Struct CompetitiveSelectionRanked

Source

pub struct CompetitiveSelectionRanked { /* private fields */ }

Expand description

Stable top-k selection by descending score and ascending candidate index.

§Examples

use automation_structures::CompetitiveSelectionRanked;

let mut selection = CompetitiveSelectionRanked::new(vec![7, 7, 3], 2, 7)?;
selection.select();
assert_eq!(selection.selections(), &[true, true, false]);

Implementations§

Source §

impl CompetitiveSelectionRanked

Source

pub fn new( scores: Vec<u64>, k: usize, max_score: u64, ) -> Result<Self, CompetitiveSelectionError>

Construct an empty selection over the supplied scores.

§Errors

Returns CompetitiveSelectionError::ScoreOutOfRange when a score exceeds max_score.

Examples found in repository ?

examples/catalog.rs (line 49)

21fn main() -> Result<(), Box<dyn Error>> {
22    // Primitives.
23    let mut budget = Budget::new(8);
24    assert!(budget.try_reserve(3));
25    budget.commit_reservation(3)?;
26
27    let mut hierarchy = QualityHierarchy::new(2, 2);
28    hierarchy.set_node_properties(0, 2, 1)?;
29    hierarchy.set_node_properties(1, 1, 2)?;
30    hierarchy.add_child(0, 1)?;
31
32    let mut registry = ResourceRegistry::new();
33    registry.insert(1, 10);
34    assert_eq!(registry.get(1), Some(10));
35
36    let mut hard = CompetitiveSelectionHard::new(2)?;
37    hard.update_score(0, 2)?;
38    hard.update_score(1, 1)?;
39    assert_eq!(hard.evaluate(), 0);
40
41    let mut exclusive = CompetitiveSelectionHardExclusive::new(1, 2, 2)?;
42    exclusive.update_score(0, 0, 2)?;
43    exclusive.update_score(0, 1, 1)?;
44    assert_eq!(exclusive.evaluate(0)?, 0);
45
46    let mut soft = CompetitiveSelectionSoft::begin(vec![3, 1], 4, 3)?;
47    assert_eq!(soft.assign_next()?, 0);
48
49    let mut ranked = CompetitiveSelectionRanked::new(vec![2, 1], 1, 2)?;
50    ranked.select();
51    assert_eq!(ranked.is_selected(0), Some(true));
52
53    let mut actuation = ActuationPass::new(vec![Some(7)]);
54    actuation.actuate(0)?;
55    actuation.finish()?;
56
57    let mut propagation = PropagationPass::new(1, 2, vec![], vec![0])?;
58    propagation.start_round()?;
59    propagation.update_node(0)?;
60    propagation.end_round()?;
61
62    let mut convergence = ConvergenceGovernor::new(2, 6, 2, 10)?;
63    assert_eq!(convergence.update(1)?, 1);
64
65    let mut audit = AuditSink::new(1);
66    assert!(audit.try_record(7));
67    assert!(audit.validate());
68
69    let mut backtracking = BacktrackingTraversal::new(2, 1, 0)?;
70    backtracking.descend(1, 1)?;
71    backtracking.visit()?;
72
73    // Named compositions.
74    let mut snapshot = AllocationSnapshot::new(3, 1);
75    snapshot.accept(0, 3)?;
76
77    let mut federated = FederatedBudget::new(4, 1);
78    assert!(federated.try_delegate(0, 4));
79    assert!(federated.try_allocate(0, 2));
80
81    let mut bisection = Bisection::new(4, 2)?;
82    bisection.converge();
83    assert!(bisection.is_converged());
84
85    let mut classes = EquivalenceClass::new(2, 1);
86    assert!(classes.union(0, 1)?);
87
88    let mut rate_limit = RateLimit::new(1, 1, 1)?;
