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Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,225 posts.
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OpenSearch 3.0 Released
The OpenSearch Software Foundation today announced the general availability of OpenSearch 3.0. This major release delivers a 9.5x performance improvement over OpenSearch 1.3, building on benchmarking data that showed earlier iterations of OpenSearch operating 1.6x faster than its closest industry competitor.
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Just Say No to Paxos Overhead: Replacing Consensus with Network Ordering (2016)
Jialin Li, Ellis Michael, Naveen Kr. Sharma, Adriana Szekeres, and Dan R. K. Ports, University of Washington
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Elastic 7.9
Elastic 7.9 (Elastic Stack: Elasticsearch, Kibana, Logstash, Beats) delivers new capabilities to market. Get started with a new free tier of Workplace Search, part of Elastic Enterprise Security, and ...
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Abusing vector search for texts, maps, and chess
Vector search isn't just for AI embeddings. Use HNSW for geo-spatial queries, stock covariance, chess positions, text tokens, and multi-modal recommendations with custom metrics.
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Proof of the Singular Value Decomposition
The existence claim for the singular value decomposition (SVD) is quite strong: “Every matrix is diagonal, provided one uses the proper bases for the domain and range spaces” (Trefethen & Bau III, 1997) . MIT professor Gilbert Strang has a wonderful lecture on the SVD, and he includes an existence proof for the SVD…
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KumoRFM: A Foundation Model for In-Context Learning on Relational Data
Introduction to Kumo Relational — the relational foundation model for predictive AI on relational data
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Full-text search engine with PostgreSQL (part 2): Postgres vs. Elasticsearch
Using PostgreSQL as a full-text search engine is tempting because it requires less infrastructure. But is its set of search-related features enough to compete with the Lucene based alternatives?
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Speedy transactions in multicore in-memory databases
This paper is from SOSP'13. The Polyjuice paper, which we studied last week, built on the Silo codebase and commit protocol, which led me ...
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Natural Language Corpus Data: Beautiful Data
Data files are derived from the Google Web Trillion Word Corpus , as described by Thorsten Brants and Alex Franz, and distributed by the Linguistic Data Consortium.
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Which topics get the upvote on Hacker News?
Hacker News is a popular social news website, mostly covering technology and startup topics. It relies on user submissions and moderation, where each submitted story can be upvoted and commented by users, which in term determines whether the story reaches the front page and how long it stays there.
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Hardwood: A New Parser for Apache Parquet
Today, it’s my great pleasure to announce the first public release of Hardwood, a new parser for the Apache Parquet file format, optimized for minimal dependencies and great performance. Hardwood is …
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The difference between isolation levels and consistency levels
(Editor's note: This post is cross-posted on Fauna's blog, where Daniel Abadi serves as an adviser . Fauna is is a serverless, cloud data...
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TensorFlow Feature Columns
Welcome to Part 2 of a blog series that introduces TensorFlow Datasets and Estimators. We're devoting this article to —a data structure describing the features that an Estimator requires for training and inference. As you'll see, feature columns are very rich, enabling you to represent a diverse range of data.
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Using parallel sequential scan in PostgreSQL
Parallel sequential scan is the first parallel access method in PostgreSQL and is introduced in version 9.6. The committer of this featu...
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Trends in the San Francisco (mostly dog?) poop crisis
Oscar Wilde once said, “it’s an odd thing but anyone who disappears is said to be in San Francisco.” Indeed, with the weather, view, and diversity, San Francisco is one of the most beautiful cities in the U.S. But then, every city has a dark side, and San Francisco is no exception. San Francisco, as […]
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What can 6,000 electric vehicles tell us about EV battery health?
Analysis of electric vehicle battery health of 22K+ EVs reveals a 2.3% average battery degradation rate. High-power DC fast charging is the top risk factor.
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A love letter to the CSV format (2024)
why people pretending CSV is dead are wrong
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Analysing C# code on GitHub with BigQuery
Just over a year ago Google made all the open source code on GitHub available for querying within BigQuery and as if that wasn’t enough you can run a terabyte of queries each month for free!
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What 10gen nailed with MongoDB
When my co-founders and I first started on our startup a little over a year ago, we asked other startups about what to database they were using. Nine out of ten people all had the same response: “Just go with Mongo.”
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DeWitt Clause, or can you benchmark %database% and get away with it
The DeWitt clause lets database vendors forbid publishing benchmarks. What the clause is, which vendors still use it, and what you can legally publish.
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Do data-driven companies win?
Some gut-based judgements on the effectiveness of data.
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Why AutoGPT engineers ditched vector databases
AutoGPT decided to drop the support for vector databases: Pinecone, Milvus, Redis, Weaviate - all gone. What has happened to the original idea of efficiently storing agent's memories?
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