Abstract: A method of searching for and providing information about a natural language query having a simple or complex sentence structure, includes: generating a mashup query language having a tree structure in a plurality of levels based on at least one query entity included in a natural language query language via a semantic analysis of the natural language query language; determining whether the plurality of levels are linked through a query entity forming each of the plurality of levels based on attribute information of the mashup query language; searching for data corresponding to the query entity forming each of the plurality of levels from a knowledge database based on a result of the determining, and deriving main information and at least one piece of entity information corresponding to the natural language query language from found data; and laying out a search result screen including the main information and the at least one piece of entity information.

Abstract: A method of searching for and providing information about a natural language query having a simple or complex sentence structure, includes: generating a mashup query language having a tree structure in a plurality of levels based on at least one query entity included in a natural language query language via a semantic analysis of the natural language query language; determining whether the plurality of levels are linked through a query entity forming each of the plurality of levels based on attribute information of the mashup query language; searching for data corresponding to the query entity forming each of the plurality of levels from a knowledge database based on a result of the determining, and deriving main information and at least one piece of entity information corresponding to the natural language query language from found data; and laying out a search result screen including the main information and the at least one piece of entity information.

Abstract: A method of fully freezing ice in a refrigerator. The method includes setting a full-frozen temperature for determining whether ice is fully frozen, and a reference ambient temperature for re-adjusting the full-frozen temperature; supplying water to the ice-making tray to thereby perform ice-making; sensing ambient temperature; sensing temperature of the ice-making tray; re-adjusting the full-frozen temperature by comparing the sensed ambient temperature with the reference ambient temperature; and if the temperature of the ice-making tray reaches the re-adjusted full-frozen temperature, driving an ice-transfer motor to transfer full-frozen ice from the ice-making tray. Thus, not fully frozen ice is prevented from being transferred, to thereby improve ice quality and avoid sticking of ice, which may occur when not fully frozen ice is broken while being transferred. A refrigerator using such a method is also disclosed.

Abstract: A method of fully freezing ice in a refrigerator. The method includes setting a full-frozen temperature for determining whether ice is fully frozen, and a reference ambient temperature for re-adjusting the full-frozen temperature; supplying water to the ice-making tray to thereby perform ice-making; sensing ambient temperature; sensing temperature of the ice-making tray; re-adjusting the full-frozen temperature by comparing the sensed ambient temperature with the reference ambient temperature; and if the temperature of the ice-making tray reaches the re-adjusted full-frozen temperature, driving an ice-transfer motor to transfer full-frozen ice from the ice-making tray. Thus, not fully frozen ice is prevented from being transferred, to thereby improve ice quality and avoid sticking of ice, which may occur when not fully frozen ice is broken while being transferred. A refrigerator using such a method is also disclosed.