Abstract: A failure symptom detection system includes a first storage to collect and store field data of each of a plurality of Internet of things devices, a feature extractor to acquire feature data of the field data based on a report on a failure in a service as a feeling of a user of a facility, a second storage to accumulate a failure at an occurrence of the failure associated with content of the failure as the feeling of the user, and a failure symptom detector to monitor the field data stored in the first storage, and produce, upon detecting feature data matching the feature data accumulated in the second storage, output indicating detection of a symptom of the failure associated with the feature data.

Abstract: A navigation system having a navigation controller includes a voice recognition unit for recognizing a predetermined word from the spoken utterances of a user. It also includes a destination supposition and suggestion unit for predicting an appropriate destination desired by a user, based on a user's speech, and audibly suggests the predicted destination, and destination entry unit. If the suggested destination satisfies a user, the destination entry unit enters into the navigation controller the suggested destination.

Abstract: A navigation system having a navigation controller includes a voice recognition unit for recognizing a predetermined word from the spoken utterances of a user. It also includes a destination supposition and suggestion unit for predicting an appropriate destination desired by a user, based on a user's speech, and audibly suggests the predicted destination, and destination entry unit. If the suggested destination satisfies a user, the destination entry unit enters into the navigation controller the suggested destination.