/
lexvec.go
94 lines (86 loc) · 2.95 KB
/
lexvec.go
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// Copyright © 2019 Makoto Ito
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"os"
"runtime/pprof"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"github.com/ike-dai/wego/builder"
"github.com/ike-dai/wego/config"
"github.com/ike-dai/wego/validate"
)
var lexvecCmd = &cobra.Command{
Use: "lexvec",
Short: "Lexvec: Matrix Factorization using Window Sampling and Negative Sampling for Improved Word Representations",
PreRun: func(cmd *cobra.Command, args []string) {
bindConfig(cmd)
bindLexvec(cmd)
},
RunE: func(cmd *cobra.Command, args []string) error {
if viper.GetBool(config.Prof.String()) {
f, err := os.Create("cpu.prof")
if err != nil {
os.Exit(1)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
return runLexvec()
},
}
func init() {
lexvecCmd.Flags().AddFlagSet(configFlagSet())
lexvecCmd.Flags().Int(config.NegativeSampleSize.String(), config.DefaultNegativeSampleSize,
"negative sample size(for negative sampling only)")
lexvecCmd.Flags().Float64(config.Theta.String(), config.DefaultTheta,
"lower limit of learning rate (lr >= initlr * theta)")
lexvecCmd.Flags().Float64(config.Smooth.String(), config.DefaultSmooth,
"smoothing value for co-occurence value")
lexvecCmd.Flags().String(config.RelationType.String(), config.DefaultRelationType.String(),
"relation type for counting co-occurrence. One of ppmi|pmi|co|logco")
}
func bindLexvec(cmd *cobra.Command) {
viper.BindPFlag(config.NegativeSampleSize.String(), cmd.Flags().Lookup(config.NegativeSampleSize.String()))
viper.BindPFlag(config.Theta.String(), cmd.Flags().Lookup(config.Theta.String()))
viper.BindPFlag(config.Smooth.String(), cmd.Flags().Lookup(config.Smooth.String()))
viper.BindPFlag(config.RelationType.String(), cmd.Flags().Lookup(config.RelationType.String()))
}
func runLexvec() error {
outputFile := viper.GetString(config.OutputFile.String())
if validate.FileExists(outputFile) {
return errors.Errorf("%s is already existed", outputFile)
}
lexvec, err := builder.NewLexvecBuilderFromViper()
if err != nil {
return err
}
mod, err := lexvec.Build()
if err != nil {
return err
}
inputFile := viper.GetString(config.InputFile.String())
if !validate.FileExists(inputFile) {
return errors.Errorf("Not such a file %s", inputFile)
}
input, err := os.Open(inputFile)
if err != nil {
return err
}
if err := mod.Train(input); err != nil {
return err
}
return mod.Save(outputFile)
}