Class QualityMetrics (0.49.0)

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public final class QualityMetrics extends GeneratedMessageV3 implements QualityMetricsOrBuilder

Describes the metrics produced by the evaluation.

Protobuf type google.cloud.discoveryengine.v1alpha.QualityMetrics

Inheritance

Object > AbstractMessageLite<MessageType,BuilderType> > AbstractMessage > GeneratedMessageV3 > QualityMetrics

Implements

QualityMetricsOrBuilder

Inherited Members

AbstractMessage.equals(Object)

AbstractMessage.findInitializationErrors()

AbstractMessage.getInitializationErrorString()

AbstractMessage.hashBoolean(boolean)

AbstractMessage.hashCode()

AbstractMessage.hashEnum(Internal.EnumLite)

AbstractMessage.hashEnumList(List<? extends Internal.EnumLite>)

AbstractMessage.hashFields(int,Map<Descriptors.FieldDescriptor,Object>)

AbstractMessage.hashLong(long)

AbstractMessage.toString()

AbstractMessageLite.<T>addAll(Iterable<T>,Collection<? super T>)

AbstractMessageLite.<T>addAll(Iterable<T>,List<? super T>)

AbstractMessageLite.checkByteStringIsUtf8(ByteString)

AbstractMessageLite.toByteArray()

AbstractMessageLite.toByteString()

AbstractMessageLite.writeDelimitedTo(OutputStream)

AbstractMessageLite.writeTo(OutputStream)

com.google.protobuf.GeneratedMessageV3.<ListT>makeMutableCopy(ListT)

com.google.protobuf.GeneratedMessageV3.<ListT>makeMutableCopy(ListT,int)

GeneratedMessageV3.<M>parseDelimitedWithIOException(Parser<M>,InputStream)

GeneratedMessageV3.<M>parseDelimitedWithIOException(Parser<M>,InputStream,ExtensionRegistryLite)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,CodedInputStream)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,CodedInputStream,ExtensionRegistryLite)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,InputStream)

GeneratedMessageV3.<M>parseWithIOException(Parser<M>,InputStream,ExtensionRegistryLite)

com.google.protobuf.GeneratedMessageV3.<T>emptyList(java.lang.Class<T>)

GeneratedMessageV3.<V>serializeBooleanMapTo(CodedOutputStream,MapField<Boolean,V>,MapEntry<Boolean,V>,int)

GeneratedMessageV3.<V>serializeIntegerMapTo(CodedOutputStream,MapField<Integer,V>,MapEntry<Integer,V>,int)

GeneratedMessageV3.<V>serializeLongMapTo(CodedOutputStream,MapField<Long,V>,MapEntry<Long,V>,int)

GeneratedMessageV3.<V>serializeStringMapTo(CodedOutputStream,MapField<String,V>,MapEntry<String,V>,int)

GeneratedMessageV3.canUseUnsafe()

GeneratedMessageV3.computeStringSize(int,Object)

GeneratedMessageV3.computeStringSizeNoTag(Object)

GeneratedMessageV3.emptyBooleanList()

GeneratedMessageV3.emptyDoubleList()

GeneratedMessageV3.emptyFloatList()

GeneratedMessageV3.emptyIntList()

GeneratedMessageV3.emptyLongList()

GeneratedMessageV3.getAllFields()

GeneratedMessageV3.getDescriptorForType()

GeneratedMessageV3.getField(Descriptors.FieldDescriptor)

GeneratedMessageV3.getOneofFieldDescriptor(Descriptors.OneofDescriptor)

GeneratedMessageV3.getParserForType()

GeneratedMessageV3.getRepeatedField(Descriptors.FieldDescriptor,int)

GeneratedMessageV3.getRepeatedFieldCount(Descriptors.FieldDescriptor)

GeneratedMessageV3.getSerializedSize()

GeneratedMessageV3.getUnknownFields()

GeneratedMessageV3.hasField(Descriptors.FieldDescriptor)

GeneratedMessageV3.hasOneof(Descriptors.OneofDescriptor)

GeneratedMessageV3.internalGetFieldAccessorTable()

GeneratedMessageV3.internalGetMapField(int)

com.google.protobuf.GeneratedMessageV3.internalGetMapFieldReflection(int)

GeneratedMessageV3.isInitialized()

