Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Fujihara, Akihiro"'
Autor:
Fujihara, Akihiro
Some blockchain networks employ a distributed consensus algorithm featuring Byzantine fault tolerance. Notably, certain public chains, such as Cosmos and Tezos, which operate on a proof-of-stake mechanism, have adopted this algorithm. While it is com
Externí odkaz:
http://arxiv.org/abs/2407.14299
Autor:
Yanagihara, Takaaki, Fujihara, Akihiro
We previously proposed a cross-referencing method for enabling multiple peer-to-peer network domains to manage their own public blockchains and periodically exchanging the state of the latest fixed block in the blockchain with hysteresis signatures a
Externí odkaz:
http://arxiv.org/abs/2107.12981
Autor:
Fujihara, Akihiro, Miwa, Hiroyoshi
In recent years, mobility models have been reconsidered based on findings by analyzing some big datasets collected by GPS sensors, cellphone call records, and Geotagging. To understand the fundamental statistical properties of the frequency of serend
Externí odkaz:
http://arxiv.org/abs/1408.0427
A method of moment inequalities is used to derive the principle of minimum growth rate in multiplicatively interacting stochastic processes(MISPs). When a value of a power-law exponent at the tail of probability distribution function exists in a rang
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608205
Many-body stochastic processes with weighted multiplicative interactions are investigated analytically and numerically. An interaction rate between particles with quantities $x, y$ is controlled by a homogeneous symmetric kernel $K(x, y) \propto x^{w
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511625
Autor:
Yamamoto, Hiroshi, Ohtsuki, Toshiya, Fujihara, Akihiro, Tanimoto, Satoshi, Yamamoto, Keizo, Miyazima, Sasuke
Publikováno v:
Japan J. Indust. Appl. Math. 24, 211-218 (2007).
The z-transform technique is used to investigate the model for distribution of high-tax payers, which is proposed by two of the authors (K. Y and S. M) and others. Our analysis shows an asymptotic power-law of this model with the exponent -5/2 when a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510693
Publikováno v:
Prog. Theor. Phys. Suppl. 162, 212 (2006)
Analytical and numerical studies on many-body stochastic processes with multiplicative interactions are reviewed. The method of moment relations is used to investigate effects of asymmetry and randomness in interactions. Probability distribution func
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508615
Publikováno v:
PHYSICAL REVIEW E 70, 031106 (2004)
We consider stochastic processes where randomly chosen particles with positive quantities x, y (> 0) interact and exchange the quantities asymmetrically by the rule x' = c{(1-a) x + b y}, y' = d{a x + (1-b) y} (x \ge y), where (0 \le) a, b (\le 1) an
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506785
Two-component sandpile models are investigated numerically and theoretically. Monte Calro simulations are performed to show that probability distribution functions of avalanche size and lifetime obey power laws whose exponents are approximately equal
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506759