A5026680359- Survey Methodology and Nonresponse
- Survey Sampling and Estimation Techniques
- Energy Efficient Wireless Sensor Networks
- Focus Groups and Qualitative Methods
- Economic and Environmental Valuation
- Advanced Fluorescence Microscopy Techniques
- Customer Service Quality and Loyalty
- Health disparities and outcomes
- Opportunistic and Delay-Tolerant Networks
- Data-Driven Disease Surveillance
- Census and Population Estimation
- Antifungal resistance and susceptibility
- Behavioral Health and Interventions
- Statistical Methods and Bayesian Inference
- Statistical Methods and Inference
- Mobile Crowdsensing and Crowdsourcing
- Urban, Neighborhood, and Segregation Studies
- Mobile Ad Hoc Networks
- China's Socioeconomic Reforms and Governance
- Social Media and Politics
- Chinese history and philosophy
- Software-Defined Networks and 5G
- Advanced Electron Microscopy Techniques and Applications
- Social and Intergroup Psychology
- Energy Harvesting in Wireless Networks
Donghua University
2013-2024
Westat (United States)
2015-2024
Peking University First Hospital
2011-2023
Peking University
2011-2023
National University of Defense Technology
2021-2023
University of Virginia
2003-2023
Nanjing University of Posts and Telecommunications
2023
China University of Political Science and Law
2022
McCormick (United States)
2019
Zhejiang Gongshang University
2018
The focus of surveillance missions is to acquire and verify information about enemy capabilities positions hostile targets. Such often involve a high element risk for human personnel require degree stealthiness. Hence, the ability deploy unmanned missions, by using wireless sensor networks, great practical importance military. Because energy constraints devices, such systems necessitate an energy-aware design ensure longevity missions. Solutions proposed recently this type system show...
For many sensor network applications such as military surveillance, it is necessary to provide full sensing coverage a security-sensitive area while at the same time minimizing energy consumption and extending system lifetime by leveraging redundant deployment of nodes. It also preferable for differentiated surveillance service various target areas with different degrees security requirements. In this paper, we propose networks based on an adaptable energy-efficient protocol. protocol, each...
This article describes one of the major efforts in sensor network community to build an integrated system for surveillance missions. The focus this effort is acquire and verify information about enemy capabilities positions hostile targets. Such missions often involve a high element risk human personnel require degree stealthiness. Hence, ability deploy unmanned missions, by using wireless networks, great practical importance military. Because energy constraints devices, such systems...
Abstract This paper examines response times (RT) to survey questions. Cognitive psychologists have long relied on study cognitive processes but time data only recently received attention from researchers. To date, most of the studies in surveys treated either as a predictor or proxy measure for some other variable (e.g. attitude accessibility) greater interest. As result, not been main focus research. Focusing nature and determinants times, this variables that affect how it takes respondents...
Summary Non-response weighting is a commonly used method to adjust for bias due unit non-response in surveys. Theory and simulations show that, reduce effectively without increasing variance, covariate that adjustment needs be highly associated with both the response indicator survey outcome variable. In practice, these requirements pose challenge often overlooked, because those covariates are not observed or may exist. Surveys have recently begun collect supplementary data, such as...
Outdoor exercise is an enjoyable way for individuals to improve fitness, but it dependent on weather conditions. This study examines the association between conditions and outdoor after adjustment age, sex, race, socioeconomic status.We used data representative of American adults from University Michigan/Thomson Reuters June 2013 surveys consumers (core supplement) investigate self-reported behavior in summer winter. Multivariate multinomial logistic regression models estimated odds delayed...
This paper reports a study done to estimate the reliability and validity of answers Youth Adult questionnaires Population Assessment Tobacco Health (PATH) Study.407 adults 117 youth respondents completed wave 4 (2016-2017) PATH Study interview twice, 6-24 days apart. The reinterview data were used questionnaire. Kappa statistics, gross discrepancy rates correlations between initial measure reliability. We examined every item in questionnaire for which there at least 100 observations. After...
Although some researchers have suggested that a tradeoff exists between nonresponse and measurement error, to date, the evidence for this connection has been relatively sparse. We examine data from an alumni survey explore potential links error. Records were available of items, allowing us check accuracy answers. The included sensitive questions about respondent's academic performance compared three methods collection—computer-assisted telephone interviewing (CATI), interactive voice...
Energy efficiency is a fundamental issue for outdoor sensor network systems. This article presents the design and implementation of multidimensional power management strategies in VigilNet, major recent effort to support long-term surveillance using power-constrained devices. A novel tripwire service integrated with an effective sentry duty cycle scheduling order increase system lifetime, collaboratively. The partitions into distinct, nonoverlapping sections allows each section be scheduled...
While the adverse effects of raising a child with autism are well demonstrated, there have been few reports post-traumatic growth mothers children autism. The purpose this research was to explore dimensions in population Mainland China and identify factors facilitating growth. A total 11 pre-school were recruited from five rehabilitation centres disabilities Shanghai. semi-structured interviews conducted between August 2012 October analysed using thematic analysis. data partially confirmed...
Nonresponse is a significant problem for survey research. The phenomena encompass nonresponse at both the unit and item level. Unit refers to complete absence of an interview from sampled household whereas answers specific questions in after agrees participate survey. Traditionally, research has treated as two separate problems with different impacts on data quality, statistical treatments adjustments, underlying causes (Beatty & Herrmann, 2002; Groves, 1989; Cialdini Couper, 1992; Presser,...
Journal Article Should I Stay or go: The Effects of Progress Feedback, Promised Task Duration, and Length Questionnaire on Completing Web Surveys Get access Ting Yan, Yan 1Institute for Social Research, University Michigan 2Joint Program in Survey Methodology, Maryland Dr is a Senior Methodologist at NORC the Chicago. Search other works by this author on: Oxford Academic Google Scholar Frederick G. Conrad, Conrad an Associate Research Professor Institute Michigan, Joint Methodology Maryland....