Showing 1 - 10 of 57
Persistent link: https://www.econbiz.de/10010353194
We propose a new method to find spatially adaptive smoothing splines. This new method breaks down the interval [0, 1] into p disjoint sub-intervals. Then we define p functional components in [0, 1], which have two importantfeatures. First, the purpose of each of these p components is to estimate...
Persistent link: https://www.econbiz.de/10009429662
This research focuses on developing a crop decision planning model to help farmers make decisions for an upcoming crop year. The decisions consist of which crops to plant, the amount of land to allocate to each crop, when to grow, when to harvest, and when to sell. The objective is to maximize...
Persistent link: https://www.econbiz.de/10009475761
context.First, we study the problem of identifiability of joint distribution of flow volumes in a computer network from …)dependence between flow-volumes. We provide sufficient, sometimes necessary, conditions for the identifiability of the flow volumes …
Persistent link: https://www.econbiz.de/10009476537
This paper has two main contributions. Firstly, we introduce a new approach, the latent instrumental variables (LIV) method, to estimate regression coefficients consistently in a simple linear regression model where regressor-error correlations (endogeneity) are likely to be present. The LIV...
Persistent link: https://www.econbiz.de/10009477430
ZIGAM. We develop an iterative algorithm for model estimation based on the penalized likelihood approach, and derive …
Persistent link: https://www.econbiz.de/10009466022
principles related to the expectation maximization (EM) algorithm and bootstrap methods. We formulate the criteria for three …
Persistent link: https://www.econbiz.de/10009466074
Discovering the preferences and the behaviour of consumers is a key challenge in mar- keting. Information about such topics can be gathered through surveys in which the respondents must assign a score to a number of items. In this article we suggest a strat- egy to analyze such data and achieve...
Persistent link: https://www.econbiz.de/10009467124
minorization-maximization (MM) algorithm for non-linear optimization with positivity constraints for model fitting. This algorithm …
Persistent link: https://www.econbiz.de/10009471472
EM algorithm is used for inference in the proposed model. Data from a longitudinal study of human immunodeficiency virus …
Persistent link: https://www.econbiz.de/10009476551