DESCQA：一个合成天表的自动验证框架
DESCQA: An Automated Validation Framework for Synthetic Sky Catalogs
摘要：
使用高质量的模拟天表对于宇宙学巡天的成功是必不可少的。目录有不同的应用，如调查宇宙学可观测量的基础物理签名，了解系统的不确定性对测量信号的影响，并测试减少这些不确定性的缓解策略，帮助分析管道开发和测试，以及调查策略优化。随着目录质量的提高和它们所能提供的细节的增加，应用程序的清单也在增加。鉴于模拟目录的重要性，提供严格的验证协议，使目录提供商和用户能够以直接和全面的方式评估目录的质量至关重要。为此，我们已经开发了大型综合巡天望远镜暗能量科学合作以及更广泛的社区的DESCQA框架。DESCQA的目标是通过在自动化框架内提供一个公共接口来检查、验证和比较一组不均匀的合成星表。在本文中，我们提出的设计概念和第一次实现的DESCQA。为了建立和展示其全部功能，我们使用了一组临时目录和验证测试。我们强调了几个重要的方面，技术和科学，需要深思熟虑的考虑时，设计一个验证框架，包括验证指标，以及这些指标如何对合成天空目录的要求。
英文摘要：
The use of high-quality simulated sky catalogs is essential for the success of cosmological surveys. The catalogs have diverse applications, such as investigating signatures of fundamental physics in cosmological observables, understanding the effect of systematic uncertainties on measured signals and testing mitigation strategies for reducing these uncertainties, aiding analysis pipeline development and testing, and survey strategy optimization. The list of applications is growing with improvements in the quality of the catalogs and the details that they can provide. Given the importance of simulated catalogs, it is critical to provide rigorous validation protocols that enable both catalog providers and users to assess the quality of the catalogs in a straightforward and comprehensive way. For this purpose, we have developed the DESCQA framework for the Large Synoptic Survey Telescope Dark Energy Science Collaboration as well as for the broader community. The goal of DESCQA is to enable the inspection, validation, and comparison of an inhomogeneous set of synthetic catalogs via the provision of a common interface within an automated framework. In this paper, we present the design concept and first implementation of DESCQA. In order to establish and demonstrate its full functionality we use a set of interim catalogs and validation tests. We highlight several important aspects, both technical and scientific, that require thoughtful consideration when designing a validation framework, including validation metrics and how these metrics impose requirements on the synthetic sky catalogs.
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