mirror of
https://gitee.com/milvus-io/milvus.git
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121 lines
3.4 KiB
Go
121 lines
3.4 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package index
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import (
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"strconv"
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"github.com/milvus-io/milvus/client/v2/entity"
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)
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var (
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minhashElementBitWidthKey = `mh_element_bit_width`
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minhashLSHBandKey = `mh_lsh_band`
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minhashLSHCodeInMemKey = `mh_lsh_code_in_mem`
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minhashWithRawdataKey = `with_raw_data`
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minhashLSHBloomFPProbKey = `mh_lsh_bloom_false_positive_prob`
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minhashSearchWithJaccardKey = `mh_search_with_jaccard`
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minhashRefineK = `refine_k`
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minhashLSHBatchSearchKey = `mh_lsh_batch_search`
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)
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type minhashLSHIndex struct {
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baseIndex
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lshBand int
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}
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func (idx *minhashLSHIndex) WithElementBitWidth(elementBitWidth int) *minhashLSHIndex {
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idx.params[minhashElementBitWidthKey] = strconv.Itoa(elementBitWidth)
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return idx
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}
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func (idx *minhashLSHIndex) WithLSHCodeInMem(lshCodeInMem int) *minhashLSHIndex {
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idx.params[minhashLSHCodeInMemKey] = strconv.Itoa(lshCodeInMem)
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return idx
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}
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func (idx *minhashLSHIndex) WithRawData(withRawData bool) *minhashLSHIndex {
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idx.params[minhashWithRawdataKey] = strconv.FormatBool(withRawData)
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return idx
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}
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func (idx *minhashLSHIndex) WithBloomFilterFalsePositiveProb(fpProb float64) *minhashLSHIndex {
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idx.params[minhashLSHBloomFPProbKey] = strconv.FormatFloat(fpProb, 'f', -1, 64)
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return idx
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}
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func (idx *minhashLSHIndex) Params() map[string]string {
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result := map[string]string{
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MetricTypeKey: string(idx.metricType),
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IndexTypeKey: string(MinHashLSH),
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minhashLSHBandKey: strconv.Itoa(idx.lshBand),
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}
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for key, value := range idx.params {
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result[key] = value
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}
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return result
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}
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func NewMinHashLSHIndex(metricType entity.MetricType, lshBand int) *minhashLSHIndex {
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idx := &minhashLSHIndex{
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baseIndex: baseIndex{
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metricType: metricType,
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indexType: MinHashLSH,
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params: make(map[string]string),
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},
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lshBand: lshBand,
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}
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return idx
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}
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type minHashLSHAnnParam struct {
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baseAnnParam
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}
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func (ap *minHashLSHAnnParam) WithSearchWithJACCARD(searchWithJACCARD bool) *minHashLSHAnnParam {
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ap.params[minhashSearchWithJaccardKey] = strconv.FormatBool(searchWithJACCARD)
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return ap
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}
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func (ap *minHashLSHAnnParam) WithRefineK(refineK int) *minHashLSHAnnParam {
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ap.params[minhashRefineK] = strconv.Itoa(refineK)
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return ap
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}
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func (ap *minHashLSHAnnParam) WithBatchSearch(batchSearch bool) *minHashLSHAnnParam {
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ap.params[minhashLSHBatchSearchKey] = strconv.FormatBool(batchSearch)
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return ap
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}
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func (ap *minHashLSHAnnParam) Params() map[string]any {
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result := ap.baseAnnParam.Params()
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return result
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}
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func NewMinHashLSHAnnParam() *minHashLSHAnnParam {
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return &minHashLSHAnnParam{
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baseAnnParam: baseAnnParam{
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params: make(map[string]any),
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},
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}
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}
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