JnetPlus format

This format provides extended network description. It has tree sections: "HEADER", "NODES", and "EDGES".
Maximum allowed number of lines in the "Header section" is 4. Each line should start with "#" character.
Nodes section starts with "NODES" line. Next lines contain information about nodes and its attributes: the first four elements specify node name and layout coordinats. This is essential part of the node's description. The next two attributes are optional and describe color and shape. "Color" attribute can be presented by RGB value, for example, #ffdd00, or by color name ("red", "green", etc. see "Color schema" section in Supplement). There is also the third way to represent color through the internal format. In this case color value is genereated by program. "Shape" attribute starts with "@" character following by the number that specify shape type (see list of shape's types in Supplement).
Edges section starts with "EDGES" line. Essential part of this section consists two elements for each line: source node name and target node name delimited by Tab. Target node name should be single. No list of target nodes is allowed. Next set of elements is optional and describes color (in the same way as in "Node section"), shape (solid by default or "@1" for dotted), and types of tails for each edge (combination of two numbers delimited by "_" character, see Supplement).

Example of JnetPlus format (demo):

SIF format (simple interaction format)

SIF is a text file format and provides information about network in form of list of triples:

"sourceNode    edgeType    targetNode"
"sourceNode    edgeType    < targetNode1  targetNode2  ...>"
...
Node names should be unique. Duplicate pairs of nodes must have different relation type, otherwise they are ignored (except one). Self-connections are also acceptable. For example, "nodeA    type    nodeA". This format does not include any additional information about nodes and relations between them (edges), for example, about shape, size, color, layout coordinations, extended description, etc. Color of nodes is gray and it's shape is sphere by default. Color of edges is defined randomly from the list of colors for each type of relations.

Example of SIF format (demo):