Analysis, Cologne, Germany, May 1999.

  • An experiment in primary health-care provision.
    RSS Conference on Applications of random effects/multilevel models to categorical data in social sciences and medicine. London, UK, October 1998.

  • Missing data in clinical trials.
    PSI Annual Conference, Harrogate, UK, September 1998.

  • Multivariate shrinkage estimation of small-area means and proportions.
    RSS Conference, Glasgow, September 1998.

  • Shrinkage estimation of local-area rates of economic activity.
    Conference on New Methods for Survey Research, Southampton, UK, August 1998.

    May 2024.