Estimating Frequencies from Multiple Source Data
نویسندگان
چکیده
منابع مشابه
Deterministically Estimating Data Stream Frequencies
We consider updates to an n-dimensional frequency vector of a data stream, that is, the vector f is updated coordinate-wise by means of insertions or deletions in any arbitrary order. A fundamental problem in this model is to recall the vector approximately, that is to return an estimate f̂ of f such that ∣f̂i − fi∣ < ∥f∥p, for every i = 1, 2, . . . , n, where is an accuracy parameter and p is th...
متن کاملEstimating Subgraph Frequencies with or without Attributes from Egocentrically Sampled Data
In this paper we show how to efficiently produce unbiased estimates of subgraph frequencies from a probability sample of egocentric networks (i.e., focal nodes, their neighbors, and the induced subgraphs of ties among their neighbors). A key feature of our proposed method that differentiates it from prior methods is the use of egocentric data. Because of this, our method is suitable for estimat...
متن کاملA dynamical systems approach for estimating phase interactions between rhythms of different frequencies from experimental data
Synchronization of neural oscillations as a mechanism of brain function is attracting increasing attention. Neural oscillation is a rhythmic neural activity that can be easily observed by noninvasive electroencephalography (EEG). Neural oscillations show the same frequency and cross-frequency synchronization for various cognitive and perceptual functions. However, it is unclear how this neural ...
متن کاملEstimating Selection Coefficients in Spatially Structured Populations from Time Series Data of Allele Frequencies
Inferring the nature and magnitude of selection is an important problem in many biological contexts. Typically when estimating a selection coefficient for an allele, it is assumed that samples are drawn from a panmictic population and that selection acts uniformly across the population. However, these assumptions are rarely satisfied. Natural populations are almost always structured, and select...
متن کاملEstimating population haplotype frequencies from pooled SNP data using incomplete database information
MOTIVATION Information about haplotype structures gives a more detailed picture of genetic variation between individuals than single-locus analyses. Databases that contain the most frequent haplotypes of certain populations are developing rapidly (e.g. the HapMap database for single-nucleotide polymorphisms in humans). Utilization of such prior information about the prevailing haplotype structu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Psychiatry Information in Brief
سال: 2007
ISSN: 2162-1950
DOI: 10.7191/pib.1016