An efficient retrieval of a relatively small number of relevant cases from a huge case base is a crucial subtask of Case-Based Reasoning (CBR). In this article, we investigate Case Retrieval Nets, a memory model for this task which is applicable in any domain with attribute-based case representations. The main idea is to apply a restricted spreading activation process in the case memory in orde...

Models of automatic priming of word identification can be divided into those based on associative relations (e.g., spreading activation) and others based on semantic similarity (e.g., distributed models). In three experiments, associative relatedness was manipulated by presenting asymmetrically associated word pairs in both their forward and backward directions. Priming was comparable in both d...

We preset a network model for context-based retrieval allowing for integrating domain knowledge into document retrieval. Based on the premise that the results provided by a network model employing spreading activation are equivalent to the results of a vector space model, we create a network representation of a document collection for retrieval. We extended this well explored approach by blendi...

How do people decide whether to try to retrieve an answer to a problem or to compute the answer by some other means? The authors report 2 experiments showing that this decision is based on problem familiarity rather than on retrievability of some answer (correct or incorrect), even when problem familiarization occurred 24 hr earlier. These effects at the level of the individual problem solver a...

In order to offer context-aware and personalized information, intelligent processing techniques are necessary. Different initiatives considering many contexts have been proposed, but users preferences need to be learned to offer contextualized and personalized services, products or information. Therefore, this paper proposes an agent-based architecture for context-aware and personalized event r...

Objective(s) The objective of this study was to evaluate the effect of cannabinoid on cortical spreading depression (CSD) in rat brain. Cannabis has been used for centuries for both symptomatic and prophylactic treatment of different types of headaches including migraine. CSD is believed to be a putative neuronal mechanism underlying migraine aura and subsequent pain. Materials and Methods T...

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We report on the design of a system that enables the user to perform retrieval of items of interest both by browsing an automatically constructed very large hypertext and by spreading activation on the hypertext network itself. It is this second option that is particularly interesting since it enables the user to retrieve items that have not been visited, but that are similar to items flagged a...

This paper presents Nootropia, a self-organising information agent, capable of evaluating documents according to a user’s multiple and changing interests. In Nootropia, a hierarchical term network that takes into account term dependencies is used to represent a user’s multiple topics of interest. Non-linear document evaluation is established on that network based on a directed spreading activat...