1. A multiobjective shortest path evolutionary algorithm is presented for acyclic directed graph. 提出一种无圈有向图条件下的多目标最短路径进化算法。
2. By comparing different multi-classification strategies, a diagnosis model based on DAGSVM (directed acyclic graph SVM) is constructed. 通过比较不同的多类分类算法，提出了基于DAGSVM的诊断模型。
3. Directed acyclic graph to describe the process of a project carried out an effective tool, mainly for topological sort and the operation of the critical path. 有向无环图是描述一项工程进行过程的有效工具，主要进行拓扑排序和关键路径的操作。
英英解释
adj.
1. botany; not cyclic; especially having parts arranged in spirals rather than whorls
2. chemistry; not cyclic; having an open chain structure
