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Titan is a scalable graph database optimized for storing and querying graphs containing hundreds of billions of vertices and edges distributed across a multi-machine cluster. Titan is a transactional database that can support thousands of concurrent users executing complex graph traversals in real time. In addition, Titan provides the following features: Elastic and linear scalability for a growin
* UPDATE[29/11/2010] : Added support for 'Aggregate' function PHOEBUS ======= Contents -------- * Introduction * Computational Model * Distributed Processing * Getting it to work * Pluggable Storage and True Multi-Node Distribution with HDFS and Thrift * Next Steps * References Introduction ------------ Phoebus is a system written in Erlang for Distributed processing of very large graphs that span
Gruff は Ruby 用のグラフ描画ライブラリです(参考: Gruffでグラフ)。 今回は、Gruff を Rails から使う方法を説明します。 Sparklines というグラフライブラリは、Rails 用の generator も用意されて いますが、Gruff にはまだないようです。 なので、手作業で Rails に組み込むことになりますが、手順は簡単です。 準備 Gruffでグラフ等を参照して Gruff をインストールします。 サンプルデータの作成 ここでは、説明のため、以下のデータ(携帯電話/PHSの契約数)を用意するも のとします。 sqlite3用スキーマ create table cellphones ( id integer primary key, name varchar(255) not null, subscriber integer ); データの内容(
Graphite does three things: Kick ass. Chew bubblegum. Make it easy to store and graph metrics. (And it’s all out of bubblegum.) Learn more about Graphite About the Project Graphite is an enterprise-ready monitoring tool that runs equally well on cheap hardware or Cloud infrastructure. Teams use Graphite to track the performance of their websites, applications, business services, and networked serv
Python Google Chart About pygooglechart is a complete Python wrapper for the Google Chart API. Examples Click on the chart images below to see the source code used to create the chart. Documentation Documentation and examples are slowly progressing. ChangeLog Example Code Installation pygooglechart works with Linux, Windows and Mac OS X. Binary Installers Source Install There are a few ways of ins
Please join the Graphviz forum to ask questions and discuss Graphviz. What is Graphviz? Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design, machine learning, and in visual inter
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