We describe a method for incrementally constructing a hierarchical generative model of an ensemble of binary data vectors. The model is composed of stochastic, binary, logistic units. Hidden units are added to the model one at a time with the goal of minimizing the information required to describe the data vectors using the model. In addition to the top-down generative weights that define the m...

canola production is an important alternative for agricultural policy-makers in iran to reduce dependency on the imported vegetable oils. nevertheless, the canola planted area is only increasing at a slow pace, indicating a low willingness-to-accept of farmers. the general aim of this study was to determine the factors influencing the canola adoption in the kermanshah province in western iran. ...

Logistic regression is one of the most widely applied machine learning tools in binary classification problems. Traditionally, inference of logistic models has focused on stepwise regression procedures which determine the predictor variables to be included in the model. Techniques that modify the log-likelihood by adding a continuous penalty function of the parameters have recently been used wh...

A Jacobi polynomial was introduced by Ozeki. It corresponds to the codes over F2. Later, Bannai and Ozeki showed how to construct Jacobi forms with various index using a Jacobi polynomial corresponding to the binary codes. It generalizes Broué-Enguehard map. In this paper, we study Jacobi polynomial which corresponds to the codes over F2f . We show how to construct Jacobi forms with various ind...

We consider logistic regression with arbitrary outliers in the covariate matrix. We propose a new robust logistic regression algorithm, called RoLR, that estimates the parameter through a simple linear programming procedure. We prove that RoLR is robust to a constant fraction of adversarial outliers. To the best of our knowledge, this is the first result on estimating logistic regression model ...

In this paper we prove a special case of the transversal conjecture of Tverberg and Vrećica. We consider the case when the numbers of parts ri in this conjecture are powers of the same prime. We also prove some results on common transversals that generalize the classical nonembeddability theorems. We also prove an analogue of colored Tverberg’s theorem by Živaljević and Vrećica. Instead of mult...

Aquaculture in developing countries faces a lot of challenges that are barely being addressed. With feed taking nearly 70% the total production cost, it becomes imperative to develop means optimizing how research is conducted into development. Feed conversion ratio as measure quality can be used quantify retrospect appropriateness fed livestock, particularly, Clarias gariepinus. From study, bin...

Background. Medullary thyroid cancer is a topical disease that often accompanied by metastases. The danger of this pathology requires timely and adequate surgery. Objective to assess the prognostic value informativeness some clinical indicators with selection most optimal reliable potential factors in development mathematical equation for calculating personal probability detecting metastases me...

We have developed a strategy for the analysis of newly available binary data to improve outcome predictions based on existing data (binary or non-binary). Our strategy involves two modeling approaches for the newly available data, one combining binary covariate selection via LASSO with logistic regression and one based on logic trees. The results of these models are then compared to the results...