With the 'digital library' emerging as a trend in the present era, the information society of today suffers not from the lack but from a surplus of information. Distinguishing relevant from non-relevant information is therefore, one of the main tasks of librarians. The development of information technology in the field of digital libraries has attracted many research efforts during the last years. Many interesting projects have been started, dealing with the various open issues arising in this field addressing the challenges such as metadata selection, preservation, technology obsolescence, and copyright issues, etc.DESIDOC has taken several initiatives in this direction. Building a 'digital library of newspaper clippings' is one such effort in this direction. This articles discusses in detail all the issues related to the development of digital library of newspaper clippings and implementation of 'Greenstone Digital Library' software in developing such collection.

<p>The emergent concept of ‘ Big Data’ has shifted the paradigm from information retrieval to information extraction techniques. The information extraction techniques enables corpus analysis to draw useful interpretations and its possible applications. Selection of appropriate information extraction technique depends upon the type of data being dealt with and its possible applications. In an R&amp;D environment, the published information is considered as an authenticated benchmark to study and analyse the growth pattern in that field of science, medicine, business. A rule based information extraction process, on the selected data extracted from a bibliographic database of published R&amp;D papers is proposed in this paper. Aim of the study is to build up a database on relevant concepts, cleaning of retrieved data and automate the process of information retrieval in the local database. For this purpose, a concept based ‘subject profiles’ in the area of advanced semiconductors as well as the rules for text extraction from metadata retrieved from the bibliographic database was developed. This subset was used as an input to the knowledge domain to support R&amp;D in the area of ‘advanced semiconductor materials and devices’ and provide information services on Intranet. Study found that concept based pattern matching on the datasets downloaded yielded better results as compared to the results by using the controlled vocabulary of the source database .</p>

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