Kentaroh Toyoda

TL;DR: This paper proposes a novel product ownership management system (POMS) of RFID-attached products for anti-counterfeits that can be used in the post supply chain and implements a proof-of-concept experimental system employing a blockchain-based decentralized application platform, Ethereum.

TL;DR: A novel method using mechanism design, which is an economic approach to realize desired objectives under the situation that participants act rationally, is presented to introduce repeated competition for FL so that any rational worker follows the protocol and maximize their profits.

TL;DR: This paper proposes a number of features that can be extracted from transactions in Bitcoin that are based upon relating Bitcoin addresses with graph mining procedures and shows that about 83% of HYIP addresses are correctly classified while maintaining false positive rate less than 4.4%.

TL;DR: A novel methodology is introduced, which efficiently collects a large number of the HYIP operators’ Bitcoin addresses and identifies them based upon a novel analysis of their transactions history, based upon the rate conversion technique that mitigates the effect of Bitcoin price volatility and the sampling technique that reduces the computational amount without sacrificing the classification performance.

TL;DR: A multiclass service identification scheme in Bitcoin based on novel transaction history summarization, which is the first to propose a multi-class identification, achieves 72 % of accuracy through performance evaluation.