Nippon Telegraph and Telephone Corporation

Nobuaki Hiroshima

Mitsuru Mochizuki

Osamu Matsuda

Hitoshi Seshimo

Takashi Nakamura

Setsuo Yamada

Appropriate network data for an indoor map can be efficiently generated using input data including a structure of an indoor space. In a network data generation device () that generates, from the input data including at least the structure of the indoor space and information indicating a property based on the structure of the indoor space, network data, the network data including a link representing a movable space on a map and a node that is a starting point or an ending point of the link, a link/node generation unit () generates a set of links and a set of nodes based on the input data.

Network data generator, network data generation method, and program

To provide a speech recognition results re-ranking technology for re-ranking speech recognition results so as to render speech recognition results suitable for intended use of speech recognition while reducing preparation costs required prior to execution of re-ranking processing of speech recognition results. A speech recognition results re-ranking device includes: a speech recognition unitthat generates a speech recognition result set with recognition score from speech data; and a re-ranking unitthat generates a speech recognition result set with integrated score from the speech recognition result set with recognition score by using a word vector expression database, a cluster center vector expression database, and a normalized knowledge information word DF value database.

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Yokosuka, Japan

Nobuaki Hiroshima