Category Archives: Rants

The gift that keeps on giving …

My loyal readers will perhaps remember the saga of the Pflamm-Altenburg et al. (2013) paper which I blogged about a while ago under the title, “Bordering on scientific misconduct …“.  The quick summary is that I noticed their paper in … Continue reading

Posted in Astronomy, Astrostatistics, Bad Science, Rants | 1 Comment

More GPs for reconstructing H(z) …

It seems there’s quite a cottage industry for GP-based non-parametric modelling of H(z) using the cosmic chronometers supernova (SN) dataset: today on astro-ph we had a contribution by Verde et al., following on from Busti et al.’s effort last week. … Continue reading

Posted in Astronomy, Astrostatistics, Bad Science, Gaussian Processes, Rants, Semi-Parametric | Leave a comment

On the geometric path to a smack down …

I noticed this paper on astro ph today by Hou, Goodman, & Hogg describing their “new” idea for marginal likelihood estimation using the geometric path.  A quick inspection reveals that in fact the idea being presented is exactly the same as … Continue reading

Posted in Astrostatistics, Marginal Likelihood Estimation, Rants | 6 Comments

More fine structure results …

Another brief paper on astro ph today looking at the fine structure constant: Rahmani et al. Instead of using the many multiplet method of Dzuba et al & Webb et al—which (if there are no systematic errors) can estimate da/a … Continue reading

Posted in Astrostatistics, Rants | 2 Comments

Great moments in refereeing #521 …

“The discusssion below (20) for variance estimation and in the Appendix B seems to be heuristic. If the arguments could be made (more) rigorous, then it would be helpful to do so. Otherwise, it would be helpful to acknowledge the heuristic nature of … Continue reading

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ABC for stellar population inference in low mass star clusters …

I had a productive email exchange with Miguel Cervino (who wrote this review of the challenges for stellar population parameter inference under the stochastic effects of IMF sampling in low mass star clusters) regarding the potential for ABC in this … Continue reading

Posted in ABC, Astronomy, Astrostatistics, INLA, Rants | Leave a comment

Fish rots from the head …

Following the old adage that the fish rots from the head first I decided this evening to check out some more of the paper by the Kroupa group, particularly Kroupa’s recent first author contributions.  And indeed I quickly found another example … Continue reading

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