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item.go
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item.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 glove
import (
"fmt"
"math"
co "github.com/wujunfeng1/wego/pkg/corpus/cooccurrence"
"github.com/wujunfeng1/wego/pkg/corpus/cooccurrence/encode"
"github.com/wujunfeng1/wego/pkg/util/clock"
)
type item struct {
l1, l2 int
f float64
coef float64
}
func (g *glove) makeItems(cooc *co.Cooccurrence) []item {
em := cooc.EncodedMatrix()
res, idx, clk := make([]item, len(em)), 0, clock.New()
for enc, f := range em {
u1, u2 := encode.DecodeBigram(enc)
l1, l2 := int(u1), int(u2)
coef := 1.
if f < float64(g.opts.Xmax) {
coef = math.Pow(f/float64(g.opts.Xmax), g.opts.Alpha)
}
res[idx] = item{
l1: l1,
l2: l2,
f: math.Log(f),
coef: coef,
}
idx++
g.verbose.Do(func() {
if idx%g.opts.LogBatch == 0 {
fmt.Printf("build %d items %v\r", idx, clk.AllElapsed())
}
})
}
g.verbose.Do(func() {
fmt.Printf("build %d items %v\r\n", idx, clk.AllElapsed())
})
return res
}