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2013 april gruff webinar san diego copy
- 1. GRUFF Becoming a power user San Diego Version Jans Aasman, Ken Cheetham Franz Inc
- 2. Highlights • Navigate large graphs in a user friendly way • Automatically derive SPARQL and Prolog queries from interesting patterns on the screen. • Discover links between nodes automatically • Use a real AI language to explore the graph (Prolog) • And some other goodies – Programmatically control Gruff over http – Show pictures for nodes.
- 3. 11 short lessons 1. Download the right Gruff (standalone vs server version) 2. Manage triple stores – Import triples, display triples, freetext index triples. 3. Graph view: see triples as nodes and links 4. Table view: see triples as objects in tables 5. Outline view: see triples as hierarchies 6. Query view: writing SPARQL and Prolog for real men 7. Visual Query builder: build queries using point and click 8. Visual Discovery: build queries using patterns on the screen 9. Control Gruff through REST 10. Use pictures on nodes 11. Server edition of AllegroGraph and Gruff.
- 4. [1] Download the right Gruff Franz provides two version of Gruff • Version 5 for AG 33 – Standalone, AllegroGraph built in. – Works on all platforms: Windows, Linux, Mac, 32 bit and 64 bit. – Perfect for exploring small and medium sized datasets • Version 5 for AG 4.10 – For very large datasets and production systems – If you need an enterprise database with transactions and ACID behaviour, backup, restore, point in time recovery, warm failover, triple level security, server side javascript etc etc. – Windows/Mac/Linux client for AllegroGraph server edition – And if you need SPARQL 1.1 and SPIN
- 6. [2] Manage your triple store • Create a new triple store (file menu) – Make sure you fill in your machine name for local triple stores • Load triples from a file or the web (file menu) • Display all triples up to a limit (display -> display all triples up to a limit) • Remove all triples from screen (‘z’ till blank, or ctr-alt-x) • Create free text index (display -> edit freetext predicates) • Search for something using freetext (;)
- 7. Oct 2007
- 11. Clinical Trials Brand Medicin Drugs Side Effects Diseases SNOMED MESH Patient Records Systematic Nomenclature of Medicine – Clinical Terms National Library of Medicine's controlled vocabulary thesaurus Records of Patients tripping and falling
- 12. [3] Graph View ‘G’ • The view you’ll spend 80 % of your time in (well, I do) • Some easy starters to get something on the screen – Using freetext indexing (;) – Display all triples up to a limit (display menu) – Do simple SPARQL query in query screen (w) .. Select * where { ?x a ?y . } limit 10 .. Click on ‘create-visual-graph’ – Display triples by type (display menu) • Select the predicates to show on the screen (p) • Explode nodes (f) • Going back to previous state (z) • Reorder graph ( r ) • Nudge the graph (d) • Zoom in and out (middle wheel mouse, or use , and .)
- 13. [3] Graph View ‘G’ continued • Explode node by right-clicking and choosing from a menu or a tree • Delete nodes from the screen (x) • Delete all nodes from the screen (ctr-alt-x) • Eraser mode (ctr-shift-x) • Remove orphans (shift-o) • Show full namespaces (shift-8 .. Not F8) • Show predicate names on screen (n) • Find shortest path (shift-f) – Pin nodes, or graph might change too much (i) – What if you can’t find a path? Choose more predicates and sometimes less – Create larger time window to search – Buy more memory and solid state drives for your laptop – Check in table view if one of the nodes has the right predicates
- 14. [3] Graph View ‘G’ continued • Sometimes you don’t want to see the node labels (ctr-8 or – Visual-graph-options -> node labels -> use label preds for nodes) • You can add your own node labels.. Very useful • You can always see the full URL of a node left under the screen • Double click on node to go to table view (or hit ‘t’) • Go directly to outline view from selected node (o) • Save a graph layout to disk (ctr-s) • Load a graph layout (ctr-l) • Graph layouts are simple text files and can be shared
- 15. [4] Table View ‘T’ IF YOU WANT TO SEE YOUR TRIPLES IN A TRADITIONAL TEXTUAL TABLE • Navigate the data by clicking on ‘values’ • Above gray line: s p o (where s is the main node we selected) • Under gray line: o p s (note the ‘is’ predicate ‘of) to denote the other direction • Note how ‘8’ shows you full URLs of nodes • Note how ‘Alt-8’ shows you how we use node-labels • You can create triples in the table view, see manual…
- 16. [5] Outline View ‘O’ IF YOU HAVE DEEP HIERARCHICAL DATA AND YOU NEED TO RETAIN THE CONTEXT WHILE NAVIGATING. • Navigate the data by clicking on little arrows – Blue: outgoing triples – Black: triples pointing to previous level (not the ‘is’ … ‘of’ around the predicates • Display: – Note how ‘8’ shows you full URLs of nodes – Note how ‘Alt-8’ shows you how we use node-labels • You can create triples in the table view, see manual…
- 17. [6] Query View – ‘W’ • Write queries in SPARQL and Prolog – by writing code • Use namespace abbreviations (b) to avoid typing prefixes • Turn output into Graph or CSV • Managing queries – Save queries (ctr-s) – Load queries (ctr-l) • Investigate menu … query options – One can change the time limit..
- 18. [7] Visual Query Editor ‘E’ • Build queries visually – no code! • Most things work like the graphical query view – Search for freetext (;) • Right click on screen to create new variables • Right click on variables to create new predicates with drag and drop – Multiple ways to choose names of predicates.. See menus
- 19. [8] Discovery: using patterns on the screen to build queries • Create interesting patterns on the screen using everything you learned so far • Find a trail that you think is interesting • Highlight each node in trail (ctr-left-click or ‘h’) • Move highlighted nodes to query editor (ctr-alt-h) • Change some variables
- 20. [9 ]Controlling Gruff programmatically through HTTP • Start Gruff as a server: – Global options -> communications -> start http:server • Documentation: – F1 in Gruff, search for http • Two very simple examples: – http://localhost:8000/update-layout?redo=yes – http://localhost:8000/store-info?attribute=store-name • And a slightly more complicated one: finding links between two nodes • http://localhost:8000/find- paths?node1=http%3A%2F%2Fwww.cyc.com%2F2002%2F04%2F08%2Fcy c%23economicStability&node2=http%3A%2F%2Fwww.cyc.com%2F2002% 2F04%2F08%2Fcyc%23CoalitionPartnerFieldOPSSecretLAN- DASSA&predicates=current&keep-old-nodes=yes
- 21. [10] Using Pictures for Nodes
- 22. [10] Using Pictures for Nodes • Tell Gruff what predicate to use for pixmaps – <jans> <pixmap> “pictureOfJans.ico” – Global-options -> node label predicates -> custom predicates for node label pixmaps. • And tell Gruff the base location of your pixmaps – You can use relative filenames – You can use jpg png bmp ico – Global-options->miscellaneous->document base folder
- 23. [11] Using Gruff with the Server • First: install Server, or VM or use Hosted version…
- 24. [11] Using Gruff with the Server • Second: download Gruff client for Server
- 25. In this example I start the VM • Click on agstart.sh
- 26. • Find the ip address of the server (if you don’t have fixed ip)
- 27. Road Map • Connecting with other triple stores • Circle Views, Hierarchical Views, etc • Statistical Analysis and Business Intelligence functionality • Bayesian belief networks • Extensive support for GeoSpatial, Temporal and Social Network Analysis in SPARQL • Tell us What You Want.