Better Construction with Factories.

Better Construction with Factories

class Application { List docs; protected abstract new Document(); public void newDocument() { // Handles the File|New menu option doc = new Document(); docs.add(doc); doc.open(); } // ... rest of the class omitted } (a) The abstract Application class class MyApplication extends Application { protected new Document() { return new MyDocumentType(); // A concrete subtype } // ... rest of...

construction of vector fields with positive lyapunov exponents

in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...

Collaborative Research - Better Value for Construction

A Harvard Business School professor Jeffrey Sachs recently announced in the World Economic Forum that Hong Kong has slipped to 13th place from seventh in its macro-economic competitiveness index (Pritchard, 2001). Analysis by the Construction Industry Review Committee (CIRC) also found that the average construction cost for producing high quality high-rise office buildings is some 49% more expe...

Dynamic Ensemble Re-Construction for Better Ranking

Ensemble learning has been shown to be very successful in data mining. However most work on ensemble learning concerns the task of classification. Little work has been done to construct ensembles that aim to improve ranking. In this paper, we propose an approach to re-construct new ensembles based on a given ensemble with the purpose to improve the ranking performance, which is crucial in many ...

Construction—Is there a better way?