la_vector
RadixSpline
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| la_vector | RadixSpline | |
|---|---|---|
| 1 | 3 | |
| 35 | 121 | |
| - | 3.3% | |
| 0.0 | 0.0 | |
| over 1 year ago | about 1 year ago | |
| C++ | C++ | |
| Apache License 2.0 | MIT License |
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la_vector
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PGM Indexes: Learned indexes that match B-tree performance with 83x less space
Hi Jouni!
You may find interesting these other papers of ours:
- The ALENEX21 paper "A 'learned' approach to quicken and compress rank/select dictionaries" (http://pages.di.unipi.it/vinciguerra/publication/learned-ran..., https://github.com/gvinciguerra/la_vector), where we introduce a compressed bitvector supporting efficient rank and select queries, which is competitive with several well-established implementations of succinct data structures.
- The ICML20 paper "Why are learned indexes so effective?" (http://pages.di.unipi.it/vinciguerra/publication/learned-ind...) where we prove that, under some general assumptions on the input data, the space of the PGM-index is actually O(n/B^2) whp (versus Θ(n/B) of classic B-trees).
RadixSpline
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Self-indexing RDBMS? Could AI help?
RadixSpline
- RadixSpline: A Single-Pass Learned Index
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PGM Indexes: Learned indexes that match B-tree performance with 83x less space
We index geospatial data using a learned index in this work (cf. Section 3): http://cidrdb.org/cidr2021/papers/cidr2021_paper19.pdf
Code: https://github.com/learnedsystems/RadixSpline
What are some alternatives?
PGM-index - 🏅State-of-the-art learned data structure that enables fast lookup, predecessor, range searches and updates in arrays of billions of items using orders of magnitude less space than traditional indexes
rmi - A learned index structure
ALEX - A library for building an in-memory, Adaptive Learned indEX
SOSD - A Benchmark for Learned Indexes
LearnedSecondaryIndex - A read-optimized learned index for unsorted data