89    assert!(rate_limit.try_acquire());
90
91    let mut reduction = Reduction::new(vec![2, 3])?;
92    reduction.process_next()?;
93
94    let mut graph = RelationshipGraph::new(2, 1);
95    assert!(graph.add_edge(0, 1, 1)?);
96
97    let mut sampler = Sampler::new(vec![1, 1], 1);
98    sampler.sample(0)?;
99
100    let mut select_then_actuate = SelectThenActuate::new(1, 2)?;
101    select_then_actuate.update_score(0, 0, 1)?;
102    assert_eq!(select_then_actuate.evaluate(0)?, 0);
103    select_then_actuate.actuate(0)?;
104    select_then_actuate.finish()?;
105
106    let mut signal = Signal::new(0, 2, 1)?;
107    assert!(signal.set_value(1)?);
108    signal.notify(0)?;
109
110    let mut traversal = TraversalEngine::new(1, 0, 2)?;
111    traversal.visit(0)?;
112    assert_eq!(traversal.accepted_cost(), 2);
113    traversal.terminate()?;
114
115    // Execution modalities.
116    let mut sequential = Sequential::new(1, 2, 0)?;
117    assert!(sequential.begin_step());
118    assert!(sequential.complete_step(1));
119
120    let mut fork_join = ForkJoin::new(1, 2, 0)?;
121    assert!(fork_join.start_worker(0));
122    assert!(fork_join.complete_worker(0, 1));
123    assert!(fork_join.barrier());
124    assert!(fork_join.produce_output());
125
126    let mut step_graph = StepGraph::new(1, vec![])?;
127    assert!(step_graph.start(0));
128    assert!(step_graph.complete(0));
129
130    let mut stream_graph = StreamGraph::new(3, 1, 1, 2)?;
131    assert!(stream_graph.ingest(1));
132    assert!(stream_graph.advance_first());
133    assert_eq!(stream_graph.consume(), Some(1));
134
135    // Connective roles.
136    let mut cursor = Cursor::new(0);
137    cursor.advance_to(1)?;
138
139    let mut accumulator = Accumulator::new(vec![1]);
140    assert_eq!(accumulator.advance(), Some(1));
141    assert_eq!(accumulator.accumulated(0), Some(1));
142
143    let mut marker = Marker::new(false);
144    assert!(marker.set());
145
146    let mut counter = Counter::new(0);
147    assert!(counter.try_increment());
148
149    let mut buffer = Buffer::new(1);
150    assert_eq!(buffer.push(1), Ok(()));
151    assert_eq!(buffer.pop(), Some(1));
152
153    assert!(projection_consistent(true, true));
154    assert!(strictly_before(0, 1));
155
156    assert_debuggable!(
157        budget,
158        hierarchy,
159        registry,
160        hard,
161        exclusive,
162        soft,
163        ranked,
164        actuation,
165        propagation,
166        convergence,
167        audit,
168        backtracking,
169        snapshot,
170        federated,
171        bisection,
172        classes,
173        rate_limit,
174        reduction,
175        graph,
176        sampler,
177        select_then_actuate,
178        signal,
179        traversal,
180        sequential,
181        fork_join,
182        step_graph,
183        stream_graph,
184        cursor,
185        accumulator,
186        marker,
187        counter,
188        buffer,
189    );
190
191    println!("all public automation structures constructed and exercised");
192    Ok(())
193}

