106 research outputs found
Can You Fool AI by Doing a 180? \unicode{x2013} A Case Study on Authorship Analysis of Texts by Arata Osada
Get PDFThis paper is our attempt at answering a twofold question covering the areas
of ethics and authorship analysis. Firstly, since the methods used for
performing authorship analysis imply that an author can be recognized by the
content he or she creates, we were interested in finding out whether it would
be possible for an author identification system to correctly attribute works to
authors if in the course of years they have undergone a major psychological
transition. Secondly, and from the point of view of the evolution of an
author's ethical values, we checked what it would mean if the authorship
attribution system encounters difficulties in detecting single authorship. We
set out to answer those questions through performing a binary authorship
analysis task using a text classifier based on a pre-trained transformer model
and a baseline method relying on conventional similarity metrics. For the test
set, we chose works of Arata Osada, a Japanese educator and specialist in the
history of education, with half of them being books written before the World
War II and another half in the 1950s, in between which he underwent a
transformation in terms of political opinions. As a result, we were able to
confirm that in the case of texts authored by Arata Osada in a time span of
more than 10 years, while the classification accuracy drops by a large margin
and is substantially lower than for texts by other non-fiction writers,
confidence scores of the predictions remain at a similar level as in the case
of a shorter time span, indicating that the classifier was in many instances
tricked into deciding that texts written over a time span of multiple years
were actually written by two different people, which in turn leads us to
believe that such a change can affect authorship analysis, and that historical
events have great impact on a person's ethical outlook as expressed in their
writings
A note on tail triviality for determinantal point processes
No full textWe give a very short proof that determinantal point processes have a trivial tail σ σ -field. This conjecture of the author has been proved by Osada and Osada as well as by Bufetov, Qiu, and Shamov. The former set of authors relied on the earlier result of the present author that the conjecture held in the discrete case, as does the present short proof
A note on tail triviality for determinantal point processes
No full textWe give a very short proof that determinantal point processes have a trivial tail σ σ -field. This conjecture of the author has been proved by Osada and Osada as well as by Bufetov, Qiu, and Shamov. The former set of authors relied on the earlier result of the present author that the conjecture held in the discrete case, as does the present short proof
On the Sanpō Taisei, an interim version of the Taisei Sankei, established in ca.1695 (Study of the History of Mathematics 2021)
No full textThe Taisei Sankei is an encyclopaedic work of Japanese mathematics compiled by three mathematicians, Seki Takakazu and his disciples, the Tatebe brothers. The compilation project began in 1683 on the initiative of the younger Takebe, Katahiro, and was completed by the elder Takebe, Kata'akira, in 1710. An interim edition in twelve volumes, entitled Sanpō Taisei, was drafted by Katahiro around 1695, but no manuscript of this edition survives. However, it is important to study the Sanpō Taisei because it is considered to be the culmination of Seki Takakazu's mathematical works. By studying the mathematical manuscripts left behind by the three mathematicians, this paper deduces which volumes of the Taisei Sankei succeed the Sanpō Taisei and how the Sanpō Taisei was compiled. We also identify the author(s) of the four manuscripts Kyūketsu Henkeisōkai, Kyūseki, Kaihō Sanshiki and Kaihō whose contents are common to some parts of the Taisei Sankei
Research on Establishment of a Standard of Traffic Impact Assessment with Integrated Database System
Get PDFPlanning support systems, such as geographical information system (GIS) and traffic flow simulation models, are widely in use in recent urban planning research. In this paper we propose a method to apply traffic impact assessment (TIA) to large-scale, commercial developments. In TIA research we often encounter the problem of increasing amount of data that is necessary for detailed investigation and analysis, as the scale of commercial developments become larger and more complex. As a result, TIA presents two problems. The first problem is the difficulty of data acquisition. The second problem is the reliability of data. As a solution, we developed an integrated database system
EFFECTS OF MOBILITY MANAGEMENT FOR PROMOTING BUS USE AND REDUCING CAR USE FOCUSING ON INDIVIDUAL HEALTH CONSCIOUSNESS
No full textDevelopment of Integrated Database System for Traffic Impact Assessment using Server Side Technology
No full text
Smart Wellness City - New Healthy Community Movements in Japan ( breakout presentation )
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