There is significant knowledge captured through annotations on the life sciences Web. In past research, we developed a methodology of support and confidence metrics from association rule mining, to mine the association bridge (of termlinks) between pairs of controlled vocabulary (CV) terms across two ontologies. Our (naive) approach did not exploit the following: implicit knowledge captured via...

Pain may contribute to cognitive decline, which is a common complication in the early postoperative period. We compared the effects of two common pain management techniques, intravenous patient-controlled analgesia (PCA-IV) and patient-controlled epidural analgesia (PCEA), on cognitive functioning in the immediate postoperative period. Patients hospitalized for elective surgery were randomly as...

There are three key components for developing a metadata system: a container structure laying out the key semantic issues of interest and their relationships; an extensible controlled vocabulary providing possible content; and tools to create and manipulate that content. While metadata systems must allow users to enter their own information, the use of a controlled vocabulary both imposes consi...

BACKGROUND Patient-controlled analgesia is used for both labor and postoperative analgesia. OBJECTIVES This study aimed to assess user satisfaction and functionality of two ambulatory, electronic patient controlled analgesia devices, the GemStar pump Hospira Inc., Illinois, USA) and the ambIT Ambulatory Infusion Therapy pump (Sorenson Medical Products, Utah, USA). PATIENTS AND METHODS It wa...

This paper introduces a new grammar notation, called Codeco, designed for controlled natural language (CNL) and predictive editors. Existing grammar frameworks that target either formal or natural languages do not work out particularly well for CNL, especially if they are to be used in predictive editors and if anaphoric references should be resolved in a deterministic way. It is not trivial to...

Clinical text, such as clinical trial eligibility criteria, is largely underused in state-of-the-art medical search engines due to difficulties of accurate parsing. This paper proposes a novel methodology to derive a semantic index for clinical eligibility documents based on a controlled vocabulary of frequent tags, which are automatically mined from the text. We applied this method to eligibil...

Linking the biomedical literature to other data resources is notoriously difficult and requires text mining. Text mining aims to automatically extract facts from literature. Since authors write in natural language, text mining is a great natural language processing challenge, which is far from being solved. We propose an alternative: If authors and editors summarize the main facts in a controll...

We demonstrate AceWiki that is a semantic wiki using the controlled natural language Attempto Controlled English (ACE). The goal is to enable easy creation and modification of ontologies through the web. Texts in ACE can automatically be translated into first-order logic and other languages, for example OWL. Previous evaluation showed that ordinary people are able to use AceWiki without being i...

Attempto Controlled English (ACE) is a controlled natural language specifically constructed to write software specifications. ACE specifications are computer-processable and can be unambiguously translated into a first-order logic language. The current version of ACE deals only with singular phenomena. We discuss how ACE can be extended with plurality. The extension proves to be difficult in th...

Different kinds of controlled natural language (CNL) have been proposed as a front-end for Semantic Web systems, in order to make them more accessible to users with no background in formal notations and methods. This paper investigates whether OWL statements in CNL are indeed easier to understand than in other notations. To this aim, an experiment with 64 participants was conducted that compare...