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Constraint Satisfaction Networks
Original title: 拘束条件充足ネットワーク
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(Constraint Satisfaction Network) is a network model for finding solutions satisfying multiple constraints in artificial intelligence and computer science. Overview: Components: 3 elements—variables, the ranges of their values (domains), and constraint relationships between variables. Representation: A graph structure with variables as “nodes (points)” and constraints as “edges (lines).” Purpose: To find combinations of variables (solutions) that satisfy all constraints simultaneously. Representative network models: CPN (Constraint Posting Network): A model that flexibly adds and changes constraints. Boltzmann machine: A neural network that changes states probabilistically and maximizes constraints. Hopfield network: A model that converges to a state (solution) minimizing an energy function. 🛠 Specific applications: Sudoku and crosswords: Rules against duplicate numbers or letters in cells serve as constraints. Map coloring: The constraint that adjacent regions must not be colored the same. Timetables and shift creation: Scheduling that considers room availability and work preferences.
(Constraint Satisfaction Network)は、人工知能や計算機科学において、複数の制約を満たす解を見つけるためのネットワークモデルです。 概要構成要素:変数、変数の値の範囲(ドメイン)、変数間の制約関係の3つ。表現方法:変数を「ノード(点)」、制約を「エッジ(線)」とするグラフ構造で表す。目的:すべての制約を同時に満たす変数の組み合わせ(解)を求める。代表的なネットワークモデルCPN(Constraint Posting Network):柔軟に制約を追加・変更するモデル。ボルツマンマシン:確率的に状態を変化させ、制約を最大化するニューラルネットワーク。ホップフィールドネットワーク:エネルギー関数が最小となる状態(解)に収束するモデル。🛠 具体的な応用例数独・クロスワード:マス目の数字や文字の重複ルールを制約とする。地図の色分け:隣り合う地域に同じ色を塗らないという制約。時間割・シフト作成:部屋の空き状況や勤務希望を考慮したスケジュール調整
Source updated 2026-08-25 · Snapshot 2026-10-08
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