What is HyperGraphDB?
HyperGraphDB is an extensible open-source graph-based data storage engine. It implements the ability to store hypergraph relationships, which make it suitable for complex data and knowledge representation problems.
What is the difference between graph and hypergraph?
In mathematics, a hypergraph is a generalization of a graph in which an edge can join any number of vertices. In contrast, in an ordinary graph, an edge connects exactly two vertices. The size of the vertex set is called the order of the hypergraph, and the size of edges set is the size of the hypergraph.
What is Titan DB?
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.
What are the weaknesses of Neo4j?
Neo4j Drawbacks or Limitations
- AS of Neo4j 2.1. 3 latest version, it has a limitation of supporting number of Nodes, Relationships and Properties.
- It does not support Sharding.
What are Hypergraphs used for?
Hypergraphs have shown their power as a tool to understand problems in a wide variety of scientific field. Moreover it well known now that hypergraph theory is a very useful tool to resolve optimization problems such as scheduling problems, location problems and so on.
What is hypergraph in data structure?
(data structure) Definition: A graph whose hyperedges connect two or more vertices. Formal Definition: A hypergraph G can be defined as a pair (V, E), where V is a set of vertices, and E is a set of hyperedges between the vertices.
What is Cassandra DataStax?
DataStax, Inc. is a data management company based in Santa Clara, California. Its product provides commercial support, software, and cloud database-as-a-service based on Apache Cassandra. DataStax also provides event streaming support and a cloud service based on Apache Pulsar.
Is Neo4j fast?
Execution Time is in seconds, for 1,000 users. For the simple friends of friends query, Neo4j is 60% faster than MySQL. For friends of friends of friends, Neo is 180 times faster. And for the depth four query, Neo4j is 1,135 times faster.
Is Neo4j horizontally scalable?
Neo4j 4.0 provides unlimited horizontal scaling. Organizations with the most extreme scaling needs now benefit from Neo4j’s minutes-to-milliseconds performance advantage over relational and NoSQL databases, untethered by data volume restrictions.
Are Hypergraphs useful?
Can multigraph have loops?
In a multigraph,no loops are allowed.
What kind of database is hypergraphdb used for?
HyperGraphDB is a general purpose, extensible, portable, distributed, embeddable, open-source data storage mechanism. It is a graph database designed specifically for artificial intelligence and semantic web projects, it can also be used as an embedded object-oriented database for projects of all sizes.
Is there a limit to the size of hypergraphdb?
There is no software limit on the size of the graph managed by a HyperGraphDB instance. Each individual value’s size is limited by the underlying storage, i.e. by BerkeleyDB’s 2GB limit. However, the architecture allows bypassing BerkeleyDB for particular types of atoms if one so desires.
How can hypergraphdb be used in bioinformatics project?
With HyperGraphDB, all beans that have to do with configuration can simply be added as atoms and they will be managed from there on. Bioinformatics projects form a category of fairly complex software that not only can benefit form a data management piece like HyperGraphDB, but also constitute a very natural fit for it.
Is there support for grailog in hypergraphdb?
Borislav Iordanov is currently exploring Grailog ( Graph inscribed logic) support in HyperGraphDB.