Information extraction from natural language texts

A computer system, comprising:

• a memory;
• a processor, coupled to the memory, the processor configured to:
• extract, from a natural language text, a first plurality of information objects;
• extract, from the natural language text, a second plurality of information objects;
• identify a set of conflicting information objects, such that a first information object of the set of conflicting information objects belongs to the first plurality of information objects and a second information object of the set of conflicting information objects belongs to the second plurality of information objects;
• and
• produce a final list of information objects extracted from the natural language text, by applying, to the set of conflicting information objects, a conflict arbitration function which performs at least one of:
• modifying the first information object, deleting the first information object, or merging two or more information objects of the set of conflicting information objects, wherein the conflict arbitration function implements a machine learning classifier yielding at least one of:
• a likelihood of the first information object and the second information object representing a same object, a level of confidence of the first information object, or a level of confidence of the second information object.

A computer-readable non-transitory storage medium comprising executable instructions that, when executed by a computer system, cause the computer system to:

• extract, from a natural language text, a first plurality of information objects by applying, to a plurality of attributes of the natural language text, a machine learning classifier yielding a degree of association of a fragment of the natural language text with a pre-defined class of information objects;
• extract, from the natural language text, a second plurality of information objects;
• identify a set of conflicting information objects, such that a first information object of the set of conflicting information objects belongs to the first plurality of information objects and a second information object of the set of conflicting information objects belongs to the second plurality of information objects;
• and
• produce a final list of information objects extracted from the natural language text, by applying, to the set of conflicting information objects, a conflict arbitration function which performs at least one of:
• modifying the first information object, deleting the first information object, or merging two or more information objects of the set of conflicting information objects.