Abstract The OntoLex W3C Community Group has been working for more than three years
on a shared lexicon model for ontologies, called lemon. The lemon model consists of a core …

This paper deals with a new approach to ontology-based QA in which users ask questions in
natural language to knowledge bases of facts extracted from a federation of Web sites and …

In this paper we present ORAKEL, a natural language interface which translates wh-
questions into logical queries and evaluates them with respect to a given knowledge base …

In this paper, we present a framework for representing heterogeneous linguistic resources
and for integrating their content with Semantic Web ontologies. This work, which extends …

In this paper, we present a framework for representing and evaluating integrations between
ontological and linguistic resources, which originates and improves previous research …

In open scenarios, agents willing to cooperate must impact the communication barrier
between them and their unknown partners. If agents are not relying on any agreement about …

In this paper we introduce CODA (Computer-aided Ontology Development Architecture), an
Architecture and a Framework for semiautomatic development of ontologies through …

Ontology Alignment (OA) is a complex, demanding and error-prone task, requiring the
intervention of domain and Semantic Web experts. Automating the alignment process thus …

This paper describes a new approach, called Terminological Bucket Indexing (TBI), for
efficient indexing and retrieval of both nested and super terms using a single method. We …

Word roots with different structures may hold some semantic relation with each other. This is
due to the presence of similar molecular constituents in root structures, which stand for either …