We review and extend some statistical tools that have proved useful for analyzing functional data. Functional data analysis primarily is designed for the analysis of random trajectories and infinite-dimensional data, and there exists a need for the development of adequate statistical estimation and inference techniques. While this field is in flux, some methods have proven useful. These include...

The methodological integration of the temporal dimension in databases requires primitives that allow rigorous and progressive specification of this dimension since the conceptual and organizational levels. For this goal, we propose concepts and graphic formalisms, in accordance with the abstractions of the tow levels of the entity-relationship model. These concepts allow the expression of requi...

Metamodels are used to define languages, code generation and they serve as data structures for metamodel-centric software systems. In software engineering, these metamodels are crafted, evolved and extended, e.g., by further quality dimensions or structural features. However, an ad-hoc modeling approach does not properly support metamodel reuse by extension or composition. Nor does it enforce a...

Extensibility is a vital property of modern applications. An extension component is downloaded from Internet and loaded into an application. However, an extension component may be malicious. Thus there is a risk of the application being illegally accessed. To protect the application from malicious components, this paper proposes a multi-protection page table: a mechanism for providing protectio...

This paper presents an extension to the fixed-effect Logit for panel-data discrete-choice models, where the error component structure is multiplicative (individual effects multiplied by time effects). In linear models with such an error-component structure as investigated by Ahn, Lee and Schmidt (2001), usual fixed-effect estimators are generally inconsistent. We propose a conditional Logit est...

We review and extend some statistical tools that have proved useful for analysing functional data. Functional data analysis primarily is designed for the analysis of random trajectories and infinite-dimensional data, and there exists a need for the development of adequate statistical estimation and inference techniques. While this field is in flux, some methods have proven useful. These include...

Software components provide essential means to structure and organize software effectively. However, frequently, required component abstractions are not available in a programming language or system, or are not adequately combinable with each other. Invasive software composition (ISC) is a general approach to software composition that unifies component-like abstractions such as templates, aspec...

A previous study showed that 1 mm of distal femoral resection restored knee extension 4.5°. We determined the relationship with a more accurate measurement technique. Twenty-six subjects treated with total knee arthroplasty were studied. Digital photographs of the extended knee with and without 1.5 and 3.0 mm thick augments placed between the femoral component and distal femur were analyzed, an...

Building and evolving Grid applications is complex. Component-based development has emerged as an effective approach to building flexible systems, but there is little experience in applying this approach to Grid programming. This paper presents our experience with reengineering a high performance numerical solver to become a component-based Grid application. The adopted component model is an ex...

Mamassian and de Montalembert (2010) have proposed a simple model of the vertical-horizontal illusion. This model identified two components, an anisotropy which results in horizontal lines being perceived approximately 6% shorter than verticals and a bisection component which results in a bisected line being perceived approximately 16% shorter. We have shown that this bisection component confou...