This paper discusses the causal explanation capability of QRIOM, a tool aimed at supporting learning of organic chemistry reactions. The development of the tool is based on the hybrid use of Qualitative Reasoning (QR) technique and Qualitative Process Theory (QPT) ontology. Our simulation combines symbolic, qualitative description of relations with quantity analysis to generate causal graphs. T...

This paper introduces and outlines a methodology that may be unfamiliar to some qualitative researchers: Membership Categorisation Analysis (MCA). The first section of the paper explains the basic principles of MCA and why it is a valid method for exploring the power of categorisations in texts and talk. Additionally, it explains why MCA differs from other forms of qualitative data analysis. Th...

Consolidation is inferring the behavioral description of a device by composing the behavioral descriptions of its components, e.g., deriving the qualitative differential equations (QDEs) of a device from those of its components. In previous work, Dormoy and Raiman described the qualitative resolution rule, which is a general rule for deriving QDEs of combinations of components. However, the qua...

Qualitative description of the movement of objects can be very important when there are large quantity of data or incomplete information, such as in positioning technologies and movement of robots. We present a first step in the combination of fuzzy qualitative reasoning and quantitative data obtained by human interaction and external devices as GPS, in order to update and correct the qualitati...

Consolidation is inferring the behavioral description of a device by composing the behavioral descriptions of its components, e.g ., deriving the qualitative differential equations (QDEs) of adevice from those of its components . In previous work, Dormoy and Raiman described the qualitative resolution rule, which is a general rule for deriving QDEs of combinations of components . However, the q...

An entirely analytical derivation shows that Seshadri’s simplified series suffers from the same defect as our original series. Moreover, the quantitative description of the side lobes that comes from this asymptotic analysis is fully consistent with our previous qualitative description of the L2 behavior of our apparently more complicated series. The previous analysis is also extended to the ex...

A number of computational methods for the description of the ligand-receptor interaction that were developed in the past decade are reviewed in this paper. The central two sections introduce the methods that are already established as useful tools for the qualitative and quantitative description of ligand-receptor complexes, either when the detailed atomic structure of the receptor is known or ...

The unstable manifold of the B = 2 sector of the Skyrme model is constructed numerically using the gradient-flow method. Following paths of steepest descent from the B = 2 hedgehog, we apply a collective coordinate description for the motion on the manifold to extract a Hamiltonian, approximately valid for the quantum description of the low-energy nucleon-nucleon interaction. The resulting pote...

A qualitative description of the electronic structure of single-wall carbon nanotubes from a chemical perspective is presented using real-space orbital representations and traditional concepts of aromaticity, orbital symmetry and frontier orbitals. This unusual view of carbon nanotubes allows us to merge the solid-state physics description of band structures with the molecular orbitals framewor...

Based on the logical description of gene regulatory networks developed by R. Thomas, we introduce an enhanced modelling approach that uses timed automata. It yields a refined qualitative description of the dynamics of the system incorporating information not only on ratios of kinetic constants related to synthesis and decay, but also on the time delays occurring in the operations of the system....