Browsing Journal Articles by Author "Guha, Apratim"

Now showing items 1-11 of 11

    • Assessing the dependence structure of the components of hybrid time series processes using mutual information 

      Guha, Apratim (Indian Statistical Institute, 2015)
      Hybrid processes, which are multivariate time series with some components continuous valued time series and the rest discrete valued time series or point processes, often arise in studies of neurological systems. Assessment ...

    • Auto-association measures for stationary time series of categorical data 

      Biswas, Atanu; Del Carmen Pardo, Maria; Guha, Apratim (TEST, 2014)
      For stationary time series of nominal categorical data or ordinal categorical data (with arbitrary ordered numberings of the categories), autocorrelation does not make much sense. Biswas and Guha (J Stat Plan Infer ...

    • Gravity and depth of social media networks 

      Guha, Pritha; Bansal, Avijit; Guha, Apratim; Chakrabarti, Anindya S. (Oxford University Press, 2021-05-27)
      Structures of social media networks provide a composite view of dyadic connectivity across social actors, which reveals the spread of local and global influences of those actors in the network. Although social media network ...

    • Meta-analysis of test accuracy studies with multiple and missing thresholds: a multivariate-normal model 

      Riley, Richard D.; Takwoingi, Yemisi; Trikalinos, Thomas; Biswas, Atanu; Guha, Apratim; Ensor, Joie; Morris, R Katie; Deeks, Jonathan (Journal of Biometrics and Biostatistics, 2014-01)
      When meta-analysing studies examining the diagnostic/predictive accuracy of classifications based on a continuous test, each study may provide results for one or more thresholds, which can vary across studies. Researchers ...

    • Modelling and coherent forecasting of zero-inflated count time series 

      Maiti, Raju; Biswas, Atanu; Guha, Apratim; Ong, Seng Huat (SAGE Publications, 2014)
      In this article, a new kind of stationary zero-inflated Pegram’s operator based integer-valued time series process of order p with Poisson marginal or ZIPPAR(p) process is constructed for modelling count time series ...

    • Modelling and coherent forecasting of zero-inflated count time series 

      Maiti, Raju; Biswas, Atanu; Guha, Apratim; Ong, Seng Huat (Statistical Modelling: An International Journal, 2014)
      In this article, a new kind of stationary zero-inflated Pegram’s operator based integervalued time series process of order p with Poisson marginal or ZIPPAR(p) process is constructed for modelling count time series ...

    • A mutual information-based K-sample test for discrete distribution 

      Drake, Robert; Guha, Apratim (Journal of Applied Statistics, 2014)
      The two-sample problem and its extension to the k-sample problem are well known in the statistical literature. However, the discrete version of the k-sample problem is relatively less explored. Here in this work we suggest ...

    • Some analysis of the interaction among local field potentials and neuronal discharges in a mouse using mutual information 

      Guha, Apratim (Journal of the Indian Society of Agricultural Statistics, 2014)
      Constructing models for neuroscience data is a challenging task, more so when the data sets are of hybrid nature, and there exists very little work. As a first step, here we introduce a technique based on mutual information ...

    • Time series characterization of gaming workload for runtime power management 

      Guha, Apratim; Dietrich, Benedikt; Goswami, Dip; Chakraborty, Samarjit; Gries, Matthias (IEEE Transactions on Computers, 2015)
      Runtime power management using dynamic voltage and frequency scaling (DVFS) has been extensively studied for video processing applications. But there is only a little work on game power management although gaming applications ...

    • Time series characterization of gaming workload for runtime power management 

      Chakraborty, Samarjit; Guha, Apratim; Gries, Matthias; Dietrich, Benedikt; Goswami, Dip (Institute of Electrical and Electronics Engineers, Inc., 2015)
      —Runtime power management using dynamic voltage and frequency scaling (DVFS) has been extensively studied for video processing applications. But there is only a little work on game power management although gaming ...

    • A two sample test based on mutual information 

      Guha, Apratim; Chothia, Tom (Calcutta Statistical Association Bulletin, 2014-06)
      For two independently drawn samples from continuous distributions, a permutation test based on the mutual information statistic is proposed for the null hypothesis that both the samples originate from the same population. ...