Assessing factorial invariance of two-way rating designs using three-way methods

Assessing factorial invariance of two-way rating designs using three-way methods

Assessing the factorial invariance of two-way rating designs such as ratings of concepts on several scales by different groups can be carried out with three-way models such as the Parafac and Tucker models. By their definitions these models are double-metric factorially invariant. The differences between these models lie in their handling of the links between the concept and scale spaces. These...

Nonparametric Tests for the Interaction in Two-way Factorial Designs Using R

An increasing number of R packages include nonparametric tests for the interaction in two-way factorial designs. This paper briefly describes the different methods of testing and reports the resulting p-values of such tests on datasets for four types of designs: between, within, mixed, and pretest-posttest designs. Potential users are advised only to apply tests they are quite familiar with and...

From Two-Way to One-Way Finite Automata - Three Regular Expression-Based Methods

We describe three regular expression-based methods to characterize as a regular language the language defined by a two-way automaton. The construction methods yield relatively simple techniques to directly construct one-way automata that simulate the behavior of two-way automata. The approaches also offer conceptually uncomplicated alternative equivalence proofs of two-way automata and one-way ...

Two way street – complementary methods

Advanced Relaying Methods for One-Way and Two-Way Communication

In wireless communication, relays are devices that receive and forward radio signals. Relays are attractive as they can increase the coverage of cellular networks. Moreover, relays improve the robustness of the wireless radio communication as they create additional signal paths. In this thesis, we propose novel schemes for oneand two-way communication in wireless relay networks. We aim to selec...