Here while we reminisce about how partial directed coherence was proposed, its motivation and evolution, we take the opportunity to relate it to some of its kin quantities and some of its offspring. Emphasis is placed on our development of asymptotic criteria to place it as a reliable investigation tool, where the connectivity detection problem is completely solved as opposed to what we call the characterization problem. We end by musing over some points now on our wishlist.

中文翻译：

---

部分有向连贯性：二十年的一些历史和评价

在这里，当我们回忆部分有向相干是如何被提出、它的动机和演变时，我们借此机会将它与它的一些亲属数量和它的一些后代联系起来。重点放在我们开发渐近标准上，将其作为可靠的调查工具，在这种情况下，连通性检测问题完全解决，而不是我们所谓的表征问题。最后，我们对愿望清单上的一些要点进行了思考。