GeneratedMessageV3.isStringEmpty(Object)

GeneratedMessageV3.makeExtensionsImmutable()

GeneratedMessageV3.mergeFromAndMakeImmutableInternal(CodedInputStream,ExtensionRegistryLite)

GeneratedMessageV3.mutableCopy(Internal.BooleanList)

GeneratedMessageV3.mutableCopy(Internal.DoubleList)

GeneratedMessageV3.mutableCopy(Internal.FloatList)

GeneratedMessageV3.mutableCopy(Internal.IntList)

GeneratedMessageV3.mutableCopy(Internal.LongList)

GeneratedMessageV3.newBooleanList()

GeneratedMessageV3.newBuilderForType(AbstractMessage.BuilderParent)

GeneratedMessageV3.newBuilderForType(GeneratedMessageV3.BuilderParent)

GeneratedMessageV3.newDoubleList()

GeneratedMessageV3.newFloatList()

GeneratedMessageV3.newInstance(GeneratedMessageV3.UnusedPrivateParameter)

GeneratedMessageV3.newIntList()

GeneratedMessageV3.newLongList()

GeneratedMessageV3.parseUnknownField(CodedInputStream,UnknownFieldSet.Builder,ExtensionRegistryLite,int)

GeneratedMessageV3.parseUnknownFieldProto3(CodedInputStream,UnknownFieldSet.Builder,ExtensionRegistryLite,int)

GeneratedMessageV3.writeReplace()

GeneratedMessageV3.writeString(CodedOutputStream,int,Object)

GeneratedMessageV3.writeStringNoTag(CodedOutputStream,Object)

GeneratedMessageV3.writeTo(CodedOutputStream)

Object.clone()

Object.finalize()

Object.getClass()

Object.notify()

Object.notifyAll()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Fields

DOC_NDCG_FIELD_NUMBER

public static final int DOC_NDCG_FIELD_NUMBER

Field Value
Type	Description
int

DOC_PRECISION_FIELD_NUMBER

public static final int DOC_PRECISION_FIELD_NUMBER

Field Value
Type	Description
int

DOC_RECALL_FIELD_NUMBER

public static final int DOC_RECALL_FIELD_NUMBER

Field Value
Type	Description
int

PAGE_NDCG_FIELD_NUMBER

public static final int PAGE_NDCG_FIELD_NUMBER

Field Value
Type	Description
int

PAGE_RECALL_FIELD_NUMBER

public static final int PAGE_RECALL_FIELD_NUMBER

Field Value
Type	Description
int

Static Methods

getDefaultInstance()

public static QualityMetrics getDefaultInstance()

Returns
Type	Description
QualityMetrics

getDescriptor()

public static final Descriptors.Descriptor getDescriptor()

Returns
Type	Description
Descriptor

newBuilder()

public static QualityMetrics.Builder newBuilder()

Returns
Type	Description
QualityMetrics.Builder

newBuilder(QualityMetrics prototype)

public static QualityMetrics.Builder newBuilder(QualityMetrics prototype)

Parameter
Name	Description
prototype	QualityMetrics

Returns
Type	Description
QualityMetrics.Builder

parseDelimitedFrom(InputStream input)

public static QualityMetrics parseDelimitedFrom(InputStream input)

Parameter
Name	Description
input	InputStream

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
IOException

parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

public static QualityMetrics parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
input	InputStream
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
IOException

parseFrom(byte[] data)

public static QualityMetrics parseFrom(byte[] data)

Parameter
Name	Description
data	byte[]

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)

public static QualityMetrics parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
data	byte[]
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(ByteString data)

public static QualityMetrics parseFrom(ByteString data)

Parameter
Name	Description
data	ByteString

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)

public static QualityMetrics parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
data	ByteString
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(CodedInputStream input)

public static QualityMetrics parseFrom(CodedInputStream input)

Parameter
Name	Description
input	CodedInputStream

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
IOException

parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)

public static QualityMetrics parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
input	CodedInputStream
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
IOException

parseFrom(InputStream input)

public static QualityMetrics parseFrom(InputStream input)

Parameter
Name	Description
input	InputStream

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
IOException

parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

public static QualityMetrics parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
input	InputStream
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
IOException

parseFrom(ByteBuffer data)

public static QualityMetrics parseFrom(ByteBuffer data)