Source

pub fn len(&self) -> usize

Number of candidates.

Source

pub fn is_empty(&self) -> bool

Whether the ranked candidate set is empty.

Source

pub fn limit(&self) -> usize

Requested maximum number of selected candidates.

Source

pub fn max_score(&self) -> u64

Maximum admitted score.

Source

pub fn score(&self, candidate: usize) -> Option<u64>

Read one candidate score.

Source

pub fn is_selected(&self, candidate: usize) -> Option<bool>

Whether one candidate is currently selected.

Examples found in repository ?

examples/catalog.rs (line 51)

21fn main() -> Result<(), Box<dyn Error>> {
22    // Primitives.
23    let mut budget = Budget::new(8);
24    assert!(budget.try_reserve(3));
25    budget.commit_reservation(3)?;
26
27    let mut hierarchy = QualityHierarchy::new(2, 2);
28    hierarchy.set_node_properties(0, 2, 1)?;
29    hierarchy.set_node_properties(1, 1, 2)?;
30    hierarchy.add_child(0, 1)?;
31
32    let mut registry = ResourceRegistry::new();
33    registry.insert(1, 10);
34    assert_eq!(registry.get(1), Some(10));
35
36    let mut hard = CompetitiveSelectionHard::new(2)?;
37    hard.update_score(0, 2)?;
38    hard.update_score(1, 1)?;
39    assert_eq!(hard.evaluate(), 0);
40
41    let mut exclusive = CompetitiveSelectionHardExclusive::new(1, 2, 2)?;
42    exclusive.update_score(0, 0, 2)?;
43    exclusive.update_score(0, 1, 1)?;
44    assert_eq!(exclusive.evaluate(0)?, 0);
45
46    let mut soft = CompetitiveSelectionSoft::begin(vec![3, 1], 4, 3)?;
47    assert_eq!(soft.assign_next()?, 0);
48
49    let mut ranked = CompetitiveSelectionRanked::new(vec![2, 1], 1, 2)?;
50    ranked.select();
51    assert_eq!(ranked.is_selected(0), Some(true));
52
53    let mut actuation = ActuationPass::new(vec![Some(7)]);
54    actuation.actuate(0)?;
55    actuation.finish()?;
56
57    let mut propagation = PropagationPass::new(1, 2, vec![], vec![0])?;
58    propagation.start_round()?;
59    propagation.update_node(0)?;
60    propagation.end_round()?;
61
62    let mut convergence = ConvergenceGovernor::new(2, 6, 2, 10)?;
63    assert_eq!(convergence.update(1)?, 1);
64
65    let mut audit = AuditSink::new(1);
66    assert!(audit.try_record(7));
67    assert!(audit.validate());
68
69    let mut backtracking = BacktrackingTraversal::new(2, 1, 0)?;
70    backtracking.descend(1, 1)?;
71    backtracking.visit()?;
72
73    // Named compositions.
74    let mut snapshot = AllocationSnapshot::new(3, 1);
75    snapshot.accept(0, 3)?;
76
77    let mut federated = FederatedBudget::new(4, 1);
78    assert!(federated.try_delegate(0, 4));
79    assert!(federated.try_allocate(0, 2));
80
81    let mut bisection = Bisection::new(4, 2)?;
82    bisection.converge();
83    assert!(bisection.is_converged());
84
85    let mut classes = EquivalenceClass::new(2, 1);
86    assert!(classes.union(0, 1)?);
87
88    let mut rate_limit = RateLimit::new(1, 1, 1)?;
89    assert!(rate_limit.try_acquire());
90
91    let mut reduction = Reduction::new(vec![2, 3])?;
