With the growing number of connected online users producing a tremendous amount of unstructured short-texts daily, understanding and mining these data becomes very useful for individuals, governments and companies for identifying the public users' attitudes towards different entities, such as products, services, events, places, organizations and topics. However, analyzing these short-texts using traditional methods becomes a significant challenge due to the shortness and sparsity nature of short-texts. To address such challenges, the literature introduced a broad spectrum of short-texts mining approaches and applications. Hence, this paper provides a comprehensive survey of this spectrum based on a criterion-based research strategy. The different mining techniques and approaches utilized in shorttexts were highlighted along with their related issues and challenges. This paper surveyed a total of 1575 research papers published in the refereed conferences and journals in the area of short-texts mining were surveyed from 2006 until 2017, from which 187 primary studies were included and analyzed to constitute the source of the present paper. After a careful review of these articles, it is obvious that there are research gaps in other languages than English and Chinese, multi-languages, and in specific domain studies.
Our data suggest that topical lidocaine did not reduce the pain associated with the insertion of nCPAP prongs in preterm infants. However, the trends for lower PIPP scores in the lidocaine group and the effect sizes for lidocaine on PIPP scores and salivary cortisol were large enough so that a large-scale randomized clinical trial is warranted to confirm or refute our results. Such a study should compare 2 or more active pain interventions during nCPAP application, rather than evaluating a single intervention versus placebo or no treatment.
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