Apeirics

Finite protocols for inference and measurement.

What follows from constraints and finite measurement protocols — and nothing more.

Apeirics is a consulting and research firm specialising in quantitative analysis and strategic risk advisory.

Our domain of expertise is inference in high-dimensional and unbounded parameter spaces. We combine maximum-entropy reasoning with finite measurement to determine what follows from the available constraints — and to establish bounds where point estimates would claim more than the evidence supports.

Our foundational focus is finite measurement protocols that give rise to intrinsic fingerprints of the recording process, beyond what is measured.

Research.

Selected work on maximum-entropy inference and finite measurement protocols.

Maximum entropy

2024

An entropy-based class of moving averages

Andreas Kull. Journal of Investment Strategies, 13(1), 1–13.

Maximum-entropy kernels unify familiar moving averages and a broader class of backward filters.

View paper

2022

A novel derivation and interpretation of the Kelly criterion

Andreas Kull. Journal of Investment Strategies, 11(2), 47–58.

An information-theoretic derivation of least-biased investment strategies and their link to the Kelly criterion.

View paper

Finite measurement

Forthcoming

Counting, Measurement, and the Farey Fingerprint: A Constitutive Framework with an Arithmetic Signature

Andreas Kull.

White papers

2003

A Unifying Approach to Pricing Insurance and Financial Risk

Andreas Kull. Casualty Actuarial Society Forum, Winter 2003, 317–350.

Maximum entropy selects a martingale measure that connects insurance and financial risk pricing.

Read white paper

Get in touch.

info@apeirics.com