International Business Machines Corporation

Martin Schmid

Jan Kleindienst

Timothy Durniak

Oliver C W Blodgett

Mikaela R Moore

Duncan S Anderson

Arthur Kantor

A mechanism is provided for verifying an identity of a user using dynamically generated questions based on transactions conducted by the user. Responsive to receiving a request to verify the identity of the user, one or more transaction based sources associated with the user are scanned for a set of transactions conducted by the user within a first predetermined time frame of a current time. A subset of transactions from the set of transactions are randomly selected as the basis for forming a set of questions to be used to verify the identity of the user. The set of questions are generated such that the user is required to identify one or more details about the subset of transactions in order to verify the user's identity. Responsive to the user correctly answering the one or more details about the subset of transactions, the user is authenticated.

Multiple-point cognitive identity challenge system

A mechanism is provided for generating a natural language question for a given input text. The input text is parsed using a minimal recursion semantics (MRS) generating grammar to obtain a minimal recursion semantics (MRS) representation of the input text. Semantic rote labelling transforms the input text into at least one semantic association of a verb and semantic arguments of the verb, the semantic arguments of the verb being fragments of the input text. A question type is received for at least one verb/semantic argument association. The MRS representation of the input text is transformed into a MRS representation of one or more questions based on the at least one semantic association of the verb and respective question types. At least one question of the one or more questions is generated based on the MRS representation of the at least one question using the MRS generating grammar.

Automatic question generation from natural text

Growing community of inventors

Stare Hradiste, Czechia

Martin Schmid