Tagged articles

sparse matrix

3 articles · Page 1 of 1

May 30, 2024 · Big Data

Designing a Sparse‑Matrix Based Format for Radar dBZ Data (smdbz)

The article presents a sparse‑matrix compression scheme called smdbz for high‑resolution radar dBZ data, detailing the dBZ grade encoding, CSR representation, custom Python implementation, bit‑packing techniques, file layout, performance comparisons with PNG and NPY formats, and the method's advantages and limitations.

CSRPythondBZ

0 likes · 21 min read

Designing a Sparse‑Matrix Based Format for Radar dBZ Data (smdbz)

Model Perspective

Aug 20, 2022 · Fundamentals

Unlock SciPy’s Sparse Graph Algorithms: Shortest Paths, MSTs & More

This article lists the key SciPy sparse‑graph functions—such as connected components, Laplacian, various shortest‑path algorithms, traversals, minimum spanning tree, flow and matching utilities—and provides Python code examples demonstrating their use.

Graph AlgorithmsPythonminimum spanning tree

0 likes · 4 min read

Unlock SciPy’s Sparse Graph Algorithms: Shortest Paths, MSTs & More

DataFunTalk

Sep 20, 2020 · Artificial Intelligence

Building a Production‑Ready Recommendation System with Python, LLR, and ElasticSearch

This tutorial explains how to construct a recommendation system by loading transaction data, creating sparse user‑item and item‑item matrices, applying Log‑Likelihood Ratio for item similarity, and indexing the results into ElasticSearch for real‑time serving, using Python and open‑source big‑data tools.

Data ProcessingLLRPython

0 likes · 16 min read

Building a Production‑Ready Recommendation System with Python, LLR, and ElasticSearch