Parameter
Name	Description
data	ByteBuffer

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
InvalidProtocolBufferException

parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)

public static QualityMetrics parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)

Parameters
Name	Description
data	ByteBuffer
extensionRegistry	ExtensionRegistryLite

Returns
Type	Description
QualityMetrics

Exceptions
Type	Description
InvalidProtocolBufferException

parser()

public static Parser<QualityMetrics> parser()

Returns
Type	Description
Parser<QualityMetrics>

Methods

equals(Object obj)

public boolean equals(Object obj)

Parameter
Name	Description
obj	Object

Returns
Type	Description
boolean

Overrides

AbstractMessage.equals(Object other)

getDefaultInstanceForType()

public QualityMetrics getDefaultInstanceForType()

Returns
Type	Description
QualityMetrics

getDocNdcg()

public QualityMetrics.TopkMetrics getDocNdcg()

Normalized discounted cumulative gain (NDCG) per document, at various top-k cutoff levels.

NDCG measures the ranking quality, giving higher relevance to top results.

Example (top-3): Suppose SampleQuery with three retrieved documents (D1, D2, D3) and binary relevance judgements (1 for relevant, 0 for not relevant):

Retrieved: [D3 (0), D1 (1), D2 (1)] Ideal: [D1 (1), D2 (1), D3 (0)]

Calculate NDCG@3 for each SampleQuery:

• DCG@3: 0/log2(1+1) + 1/log2(2+1) + 1/log2(3+1) = 1.13
• Ideal DCG@3: 1/log2(1+1) + 1/log2(2+1) + 0/log2(3+1) = 1.63
• NDCG@3: 1.13/1.63 = 0.693

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_ndcg = 3;

Returns
Type	Description
QualityMetrics.TopkMetrics	The docNdcg.

getDocNdcgOrBuilder()

public QualityMetrics.TopkMetricsOrBuilder getDocNdcgOrBuilder()

Normalized discounted cumulative gain (NDCG) per document, at various top-k cutoff levels.

NDCG measures the ranking quality, giving higher relevance to top results.

Example (top-3): Suppose SampleQuery with three retrieved documents (D1, D2, D3) and binary relevance judgements (1 for relevant, 0 for not relevant):

Retrieved: [D3 (0), D1 (1), D2 (1)] Ideal: [D1 (1), D2 (1), D3 (0)]

Calculate NDCG@3 for each SampleQuery:

• DCG@3: 0/log2(1+1) + 1/log2(2+1) + 1/log2(3+1) = 1.13
• Ideal DCG@3: 1/log2(1+1) + 1/log2(2+1) + 0/log2(3+1) = 1.63
• NDCG@3: 1.13/1.63 = 0.693

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_ndcg = 3;

Returns
Type	Description
QualityMetrics.TopkMetricsOrBuilder

getDocPrecision()

public QualityMetrics.TopkMetrics getDocPrecision()

Precision per document, at various top-k cutoff levels.

Precision is the fraction of retrieved documents that are relevant.

Example (top-5):

• For a single SampleQuery, If 4 out of 5 retrieved documents in the top-5 are relevant, precision@5 = 4/5 = 0.8

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_precision = 2;

Returns
Type	Description
QualityMetrics.TopkMetrics	The docPrecision.

getDocPrecisionOrBuilder()

public QualityMetrics.TopkMetricsOrBuilder getDocPrecisionOrBuilder()

Precision per document, at various top-k cutoff levels.

Precision is the fraction of retrieved documents that are relevant.

Example (top-5):

• For a single SampleQuery, If 4 out of 5 retrieved documents in the top-5 are relevant, precision@5 = 4/5 = 0.8

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_precision = 2;

Returns
Type	Description
QualityMetrics.TopkMetricsOrBuilder

getDocRecall()

public QualityMetrics.TopkMetrics getDocRecall()

Recall per document, at various top-k cutoff levels.

Recall is the fraction of relevant documents retrieved out of all relevant documents.

Example (top-5):

• For a single SampleQuery, If 3 out of 5 relevant documents are retrieved in the top-5, recall@5 = 3/5 = 0.6

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_recall = 1;

Returns
Type	Description
QualityMetrics.TopkMetrics	The docRecall.

getDocRecallOrBuilder()

public QualityMetrics.TopkMetricsOrBuilder getDocRecallOrBuilder()

Recall per document, at various top-k cutoff levels.

