diff --git a/consts/dict_file.go b/consts/dict_file.go
deleted file mode 100644
index 4543b06..0000000
--- a/consts/dict_file.go
+++ /dev/null
@@ -1,28 +0,0 @@
-package consts
-
-const (
-	// dict file type to loading
-
-	// LoadDictTypeIDF dict of IDF to loading
-	LoadDictTypeIDF = iota + 1
-
-	// LoadDictTypeTFIDF dict of TFIDF to loading
-	LoadDictTypeTFIDF
-
-	// LoadDictTypeBM25 dict of BM25 to loading
-	LoadDictTypeBM25
-
-	// LoadDictTypeWithPos dict of with position to loading
-	LoadDictTypeWithPos
-
-	// LoadDictCorpus dict of corpus to loading
-	LoadDictCorpus
-)
-
-const (
-	// BM25DefaultK1 default k1 value for calculate bm25
-	BM25DefaultK1 = 1.25
-
-	// BM25DefaultK1 default B value for calculate bm25
-	BM25DefaultB = 0.75
-)
diff --git a/dict_1.16.go b/dict_1.16.go
index 0b17a5c..d2dd33f 100644
--- a/dict_1.16.go
+++ b/dict_1.16.go
@@ -1,5 +1,6 @@
-// Copyright 2016 The go-ego Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
+// Copyright 2016 The go-ego Project Developers.
+//
+// See the COPYRIGHT file at the top-level directory of this distribution and at
 // https://github.com/go-ego/gse/blob/master/LICENSE
 //
 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
diff --git a/dict_1.16_test.go b/dict_1.16_test.go
index 7e33ab8..717b3e4 100644
--- a/dict_1.16_test.go
+++ b/dict_1.16_test.go
@@ -7,7 +7,6 @@ import (
 	_ "embed"
 	"testing"
 
-	"github.com/go-ego/gse/consts"
 	"github.com/go-ego/gse/types"
 	"github.com/vcaesar/tt"
 )
@@ -100,7 +99,7 @@ func TestLoadTFIDFDictStr(t *testing.T) {
 	a := []*types.LoadDictFile{}
 	a = append(a, &types.LoadDictFile{
 		FilePath: "/workspaces/gse/data/dict/zh/tf_idf.txt",
-		FileType: consts.LoadDictTypeTFIDF,
+		FileType: types.LoadDictTypeTFIDF,
 	})
 	seg.LoadTFIDFDict(a)
 }
diff --git a/hmm/extracker/tag_extracker.go b/hmm/extracker/tag_extracker.go
index 7a415da..f225f5f 100644
--- a/hmm/extracker/tag_extracker.go
+++ b/hmm/extracker/tag_extracker.go
@@ -18,7 +18,6 @@ import (
 	"sort"
 
 	"github.com/go-ego/gse"
-	"github.com/go-ego/gse/consts"
 	"github.com/go-ego/gse/hmm/relevance"
 	"github.com/go-ego/gse/hmm/segment"
 	"github.com/go-ego/gse/types"
@@ -86,10 +85,10 @@ func (t *TagExtracter) LoadBM25(setting *types.BM25Setting, fileList []*types.Lo
 	for _, v := range fileList {
 		switch v.FileType {
 
-		case consts.LoadDictCorpus:
+		case types.LoadDictCorpus:
 			corpusBM25 = append(corpusBM25, v.FilePath)
 
-		case consts.LoadDictTypeBM25:
+		case types.LoadDictTypeBM25:
 			dictBM25 = append(dictBM25, v.FilePath)
 		}
 	}
diff --git a/hmm/relevance/bm25.go b/hmm/relevance/bm25.go
index bb0ef02..0018bbf 100644
--- a/hmm/relevance/bm25.go
+++ b/hmm/relevance/bm25.go
@@ -19,7 +19,6 @@ import (
 	"unicode/utf8"
 
