Results 31 to 40 of about 315,014 (312)

Longitudinal variability of time-location/activity patterns of population at different ages: a longitudinal study in California

Environmental Health, 2011
Background Longitudinal time-activity data are important for exposure modeling, since the extent to which short-term time-activity data represent long-term activity patterns is not well understood.
Cassady Diana L, Lee Kiyoung, Bennett Deborah H, Wu Xiangmei, Ritz Beate, Hertz-Picciotto Irva   +5 more
doaj   +1 more source

Maximizing Data Quality using Mode Switching in Mixed-Device Survey Design: Nonresponse Bias and Models of Demographic Behavior

Methoden, Daten, Analysen, 2015
Conducting survey interviews on the internet has become an attractive method for lowering data collection costs and increasing the frequency of interviewing, especially in longitudinal studies.
William G. Axinn, Heather H. Gatny, James Wagner   +2 more
doaj   +1 more source

Exploring Public Preferences, Priorities, and Policy Perspectives for Controlling Invasive Mosquito Species in Greece

Tropical Medicine and Infectious Disease, 2019
Climate change, urbanization, and financial crisis have created a dramatic mixture of challenges in Southern Europe, increasing further the risks of transmission of new vector-borne diseases.
Antonios Kolimenakis, Dionysios Latinopoulos, Kostas Bithas, Clive Richardson, Konstantinos Lagouvardos, Angeliki Stefopoulou, Dimitrios Papachristos, Antonios Michaelakis   +7 more
doaj   +1 more source

Going web or staying paper? The use of web-surveys among older people

BMC Medical Research Methodology, 2020
Background Web-surveys are increasingly used in population studies. Yet, web-surveys targeting older individuals are still uncommon for various reasons.
Susanne Kelfve, Marie Kivi, Boo Johansson, Magnus Lindwall   +3 more
doaj   +1 more source

Comparison of the Differences Between Web-Based and Traditional Questionnaire Surveys in Pediatrics: Comparative Survey Study

Journal of Medical Internet Research, 2021
BackgroundA web-based survey is a novel method for data capture. Some studies have applied web-based surveys in pediatrics, but few of them have reported data on the differences between web-based and traditional questionnaire ...
Heping Fang, Ruoling Xian, Zhuoying Ma, Mingyue Lu, Yan Hu   +4 more
doaj   +1 more source

Telephone versus web panel National Survey for monitoring adoption of preventive behaviors to climate change in populations: a case study of Lyme disease in Québec, Canada

BMC Medical Research Methodology, 2020
Background To monitor the adoption of climate change adaptive behaviors in the population, public health authorities have to conduct national surveys, which can help them target vulnerable subpopulations.
Grâce Ngambo Domche, Pierre Valois, Magalie Canuel, Denis Talbot, Maxime Tessier, Cécile Aenishaenslin, Catherine Bouchard, Sandie Briand   +7 more
doaj   +1 more source

Handbook of Web Surveys

, 2011
Best practices to create and implementhighly effective web surveysExclusively combining design and sampling issues, Handbook of Web Surveys presents a theoretical yet practical approach to creating and conducting web surveys. From the history of web surveys to various modes of data collection to tips for detecting error, this book thoroughly introduces
BETHLEHEM, JELKE, BIFFIGNANDI, Silvia
openaire   +3 more sources

Essay: Sunday shopping - The case of three surveys

Survey Research Methods, 2015
There is a growing discussion about the use of non-probability sampling in survey research. Probability sampling is the preferred method of sample selection, but practical problems like reduced data collection budgets, increasing nonresponse rates, and ...
Jelke Bethlehem
doaj   +1 more source

A survey of Web clustering engines [PDF]

ACM Computing Surveys, 2009
Web clustering engines organize search results by topic, thus offering a complementary view to the flat-ranked list returned by conventional search engines. In this survey, we discuss the issues that must be addressed in the development of a Web clustering engine, including acquisition and preprocessing of search results, their clustering and ...
Claudio Carpineto, Stanislaw Osinski, Giovanni Romano 0002, Dawid Weiss   +3 more
openaire   +1 more source

Survey of Web Crawling Algorithms [PDF]

Advances in Vision Computing: An International Journal, 2014
The World Wide Web is the largest collection of data today and it continues increasing day by day. A web crawler is a program from the huge downloading of web pages from World Wide Web and this process is called Web crawling. To collect the web pages from www a search engine uses web crawler and the web crawler collects this by web crawling.
J, Rahulkumar, J, ANURAGA, Aggarwal, Chetana   +2 more
openaire   +7 more sources