With the aim to manage and retrieve the organizational knowledge, in the last years numerous proposals of models and tools for knowledge management and knowledge representation have arisen. However, most of them store knowledge in a non-structured or semi-structured way, hindering the semantic and automatic processing of this knowledge. In this chapter the authors specify a case-based organizat...

Data mining techniques have taken a critical role in life in numerous domains such as consumer analytics, finance, banking, medicine, biology, and astronomy... Recently, data mining techniques have found their application also in discovering illegal discriminatory treatment on the bases of sensitive attributes such as race, color, religion, nationality, gender, age... In this paper, we propose ...

Oracle’s system for Trec8 was the interMedia Text retrieval engine integrated with the Oracle8i database and SQL query language. interMedia Text supports a novel theme-based document retrieval capability using an extensive lexical knowledge base. Trec8 queries constructed by extracting themes from topic titles and descriptions were manually refined. Queries were simple and intuitive. Oracle’s r...

This paper presents an approach to automatically extract entities and relationships from textual documents. The main goal is to populate a knowledge base that hosts this structured information about domain entities. The extracted entities and their expected relationships are veri ed using two evidence based techniques: classi cation and linking. This last process also enables the linking of our...

This paper presents an approach to automatically extract entities and relationships from textual documents. The main goal is to populate a knowledge base that hosts this structured information about domain entities. The extracted entities and their expected relationships are verified using two evidence based techniques: classification and linking. This last process also enables the linking of o...

Not everybody is able to write SQL (Structured Query Language) queries as they may not be aware of the structure of the database. So there is a need for non-expert users to query relational databases in their natural language. The idea of using natural language instead of SQL, has promoted the development of Natural Language Interface to Database systems (NLIDB). The traditional Information Ret...