 	"github.com/go-ego/gse"
-	"github.com/go-ego/gse/consts"
 	"github.com/go-ego/gse/hmm/segment"
 	"github.com/go-ego/gse/hmm/stopwords"
 	"github.com/go-ego/gse/types"
@@ -74,7 +73,7 @@ func (bm25 *BM25) LoadDict(files ...string) error {
 	for i, v := range files {
 		dictFiles[i] = &types.LoadDictFile{
 			FilePath: v,
-			FileType: consts.LoadDictTypeBM25,
+			FileType: types.LoadDictTypeBM25,
 		}
 	}
 
@@ -85,7 +84,7 @@ func (bm25 *BM25) LoadDict(files ...string) error {
 func (bm25 *BM25) LoadDictStr(dictStr string) error {
 	dictFile := &types.LoadDictFile{
 		FilePath: dictStr,
-		FileType: consts.LoadDictTypeBM25,
+		FileType: types.LoadDictTypeBM25,
 	}
 	return bm25.Seg.LoadTFIDFDictStr(dictFile)
 }
@@ -184,15 +183,15 @@ func NewBM25(bm25Setting *types.BM25Setting) Relevance {
 	// init value
 	if bm25Setting == nil {
 		bm25Setting = &types.BM25Setting{
-			K1: consts.BM25DefaultK1,
-			B:  consts.BM25DefaultB,
+			K1: types.BM25DefaultK1,
+			B:  types.BM25DefaultB,
 		}
 	}
 	if bm25Setting.K1 == 0 {
-		bm25Setting.K1 = consts.BM25DefaultK1
+		bm25Setting.K1 = types.BM25DefaultK1
 	}
 	if bm25Setting.B == 0 {
-		bm25Setting.K1 = consts.BM25DefaultB
+		bm25Setting.K1 = types.BM25DefaultB
 	}
 
 	bm25 := &BM25{
diff --git a/hmm/relevance/tfidf.go b/hmm/relevance/tfidf.go
index 4e06169..2fd80b8 100644
--- a/hmm/relevance/tfidf.go
+++ b/hmm/relevance/tfidf.go
@@ -20,7 +20,6 @@ import (
 	"unicode/utf8"
 
 	"github.com/go-ego/gse"
-	"github.com/go-ego/gse/consts"
 	"github.com/go-ego/gse/hmm/segment"
 	"github.com/go-ego/gse/hmm/stopwords"
 	"github.com/go-ego/gse/types"
@@ -59,7 +58,7 @@ func (t *TFIDF) LoadDict(files ...string) error {
 	for i, v := range files {
 		dictFiles[i] = &types.LoadDictFile{
 			FilePath: v,
-			FileType: consts.LoadDictTypeTFIDF,
+			FileType: types.LoadDictTypeTFIDF,
 		}
 	}
 
@@ -70,7 +69,7 @@ func (t *TFIDF) LoadDict(files ...string) error {
 func (t *TFIDF) LoadDictStr(dictStr string) error {
 	dictFile := &types.LoadDictFile{
 		FilePath: dictStr,
-		FileType: consts.LoadDictTypeTFIDF,
+		FileType: types.LoadDictTypeTFIDF,
 	}
 	return t.Seg.LoadTFIDFDictStr(dictFile)
 }
diff --git a/types/dict_file.go b/types/dict_file.go
index fa02592..11e7da6 100644
--- a/types/dict_file.go
+++ b/types/dict_file.go
@@ -19,3 +19,30 @@ type BM25Setting struct {
 	// and we define B = 0.75 for defult value in `consts/dict_file.go`
 	B float64
 }
+
+const (
+	// dict file type to loading
+
+	// LoadDictTypeIDF dict of IDF to loading
+	LoadDictTypeIDF = iota + 1
+
+	// LoadDictTypeTFIDF dict of TFIDF to loading
+	LoadDictTypeTFIDF
+
+	// LoadDictTypeBM25 dict of BM25 to loading
+	LoadDictTypeBM25
+
+	// LoadDictTypeWithPos dict of with position to loading
+	LoadDictTypeWithPos
+
+	// LoadDictCorpus dict of corpus to loading
+	LoadDictCorpus
+)
+
+const (
+	// BM25DefaultK1 default k1 value for calculate bm25
+	BM25DefaultK1 = 1.25
+
+	// BM25DefaultK1 default B value for calculate bm25
+	BM25DefaultB = 0.75
+)