$L^1$-computability, layerwise computability and Solovay reducibility

履歴
2013年7月17日出版
2013年3月27日受理
2012年9月19日投稿

タイトル
L1-computability, layerwise computability and Solovay reducibility

種類
正論文

国際会議と雑誌
Computability, 2:15-29, 2013.

Abstract
The class of the differences between two integral tests for Schnorr ran- domness is an important class related to Schnorr randomness. In this paper we study other randomness versions. We also claim that Solovay reducibility for lower semicomputable functions generalizes layerwise com- putability.

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Uniform Kurtz randomness

履歴
2013年11月4日 オンライン
2013年5月16日 投稿

タイトル
Uniform Kurtz randomness
(with Takayuki Kihara)

種類
論文

雑誌
Journal of Logic and Computation, 24 (4): 863-882, 2014
doi: 10.1093/logcom/ext054

アブストラクト
We propose studying uniform Kurtz randomness, which is the uni- form relativization of Kurtz randomness. This notion has more natural properties than the usual relativization. For instance, van Lambalgen’s theorem holds for uniform Kurtz randomness while not for (the usual relativization of) Kurtz randomness. Another advantage is that lowness for uniform Kurtz randomness has many characterizations, such as those via complexity, martingales, Kurtz tt-traceability, and Kurtz dimensional measure.

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An optimal superfarthingale and its convergence over a computable topological space

履歴
2013年10月オンライン
2011年9月3日受理
2011年6月7日投稿

タイトル
An optimal superfarthingale and its convergence over a computable topological space

種類
国際会議での査読付き論文

ジャーナル or 会議
Solomonoff 85th Memorial Conference at Melbourne, Australia.

Lecture Notes in Computer Science
Volume 7070 2013
Algorithmic Probability and Friends. Bayesian Prediction and Artificial Intelligence
Papers from the Ray Solomonoff 85th Memorial Conference, Melbourne, VIC, Australia, November 30 – December 2, 2011
http://link.springer.com/book/10.1007/978-3-642-44958-1

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