منابع مشابه
Seismology and CTBT Verification
It is well-known that the design and production of nuclear weapons required major efforts in scientific research and engineering, with a supporting infrastructure of weapons laboratories. Less well-known, is that scientific research and development have also played an important role in nuclear arms control. In this paper, my purpose is to explain the role of seismology in treaty verification; t...
متن کامل3 Serious Flaws in
Understanding the effect of a heuristic on the time complexity of the well-known A∗ search algorithm has been a subject of a large research body in AI. Among those researches is Korf et al.’s analysis (Korf & Reid, 1998; Korf et al., 2001; Korf, 2000a; Korf, 2000b), which concluded that the effect of a heuristic is to reduce the effective depth rather than effective branching factor. Since this...
متن کاملImproved Focal Depth Determination for Use in Ctbt Monitoring
Seismic event location remains as one of the most important discriminants for separating natural tectonic and explosive events. However, in order to be useful for discrimination purposes, the uncertainties associated with seismic locations must be well defined and reliable, and this has proven to be difficult to accomplish to the required degree of accuracy. In particular, high-confidence estim...
متن کاملDesign flaws in EuroSCORE II.
We recently read with great interest and anticipation the development of the EuroSCORE II. However, we have methodological concerns relating to how EuroSCORE II was developed and evaluated [1] and subsequent comments made in an editorial by the authors responding to recent criticisms [2]. We focus on the strategy and study design used to derive and evaluate the model. The authors randomly split...
متن کاملFlaws in the Efficiency Gap
Gerrymandering is returning to the Supreme Court. For the first time in three decades, a federal court invalidated redistricting legislation on the grounds that it constituted a partisan gerrymander in violation of the Fourteenth Amendment. That court relied, in part, on a new tool—the efficiency gap—which some have touted as the means to “end gerrymandering once and for all.” We evaluate this ...
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ژورنال
عنوان ژورنال: Nature
سال: 1996
ISSN: 0028-0836,1476-4687
DOI: 10.1038/383662b0