Yuuki Sato

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This paper studies how to reduce the amount of human supervision for identifying splogs / authentic blogs in the context of continuously updating splog data sets year by year. Following the previous works on active learning, against the task of splog / authentic blog detection, this paper empirically examines several strategies for selective sampling in(More)
This paper focuses on analyzing (Japanese) splogs based on various characteristics of keywords contained in them. We estimate the behavior of spammers when creating splogs from other sources by analyzing the characteristics of keywords contained in splogs. Since splogs often cause noises in word occurrence statistics in the blogosphere, we assume that we(More)
The motion of the lower limbs in bipedal walking is characterized by a foot-rolling motion, including heel-strike and toe-off. In this paper, the dynamical influence of this motion on walking stability is examined using a simple walking model driven by a rhythmic signal from an internal oscillator. In order to model the rolling motion, a circular arc is(More)
The effect of emitted electron from carbon nanotube (CNT), of which shape is easy to emit electrons, on the X-ray intensity radiated using a polarized pyroelectric single crystal of LiNbO<inf>3</inf> was investigated at an air pressure of approximately 7&#x00D7;10<sup>&#x2212;3</sup> Pa. The negatively charged surface of the crystal was placed opposite an(More)
This paper focuses on analyzing (Japanese) splogs based on various characteristics of keywords contained in them. We estimate the behavior of spammers when creating splogs from other sources by analyzing the characteristics of keywords contained in splogs. Since splogs often cause noises in word occurrence statistics in the blogosphere, we assume that we(More)
We have proposed a processor which can exploit valuelocalityinprogramsbyautomaticallyapplyingcomputation reuse. The processor which we call auto-memoization processor dynamically detects functions and loop iterations as reusable blocks, and stores their input sequences and results into a lookup table. When the current input sequence matches one of the(More)
Approximate computing has been studied widely in computing systems ranging from hardware to software. Approximate computing is a paradigm for reducing execution time and power consumption by tolerating some quality loss in computed results. On the other hand, we have proposed a processor called auto-memoization processor which is based on computation reuse.(More)