This paper proposes a method to integrate computer specifications retrieved from multiple Web sites, to extract characteristic-data of each computer based on integrated information, and to present products suitable for a user's request. The specifications written in HTML are converted into normal forms called table structure. The quantitative attributes such as speed, capacity and dimensions are extracted by comparing them with the mean or mode of all sample data, and the qualitative ones such as kind of processor and graphics chip are extracted using knowledge provided manually. The recommended products are dynamically determined from the extracted data by a user's request and relevance feedback. Experimental results show the effectiveness of our method.

A novel operation of a flash memory cell, named DINOR (DIvided bit line NOR) operation, is proposed. This operation is based on gate-biased FN programming/FN erasing, and we found that it satisfies all basic cell characteristics such as program/erase, disturb immunity and a cycling endurance. Making a good use of this cell operation, we also proposed a new array structure applied to DINOR type cell whose bit line is divided into the main and sub bit line, having 1.82 µm2 cell size, suitable for 32 Mbit flash memory based on 0.5 µm CMOS process. In the last part of this paper, the useful and practical application of the DINOR operation to a virtual ground array architecture, realizing 1.0 µm2 cell size for a 0.5 µm 64 Mbit flash memory, is described.