System and method for dynamically determining the function of a lexical item based on context
First Claim
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1. A method for adaptively determining the attitudinal function of a lexical item occurring in a natural language document, comprising:
- determining a base valence of the lexical item;
identifying a contextual valence shifter (CVS) wherein the lexical item is within scope of the CVS;
determining an actual valence of the lexical item by adjusting the base valence based on the CVS; and
wherein the CVS is one of;
a negator, an intensifier, a presupposition, a connector, and a modal.
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Abstract
A method for adaptively determining the attitudinal function of a lexical item occurring in a natural language document, comprising determining a base valence of the lexical item; identifying a contextual valence shifter (CVS) wherein the lexical item is within scope of the CVS; and determining an actual valence of the lexical item by adjusting the base valence based on the CVS.
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Citations
45 Claims
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1. A method for adaptively determining the attitudinal function of a lexical item occurring in a natural language document, comprising:
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determining a base valence of the lexical item;
identifying a contextual valence shifter (CVS) wherein the lexical item is within scope of the CVS;
determining an actual valence of the lexical item by adjusting the base valence based on the CVS; and
wherein the CVS is one of;
a negator, an intensifier, a presupposition, a connector, and a modal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for adaptively determining the attitudinal function of a lexical item occurring in a natural language document, comprising:
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categorizing the lexical item as positive, negative or neutral to determine a base valence of the lexical item;
analyzing the lexical item in context of a contextual valence shifter (CVS) to determine an actual valence of the lexical item; and
wherein the lexical item can be a CVS; and
wherein the actual valence denotes an attitude of an author towards an entity or an event. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for adaptively determining the attitudinal function of a lexical item occurring in a natural language document, comprising:
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a base valence calculator to determine a base valence of the lexical item;
a contextual valence adjuster coupled to the base valence calculator, the contextual valence adjuster to determine an actual valence by adjusting the base valence based on a contextual valence shifter (CVS); and
wherein the CVS is one of;
a negator, an intensifier, a presupposition, a connector, and a modal. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A machine readable medium having instructions stored thereon that when executed by a processor cause a system to:
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determine a base valence of the lexical item;
identify a contextual valence shifter (CVS) wherein the lexical item is within scope of the CVS;
determine an actual valence of the lexical item by adjusting the base valence based on the CVS; and
wherein the CVS is one of;
a negator, an intensifier, a presupposition, a connector, and a modal. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification