Type build-signed-interaction-graph and build-signed-interaction-graph/form.
This commit is contained in:
Sergiu Ivanov
parent
f2f0564f72
commit
25411043c1
2 changed files with 70 additions and 53 deletions
86
networks.rkt
86
networks.rkt
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@ -30,7 +30,8 @@
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list-syntactic-interactions build-syntactic-interaction-graph
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interaction? get-interaction-sign build-interaction-graph
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build-interaction-graph/form
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build-interaction-graph/form build-signed-interaction-graph
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build-signed-interaction-graph/form
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)
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(define-type (State a) (VariableMapping a))
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@ -468,6 +469,44 @@
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(define n2 (network-form n-multi 123-doms))
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(check-equal? (graphviz (build-interaction-graph/form n2))
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"digraph G {\n\tnode0 [label=\"y\"];\n\tnode1 [label=\"t\"];\n\tnode2 [label=\"z\"];\n\tnode3 [label=\"x\"];\n\tsubgraph U {\n\t\tedge [dir=none];\n\t\tnode0 -> node0 [];\n\t}\n\tsubgraph D {\n\t\tnode0 -> node1 [];\n\t\tnode0 -> node2 [];\n\t\tnode0 -> node3 [];\n\t}\n}\n")])))
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(: build-signed-interaction-graph (All (a) (-> (Network a) Graph)))
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(define (build-signed-interaction-graph network)
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(define vars (hash-keys (network-functions network)))
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(weighted-graph/directed
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(for*/list : (Listof (List Integer Any Any))
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([x (in-list vars)]
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[y (in-list vars)]
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[sign (in-value (get-interaction-sign network x y))]
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#:unless (eq? sign #f))
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(list sign x y))))
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(: build-signed-interaction-graph/form (All (a) (-> (NetworkForm a) Graph)))
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(define (build-signed-interaction-graph/form nf)
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(build-signed-interaction-graph (network-form->network/any nf)))
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(module+ test
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(test-case "build-signed-interaction-graph"
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(cond
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[skip-expensive-tests?
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(displayln "Skipping test case build-signed-interaction-graph.")]
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[else
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(define n1 (make-boolean-network-form
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(hash 'x '(not y)
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'y 'x
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'z '(and y z)
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't '(or (and (not x) y)
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(and x (not y))))))
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(check-equal? (graphviz (build-signed-interaction-graph/form n1))
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"digraph G {\n\tnode0 [label=\"y\"];\n\tnode1 [label=\"t\"];\n\tnode2 [label=\"z\"];\n\tnode3 [label=\"x\"];\n\tsubgraph U {\n\t\tedge [dir=none];\n\t\tnode2 -> node2 [label=\"1\"];\n\t}\n\tsubgraph D {\n\t\tnode0 -> node1 [label=\"0\"];\n\t\tnode0 -> node2 [label=\"1\"];\n\t\tnode0 -> node3 [label=\"-1\"];\n\t\tnode3 -> node1 [label=\"0\"];\n\t\tnode3 -> node0 [label=\"1\"];\n\t}\n}\n")
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(define n-multi (hash 'x '(min (+ y 1) 2)
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'y '(max (- y 1) 0)
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'z '(- 2 y)
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't '(abs (- y 1))))
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(define 123-doms (make-same-domains '(x y z t) '(0 1 2)))
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(define n2 (network-form n-multi 123-doms))
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(check-equal? (graphviz (build-signed-interaction-graph/form n2))
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"digraph G {\n\tnode0 [label=\"y\"];\n\tnode1 [label=\"t\"];\n\tnode2 [label=\"z\"];\n\tnode3 [label=\"x\"];\n\tsubgraph U {\n\t\tedge [dir=none];\n\t\tnode0 -> node0 [label=\"1\"];\n\t}\n\tsubgraph D {\n\t\tnode0 -> node1 [label=\"0\"];\n\t\tnode0 -> node2 [label=\"-1\"];\n\t\tnode0 -> node3 [label=\"1\"];\n\t}\n}\n")])))
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)
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(require 'typed)
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@ -622,51 +661,6 @@
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(define update-function-form? any/c)
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;;; ============================
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;;; Inferring interaction graphs
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;;; ============================
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;;; Given a network, builds its signed interaction graph. The graph
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;;; has variables as nodes and has a directed edge from x to
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;;; y labelled by the value get-interaction-sign for these variables,
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;;; in that order, unless this value is #f.
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(define (build-signed-interaction-graph network)
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(define vars (hash-keys (network-functions network)))
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(weighted-graph/directed
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(for*/list ([x (in-list vars)]
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[y (in-list vars)]
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[sign (in-value (get-interaction-sign network x y))]
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#:unless (eq? sign #f))
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(list sign x y))))
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;;; Like build-signed-interaction-graph, but takes a network form and
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;;; converts it a to a network.
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(define build-signed-interaction-graph/form
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(compose build-signed-interaction-graph network-form->network/any))
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(module+ test
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(test-case "build-signed-interaction-graph"
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(cond
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[skip-expensive-tests?
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(displayln "Skipping test case build-signed-interaction-graph.")]
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[else
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(define n1 (make-boolean-network-form
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(hash 'x '(not y)
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'y 'x
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'z '(and y z)
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't '(or (and (not x) y)
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(and x (not y))))))
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(check-equal? (graphviz (build-signed-interaction-graph/form n1))
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"digraph G {\n\tnode0 [label=\"y\"];\n\tnode1 [label=\"z\"];\n\tnode2 [label=\"x\"];\n\tnode3 [label=\"t\"];\n\tsubgraph U {\n\t\tedge [dir=none];\n\t\tnode1 -> node1 [label=\"1\"];\n\t}\n\tsubgraph D {\n\t\tnode0 -> node2 [label=\"-1\"];\n\t\tnode0 -> node3 [label=\"0\"];\n\t\tnode0 -> node1 [label=\"1\"];\n\t\tnode2 -> node3 [label=\"0\"];\n\t\tnode2 -> node0 [label=\"1\"];\n\t}\n}\n")
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(define n-multi (hash 'x '(min (+ y 1) 2)
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'y '(max (- y 1) 0)
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'z '(- 2 y)
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't '(abs (- y 1))))
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(define 123-doms (make-same-domains '(x y z t) '(0 1 2)))
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(define n2 (network-form n-multi 123-doms))
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(check-equal? (graphviz (build-signed-interaction-graph/form n2))
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"digraph G {\n\tnode0 [label=\"y\"];\n\tnode1 [label=\"z\"];\n\tnode2 [label=\"x\"];\n\tnode3 [label=\"t\"];\n\tsubgraph U {\n\t\tedge [dir=none];\n\t\tnode0 -> node0 [label=\"1\"];\n\t}\n\tsubgraph D {\n\t\tnode0 -> node2 [label=\"1\"];\n\t\tnode0 -> node3 [label=\"0\"];\n\t\tnode0 -> node1 [label=\"-1\"];\n\t}\n}\n")])))
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;;; ====================
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;;; Dynamics of networks
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;;; ====================
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@ -482,6 +482,29 @@ converts it a to @racket[(Network a)] first.
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(b . (not b))))))
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]}
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@defproc[(build-signed-interaction-graph [network (Network a)]) Graph]{
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Given a network, builds its signed interaction graph. The graph has variables
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as nodes and has a directed edge from @italic{x} to @racket{y} labelled by the
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value @racket[get-interaction-sign] produces for these variables, in that
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order, unless this value is @racket[#f].
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@ex[
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(dotit (build-signed-interaction-graph
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(forms->boolean-network #hash((a . (and a b))
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(b . (not b))))))
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]}
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@defproc[(build-signed-interaction-graph/form [nf (NetworkForm a)]) Graph]{
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Like @racket[build-signed-interaction-graph], but takes a network form and
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converts it to a network.
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@ex[
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(dotit (build-signed-interaction-graph/form
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(make-boolean-network-form #hash((a . (and a b))
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(b . (not b))))))
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]}
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@section{Tabulating functions and networks}
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