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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Hausdorff dimension, singular vectors and divergent trajectories
豪斯多夫维数 奇异向量 发散轨迹
2023/5/12
In this talk, I will give a survey of results related to the problem of computing Hausdorff dimension of various dynamically defined sets, such as singular vectors. The aim is to try to describe the l...
Trajectories of maternal weight from before pregnancy through postpartum and associations with childhood obesity
obesity etiology pediatric obesity pregnancy weight gain epidemiology
2018/11/20
Background: Prepregnancy body mass index [BMI (in kg/m2)], gestational weight gain, and postpartum weight retention may have distinct effects on the development of child obesity, but their combined ef...
Preconceptional and gestational weight trajectories and risk of delivering a small-for-gestational-age baby in rural Gambia
age-related trajectories gestational weight gain maternal nutrition prepregnancy weight small for gestational age
2018/11/14
Background: Maternal nutritional status is a key determinant of small for gestational age (SGA), but some knowledge gaps remain, particularly regarding the role of the energy balance entering pregnanc...
Linear growth trajectories in Zimbabwean infants
children infants longitudinal malnutrition prenatal stunting
2018/12/19
Background: Undernutrition in early life underlies 45% of child deaths globally. Stunting malnutrition (suboptimal linear growth) also has long-term negative effects on childhood development. Linear g...
THE TRADE-OFF BETWEEN PRIVACY AND GEOGRAPHIC DATA RESOLUTION. A CASE OF GPS TRAJECTORIES COMBINED WITH THE SOCIAL SURVEY RESULTS
GPS trajectories privacy locational privacy
2016/7/8
Trajectory datasets are being generated in great volumes due to high levels of Global Positioning System (GPS) and Location-Based Services (LBS) use. Such data are increasingly being collected for a v...
ANALYSIS OF SPATIO-TEMPORAL TRAFFIC PATTERNS BASED ON PEDESTRIAN TRAJECTORIES
Periodic Event Analysis Walking Path Network Dynamic Prior Map
2016/7/8
For driver assistance and autonomous driving systems, it is essential to predict the behaviour of other traffic participants. Usually, standard filter approaches are used to this end, however, in many...
Some Observations upon “Realistic” Trajectories in Bohmian Quantum Mechanics
quantum mechanics Bohmian quantum mechanics realistic trajectory quantum position mecanica cuantica interpretacion de Bohm trayectoria bohmiana trayectoria realista posicion
2016/6/12
Experimental situations in which we observe quantum effects that deviate from the intuitive expectations of the classical world call for an interdisciplinary discussion, and one fundamental issue to b...
Joint Modeling and Clustering Paired Generalized Longitudinal Trajectories with Application to Cocaine Abuse Treatment Data
Clustering Functional data analysis Exponential family Joint modeling
2016/1/26
In a cocaine dependence treatment study, we have paired binary longitudinal tra-jectories that record the cocaine use patterns of each patient before and after a treat-ment. To better understand the d...
Joint Modeling and Clustering Paired Generalized Longitudinal Trajectories with Application to Cocaine Abuse Treatment Data
Clustering functional data analysis exponential family joint modeling EM algorithm
2016/1/20
In a cocaine dependence treatment study, we have paired binary longitudinal tra-jectories that record the cocaine use patterns of each patient before and after a treat-ment. To better understand the d...
Robot Self-Characterisation of Experience Using Trajectories in Sensory-Motor Phase Space
environmental interaction interaction characterisation informaiton distance factal dimension AIBO robot
2015/8/3
We describe sensorimotor phase-plots constructed using information theoretical methods from raw sensor data as a way for a robotic agent to characterise its interactions and interaction history. Measu...
Exploiting Vestibular Output during Learning Results in Naturally Curved Reaching Trajectories
vestibular system Nico humanoid robot reaching trajectory radial basis function network degrees-of-freedom problem developmental robot
2015/7/30
Teaching a humanoid robot to reach for a visual target is a complex problem in part because of the high dimensionality of the control space. In this paper, we demonstrate a biologically plausible simp...
Tunnel-in-the-Sky Cockpit Display for Complex Remote Sensing Flight Trajectories
Tunnel-in-the-Sky Cockpit Complex Remote Sensing Flight Trajectories
2015/6/29
Three-dimensional flight displays can increase the efficiency of remote sensing flight operations by providing enhanced guidance and situational awareness on straight and curved flight paths. Such a d...
School Attendance: Equities and inequities in growth trajectories of academic performance
School Attendance Equities and inequities
2015/6/2
Much of the pedagogical as well as political tension in the discussion about the effects of education on the development of children has been focused on the importance of the quality of education as d...
Historical Trajectories and Corporate Competences in Wind Energy
Business History Renewale Energy Competitive Advantage Technology Adoption
2015/4/24
This working paper surveys the business history of the global wind energy turbine industry between the late nineteenth century and the present day. It examines the long-term prominence of firms headqu...
Trajectories of Objectively Measured Physical Activity in Free-Living Older Men
OLDER ADULTS PHYSICAL ACTIVITY SEDENTARY BEHAVIOR ACCELEROMETER COHORT STUDY
2017/4/14
Background: The steep decline in physical activity (PA) among the oldest old is not well understood; there is little information about the patterns of change in PA and sedentary behaviour (SB) in olde...