Non-Metric Space Library (NMSLIB): An efficient similarity search library and a toolkit for evaluation of k-NN methods for generic non-metric spaces.
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Oct 22, 2025 - C++
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knn-search
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Collections of vector search related libraries, service and research papers
search-engine machine-learning awesome vector nearest-neighbor-search awesome-list knn-search similarity-search vector-search vector-search-engine
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Aug 6, 2024
Nearest Neighbor Search with Neighborhood Graph and Tree for High-dimensional Data
nearest-neighbor-search knn-search nearest-neighbors approximate-nearest-neighbor-search k-nearest-neighbors
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Oct 15, 2025 - C++
Large scale K-means and K-nn implementation on NVIDIA GPU / CUDA
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Oct 11, 2022 - Jupyter Notebook
Embeddable, in-memory, document-oriented database with a high-level Query builder interface.
go database cpp in-memory knn-search cpp-library fulltext-search vector-similarity embedable vector-search hybrid-search ann-search document-oriented-database
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Oct 24, 2025 - C++
Multi-Modal Database replacing MongoDB, Neo4J, and Elastic with 1 faster ACID solution, with NetworkX and Pandas interfaces, and bindings for C 99, C++ 17, Python 3, Java, GoLang ποΈ
python search json database big-data nosql arrow bigdata pandas networkx graph-database document-database knn-search dataloader acid spdk key-value-store apache-arrow vector-search iouring
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Sep 1, 2023 - C++
High performance nearest neighbor data structures (KDTree and BallTree) and algorithms for Julia.
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Jul 16, 2025 - Julia
An easy to use Neural Search Engine. Index latent vectors along with JSON metadata and do efficient k-NN search.
search-engine information-retrieval retrieval nearest-neighbor-search knn-search image-search approximate-nearest-neighbor-search embedding information-retrieval-engine similarity-search video-search faiss aquila feature-vectors neural-information-retrieval vector-database neural-search similarity-searches
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May 6, 2024 - HTML
Java library for approximate nearest neighbors search using Hierarchical Navigable Small World graphs
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Mar 23, 2025 - Java
Fast and lightweight header-only C++ library (with Python bindings) for approximate nearest neighbor search
nearest-neighbor-search knn-search approximate-nearest-neighbor-search mrpt k-nn similarity-search random-projection
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Jul 28, 2025 - C++
Code for ECCV2018 paper: Revisiting the Inverted Indices for Billion-Scale Approximate Nearest Neighbors
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May 7, 2020 - C++
Performance-portable geometric search library
c-plus-plus cpp hpc clustering gpu parallel mpi cuda distributed high-performance-computing knn-search nearest-neighbors kokkos dbscan hdbscan bounding-volume-hierarchy
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Oct 19, 2025 - C++
Absolute balanced kdtree for fast kNN search.
algorithm kd-tree knn-search tree-structure kmeans k-means kd-trees knn k-nearest-neighbours kdtrees
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Sep 13, 2023 - C
utils to use word embedding models like word2vec vectors in a PostgreSQL database
word2vec postgresql word-embeddings knn-search inverted-index product-quantization similarity-search
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Oct 6, 2021 - C
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Aug 23, 2022 - C#
A collection of space partitioning trees for Rust π¦ with Python bindings π
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Oct 22, 2025 - Rust
Evaluate custom and HuggingFace text-to-image/zero-shot-image-classification models like CLIP, SigLIP, DFN5B, and EVA-CLIP. Metrics include Zero-shot accuracy, Linear Probe, Image retrieval, and KNN accuracy.
knn-search evaluation-metrics evaluation-framework linear-probing embedding-evaluation zero-shot-retrieval zero-shot-classification model-evaluation-metrics embeddings-extraction zero-shot-image-classification text-to-image-evaluation
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Jan 15, 2025 - Jupyter Notebook
A header-only C++ library for k nearest neighbor search with Eigen3.
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Oct 2, 2021 - C++
C library for finding nearest (most similar) element in a set
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Oct 8, 2025 - Rust
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