The worker/wrapper transformation is a technique for changing the type of a computation, usually with the aim of improving its performance. It has been used by compiler writers for many years, but the technique is little-known in the wider functional programming community, and has never been formalised. In this article we explain, formalise, and explore the generality of the worker/wrapper tran...

Recent work in machine learning for information extraction has focused on two distinct sub-problems: the conventional problem of filling template slots from natural language text, and the problem of wrapper induction, learning simple extraction procedures (“wrappers”) for highly structured text such as Web pages produced by CGI scripts. For suitably regular domains, existing wrapper induction a...

The paper introduces a feature selection wrapper designed specifically for Echo State Networks. It defines a feature scoring heuristics, applicable to generic subset search algorithms, which allows to reduce the need for model retraining with respect to wrappers in literature. The experimental assessment on real-word noisy sequential data shows that the proposed method can identify a compact se...

Supplementary Methods 6 MAPPING METHOD 6 General theory behind likelihood maximization 7 MLE for expected degrees κ 7 MLE for angular coordinates θ 8 MLE kernels 8 First MLE wrapper 8 Algorithm 1 9 Second MLE wrapper 9 Algorithm 2 10 Parameter estimation and finite size effects 10 Estimating γ 10 Estimating N and k̄ 11 Estimating β 12 DEALING WITH NEW-COMING ASs 12 SENSITIVITY TO MISSING LINKS 1...

System-on-chip is an integrated circuit comprising of numerous functional cores which can be of various types. Testing of such diverse circuit is very complex problem. Test access to digital cores is ensured by core wrapper architectures. The paper presents two novel contributions to core test wrappers: (1) the set of optimization techniques for parallel interface to provide faster test applica...

Modern agent and mediator systems communicate to a multitude of Web information providers to better satisfy the user requests. They use wrappers to extract relevant information from HTML pages and annotate it with user-defined labels. A number of approaches exploit the regularity in page structures to induce instances of wrapper classes. The power of a class is crucial; a more powerful class pe...

Information extraction is the process of recognizing the particular fragments of a document that constitute its core semantic content. However, most previous information extraction systems were not effective for real-world information sources due to difficulties in acquiring and representing useful domain knowledge and in dealing with structural heterogeneity inherent in different sources. In o...

As our reliance on computers increases, so does the need for robust software. Previous studies have shown that many C libraries exhibit robustness problems due to exceptional inputs. This paper describes the HEALERS system that uses an automated approach to increasing the robustness of C libraries without source code access. The system extracts the C type information for a shared library using ...

We investigate an important issue of a meta-algorithm for selecting variables in the framework of microarray data. This wrapper method starts from any classification algorithm and weights each variable (i.e. gene) relative to its efficiency for classification. An optimization procedure is then inferred which exhibits important genes for the studied biological process. Theory and application wit...

The htmlButler project aims at enhancing the usability of visual wrapper technology while preserving versatility. htmlButler will allow, for an untrained user who has only the most basic web knowledge, to visually specify simple but useful wrappers and, for a more tech-savvy user, to visually or otherwise specify more complex wrappers. htmlButler was started 2005/2 and is based on visual wrappi...