THIS IS A PRE-PUBLICATION DRAFT VERSION, INFORMATION CAN CHANGE IN THE FINAL VERSION    Download complete issue 48 - Download the cover   Read this issue in the OJS system     Editorial (pp. 3–4)   1. David Sundgren, Alexander Karlsson (Sweden) Uncertainty Levels of Second-Order Probability (pp. 5–11; abstract)   2. Chaman L. Sabharwal, Jennifer L. Leopold, Douglas McGeehan (USA) Triangle-Triangle Intersection Determination and Classification to Support Qualitative Spatial Reasoning (pp. 13–22; abstract)   3. Irosh Fernando, Frans A. Henskens (Australia) ST Algorithm for Medical Diagnostic Reasoning (pp. 23–29; abstract)   4. Guida Gomes, Henrique Vicente, Joaquim Macedo, Victor Alves, José Neves (Portugal) A Logic Programming Approach for the Conservation of Buildings Based on an Extension of the Eindhoven Classification Model (pp. 31–38; abstract)   5. Juan Carlos Nieves, Helena Lindgren (Sweden) Merging Deductive and Abductive Knowledge Bases: An Argumentation Context Approach (pp. 39–45; abstract)   6. Nibaldo Rodriguez, Lida Barba, Jose Miguel Rubio L. (Chile, Ecuador) Multiscale RBF neural network for forecasting of monthly hake catches off southern Chile (pp. 47–52; abstract)   7. Borja Ponte, David de la Fuente, Raúl Pino, Rafael Rosillo, Isabel Fernández (Spain) Supply Chain Management by means of Simulation (pp. 53–58; abstract)   8. Melanie Neunerdt, Michael Reyer and Rudolf Mathar (Germany) A POS Tagger for Social Media Texts trained on Web Comments (pp. 59–66; abstract)   9. Grigori Sidorov (Mexico) N-gramas sintácticos no-continuos (pp. 67–75; abstract)   10. István Endrédy, Attila Novák (Hungary) More Effective Boilerplate Removal - the GoldMiner Algorithm (pp. 77–81; abstract)    Journal Information and Instructions for Authors (p. 83)