We describe an efficient framework for Web personalization based on sequential and non-sequential pattern discovery from usage data. Our experimental results performed on real usage data indicate that more restrictive patterns, such as contiguous sequential patterns (e.g., frequent navigational paths) are more suitable for predictive tasks, such as Web prefetching, which involve predicting whic...

----------------------------------------------------------------------ABSTRACT----------------------------------------------------------------------------Clustering is the task of finding natural partitioning within a data set such that data items within the same group are more similar than those within different groups. At present all available clustering techniques for web usage mining are ba...

Small satellites are now capable of performing missions that require accurate attitude determination and control. However, low size, power, and cost requirements limit the types of attitude sensors that can be used on a small craft, making attitude estimation difficult. In particular, star trackers—often the attitude sensors of choice for larger spacecraft—are not practical for small satellites...

The Internet and web applications have increased their popularity in the last few years. This boom has provoked the use of new approaches for web-based applications. These new methodologies try to address some new concerns which have appeared in this field and weren’t in traditional methodologies. One of these concerns is navigation. At the same time, it has been proved that there are some conc...

Web page (see Figure 36.2; b-3) representing the possible navigational targets (Tasks, Reports, and Contacts). However, as the label connected as, represented by the navigational link LI96 is a source link (empty arrow), the login information is showed in the same user’s generated home page (see Figure 36.2; b-3). The following usability metrics can be applied to the Navigational Model in Figur...

XML processing languages can be classified according to whether they extract XML data by paths or pattern matching. In the former category one finds XQuery, in the latter XDuce and CDuce. The strengths of one category correspond to the weaknesses of the other. In this work, we propose to bridge the gap between two of these languages: XQuery and CDuce. To this end, we extend CDuce so as it can b...

During navigation people may adopt three different spatial styles (i.e., Landmark, Route, and Survey). Landmark style (LS) people are able to recall familiar landmarks but cannot combine them with directional information; Route style (RS) people connect landmarks to each other using egocentric information about direction; Survey style (SS) people use a map-like representation of the environment...

Navigational Blocks is a tangible user interface that facilitates retrieval of historical stories in a tourist spot. Orientations, movements, and relative positions of physical Blocks support visitor navigation and exploration in a virtual gallery of information. The goal is to bridge the gap and explore the boundary between the physical environment with a virtual information space. Visitors to...

As prior empirical and conceptual work indicates, success and usability of web information systems is subject to navigational design. Although web information systems are not a new phenomenon and were examined intensively in the past, holistic in-depth investigations of navigational issues seem to be arbitrary rather than theoretically and conceptually founded. In particular, we argue that we a...

Background Spatial disorientation is one of the earliest symptoms in Alzheimer’s disease. Search strategy classification systems to study navigational deficits Alzheimer disease have been developed but aren’t widely available. Hence, we studied strategies 5xFAD murine model and evaluated differences between sexes. Method We spatial reference memory 3-month-, 7-month- 12-month-old female male mi...