com.yahoo.search.intent.model

Class IntentModel

java.lang.Object

com.yahoo.search.intent.model.Node

com.yahoo.search.intent.model.ParentNode<InterpretationNode>

com.yahoo.search.intent.model.IntentModel

All Implemented Interfaces:

Comparable<Node>

public class IntentModel
extends ParentNode<InterpretationNode>

This is the root node of an intent model. The intent model represents the intent analysis of a query. This is a probabilistic model - the query may have multiple interpretations with different probability. Each interpretation may have multiple possible intents, making this a tree.

Author:

bratseth

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	IntentModel.InterpretationNodeComparator

Field Summary

Fields

Modifier and Type	Field and Description
private static IntentModel.InterpretationNodeComparator	inodeComp
static com.yahoo.processing.request.CompoundName	intentModelObjectName The name of the property carrying the intent model object: IntentModel
static com.yahoo.processing.request.CompoundName	intentModelStringName The name of the property carrying the intent model string: intentModel

Constructor Summary

Constructors

Constructor and Description
IntentModel() Creates an empty intent model
IntentModel(Interpretation... interpretations) Creates an intent model from some interpretations
IntentModel(List<Interpretation> interpretations) Creates an intent model from some interpretations

Method Summary

Modifier and Type	Method and Description
static IntentModel	getFrom(Query query) Returns the intent model stored at property key "intentModel" in this query, or null if none
List<String>	getSourceNames() Returns the names of the sources returned from getSources() for convenience
List<SourceNode>	getSources() Returns a flattened list of sources with a normalized appropriateness of each, sorted by decreasing appropriateness.
void	setTo(Query query) Stores this intent model at property key "intentModel" in this query
void	sortChildren() Sort interpretations by descending score order

Methods inherited from class com.yahoo.search.intent.model.ParentNode

addSources, children

Methods inherited from class com.yahoo.search.intent.model.Node

compareTo, getScore, increaseScore, setScore

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

intentModelStringName

public static final com.yahoo.processing.request.CompoundName intentModelStringName

The name of the property carrying the intent model string: intentModel

intentModelObjectName

public static final com.yahoo.processing.request.CompoundName intentModelObjectName

The name of the property carrying the intent model object: IntentModel

inodeComp

private static final IntentModel.InterpretationNodeComparator inodeComp

Constructor Detail

IntentModel

public IntentModel()

Creates an empty intent model

IntentModel

public IntentModel(List<Interpretation> interpretations)

Creates an intent model from some interpretations

IntentModel

public IntentModel(Interpretation... interpretations)

Creates an intent model from some interpretations

Method Detail

sortChildren

public void sortChildren()

Sort interpretations by descending score order

getSources

public List<SourceNode> getSources()

Returns a flattened list of sources with a normalized appropriateness of each, sorted by decreasing appropriateness. This is obtained by summing the source appropriateness vectors of each intent node weighted by the owning intent and interpretation probabilities. Sources with a resulting probability of 0 is omitted in the returned list.

getSourceNames

public List<String> getSourceNames()

Returns the names of the sources returned from getSources() for convenience

getFrom

public static IntentModel getFrom(Query query)

Returns the intent model stored at property key "intentModel" in this query, or null if none

setTo

public void setTo(Query query)

Stores this intent model at property key "intentModel" in this query