Exploratory learning depends on several e-learning technologies to enable students to direct their learning. However, the educational search engines of e-learning platforms are inspired by exploratory learning approach. Thus, their search is characterized by learning and investigation. The purpose of this paper is to explore what is considered to…

The objective of this article is to analyze the searching and indexing techniques of educational search engines' implementation while treating future challenges. Educational search engines could greatly help in the effectiveness of e-learning if used correctly. However, these engines have several gaps which influence the performance of e-learning…

Metadata enables users to find the resources they require, therefore it is an important component of any digital learning object repository. Much work has already been done within the learning technology community to assure metadata quality, focused on the development of metadata standards, specifications and vocabularies and their implementation…