Anna Mastora

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This study aims to investigate the query formulation and reformulation patterns such as generalisations, specifications, parallel movements and replacements with synonyms within the search procedure. Results showed that users reformulated their queries by using terms contained in the retrieved results while in the query reformulation process they mainly(More)
The aim of the study is to elaborate on the procedure needed in order to analyze morpho-syntactically the typing-error queries submitted in Greek during the search process. In the context of our analysis a failed query is a query which returned no hits. The analysis showed that failed queries represent 36% of the submitted queries. More specifically, 19.6%(More)
The focus of our study is zero-hit queries in keyword subject searches and the effort of increasing recall in these cases by reformulating and, then, expanding the initial queries using an external source of knowledge, namely a thesaurus. To this end, the objectives of this study are twofold. First, we perform the mapping of query terms to the thesaurus(More)
The purpose of this study was to investigate the search behaviour of users. Undergraduate and postgraduate users from the Department of Archives and Library Sciences, Ionian University, were invited to indicate the way they formulate and reformulate their queries. Students were asked to formulate queries and complete a questionnaire. Responses from the(More)
This study aims at investigating query formulation and reformulation patterns within the search procedure focusing mainly on the semantic aspect of submitted queries. Results identified generalisations, specifications, parallel movements and replacements with synonyms; the parallel movement came first in the users' preferences for reformulating a query.(More)
The vehicle to represent Knowledge Organization Systems (KOSs) in the environment of the Semantic Web and linked data is the Simple Knowledge Organization System (SKOS). SKOS provides a way to assign a URI to each concept, and this URI functions as a surrogate for the concept. This fact makes of main concern the need to clarify the URIs’ ontological(More)
AIM To investigate the association between the occurrences of developmental defects of enamel (DDE), in first permanent molars, and bronchodilators and/or corticosteroid intake for asthma-like episodic treatment at preschool age, in 6-12 year old children. METHODS Children of the case group (n = 70) were followed in the Paediatric Pulmonary Unit and the(More)
The purpose of this study is to examine the Google facets, namely the suggestions found occasionally under the section "<i>Searches related to</i>" on the Google results page. The study focuses on whether they constitute good candidate terms for implementing expansion of queries submitted to databases. The thought behind this is to benefit from the Google(More)
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