activity
20052012
most citedOn a simple strategy weakly forcing the strong law of large numbers in the bounded forecasting game

31 citations · 93 across the 8 of their papers we have counts for

collaborators

8 papers

math.PR2012

Bayesian logistic betting strategy against probability forecasting

Masayuki Kumon, Jing Li, Akimichi Takemura +1

We propose a betting strategy based on Bayesian logistic regression modeling for the probability forecasting game in the framework of game-theoretic probability by Shafer and Vovk…

math.ST2011

Conformal geometry of statistical manifold with application to sequential estimation

Masayuki Kumon, Akimichi Takemura, Kei Takeuchi

We present a geometrical method for analyzing sequential estimating procedures. It is based on the design principle of the second-order efficient sequential estimation provided in…

q-fin.PR2010★ 1 cited

Approximations and asymptotics of upper hedging prices in multinomial models

Ryuichi Nakajima, Masayuki Kumon, Akimichi Takemura +1

We give an exposition and numerical studies of upper hedging prices in multinomial models from the viewpoint of linear programming and the game-theoretic probability of Shafer and…

q-fin.ST2009★ 1 cited

New procedures for testing whether stock price processes are martingales

Kei Takeuchi, Akimichi Takemura, Masayuki Kumon

We propose procedures for testing whether stock price processes are martingales based on limit order type betting strategies. We first show that the null hypothesis of martingale p…

q-fin.TR2007★ 25 cited

A new formulation of asset trading games in continuous time with essential forcing of variation exponent

Kei Takeuchi, Masayuki Kumon, Akimichi Takemura

We introduce a new formulation of asset trading games in continuous time in the framework of the game-theoretic probability established by Shafer and Vovk (Probability and Finance:…

math.PR2006★ 23 cited

Game-theoretic versions of strong law of large numbers for unbounded variables

Masayuki Kumon, Akimichi Takemura, Kei Takeuchi

We consider strong law of large numbers (SLLN) in the framework of game-theoretic probability of Shafer and Vovk (2001). We prove several versions of SLLN for the case that Reality…