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ortools-clone/docs/cpp_algorithms/todo.html
2019-06-29 18:18:08 +02:00

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<div class="title">Todo List </div> </div>
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<dt>Namespace <a class="el" href="namespaceoperations__research.html">operations_research</a> </dt>
<dd><p class="startdd"><a class="anchor" id="_todo000001"></a>(user,user): refine this toplevel comment when this file settles.</p>
<p class="interdd"><a class="anchor" id="_todo000007"></a>(user): base this code on LinearSumAssignment. </p>
<p class="enddd"><a class="anchor" id="_todo000008"></a>(user) Multi-dimensional knapsack problem with n-ary conflicts between items. </p>
</dd>
<dt>Class <a class="el" href="classoperations__research_1_1DynamicPartition.html">operations_research::DynamicPartition</a> </dt>
<dd><a class="anchor" id="_todo000002"></a>(user): rename this to BacktrackableSplittingPartition. </dd>
<dt>Member <a class="el" href="classoperations__research_1_1DynamicPartition.html#a16fce09dd4c359a6acfd0a864e0a5ebd">operations_research::DynamicPartition::Refine</a> (const std::vector&lt; int &gt; &amp;distinguished_subset)</dt>
<dd><a class="anchor" id="_todo000003"></a>(user): the graph symmetry finder could probably benefit a lot from keeping track of one additional bit of information for each part that remains unchanged by a <a class="el" href="classoperations__research_1_1DynamicPartition.html#a16fce09dd4c359a6acfd0a864e0a5ebd" title="Refines the partition such that elements that are in distinguished_subset never share the same part a...">Refine()</a> operation: was that part entirely <em>in</em> the distinguished subset or entirely <em>out</em>? </dd>
<dt>Member <a class="el" href="classoperations__research_1_1DynamicPermutation.html#acf9308c2eb8d7c1d5b5e3193c672f36d">operations_research::DynamicPermutation::LooseEnds</a> () const</dt>
<dd><a class="anchor" id="_todo000004"></a>(user): use a faster underlying container like SparseBitSet, and tweak this API accordingly. </dd>
<dt>Member <a class="el" href="classoperations__research_1_1GraphSymmetryFinder.html#a0923c1bbc2e1514814a1d7fa55d7b0dc">operations_research::GraphSymmetryFinder::FindSymmetries</a> (double time_limit_seconds, std::vector&lt; int &gt; *node_equivalence_classes_io, std::vector&lt; std::unique_ptr&lt; SparsePermutation &gt; &gt; *generators, std::vector&lt; int &gt; *factorized_automorphism_group_size)</dt>
<dd><a class="anchor" id="_todo000006"></a>(user): verify the minimality in unit tests. </dd>
<dt>Member <a class="el" href="classoperations__research_1_1GraphSymmetryFinder.html#af670a8f7f325e3a7431f2723c52ec25d">operations_research::GraphSymmetryFinder::GraphSymmetryFinder</a> (const Graph &amp;graph, bool is_undirected)</dt>
<dd><a class="anchor" id="_todo000005"></a>(user): support multi-arcs. </dd>
<dt>Class <a class="el" href="structoperations__research_1_1KnapsackAssignment.html">operations_research::KnapsackAssignment</a> </dt>
<dd><p class="startdd"><a class="anchor" id="_todo000009"></a>(user): Add a new propagator class for conflict constraint.</p>
<p class="enddd"><a class="anchor" id="_todo000010"></a>(user): Add a new propagator class used as a guide when the problem has several dimensions. </p>
</dd>
<dt>Class <a class="el" href="classoperations__research_1_1KnapsackGenericSolver.html">operations_research::KnapsackGenericSolver</a> </dt>
<dd><a class="anchor" id="_todo000011"></a>(user): In the case of a multi-dimensional knapsack problem, implement an aggregated propagator to combine all dimensions and give a better guide to select the next item (see, for instance, Dobson's aggregated efficiency). </dd>
<dt>Member <a class="el" href="classoperations__research_1_1SparsePermutation.html#a9fc0ca5752b5ad6cc2a78ff7c512b22a">operations_research::SparsePermutation::LastElementInCycle</a> (int i) const</dt>
<dd><a class="anchor" id="_todo000013"></a>(user): Provide a full iterator for this? Note that we have more information with the loop above. Not sure it is needed though. </dd>
<dt>Member <a class="el" href="classoperations__research_1_1SparsePermutation.html#aff385d18c768ffa364c5dccb5fb35c0a">operations_research::SparsePermutation::Size</a> () const</dt>
<dd><a class="anchor" id="_todo000012"></a>(user,user): complete the reader API. </dd>
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