In naturally occurring speech and gesture, meaning occurs organized and distributed across the modalities in different ways. The underlying cognitive processes are largely unexplored. We propose a model based on activation spreading within dynamically shaped multimodal memories, in which coordination arises from the interplay of visuo-spatial and linguistically shaped representations under give...

2 The main abbreviations used in this article in addition to DIS are: IR (Information Retrieval), SA (Spreading Activation), and ARP (Active Recommendation Project). Luis Mateus Rocha and Johan Bollen Los Alamos National Laboratory, MS B256 MS B362 Los Alamos, NM 87545, USA E-Mail: [email protected] or † [email protected], [email protected] WWW: http://www.c3.lanl.gov/~rocha , http://www.c3.lanl.go...

During unmoderated discussions it is commonly observed that some people end up having more influence than seems justified by the actual quality of their contributions. In this paper, we propose and illustrate a spreading-activation architecture for modeling such differential influence. In our model, each participant’s level of influence vis-à-vis others in a discussion emerges out of the interp...

The cognitive architecture MicroPsi builds on a framework for simulating agents as neuro-symbolic spreading activation networks. These agents are situated in a simulation environment or fitted with robotic bodies. The current implementation of MicroPsi has been re-implemented from the ground up and is described here.

In this paper, we describe a collaborative filtering approach that uses features of users and items to better represent the problem space and to provide better recommendations to users. Features of the collaborative filtering dataset are found and incorporated into a network representation of the collaborative filtering space where users and items are represented by nodes and where the nodes ar...

Attitudes can be seen as object evaluations stored in memory. Accordingly, attitude structure may be seen as a memory structure with dynamic implications for information processing. In this article, an associative network model for the representation of stored attitudes was assumed, and 2 manifestations of the notion of spreading activation within the confines of such a model were examined. Stu...

Churn prediction has received much attention in the last decade. With the evolution of social networks and social network analysis tools in recent years, the consideration of social ties in churn prediction has proven promising. One possibility is to use energy diffusion models to model the spread of influence through a social network. This paper proposes a novel churn prediction diffusion mode...

This paper deals with the description of a new adaptive filtering system called RELIEFS (for RELevance Information Fuzzy System). The main principles of this system draw their inspiration from cognitive models of information selection. More precisely, our research is based on the analysis of semantic memory models (knowledge access and knowledge organisation) and attentional models (information...

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...

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 the ...