1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
package lesci
import (
"context"
"database/sql"
"database/sql/driver"
"fmt"
"go.jknobloc.com/x/llm"
"go.jknobloc.com/x/tensor"
"go.jknobloc.com/x/tokenizer/bpe"
)
func (e *Experiment) ExtractData(db *sql.DB) error {
if ok, err := EnsureTable(db, "oov_rules", `CREATE TABLE oov_rules (a INTEGER, b INTEGER, c INTEGER)`); err != nil {
return err
} else if !ok {
fmt.Println("oov_rules table not empty")
if _, err := db.ExecContext(context.Background(), `DELETE FROM oov_rules`); err != nil {
return err
}
}
merges := bpe.Merges(e.counterfactual.(*bpe.Tokenizer))
rules, valid := Rules(e.counterfactual, merges)
mask := ExtractData(rules, valid, int64(e.cutoff), int64(e.window))
return AppendRows(db, "oov_rules", func(append AppendFunc) error {
for i, m := range mask {
if !m {
continue
}
if err := append([]driver.Value{
rules.At([]int{i, 0}),
rules.At([]int{i, 1}),
rules.At([]int{i, 2}),
}); err != nil {
return err
}
}
return nil
})
}
func Rules(tokenizer llm.Tokenizer, merges [][2]string) (tensor.Dense[int64], []bool) {
valid := bpe.ReachableMerges(tokenizer.(*bpe.Tokenizer), merges)
rules := tensor.NewDense[int64]([]int{len(merges), 3}, nil)
for i, merge := range merges {
if !valid[i] {
continue
}
a := tokenizer.Tokenize(merge[0])
b := tokenizer.Tokenize(merge[1])
c := tokenizer.Tokenize(merge[0] + merge[1])
if len(a) != 1 || len(b) != 1 || len(c) != 1 {
panic("unexpected token IDs")
}
rules.Set([]int{i, 0}, int64(a[0]))
rules.Set([]int{i, 1}, int64(b[0]))
rules.Set([]int{i, 2}, int64(c[0]))
}
return rules, valid
}
|
