π–π stacking in model dye hosts

Reaction Γπ → Ππ in a Confined Quark Model

A confined quark model study in a couple of chirally anomalous processes is presented in comparison with effective meson Lagrangian approaches of various kind. The processes considered are π0 → γγ and γ → π+π−π0 (or the equivalent πγ → ππ) for which there is a well-known low energy theorem relating the latter amplitude with the former one by a very simple algebraic relation in the zero energy (...

Entity-Centric Coreference Resolution with Model Stacking

Mention pair models that predict whether or not two mentions are coreferent have historically been very effective for coreference resolution, but do not make use of entity-level information. However, we show that the scores produced by such models can be aggregated to define powerful entity-level features between clusters of mentions. Using these features, we train an entity-centric coreference...

Stacking with Multi-response Model Trees

We empirically evaluate several state-of-the-art methods for constructing ensembles of classifiers with stacking and show that they perform (at best) comparably to selecting the best classifier from the ensemble by cross validation. We then propose a new method for stacking, that uses multi-response model trees at the meta-level, and show that it outperforms existing stacking approaches, as wel...

Simple model of stacking-fault energies.

Heuristic-based Model for Container Stacking Problem

The paper presents a container stacking model that simulates, solves and optimizes the container stacking activity within a fluvial or maritime port. This activity constitutes a real world problem that is omnipresent in logistic and transportation domain. Given container arrivals in a container port terminal, the objective is to assign a slot to each one in a storage area at least cost with res...