Package io.trino.plugin.ml

Class ModelUtils

java.lang.Object

io.trino.plugin.ml.ModelUtils

public final class ModelUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static Model	deserialize(byte[] data)
static Model	deserialize(io.airlift.slice.Slice slice)
static List<Model>	deserializeModels(byte[] bytes)
static com.google.common.hash.HashCode	modelHash(io.airlift.slice.Slice slice)
static io.airlift.slice.Slice	serialize(Model model)	Serializes the model using the following format int: format version byte[32]: SHA256 hash of all following data int: id of algorithm int: length of hyperparameters section byte[]: hyperparameters (currently not used) long: length of data section byte[]: model data
static byte[]	serializeModels(Model... models)
static FeatureVector	toFeatures(SqlMap sqlMap)

Methods inherited from class java.lang.Object

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

Method Details

serialize

public static io.airlift.slice.Slice serialize(Model model)

Serializes the model using the following format int: format version byte[32]: SHA256 hash of all following data int: id of algorithm int: length of hyperparameters section byte[]: hyperparameters (currently not used) long: length of data section byte[]: model data

note: all multibyte values are in little endian

modelHash

public static com.google.common.hash.HashCode modelHash(io.airlift.slice.Slice slice)

deserialize

public static Model deserialize(byte[] data)

deserialize

public static Model deserialize(io.airlift.slice.Slice slice)

serializeModels

public static byte[] serializeModels(Model... models)

deserializeModels

public static List<Model> deserializeModels(byte[] bytes)

toFeatures

public static FeatureVector toFeatures(SqlMap sqlMap)