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March 5, 2015

Trinity = Information + Electronics + Mechanics

By combining information technology and science, electronics, and mechanics, we can probably realize <something> completely new. A scholarship that combines the above three can be called "Trinity Engineering" or "Trinity Science". By using relatively recently enabled tooles such as CAD and 3D printers, one can create new things personally or by a small group. This creation is manufacturing and research at the same time.


August 18, 2013

Natural-Direction-Consistent 3D-Design and -Printing Methods (self-explanatory version)


I presented a poster titled “A Method of 3D Printing which is Consistent with Natural Direction in Shape”, in SFF Symposium 2013. The poster is not sufficiently self-explanatory, so a more self-explanetory version is presented here.

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Keywords: 3D printing, Three-dimensional printing, Solid Free-form Fabrication, SFF, Fused deposition modeling, FDM, Additive Manufacturing

March 31, 2007

Computation with randomized order

Recently, computation methods with randomness are widely studied. Evolutionary computation including genetic algorithms and genetic programming are examples of such methods. Computation using simulated annealing, such as Bolzmann Machine, and methods for increasing efficiency using randomization in classical algorithms are also studied. The randomized computation models I previous studied, i.e., Chemical Computation Model (CCM) and randomized cellular automata (RACA), also used randomized computation.

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Keywords: CCM, Chemical Casting Model, Chemical Computation Model, Randomized cellular automaton, Asynchronous cellular automaton, Randomized cellular automata, Asynchronous cellular automata, Randomized computation, Emergent computation, Rule-based computation, Rule-based problem solving

October 18, 2006

Software and hardware

This entry focuses on my hobby rather than research.

To be described.

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Keywords: Software, Hardware, Electronic craft, Audio fan, Audio mania, Stereo amplifier, Microcomputer, Compiler, Supercomputer, Wintel PC, Personal computer, Hobby

Fusion of digital and analog

One of my research focus that is common to my several research themes is, in short, "fusion of digital and analog". There was so-called analog computer, but now it has become old fashioned. Nowadays, the word "computer" certainly means a digital computer. However, human senses are inherently analog, so I think computers should come close to analog senses for the sake of ease of use. It means that combination or fusion of good points of digital and analog is required. Although analog computers were dead, neural networks that replaced analog computers (?!) had some good points of analog things. Since I was stimulated by them, I thought of fusion of digital and analog very frequently.

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Keywords: CCM, Chemical Casting Model, Chemical Computation Model, Axis-specified search, voiscape, Digital, Analog, Human sense, Ease of use

The N queens problem


It is time consuming to solve the N queens problem (See the description below), as same as other constraint-satisfaction problems. Therefore, many methods are deviced to solve it faster. In my research, I often used this problem as an example too.

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Keywords: N queens problem, Eight-queens problem, Vectorization of symbol-processing, CCM, Chemical Casting Model, Chemical Computation Model, Neural network, Genetic algorithm, Randomized computation, Stochastic computation

October 16, 2006

Purpose of this blog

When I became a research scientist, I decided my research themes according to my preference. However, I moved again and again to various research areas according to the needs of my company and societies. Those themes do not seem to be related each other at a glance. However, there are common backgrounds or philosophies among them. In this blog, I will write such a relatively heavy topics that spread among two or more research themes. Initially, I intended to write such issues in my general blog, but I changed my mind to separate them. Relatively light topics on one research theme are described in the general blog. I also made a Japanese version of this blog. By the way, the research themes in my company are described, but I write them as a research scientist and my company has no concern to these descriptions.
Keywords: Research themes, Background of research

February 3, 2005

My lifework

I have studied CCM (Chemical Computation Model) for emergent computation, axis-specified search, voiscape (a virtual "sound room" based communication medium), and so on. There are common "themes" among the above three researches. They are "fusion of digital and analog" and "fusion of symbols and subsymbols".

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Keywords: Analog, Digital, Subsymbolic, voiscape, Emergent computation, CCM, Chemical Casting Model, Chemical Computation Model, Axis-specified search