Sentences with phrase «modeling assumptions about»

This «induced deforestation» hypothesis is based on questionable data and modeling assumptions about available land and yields, rather than on empirical evidence.

Not exact matches

I have talked about this before: All economic and budget models are based on assumptions.

And it would not be until they questioned their own most basic assumptions about «the way Magellan's was managed» — the company's dependence on them, the heroic - leader model they'd brought into the company from day one — that they would have a shot at doing what few founders can when the wall confronts them: getting through it.

The model on which it was based is a marvel of restrictive assumptions: an economy that is closed to trade, expectations about inflation that are essentially myopic, interest rates that are largely impervious to the demand for credit and investment that is largely impervious to interest rates.

What I like about the model I have described above is that it doesn't allow analysts to hide their implicit assumptions about credit growth, GDP growth, and the relationship between the two.

This retrospective summarizes key models that make psychology - based assumptions about: individual preferences; individual beliefs; and, the process by which individuals make decisions.

«The thing about mathematical modelling is that in order to make problems tractable, you need to make assumptions.

We build up a simplified model of reality by making assumptions about how the world works, and then we try to assume everything away apart from that specific issue we are focusing on.

Yes, Bigfoot would force us to modify our map of known species, but it wouldn't completely invalidate the Standard Model and all of our working assumptions about the observed properties of the natural world.

The training we receive in the scientific method and model construction habituates us to making certain assumptions about who we are and how we relate to nature.

These models used basic, stylised assumptions about individual behaviour.

Moreover, it closely mirrors the theoretical approaches in economics: it is a model which utilises relatively basic assumptions about human behaviour in a stylised choice setting in order to draw conclusions about individual preferences.

If you read the Reed / Horton September report, you will see it is very clear about the modelling assumptions necessary.

These developments could also significantly affect the assumptions about the nature and extent of travel growth Government makes in transport models and appraisal.

«Even with generous assumptions about the properties of the radicals, we predict tiny effects of these radiofrequency fields, and the main conclusion that we come to is that the current understanding of the radical - pair model can't explain any of the reported behavioral results,» says Hore.

The study used models to estimate marine mammal consumption of chinook salmon based on several assumptions about their diet and the size and weight of salmon.

Do the assumptions about motivation of employees and observability of performance formalized in agency models hold?

Because 2 - D models make simplified assumptions about some aspects of the flow, they can't account for changes in the flow, such as when the flood wave moves around large obstacles, changes rapidly in direction, or fully immerses bridge decks.

MOND researchers had tried to do this before, but for their models to work, they had to make an untested assumption about the relationship between a star's mass and the amount of light it puts out.

However, the model depends heavily on assumptions about the way soot particles form, he says.

Limited by the era's computers and understanding of physics, Wilson's model relied on simplifications — such as the star being a perfect sphere — and incorrect assumptions about the behavior of very dense matter and how neutrinos move from the core's interior to the crucial outer parts where the heating of the shock wave occurs.

Using a new class of mathematical models that do not make many assumptions about how behavior is organized, we will deconstruct the mouse's normal behavior into motifs, or syllables, and correlate those with brain activity.

On the limited information available to me, they seem quite promising — but it certainly would have been helpful in making judgments on this point if the IPCC had modelled a low - medium population projection (as in the A1 and B1 scenarios) which made more moderate assumptions about growth in output and energy use.

In Figure 1, I use the NCAR radiation model, and don't make any assumption about the apparent sky emittance.

The models» assumptions about these factors are not realistic.

Your statement on mistaken assumption # 5 about climate model projections being theoretically based rather than empirically based is well made.

Scientists unaffiliated with the study said it highlights a flaw in climate models and can help update their assumptions about the ability of forests to sequester carbon.

«Climate models can easily make assumptions about reductions in future greenhouse gas emissions and project the implications, but they do this with no rational basis for human responses,» Gross said.

Thereby, the model makes no assumptions about how new alleles have been evolved, whether by drift or natural selection.

People talk about animal models so this an animal model of human obesity is the idea, but the problem with the model is you never know how they differ from the real thing and you never know about what assumptions you're working under.

If three - fourths of North Carolina's classrooms were to implement Opportunity Culture models over one generation of students — about 16 years of implementation — we projected, using conservative assumptions, that:

What a school actually does — and how it performs its role to help children learn — rather than broad assumptions about the correct size, instructional program or governance model, should drive our efforts to ensure that these public schools are helping children succeed.

Using several federal databases, the authors examine the current context and model projections of future trends under several different assumptions about factors influencing supply and demand, including new entrants, re-entrants, projected hires, and attrition rates.

He in essence suggested that because the curriculum wars have been decided more or less empirically, that people bent on disrupting the classroom and the factory - model education system were doing so under faulty assumptions about how students learn.

The teacher unions are trapped in archaic organizational models characterized by buildings and districts that are too large and too fragmented, compulsory attendance, the 180 - day school year, the 50 - minute period, age - grouping of students in 13 discrete grades, few performance or standards - based activities, and inaccurate assumptions about the dangers of privatization.

It's a model that seems certain to make us question assumptions about how we organize classrooms and schools.

This strategy promotes a canonical learning cycle where students use the scientific method continually to refine their mental models through the development of procedural knowledge, declarative knowledge, and assumptions about the focus concept (Oliver & Hannafin, 2001).

[21] In essence, the comparison of value - added scores is not based on the data but is entirely based on the analyst's assumptions about the model.

But different value - added models make different assumptions about how much variation in test scores should be attributed to teachers.

It's the same story with the reliability: as the Giulia sits on an all - new platform, set to underpin a huge range of new models over the next few years, there's nothing to base assumptions about reliability on yet, aside from perceived build quality, which seems solid on first impressions.

Moreover, we can also talk about the units that will be hidden under the bonnet of the German model, even if for now are just assumptions.

My goal is to help you understand some of the assumptions I've made about the publishing process (which follows a traditional model), as well as where you can save time and expense.

Investors need to ask their advisors about the assumptions being used in modelling their retirement projections.

The Next Season The Research Affiliates model uses a building - block approach to estimate global asset class expected returns.2 For commercial property, we estimate expected real return beginning with the anticipated capitalization rate adjusted for our assumptions about reserve requirements and the expected constant - quality price change.

Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk, for example, the risk inherent in a particular valuation technique used to measure fair value including such a pricing model and / or the risk inherent in the inputs to the valuation technique.

That's the assumption I immediately jumped to too, since it was mentioned during the part about the model home feature.

The unconscious aura of titillation that arises from a visual representation of an aspiring woman artist in the mid-19th century, Emily Mary Osborne's heartfelt painting, Nameless and Friendless, 1857, a canvas representing a poor but lovely and respectable young girl at a London art dealer, nervously awaiting the verdict of the pompous proprietor about the worth of her canvases while two ogling «art lovers» look on, is really not too different in its underlying assumptions from an overtly salacious work like Bompard's Debut of the Model.

Your statement on mistaken assumption # 5 about climate model projections being theoretically based rather than empirically based is well made.

While this work is just beginning, one thing is clear is that the models are very sensitive to assumptions about a few pivotal technologies.

On the limited information available to me, they seem quite promising — but it certainly would have been helpful in making judgments on this point if the IPCC had modelled a low - medium population projection (as in the A1 and B1 scenarios) which made more moderate assumptions about growth in output and energy use.