92    reduction.process_next()?;
93
94    let mut graph = RelationshipGraph::new(2, 1);
95    assert!(graph.add_edge(0, 1, 1)?);
96
97    let mut sampler = Sampler::new(vec![1, 1], 1);
98    sampler.sample(0)?;
99
100    let mut select_then_actuate = SelectThenActuate::new(1, 2)?;
101    select_then_actuate.update_score(0, 0, 1)?;
102    assert_eq!(select_then_actuate.evaluate(0)?, 0);
103    select_then_actuate.actuate(0)?;
104    select_then_actuate.finish()?;
105
106    let mut signal = Signal::new(0, 2, 1)?;
107    assert!(signal.set_value(1)?);
108    signal.notify(0)?;
109
110    let mut traversal = TraversalEngine::new(1, 0, 2)?;
111    traversal.visit(0)?;
112    assert_eq!(traversal.accepted_cost(), 2);
113    traversal.terminate()?;
114
115    // Execution modalities.
116    let mut sequential = Sequential::new(1, 2, 0)?;
117    assert!(sequential.begin_step());
118    assert!(sequential.complete_step(1));
119
120    let mut fork_join = ForkJoin::new(1, 2, 0)?;
121    assert!(fork_join.start_worker(0));
122    assert!(fork_join.complete_worker(0, 1));
123    assert!(fork_join.barrier());
124    assert!(fork_join.produce_output());
125
126    let mut step_graph = StepGraph::new(1, vec![])?;
127    assert!(step_graph.start(0));
128    assert!(step_graph.complete(0));
129
130    let mut stream_graph = StreamGraph::new(3, 1, 1, 2)?;
131    assert!(stream_graph.ingest(1));
132    assert!(stream_graph.advance_first());
133    assert_eq!(stream_graph.consume(), Some(1));
134
135    // Connective roles.
136    let mut cursor = Cursor::new(0);
137    cursor.advance_to(1)?;
138
139    let mut accumulator = Accumulator::new(vec![1]);
140    assert_eq!(accumulator.advance(), Some(1));
141    assert_eq!(accumulator.accumulated(0), Some(1));
142
143    let mut marker = Marker::new(false);
144    assert!(marker.set());
145
146    let mut counter = Counter::new(0);
147    assert!(counter.try_increment());
148
149    let mut buffer = Buffer::new(1);
150    assert_eq!(buffer.push(1), Ok(()));
151    assert_eq!(buffer.pop(), Some(1));
152
153    assert!(projection_consistent(true, true));
154    assert!(strictly_before(0, 1));
155
156    assert_debuggable!(
157        budget,
158        hierarchy,
159        registry,
160        hard,
161        exclusive,
162        soft,
163        ranked,
164        actuation,
165        propagation,
166        convergence,
167        audit,
168        backtracking,
169        snapshot,
170        federated,
171        bisection,
172        classes,
173        rate_limit,
174        reduction,
175        graph,
176        sampler,
177        select_then_actuate,
178        signal,
179        traversal,
180        sequential,
181        fork_join,
182        step_graph,
183        stream_graph,
184        cursor,
185        accumulator,
186        marker,
187        counter,
188        buffer,
189    );
190
191    println!("all public automation structures constructed and exercised");
192    Ok(())
193}

