Abstract: In an approach for generating a user-specific personal corpus, a processor creates a basic corpus for a first user using a first set of data sources, wherein the basic corpus includes one or more basic words and one or more vectors of the one or more basic words. A processor extracts a set of text from a second set of data sources associated with the first user. Responsive to finding an unknown word included in the set of text extracted, a processor updates the basic corpus, wherein the basic corpus is updated by replacing a vector of the unknown word with an average vector of the one or more basic words in the basic corpus created and registering the unknown word in a first personal corpus.

Abstract: An electric working machine includes: a machine body; a motor mounted on the machine body and driven by electric power supplied from a battery; a working part driven by motive power of the motor to perform work; an operation part operated by a user to control the operation of the motor; and a display device disposed on the machine body and including a display. The display device is disposed to be separated forward from the operation part.

Abstract: A solder composition of the invention includes: a flux composition containing a component (A) in a form of a rosin-based resin, a component (B) in a form of an activator, a component (C) in a form of a solvent and a component (D) in a form of a thixotropic agent; and a component (E) in a form of a solder powder. The component (C) in a form of the solvent contains a component (C1) in a form of a isobornyl cyclohexanol and a component (C2) in a form of a solvent whose viscosity at 20 degrees C. is 10 mPa·s or less and whose boiling point ranges from 220 degrees C. to 245 degrees C.

Abstract: A solder composition of the invention includes: a flux composition containing a component (A) in a form of a rosin-based resin, a component (B) in a form of an activator, a component (C) in a form of a solvent and a component (D) in a form of a thixotropic agent; and a component (E) in a form of a solder powder. The component (C) in a form of the solvent contains a component (C1) in a form of a isobornyl cyclohexanol and a component (C2) in a form of a solvent whose viscosity at 20 degrees C. is 10 mPa·s or less and whose boiling point ranges from 220 degrees C. to 245 degrees C.