Why did we open-source our inference engine? Read the post

opensearch-project/opensearch-neural-sparse-encoding-doc-v3-distill

The model should be selected considering search relevance, model inference and retrieval efficiency(FLOPS). We benchmark models' performance on a subset of BEIR benchmark: TrecCovid,NFCorpus,NQ,HotpotQA,FiQA,ArguAna,Touche,DBPedia,SCIDOCS,FEVER,Climate FEVER,SciFact,Quora.

Architecture
DistilBERT
Parameters
67M
Tasks
Encode
Outputs
Sparse
Dimensions
Sparse: 30,522
Max Sequence Length
512 tokens
License
apache-2.0
Languages
en

Benchmarks

CQADupstackPhysicsRetrieval

scientific retrieval en

Duplicate question retrieval from StackExchange Physics

Corpus: 38,314 Queries: 1,039
Performance L4 b1 c16
Corpus TPS 33.5K
Corpus p50 58.4ms
Query TPS 4.1K
Query p50 41.1ms
Reference →

CosQA

technology retrieval en

Code search with natural language queries

Corpus: 6,267 Queries: 500
Performance L4 b1 c16
Corpus TPS 15.6K
Corpus p50 51.5ms
Query TPS 1.9K
Query p50 47.9ms
Reference →

FiQA2018

finance retrieval en

Financial opinion mining and question answering

Corpus: 57,599 Queries: 648
Performance L4 b1 c16
Corpus TPS 40.5K
Corpus p50 59.2ms
Query TPS 4.6K
Query p50 39.5ms
Reference →

LegalBenchConsumerContractsQA

legal retrieval en

Question answering on consumer contracts

Corpus: 153 Queries: 396
Performance L4 b1 c16
Corpus TPS 97.4K
Corpus p50 76.3ms
Query TPS 6.3K
Query p50 40.7ms
Reference →

NFCorpus

medical retrieval en

Biomedical literature search from NutritionFacts.org

Corpus: 3,593 Queries: 323
Quality
ndcg at 10 0.3399
map at 10 0.1314
mrr at 10 0.5457
Performance L4 b1 c16
Corpus TPS 71.1K
Corpus p50 65.9ms
Query TPS 1.9K
Query p50 41.1ms
Reference →

SCIDOCS

scientific retrieval en

Citation prediction, document classification, and recommendation for scientific papers

Corpus: 25,656 Queries: 1,000
Performance L4 b1 c16
Corpus TPS 47.1K
Corpus p50 59.3ms
Query TPS 4.4K
Query p50 39.9ms
Reference →

SciFact

scientific retrieval en

Scientific claim verification using research literature

Corpus: 5,183 Queries: 300
Performance L4 b1 c16
Corpus TPS 59.3K
Corpus p50 67.2ms
Query TPS 6.1K
Query p50 42.4ms
Reference →

StackOverflowQA

technology retrieval en

Programming question answering from Stack Overflow

Corpus: 19,931 Queries: 1,994
Performance L4 b1 c16
Corpus TPS 53.1K
Corpus p50 62.1ms
Query TPS 97.0K
Query p50 46.1ms
Reference →

Self-hosted inference for search & document processing

Cut API costs by 50x, boost quality with 85+ SOTA models, and keep your data in your own cloud.