2010年9月7日に実施いたしました、ソフトバンクモバイル株式会社、ソフトバンクテレコム株式会社、ソフトバンクBB株式会社むけHadoop研修の資料を公開いたします。
The document demonstrates various geospatial queries in MongoDB including indexing locations, saving a document with a location, and queries to find documents within a distance, box, or circle of a point. It shows how to find the nearest document to a point, limit the maximum distance, and use spherical geometry for more accurate distance calculations over large areas.
Web Analytics Wednesday Toronto October 26th 2011 - AT Internet
Artificial Intelligence, Data and Competition – SCHREPEL – June 2024 OECD dis...
Run JavaScript EverywhereNode.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.
As a research intern here at Last.fm, dealing with huge datasets has become my daily bread. Having a herd of yellow elephants at my disposal makes this a lot easier, but the conventional way of writing Hadoop programs can be rather cumbersome. It generally involves lots of typing, compiling, building, and moving files around, which is especially annoying for the “write once, run never again” progr
I received some constructive criticism regarding my previous blog in NoSQL patterns that I covered only the key/value store but have left out Graph DB. The Property Graph Model A property graph is a collection of Nodes and Directed Arcs. Each node represents an entity and has an unique id as well as a Node Type. The Node Type defines a set of metadata that the node has. Each arc represents a unidi
Rは統計解析のブッシュナイフだ 実践! Rで学ぶ統計解析の基礎(1) オープンソースの統計処理言語・環境の「R」を使って実践的な統計解析のテクニックとリテラシーを習得しよう!
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