In evolutionary linguistics, the Iterated Learning Model (ILM) is often used for simulating the first language acquisition. Our purpose in this paper is to develop an agent-based model for language contact based on ILM. We put a learning agent on each node in the social network. Our experimental result showed that the language exposure rather deteriorates the emergence of local common languages...

Localized WKBJ correction based on Local Cosine Basis (LCB) beamlet propagator is applied in postand pre-stack migration to study its influence on image amplitude. 2D SEG/EAGE salt model is used for demonstration. The results indicate that localized WKBJ correction have some improvement on the image amplitude though not very dramatic for 2D SEG/EAGE salt data with relatively smalloffset acquisi...

The acquisition of syntactic categories is a crucial step in the process of acquiring syntax. At this stage, before a full grammar is available, only surface cues are available to the learner. Previous computational models have demonstrated that local contexts are informative for syntactic categorization. However, local contexts are affected by sentence-level structure. In this paper, we add se...

In this paper we present POEMS a postoperative expert medical system currently under development in Leeds. The knowledge representation scheme using KR, an object oriented system [1], and its relation to this medical domain is described. A diagnostic engine based on KR's constraint propagation mechanism is outlined, and a knowledge acquisition scheme utilizing Active and Passive Learning method...

the study assessed the effects of agricultural practices on biodiversity in olamaboro local government are of kogi state, nigeria. one hundred and fifty (150) farmers (respondents) were sampled using simple random sampling technique from five council wards (30 farmers per council ward). data collected were analyzed using descriptive statistics and logit regression model. results showed that 63%...

The study assessed the effects of agricultural practices on biodiversity in Olamaboro Local Government Are of Kogi State, Nigeria. One hundred and fifty (150) farmers (respondents) were sampled using simple random sampling technique from five council wards (30 farmers per council ward). Data collected were analyzed using descriptive statistics and Logit regression model. Results showed that 63%...

We present an Interactive Constraint Satisfaction model for problems where knowledge is not completely deened at the beginning of the computation , but can be interactively acquired during the computational process. In this case, domains can be partially deened when the constraint satisfaction process starts. Thus, domains are dynamically deened in contrast with classical CSPs where domains are...

Feature extraction is an important part of object model acquisition and object recognition systems. Global features describing properties of whole objects, or local features denoting the constituent parts of objects and their relationships may be used. When a model acquisition or object recognition system requires symbolic input, the features should be represented in symbolic form. Global featu...