An abrupt appearance of a new stimulus, or sudden onset, has several possible perceptual interpretations. The change may reflect an object new to the scene or instead be caused by disocclusion of a pre-existing object. Alternatively, the sudden onset may be interpreted as the morphing of a pre-existing figure (as in "line motion"). Previous work has focused on the morphing percept to the exclus...

Tourism research has reached a mature stage indicated by the rising number of journals and citation patterns inside the tourism field. However, many challenges exist including the irrelevancy of tourism research to practitioners, increasing subscription cost of academic journals, the long delay in publishing research results, and academic institutions’ limited budget. Academic institutions are ...

As knowledge bases move into the landscape of larger ontologies and have terabytes of related data, we must work on optimizing the performance of our tools. We are easily tempted to buy bigger machines or to fill rooms with armies of little ones to address the scalability problem. Yet, careful analysis and evaluation of the characteristics of our data—using metrics—often leads to dramatic impro...

The recent popularity of XML and Web services has lead to a surge in models and platforms for distributed XML data management applications. This work investigates performance issues involved in the deployment of the ActiveXML (AXML) platform for such applications. AXML documents are XML documents, part of which is extensional (present in the document), while part is intensional (specified as ca...

On-line analytical processing (OLAP) has gained its popularity in database industry. With a huge amount of data stored in spatial databases and the introduction of spatial components to many relational or object-relational databases, it is important to study the methods for spatial data warehousing and on-line analytical processing of spatial data. In this paper, we study methods for spatial OL...

Today, network intrusion detection systems (NIDSs) use custom solutions to log historical network flows and support forensic analysis by network administrators. These solutions are expensive, inefficient, and lack flexibility. In this paper, we investigate database support for interactive network forensic analysis. We show that an “out-of-the-box” relational database management system (RDBMS) c...

ABSTRACT This paper is an attempt at connecting the emergence of second order observation in critical philosophy with theory aesthetic autonomy as developed by Early German Romanticism. In outlining genesis autonomous art system from reception philosophy, my intention to show how those apparently overly hermeneutical philosophical developments relate birth a production and reproduction artworks...

On-line analytical processing (OLAP) has gained its popularity in database industry. With a huge amount of data stored in spatial databases and the introduction of spatial components to many relational or object-relational databases, it is important to study the methods for spatial data warehousing and on-line analytical processing of spatial data. This thesis investigates methods for spatial O...

MapReduce has recently emerged as a new paradigm for large-scale data analysis due to its high scalability, finegrained fault tolerance and easy programming model. Since different jobs often share similar work (e.g., several jobs scan the same input file or produce the same map output), there are many opportunities to optimize the performance for a batch of jobs. In this paper, we propose two n...