A Comparative Analysis of the Cobb-Douglas Habitability Score (CDHS) with the Earth Similarity Index (ESI)

Surbhi Agrawal, Suryoday Basak, Snehanshu Saha, Kakoli Bora, Jayant Murthy
(Submitted on 30 Apr 2018)

We present an analytical comparison of the Cobb-Douglas Habitability Production Function (CD-HPF) and the Earth Similarity Index (ESI). The key differences between the ESI and CD-HPF are highlighted and based on mathematical analysis, we show that the CD-HPF satisfies the conditions for model scalability and stability but the ESI does not. Using visualizations, we also demonstrate that there do not exist any causal relationships between the ESI and CD-HPF. The conclusion from the work done is that the CD-HPF and ESI do not share any sensible relationship and that both should be used independently.

Subjects:    Instrumentation and Methods for Astrophysics (astro-ph.IM); Earth and Planetary Astrophysics (astro-ph.EP)
Cite as:    arXiv:1804.11176 [astro-ph.IM] (or arXiv:1804.11176v1 [astro-ph.IM] for this version)
Submission history
From: Suryoday Basak 
[v1] Mon, 30 Apr 2018 13:24:38 GMT (129kb,D)
https://arxiv.org/abs/1804.11176
Astrobiology