I've been designing an application, based on .NET/Mono framework, which should make an heavy use of the shortest-path in a graph theories and I would like to use a native solution to traverse the nodes of the graph, instead of implementing surrogate solutions which would be hardly maintainable and would massively affect performances. I'...
I have used Relational DB's a lot and decided to venture out on other types available. This particular product looks good and promising: http://neo4j.org/ Has anyone used graph-based databases? What are the pros and cons from a usability prespective? Have you used these in a production environment? What was the requirement that prompt...
There is some hype around graph databases. I'm wondering why. What are the possible problems that one can be confronted with in today's web environment that can be solved using graph databases? And are graph databases suitable for classical applications, i.e. can one be used as a drop-in replacement for a Relational Database? So in fac...
I need to develop a graph database in python (I would enjoy if anybody can join me in the development. I already have a bit of code, but I would gladly discuss about it). I did my research on the internet. in Java, neo4j is a candidate, but I was not able to find anything about actual disk storage. In python, there are many graph data m...
I am in the preparation phase of the design a graph-based (or key-value) database library for C++ which many here will find similar to projects such as http://neo4j.org/. Since this is a very early phase of design, my requirements are simple, unrefined and (I admit) probably still rather naive: A directed acyclic graph A tree-like st...
Suppose that I have a very large undirected, unweighted graph (starting at hundreds of millions of vertices, ~10 edges per vertex), non-distributed and processed by single thread only and that I want to do breadth-first searches on it. I expect them to be I/O-bound, thus I need a good-for-BFS disk page layout, disk space is not an issue....
What is the difference between graph-based databases (http://neo4j.org/) and object-oriented databases (http://www.db4o.com/)? ...
I will make an application with a lot of similar items (millions), and I would like to store them in a MySQL database, because I would like to do a lot of statistics and search on specific values for specific columns. But at the same time, I will store relations between all the items, that are related in many connected binary-tree-like ...
I want to use a graph database using php. Can you point out some resources on where to get started? Is there any example code / tutorial out there? Or are there any other methods of storing data that relate to each other in totally random/abstract situations? - Very abstract example of the relations needed: John relates to Mary, both ...
Which is the graph database that supports limitless scale out, handles large volumes of data, and can perform low-latency queries? Preferably one that integrates well with Hadoop. I have been reading about couple of products called Neo4J, AllegroGraph, and BigData. Please share your experiences with any of these. ...
As Qt is used for small, medium and large sized application/service development, it is very likely that NoSQL trend will not skip Qt developers. Although most NoSQL projects have background of web app development and dynamic languages, some of the current NoSQL libraries have been written in C or C++, so integration would be possible. E...
Since there are no answers to my previous question. I'm really thinking to implement a custom DB which will satisfy my requirements. Yes I know, sounds crazy. But what books, articles and etc. would you recommend to read? If it does matter the requirements for my DB are following Graph oriented - optimized for storing graphs and ...