How Much Evidence Should One Collect?

This paper focuses on the question how much evidence one should collect before deciding on the truth-value of a proposition. An analysis is given of a model where evidence takes the form of Bernoulli-distributed random variables. From a Bayesian perspective, the optimal strategy depends on the potential loss of drawing the wrong conclusion about the proposition and the cost of collecting evidence. It turns out to be best to collect only small amounts of evidence unless the potential loss is very large relative to the cost of collecting evidence

Collect

Participated in Collect at the Saatchi Gallery, London. Organised by the Crafts Council

Instrument to collect fogwater for chemical analysis

An instrument is presented which collects large samples of ambient fogwater by impaction of droplets on a screen. The collection efficiency of the instrument is determined as a function of droplet size, and it is shown that fog droplets in the range 3–100-µm diameter are efficiently collected. No significant evaporation or condensation occurs at any stage of the collection process. Field testing indicates that samples collected are representative of the ambient fogwater. The instrument may easily be automated, and is suitable for use in routine air quality monitoring programs

Efficient Mobile Data Collection with Mobile Collect

WISENET (NES)PromosCONE

Collect Her

Many writers, including Virgina Woolf and Marcel Proust, structure memory out of the space and furnishings of the home. Drawers, beds ands cupboards become secret hiding places for untold personal stories.......

How to collect data on household energy consumption

The existence of reliable, disaggregated information on residential fuel consumption and supply is essential to the formulation of sound household energy strategies. This report presents guidelines for designing and administering household energy surveys. The report is composed of four chapters. Following the introduction, chapter 1 presents the existing methodologies and the advantages and disadvantages of each. Chapter 3 discusses household energy surveying, from survey and questionaire design through fieldwork and data processing/analysis. Finally, in chapter 4, a checklist is presented for use as a quick reference during the creation of a household energy survey.Energy and Environment,Social Analysis,Energy Conservation&Efficiency,Engineering,Transport and Environment

Google Maps to collect spatial responses in a survey environment

This paper examines the use of Google Maps-based tools to collect spatial responses from participants during academic research surveys conducted via the Internet. Using two recent examples from the University of East Anglia it discusses the online survey context and how Google Maps was used, issues surrounding the technical implementation of these tools, processing and use of the collected data, and concludes with considerations for future research that might employ similar methods