Source

pub fn select(&mut self)

Recompute the stable top-k selection.

Examples found in repository ?

examples/catalog.rs (line 50)

21fn main() -> Result<(), Box<dyn Error>> {
22    // Primitives.
23    let mut budget = Budget::new(8);
24    assert!(budget.try_reserve(3));
25    budget.commit_reservation(3)?;
26
27    let mut hierarchy = QualityHierarchy::new(2, 2);
28    hierarchy.set_node_properties(0, 2, 1)?;
29    hierarchy.set_node_properties(1, 1, 2)?;
30    hierarchy.add_child(0, 1)?;
31
32    let mut registry = ResourceRegistry::new();
33    registry.insert(1, 10);
34    assert_eq!(registry.get(1), Some(10));
35
36    let mut hard = CompetitiveSelectionHard::new(2)?;
37    hard.update_score(0, 2)?;
38    hard.update_score(1, 1)?;
39    assert_eq!(hard.evaluate(), 0);
40
41    let mut exclusive = CompetitiveSelectionHardExclusive::new(1, 2, 2)?;
42    exclusive.update_score(0, 0, 2)?;
43    exclusive.update_score(0, 1, 1)?;
44    assert_eq!(exclusive.evaluate(0)?, 0);
45
46    let mut soft = CompetitiveSelectionSoft::begin(vec![3, 1], 4, 3)?;
47    assert_eq!(soft.assign_next()?, 0);
48
49    let mut ranked = CompetitiveSelectionRanked::new(vec![2, 1], 1, 2)?;
50    ranked.select();
51    assert_eq!(ranked.is_selected(0), Some(true));
52
53    let mut actuation = ActuationPass::new(vec![Some(7)]);
54    actuation.actuate(0)?;
55    actuation.finish()?;
56
57    let mut propagation = PropagationPass::new(1, 2, vec![], vec![0])?;
58    propagation.start_round()?;
59    propagation.update_node(0)?;
60    propagation.end_round()?;
61
62    let mut convergence = ConvergenceGovernor::new(2, 6, 2, 10)?;
63    assert_eq!(convergence.update(1)?, 1);
64
65    let mut audit = AuditSink::new(1);
66    assert!(audit.try_record(7));
67    assert!(audit.validate());
68
69    let mut backtracking = BacktrackingTraversal::new(2, 1, 0)?;
70    backtracking.descend(1, 1)?;
71    backtracking.visit()?;
72
73    // Named compositions.
74    let mut snapshot = AllocationSnapshot::new(3, 1);
75    snapshot.accept(0, 3)?;
76
77    let mut federated = FederatedBudget::new(4, 1);
78    assert!(federated.try_delegate(0, 4));
79    assert!(federated.try_allocate(0, 2));
80
81    let mut bisection = Bisection::new(4, 2)?;
82    bisection.converge();
83    assert!(bisection.is_converged());
84
85    let mut classes = EquivalenceClass::new(2, 1);
86    assert!(classes.union(0, 1)?);
87
88    let mut rate_limit = RateLimit::new(1, 1, 1)?;
89    assert!(rate_limit.try_acquire());
90
91    let mut reduction = Reduction::new(vec![2, 3])?;
92    reduction.process_next()?;
93
94    let mut graph = RelationshipGraph::new(2, 1);
95    assert!(graph.add_edge(0, 1, 1)?);
96
97    let mut sampler = Sampler::new(vec![1, 1], 1);
98    sampler.sample(0)?;
99
100    let mut select_then_actuate = SelectThenActuate::new(1, 2)?;
101    select_then_actuate.update_score(0, 0, 1)?;
102    assert_eq!(select_then_actuate.evaluate(0)?, 0);
103    select_then_actuate.actuate(0)?;
104    select_then_actuate.finish()?;
105
106    let mut signal = Signal::new(0, 2, 1)?;
107    assert!(signal.set_value(1)?);
108    signal.notify(0)?;
109
110    let mut traversal = TraversalEngine::new(1, 0, 2)?;
111    traversal.visit(0)?;
112    assert_eq!(traversal.accepted_cost(), 2);
113    traversal.terminate()?;
114
115    // Execution modalities.
116    let mut sequential = Sequential::new(1, 2, 0)?;
117    assert!(sequential.begin_step());
118    assert!(sequential.complete_step(1));
119
120    let mut fork_join = ForkJoin::new(1, 2, 0)?;
121    assert!(fork_join.start_worker(0));
122    assert!(fork_join.complete_worker(0, 1));
123    assert!(fork_join.barrier());
124    assert!(fork_join.produce_output());
125
126    let mut step_graph = StepGraph::new(1, vec![])?;
127    assert!(step_graph.start(0));
128    assert!(step_graph.complete(0));
129
130    let mut stream_graph = StreamGraph::new(3, 1, 1, 2)?;
131    assert!(stream_graph.ingest(1));
132    assert!(stream_graph.advance_first());
133    assert_eq!(stream_graph.consume(), Some(1));
134
135    // Connective roles.
136    let mut cursor = Cursor::new(0);
137    cursor.advance_to(1)?;
138
139    let mut accumulator = Accumulator::new(vec![1]);
140    assert_eq!(accumulator.advance(), Some(1));
141    assert_eq!(accumulator.accumulated(0), Some(1));
142
143    let mut marker = Marker::new(false);
144    assert!(marker.set());
145
146    let mut counter = Counter::new(0);
147    assert!(counter.try_increment());
148
149    let mut buffer = Buffer::new(1);
150    assert_eq!(buffer.push(1), Ok(()));
151    assert_eq!(buffer.pop(), Some(1));
152
153    assert!(projection_consistent(true, true));
154    assert!(strictly_before(0, 1));
155
156    assert_debuggable!(
157        budget,
158        hierarchy,
159        registry,
160        hard,
161        exclusive,
162        soft,
163        ranked,
164        actuation,
165        propagation,
166        convergence,
167        audit,
168        backtracking,
169        snapshot,
170        federated,
171        bisection,
172        classes,
173        rate_limit,
174        reduction,
175        graph,
176        sampler,
177        select_then_actuate,
178        signal,
179        traversal,
180        sequential,
181        fork_join,
182        step_graph,
183        stream_graph,
184        cursor,
185        accumulator,
186        marker,
187        counter,
188        buffer,
189    );
190
191    println!("all public automation structures constructed and exercised");
192    Ok(())
193}