Sentences with phrase «robust trend»

200 years of trend following: in case you were curious about how robust trend following has been over time, this research paper provides a pretty compelling case.

The IPCC notes in its most recent scientific assessment that there are «[n] o robust trends in annual numbers of tropical storms, hurricanes and major hurricanes counts have been identified over the past 100 years in the North Atlantic basin,» and that there are «no significant observed trends in global tropical cyclone frequency.»

This is also the motivation for other alternatives such as robust trend estimation (which minimizes the distance rather than squared distance from the linear model; but it doesn't have the nice closed - form analytical solution that least squares has).

To better reflect reality, I looked more closely at the evolution of the ratio of crude oil, natural gas and coal in the fossil fuels mix and I noticed that natural gas and crude oil exhibit very robust trends...

The discrepancies were found because the models over-predict warming in the tropical troposphere, and robust trend estimators indicate that the difference is statistically highly significant, so that the models on average predict a trend that is significantly higher than any individual observational series or all observational series averaged together.

More robust trends are indicated for the next 50 years, with all locations showing > 95 % chance of warming (Fig. 10c) and a > 85 % chance of increasing P over northern Europe and western Russia as well as most of eastern North America, and a > 85 % chance of drying over northwestern Africa and regions directly adjacent to the Mediterranean Sea (Fig. 10d).

Nevertheless, in the Northern hemisphere mid-latitudes (which encompass the UK), where the long - term observations are densest, there is a robust trend of increasing precipitation4.

And it would interesting also if you're able to demystify conterproductive beliefs surrounding the methodology through which one backtests and designs a robust trend following system (such as number of parameters, indicators chosen, opmitization, «walk forwards», etc.).

He offered these thoughts and studies, which, in the aggregate, point to no robust trend either in extreme downpours or extreme stream flows:

For GHG forcing only, the linear trend results are very similar to those using the robust trend.

For full anthropogenic forcing, the linear trend results are qualitatively the same as the robust trend results.

Over 1900 — 2005 the observed trend is substantially greater than the model expectation: a probability of 87 % for the linear trend compared with 78 % for the robust trend.

Over 1950 — 2005, the observed warming trend is slightly greater than the model expectation: a probability of 57 % for the linear trend compared with 61 % for the robust trend.

Lomborg argues that 18 years could be too short for a robust trend comparison because of decadal variations in trend — but the 42 - year period analysed by IPCC yields the same result.

Despite an 8 % increase YoY in new supply, Ho Chi Minh City continued its robust trend with high average occupancy at approximately 95 % and average grade A rents up 8 % YoY.