Recall is the fraction of relevant documents retrieved out of all relevant documents.

Example (top-5):

• For a single SampleQuery, If 3 out of 5 relevant documents are retrieved in the top-5, recall@5 = 3/5 = 0.6

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_recall = 1;

Returns
Type	Description
QualityMetrics.TopkMetricsOrBuilder

getPageNdcg()

public QualityMetrics.TopkMetrics getPageNdcg()

Normalized discounted cumulative gain (NDCG) per page, at various top-k cutoff levels.

NDCG measures the ranking quality, giving higher relevance to top results.

Example (top-3): Suppose SampleQuery with three retrieved pages (P1, P2, P3) and binary relevance judgements (1 for relevant, 0 for not relevant):

Retrieved: [P3 (0), P1 (1), P2 (1)] Ideal: [P1 (1), P2 (1), P3 (0)]

Calculate NDCG@3 for SampleQuery:

• DCG@3: 0/log2(1+1) + 1/log2(2+1) + 1/log2(3+1) = 1.13
• Ideal DCG@3: 1/log2(1+1) + 1/log2(2+1) + 0/log2(3+1) = 1.63
• NDCG@3: 1.13/1.63 = 0.693

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics page_ndcg = 5;

Returns
Type	Description
QualityMetrics.TopkMetrics	The pageNdcg.

getPageNdcgOrBuilder()

public QualityMetrics.TopkMetricsOrBuilder getPageNdcgOrBuilder()

Normalized discounted cumulative gain (NDCG) per page, at various top-k cutoff levels.

NDCG measures the ranking quality, giving higher relevance to top results.

Example (top-3): Suppose SampleQuery with three retrieved pages (P1, P2, P3) and binary relevance judgements (1 for relevant, 0 for not relevant):

Retrieved: [P3 (0), P1 (1), P2 (1)] Ideal: [P1 (1), P2 (1), P3 (0)]

Calculate NDCG@3 for SampleQuery:

• DCG@3: 0/log2(1+1) + 1/log2(2+1) + 1/log2(3+1) = 1.13
• Ideal DCG@3: 1/log2(1+1) + 1/log2(2+1) + 0/log2(3+1) = 1.63
• NDCG@3: 1.13/1.63 = 0.693

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics page_ndcg = 5;

Returns
Type	Description
QualityMetrics.TopkMetricsOrBuilder

getPageRecall()

public QualityMetrics.TopkMetrics getPageRecall()

Recall per page, at various top-k cutoff levels.

Recall is the fraction of relevant pages retrieved out of all relevant pages.

Example (top-5):

• For a single SampleQuery, if 3 out of 5 relevant pages are retrieved in the top-5, recall@5 = 3/5 = 0.6

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics page_recall = 4;

Returns
Type	Description
QualityMetrics.TopkMetrics	The pageRecall.

getPageRecallOrBuilder()

public QualityMetrics.TopkMetricsOrBuilder getPageRecallOrBuilder()

Recall per page, at various top-k cutoff levels.

Recall is the fraction of relevant pages retrieved out of all relevant pages.

Example (top-5):

• For a single SampleQuery, if 3 out of 5 relevant pages are retrieved in the top-5, recall@5 = 3/5 = 0.6

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics page_recall = 4;

Returns
Type	Description
QualityMetrics.TopkMetricsOrBuilder

getParserForType()

public Parser<QualityMetrics> getParserForType()

Returns
Type	Description
Parser<QualityMetrics>

Overrides

GeneratedMessageV3.getParserForType()

getSerializedSize()

public int getSerializedSize()

Returns
Type	Description
int

Overrides

GeneratedMessageV3.getSerializedSize()

hasDocNdcg()

public boolean hasDocNdcg()

Normalized discounted cumulative gain (NDCG) per document, at various top-k cutoff levels.

NDCG measures the ranking quality, giving higher relevance to top results.

