Future University Hakodate

About: Future University Hakodate is a education organization based out in Hakodate, Japan. It is known for research contribution in the topics: Network packet & Mobile ad hoc network. The organization has 485 authors who have published 1338 publications receiving 13204 citations. The organization is also known as: Mirai Daigaku (Future University) Hakodate Japan.

Exploring the uncanny valley with geminoid hi-1 in a real-world application

Abstract: This paper presents a qualitative analysis of 24 interviews with visitors of the ARS Electronica festival in September 2009 in Linz, Austria, who interacted with the android robot Geminoid HI-1, while it was tele-operated by the first author. Only 37.5% of the interviewed visitors reported an uncanny feeling with 29% even enjoying the conversation. In five cases the interviewees’ feelings even changed during the interaction with Geminoid HI-1. A number of possible improvements regarding Geminoid’s bodily movements, facial expressivity, and ability to direct its gaze became apparent, which inform our future research with and development of android robots.

Certificateless Hybrid Signcryption.

Abstract: Signcryption is a cryptographic primitive that fulfills both the functions of digital signature and public key encryption simultaneously, at a cost significantly lower than that required by the tradi- tional signature-then-encryption approach. In this paper, we address a question whether it is possible to construct a hybrid signcryption scheme in the certificateless setting. This question seems to have never been addressed in the literature. We answer the question positively in this paper. In particular, we extend the concept of signcryption tag-KEM to the certificateless setting. We show how to construct a certificateless signcryption scheme using certificateless signcryption tag-KEM. We also give an example of certificateless signcryption tag-KEM.

Digital Signatures Out of Second-Preimage Resistant Hash Functions

Abstract: We propose a new construction for Merkle authentication trees which does not require collision resistant hash functions; in contrast with previous constructions that attempted to avoid the dependency on collision resistance, our technique enjoys provable security assuming the well-understood notion of second-preimage resistance. The resulting signature scheme is existentially unforgeable when the underlying hash function is second-preimage resistant, yields shorter signatures, and is affected neither by birthday attacks nor by the recent progresses in collision-finding algorithms.

Analysis of high-resolution foreign exchange data of USD-JPY for 13 years

Abstract: We analyze high-resolution foreign exchange data consisting of 20 million data points of USD-JPY for 13 years to report firm statistical laws in distributions and correlations of exchange rate fluctuations. A conditional probability density analysis clearly shows the existence of trend-following movements at time scale of 8-ticks, about 1 minute.

Can the Pivotal mechanism induce truth-telling? An experimental study ∗

Abstract: In this paper we use a laboratory experiment toexamine the Pivotal mechanism when applied to a binarydecision on a public project of a fixed size Wefirst point out that the well-known incentivecompatibility of the Pivotal mechanism is true only in aweak sense; There are always strategies otherthan truth-telling that do no worse for a subject thantruth-telling, in any particular set of circumstancesThis weakness of the incentive compatibility ofthe Pivotal mechanism makes it difficult for subjects tounderstand that truth-telling is the unique dominantstrategy for the mechanism, unless they havecomprehensive understanding of the payoff structure,with the result that subjects often do not play thedominant strategy We suggest that this tendency todepart from the dominant strategy can be overcome byproviding subjects with more information about the payoffstructure We controlled the level of informationprovision in the laboratory and verified that thestrategies used are closer to the dominant strategywhen more information is provided Under noinformation provision conditions were outcomes poor,but under ``wide'' provision conditions, in which eachsubject experienced a variety of true personalvaluations of the project, departure from thedominant strategy was smaller in magnitude, and under``deep'' provision conditions, in which detailed payofftables were available to each subject, the rate of useof the dominant strategy increased significantly