Abstract: Provided is a construction machine in which travel operability is not impaired when a combined operation is performed in which a single-rod hydraulic cylinder is driven during a travel operation. A hydraulic excavator includes a controller that controls the delivery direction and delivery flow rate of a closed-circuit pump, opens and closes a travel switching valve and an assist switching valve, and controls the delivery flow rate of the open-circuit pump, according to a travel operation lever and a work operation lever. The controller holds the assist switching valve in a closed position irrespective of whether or not the work operation lever is operated in a case where the travel operation lever is operated.

Abstract: Provided is a product information generation system and the like capable of performing comprehensive determination using information on access to a plurality of pieces of media data from media data representing a product and generating product information.

Abstract: Provided is a product information generation system and the like capable of performing comprehensive determination using information on access to a plurality of pieces of media data from media data representing a product and generating product information.

Abstract: A pair search word, which is obtained by forming a pair of a preceding search word and a subsequent search word in the search times, is generated in accordance with an order of the search times, from search words in which intervals between the search times associated with the identical user specifying information are within a predetermined time, with reference to a search word memory means which stores the search words. A first appearance count of a pair search word among generated pair search words is calculated, a second appearance count of a reverse order pair search word obtained by reversing an order of a search time of the specific pair search word is calculated, and, when a magnitude relationship between the first appearance count and the second appearance account satisfies predetermined conditions, the preceding search word and the subsequent search word are stored as a thesaurus.

Abstract: In association with user specifying information for specifying a user who uses search words and search time specifying information for specifying search times at which search processing is executed using the search words, a pair search word which is obtained by forming a pair of a preceding search word and a subsequent search word in the search times is generated in accordance with an order of the search times, from search words in which intervals between the search times associated with the identical user specifying information are within a predetermined time, with reference to a search word memory means (12a) which stores the search words (S4).