Importance of Flexible Originality in Evolving Instrumental Resuscitology

Instrumental variables estimation with flexible distributions

Abstract Instrumental variables are often associated with low estimator precision. This paper explores efficiency gains which might be achievable using moment conditions which are nonlinear in the disturbances and are based on flexible parametric families for error distributions. We show that these estimators can achieve the semiparametric efficiency bound when the true error distribution is a ...

Flexible models with evolving structure

A type of flexible models in the form of a neural network (NN) with evolving structure is treated in the paper. We refer to models with amorphous structure as flexible models. There is a close link between different types of flexible models: fuzzy models, fuzzy NN, and general regression model. All of them are proven universal approximators and some of them (Takagi-Sugeno fuzzy model with singl...

Declaration of Originality

Certificate of Originality

Low-density parity-check (LDPC) codes can be applied to many different types of communication systems such as video broadcasting and satellite communications. However, the performance of the codes in practice may deviate a lot from the theoretical limits, achievable only by codes with infinite length. In this thesis, we will conduct a detailed investigation on the performance of short-length LD...

The importance of being flexible.

Although the precise three-dimensional structure of a protein is an essential determinant of its function, it is sometimes desirable that parts of its structure not be too rigid. For example, when induced fit occurs in an antibody-antigen, receptorligand, or enzyme-substrate interaction, the protein and/or its partner must undergo a conformational change; structural flexibility can help minimiz...