3 results about "Phrase search" patented technology

A document reading comprehension support system which presents information necessary for a user with high accuracy is provided. A reading comprehension support system which receives a designated document; creates a first graph representing a structure of the designated document with words or phrases contained in the designated document; outputs two or more words or phrases contained in the first graph; receives a plurality of designated words or phrases from the output words or phrases; searches the first graph with the plurality of designated words or phrases; and outputs a search result, is provided. As the search result, at least a second graph representing a shortest path between any two of the plurality of designated words or phrases in the first graph can be output. The shortest path is a path connecting any two of the plurality of designated words or phrases through at least one complementary word or phrase. The complementary word or phrase is a word or phrase different from the plurality of designated words or phrases.

A receiving apparatus is provided that includes circuitry configured to perform a search process of searching for one of a channel or a content on the basis of a phrase that is recognized from uttered speech, select one of a plurality of channels or one of a plurality of contents obtained through the searching in accordance with priority that is based on at least one of a viewing history, preference information of a user, or time information, and display, on a display, item images representing the plurality of channels or the plurality of contents obtained through the searching. Each of the item images includes a reading item in a form of character information displayed on the display for speech input corresponding to one of the plurality of channels or the plurality of contents. The item images further include at least one of a thumbnail image, a progress bar, or a broadcast or viewing state indicator.

The invention provides a phrase searchable encryption method and device based on quantum key distribution and a medium, and relates to the technical field of information security. The method comprises the following steps: encrypting each file in a file set by adopting a preset encryption key in a preset double-layer key to obtain an encrypted ciphertext set of each file; analyzing each file to obtain a phrase sequence of each file; according to a preset index key in the preset double-layer key and the phrase sequence of each file, generating a phrase encryption index of each file; and sending the encrypted ciphertext set, the phrase encryption index and an extended inverted index to a cloud server, the extended inverted index being used for indicating the file ciphertext identifier of each phrase in the phrase sequence. By constructing the phrase encryption index, the phrase sequence and position relevance are accurately captured, accurate matching of a complete phrase sequence in an encryption environment is supported, and the phrase search accuracy is remarkably improved.