One of the major obstacles for the mobile GIS development is the immature in database design. For this consideration, a new mobile data model based on a mobile view of spatio-temporal and attribute model is proposed. A temporal database is designed in physicality for the implementation on conceptual model. It is a proactive approach continuously updating the related spatiotemporal and attribute...

This paper points out a conceptual difficulty in using a variance decomposition to assess the quantitative importance of news shocks. A variance decomposition will attribute to news shocks movements in endogenous variables driven both by news about future exogenous fundamentals that has yet to materialize (what I call “pure news”) as well as movements driven by realized changes in fundamentals ...

While current metamodelling languages are well-suited for the structural definition of abstract syntax and metamodelling platforms like the Eclipse Modelling Framework (EMF) provide various means for the specification of a textual or graphical concrete syntax, techniques for the specification of model semantics are not as matured. Therefore, we propose the application of reference attribute gra...

This study addresses continuing controversies concerning the nature of semantic impairment in early dementia of the Alzheimer type (DAT), and the relationship between conceptual knowledge and picture naming. A series of analyses of fine-grained feature knowledge data show that: (1) distinctive features of concepts were more vulnerable than shared; (2) the amount of attribute knowledge about a c...

The present experiment identified neural regions that represent a class of concepts that are independent of perceptual or sensory attributes. During functional magnetic resonance imaging scanning, participants viewed names of social groups (e.g. Atheists, Evangelicals, and Economists) and performed a one-back similarity judgment according to 1 of 2 dimensions of belief attributes: political ori...

auctions have been as a competitive method of buying and selling valuable or rare items for a long time. single-sided auctions in which participants negotiate on a single attribute (e.g. price) are very popular. double auctions and negotiation on multiple attributes create more advantages compared to single-sided and single-attribute auctions. nonetheless, this adds the complexity of the auctio...

The column-oriented NoSQL (Not Only SQL) model provides for big data the most suitable model to the data warehouse and the structure of multidimensional data as the OLAP cube and allows it to be deployed in the cloud and a high scalability whilst delivering high performance. In the absence of a clear approach which allows the implementation of data warehouses using this model, we propose in thi...

Behavior of geographic objects holds a critical role in spatial databases. This, along with objects’ position and space-varying attributes, form a minimal set of concepts sufficient to capture spatial peculiarities in terms of the object-oriented rational. We present the semantics and the graphical notation of a prototypical object-oriented model for the conceptual design of spatial databases: ...

A number of philosophers of language have proposed that people do not have conceptual access to ‘bare particulars’, or attribute-free individuals (e.g. Wiggins, 1980). Individuals can only be picked out under some sortal, a concept which provides principles of individuation and identity. Many advocates of this view have argued that object is not a genuine sortal concept. I will argue in this pa...

The goal of conceptual clustering is to build a set of embedded classes, which cluster objects based on their similarities. Knowledge organization aims at generating the set of most specific classes: the Generalization Space. It has applications in the field of data mining, knowledge indexation or knowledge acquisition. Efficient algorithms have been proposed for data described in <attribute, v...