Hokkaido University Research Profiles

Japanese

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  • Development of a High-speed Japanese Input System for Mobile Devices

    Development of a fast and easy Japanese input method for smartphones and other mobile phones

    There is still no fast and easy way to input Japanese on mobile devices (smartphones, etc.). With this research, we are developing a system that halves the number of keystrokes normally required to input Japanese characters by using a powerful learning function that matches the respective lines in the Japanese syllabary with numbers.

    Research

    This system translates strings of numbers input by degenerated keywords into a Japanese sentence with mixed Chinese characters and Japanese phonetic characters. Through degenerated keyword input, one line in the Japanese syllabary is matched with one number to allow fast and easy input. This system provides words by using inductive learning to compare the strings of numbers and the proofread translation results. Therefore, even if the dictionary is empty, the system can generate a dictionary adapted to the target field. However, input of a sequence of numbers from degenerated vowel information may cause ambiguity. To solve this problem, this system uses information on adjacent characters, top-level words and position presumption information. The use of top-level words and position presumption processing increases the number of words acquired, and the adjacent character information enables the conversion that takes connections between words into account.