mirror of https://github.com/milvus-io/milvus.git
63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package milvusclient
|
|
|
|
import (
|
|
"encoding/json"
|
|
|
|
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
|
|
)
|
|
|
|
const (
|
|
rerankType = "strategy"
|
|
rerankParams = "params"
|
|
rffParam = "k"
|
|
weightedParam = "weights"
|
|
|
|
rrfRerankType = `rrf`
|
|
weightedRerankType = `weighted`
|
|
)
|
|
|
|
type Reranker interface {
|
|
GetParams() []*commonpb.KeyValuePair
|
|
}
|
|
|
|
type rrfReranker struct {
|
|
K float64 `json:"k,omitempty"`
|
|
}
|
|
|
|
func (r *rrfReranker) WithK(k float64) *rrfReranker {
|
|
r.K = k
|
|
return r
|
|
}
|
|
|
|
func (r *rrfReranker) GetParams() []*commonpb.KeyValuePair {
|
|
bs, _ := json.Marshal(r)
|
|
|
|
return []*commonpb.KeyValuePair{
|
|
{Key: rerankType, Value: rrfRerankType},
|
|
{Key: rerankParams, Value: string(bs)},
|
|
}
|
|
}
|
|
|
|
func NewRRFReranker() *rrfReranker {
|
|
return &rrfReranker{K: 60}
|
|
}
|
|
|
|
type weightedReranker struct {
|
|
Weights []float64 `json:"weights,omitempty"`
|
|
}
|
|
|
|
func (r *weightedReranker) GetParams() []*commonpb.KeyValuePair {
|
|
bs, _ := json.Marshal(r)
|
|
|
|
return []*commonpb.KeyValuePair{
|
|
{Key: rerankType, Value: weightedRerankType},
|
|
{Key: rerankParams, Value: string(bs)},
|
|
}
|
|
}
|
|
|
|
func NewWeightedReranker(weights []float64) *weightedReranker {
|
|
return &weightedReranker{
|
|
Weights: weights,
|
|
}
|
|
}
|