Sentences with phrase «number of proxies»

«If you look at the market returns in the preceding year, a higher number of proxy contests tend to happen in years following poor market returns.

The reconstruction all the way back to the year 1400 used 22 proxy data series, although some of the 22 were combinations of larger numbers of proxy series by a method known as «principal components analysis» (hereafter called «PCA» — see here).

The study uses a large number of proxy data sets to create a global temperature mean they call G7 spanning the last 2000 years.

As is often the case with these proxy reconstructions, the authors found the error bars in the reconstruction (the uncertainty) increased further back in time, due to a decreasing number of proxy records, and was not useful past 1,450 years ago.

Of course, pre-screening a large number of proxy candidates for significance before aggregating them could easily give a composite proxy that was spuriously significant.

Because there are only a small number of proxy series whose records cover the last millennium, some proxy series end up being re-used in different proxy - based estimates.

One of the holes is the absence of a firm promise from Iran, a country with which Saudi Arabia is engaged in a number of proxy wars.

Jaguar is known in Canada as an activist investor and has launched a number of proxy contests and take - over bids to unlock value at Canadian companies.

[Response: At the time (late 1990s), most of the data in the archives had been collected in the 1980s or even earlier, and so the number of proxies decreased rapidly after 1980.

Since the hockey stick paper in 1998, there have been a number of proxy studies analysing a variety of different sources including corals, stalagmites, tree rings, boreholes and ice cores.

All 73 of their proxies cover the time span 5500 to 4500 BP (calendar years -3550 to -2550), but as time marches forward the number of proxies which still have data dwindles, especially toward the end of the reconstruction (1940) by which time only 18 proxies remain.

From the MW paper, it sounds like they considered proxy selection and the method used by Mann08 to reduce the number of proxies used, but was suspect that the method may give spurious results:

«Alternatively, the number of proxies can be lowered through a threshold screening process (Mannet al., 2008) whereby each proxy sequence is correlated with its closest local temperature series and only those proxies whose correlation exceeds a given threshold are retained for model building.

David has also acted on a number of proxy battles, for both dissident shareholders and defending boards, and is securities law counsel for several of our public company clients, providing guidance on board and governance matters.