/
word2vec.go
95 lines (85 loc) · 2.22 KB
/
word2vec.go
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// Copyright © 2020 wego authors
//
// 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 word2vec
import (
"os"
"path/filepath"
"runtime/pprof"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/e-gun/wego/cmd/model/cmdutil"
"github.com/e-gun/wego/pkg/model/modelutil/vector"
"github.com/e-gun/wego/pkg/model/word2vec"
)
var (
prof bool
inputFile string
outputFile string
vectorType vector.Type
)
func New() *cobra.Command {
var opts word2vec.Options
cmd := &cobra.Command{
Use: "word2vec",
Short: "Word2Vec: Continuous Bag-of-Words and Skip-gram model",
RunE: func(cmd *cobra.Command, args []string) error {
return execute(opts)
},
}
cmdutil.AddInputFlags(cmd, &inputFile)
cmdutil.AddOutputFlags(cmd, &outputFile)
cmdutil.AddProfFlags(cmd, &prof)
cmdutil.AddVectorTypeFlags(cmd, &vectorType)
word2vec.LoadForCmd(cmd, &opts)
return cmd
}
func fileExists(path string) bool {
_, err := os.Stat(path)
return err == nil
}
func execute(opts word2vec.Options) error {
if prof {
f, err := os.Create("cpu.prof")
if err != nil {
return err
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if fileExists(outputFile) {
return errors.Errorf("%s is already existed", outputFile)
} else if !fileExists(inputFile) {
return errors.Errorf("%s is not found", inputFile)
}
if err := os.MkdirAll(filepath.Dir(outputFile), 0777); err != nil {
return err
}
output, err := os.Create(outputFile)
if err != nil {
return err
}
input, err := os.Open(inputFile)
if err != nil {
return err
}
defer input.Close()
mod, err := word2vec.NewForOptions(opts)
if err != nil {
return err
}
if err := mod.Train(input); err != nil {
return err
}
return mod.Save(output, vectorType)
}