The main point of our study was to examine the vocabulary knowledge of pupils in grades 3-6, and in particular the relative reading vocabulary disadvantage of hearing-impaired pupils. The achievements of 394 pupils with normal hearing and 106 pupils with a hearing impairment were examined on two vocabulary assessment tasks: a lexical decision task and a use decision task. The target words in bo...

Simple Knowledge Organization System (SKOS) vocabularies are commonly used to represent lightweight conceptual vocabularies such as taxonomies, classifications and thesauri on the Web of Data. We have analyzed 14 such vocabularies and found most of them to contain structural errors. Our tool, Skosify, can be used to automatically validate SKOS vocabularies and correct many problems, helping to ...

The ability to browse an information space in a structured way by exploiting similarities and dissimilarities between information objects is crucial for knowledge discovery. Knowledge maps use visualizations to gain insights into the structure of large-scale information spaces, but are still far away from being applicable for searching. The paper proposes a use case for enhancing search term re...

As video content on the web continues to expand, it is increasingly important to properly annotate videos for effective search and mining. While the idea of annotating static imagery with keywords is relatively well known, the idea of annotating videos with natural language keywords to enhance search is an important emerging problem with great potential to improve the quality of video search. H...

In this paper we consider the problem of out-of-vocabulary term classification in web forum text from the automotive domain. We develop a set of nine domainand application-specific categories for out-of-vocabulary terms. We then propose a supervised approach to classify out-of-vocabulary terms according to these categories, drawing on features based on word embeddings, and linguistic knowledge ...

BACKGROUND Many deaf individuals are at increased risk for fund-of-information deficits, including deficits in health-related information. Research on health information knowledge, an aspect of health literacy, demonstrates an association between low health literacy and health disparities in many populations. Deaf individuals are at particular risk for low health literacy, but no research has b...

During the development of a project, words used in source code add up to a big vocabulary, which may lead to a divergent word-understanding and wordknowledge between developers. Even the drop out of a single developer may lead to a big loss of knowledge about words and their meaning. By keeping track of the active developers vocabulary one is able to identify and react upon such situations. In ...

In this paper, we show how Semantic Web techniques can help to solve semantic interoperability issues in the cultural heritage domain. In particular, these techniques can enable integrated access to heterogeneous collections by representing their controlled description vocabularies (e.g. thesauri) in a standardized format – Simple Knowledge Organization System (SKOS). We also present existing a...

A difficulty in using knowledge-based systems has been linking them to clinical databases. The challenge is in making a correct mapping from the data in the knowledge base to the data in the database. At Columbia-Presbyterian Medical Center, we have built a suite of tools developed to create queries that address this challenge. The tools were designed to allow users to easily retrieve data from...