DOWNLOAD – Gruff

Gruff is the Knowledge Graph industry’s leading Graph Visualization software for exploring and discovering connections within data. Gruff provides novice users and graph experts the ability to visually build queries and explore connections as they developed over time.

Gruff produces dynamic data visualizations that organize connections between data in views that are driven by the user. This visual flexibility can instantly unveil new discoveries and knowledge that turn complex data into actionable business insights. Gruff was developed by Franz to address Graph Search in large data sets and empower users to intelligently explore graphs in multiple views including:

• Graphical View with “Time Machine” feature – See the shape and density of graph data evolve over time
• Tabular view – Understand objects as a whole
• Outline view – Explore the often hierarchical nature of graphs
• Query view – Write Prolog or SPARQL queries
• Graphical Query Builder – Create queries visually via drag and drop

Gruff’s  ‘Time Machine’ feature provides users an important capability to explore temporal connections in your data.  Users can see how relationships are created over time and are able to replay the evolving graph for new temporal based insights.

Key New Features and Updates in Gruff v7.4 – To see the full list – Release Notes.

• The new command “File | Connect to Gruff Demo Server” lets you try out Gruff on the “extended actors” database at a public AllegroGraph server that’s provided by Franz, when you don’t have an AllegroGraph server yourself. See the Example button in the query view and in the graphical query view for a few example queries. “Help | Animated Demo” also works there.
• The graphical query view has new grouper boxes for graph group graph pattens, either for a particular graph or for a graph variable.
• The graphical query view now has node filters for the SPARQL operators IN and NOT IN (for limiting a node variable to a particular set of values), for langMatches (for selecting only literals of a particular language), and for CONTAINS, STRSTARTS, and STRENDS (for finding literals that contain specified text). Also, the “bound” and “not bound” filters were broken, and the LIMIT and OFFSET values will now be included when saving a graphical query.
• Gruff can now connect to AllegroGraph servers through an HTTP proxy (as was possible with SPARQL endpoints already). See Global Options | Communications | HTTP Proxy.
• Additional triple file formats can now be loaded with the new commands “File | Load Triples | Load JSON-LD”, “Load TriG”, and “Load N-Quads Extended”. Corresponding new commands are also on the “File | Export Displayed Data As” child menu. Also, the new command “Global Options | Miscellaneous | Commit Frequency When Loading Triples” lets you control whether and how often commits will happen during loading.
• The query view’s “Create Visual Graph” button will now create link lines for additional SPARQL property path operators, namely InversePath ( ^ ) and AlternativePath ( | ). And it will draw the correct character for ZeroOrOnePath ( ? ). (See “Query Options | Show Links for Property Paths in Visual Graphs” for turning this off.)
• If the triple store defines label properties for predicates, then Gruff will now display those labels for the predicate objects as it has always done for nodes, as long as “Global Options | Node Label Predicates | Use Label Predicates for Node Labels” is on.
• When “Visual Graph Options | Node Labels | Show Full URIs on Nodes” is on, full URIs will be also displayed for the predicates in link labels. And full URIs will be shown in the legend as well.

Gruff Documentation

Here is an example for trying out the new time slider in Gruff’s graph view. It uses triples from crunchbase.com that contain a history of corporate acquisitions and funding events over several years. Gruff’s time bar allows you to examine those events chronologically, and also to display only the nodes that have events within a specified date range.

• Download the Crunchbase triples from the bottom of the Gruff
  download page at https://allegrograph.com/products/gruff/

• Create a new triple-store and used “File | Load Triples | Load
  N-Triples” to load that triples file into the new triple-store. Use
  “File | Commit” to ensure that the loaded triples get saved.

• Select “Visual Graph Options | Time Bar | Momentary Time Predicates”
  and paste the following five predicate IRIs into the dialog that
  appears. The time bar will then work with the date properties that
  are provided by these predicates, whenever you are browsing this
  particular triple-store.

http://www.franz.com/hasfunded_at
http://www.franz.com/hasfirst_funding_at
http://www.franz.com/hasfounded_at
http://www.franz.com/haslast_funding_at
http://www.franz.com/hasacquired_at

• Select “View | Optional Graph View Panes | Show Time Bar” to reveal
  the time bar at the bottom of the graph view. The keyboard shortcut
  for this command is Shift+A to allow quickly toggling the time bar
  on and off.

• Select “Display | Display Some Sample Triples” to do just that. The
  time bar will now display a vertical line for each of the requested
  date properties of the displayed nodes. Moving the mouse cursor
  over these “date property markers” will display more information
  about those events.

• Click down on the yellow-orange rectangle at the right end of the
  time bar and drag it to the left. This will make the “time filter
  range” smaller, and nodes that have date properties that are no
  longer in this range will temporarily disappear from the display.
  They will reappear if you drag the slider back to the right or
  toggle the time bar back off.

For more information, the full time bar introduction is in the Gruff documentation under the command “View | Optional Graph View Panes | Show Time Bar”.

Check out the “Chart Widget” for showing date properties of the visible nodes.