Example (top-3): Suppose SampleQuery with three retrieved documents (D1, D2, D3) and binary relevance judgements (1 for relevant, 0 for not relevant):

Retrieved: [D3 (0), D1 (1), D2 (1)] Ideal: [D1 (1), D2 (1), D3 (0)]

Calculate NDCG@3 for each SampleQuery:

• DCG@3: 0/log2(1+1) + 1/log2(2+1) + 1/log2(3+1) = 1.13
• Ideal DCG@3: 1/log2(1+1) + 1/log2(2+1) + 0/log2(3+1) = 1.63
• NDCG@3: 1.13/1.63 = 0.693

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_ndcg = 3;

Returns
Type	Description
boolean	Whether the docNdcg field is set.

hasDocPrecision()

public boolean hasDocPrecision()

Precision per document, at various top-k cutoff levels.

Precision is the fraction of retrieved documents that are relevant.

Example (top-5):

• For a single SampleQuery, If 4 out of 5 retrieved documents in the top-5 are relevant, precision@5 = 4/5 = 0.8

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_precision = 2;

Returns
Type	Description
boolean	Whether the docPrecision field is set.

hasDocRecall()

public boolean hasDocRecall()

Recall per document, at various top-k cutoff levels.

Recall is the fraction of relevant documents retrieved out of all relevant documents.

Example (top-5):

• For a single SampleQuery, If 3 out of 5 relevant documents are retrieved in the top-5, recall@5 = 3/5 = 0.6

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics doc_recall = 1;

Returns
Type	Description
boolean	Whether the docRecall field is set.

hasPageNdcg()

public boolean hasPageNdcg()

Normalized discounted cumulative gain (NDCG) per page, at various top-k cutoff levels.

NDCG measures the ranking quality, giving higher relevance to top results.

Example (top-3): Suppose SampleQuery with three retrieved pages (P1, P2, P3) and binary relevance judgements (1 for relevant, 0 for not relevant):

Retrieved: [P3 (0), P1 (1), P2 (1)] Ideal: [P1 (1), P2 (1), P3 (0)]

Calculate NDCG@3 for SampleQuery:

• DCG@3: 0/log2(1+1) + 1/log2(2+1) + 1/log2(3+1) = 1.13
• Ideal DCG@3: 1/log2(1+1) + 1/log2(2+1) + 0/log2(3+1) = 1.63
• NDCG@3: 1.13/1.63 = 0.693

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics page_ndcg = 5;

Returns
Type	Description
boolean	Whether the pageNdcg field is set.

hasPageRecall()

public boolean hasPageRecall()

Recall per page, at various top-k cutoff levels.

Recall is the fraction of relevant pages retrieved out of all relevant pages.

Example (top-5):

• For a single SampleQuery, if 3 out of 5 relevant pages are retrieved in the top-5, recall@5 = 3/5 = 0.6

.google.cloud.discoveryengine.v1alpha.QualityMetrics.TopkMetrics page_recall = 4;

Returns
Type	Description
boolean	Whether the pageRecall field is set.

hashCode()

public int hashCode()

Returns
Type	Description
int

Overrides

AbstractMessage.hashCode()

internalGetFieldAccessorTable()

protected GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()

Returns
Type	Description
FieldAccessorTable

Overrides

GeneratedMessageV3.internalGetFieldAccessorTable()

isInitialized()

public final boolean isInitialized()

Returns
Type	Description
boolean

Overrides

GeneratedMessageV3.isInitialized()

newBuilderForType()

public QualityMetrics.Builder newBuilderForType()

Returns
Type	Description
QualityMetrics.Builder

newBuilderForType(GeneratedMessageV3.BuilderParent parent)

protected QualityMetrics.Builder newBuilderForType(GeneratedMessageV3.BuilderParent parent)

Parameter
Name	Description
parent	BuilderParent

Returns
Type	Description
QualityMetrics.Builder

Overrides

GeneratedMessageV3.newBuilderForType(GeneratedMessageV3.BuilderParent parent)

newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)

protected Object newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)

Parameter
Name	Description
unused	UnusedPrivateParameter

Returns
Type	Description
Object

Overrides

GeneratedMessageV3.newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)

toBuilder()

public QualityMetrics.Builder toBuilder()

Returns
Type	Description
QualityMetrics.Builder

writeTo(CodedOutputStream output)

public void writeTo(CodedOutputStream output)

Parameter
Name	Description
output	CodedOutputStream

Overrides

GeneratedMessageV3.writeTo(CodedOutputStream output)

Exceptions
Type	Description
IOException