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Many social scientists recognize that quantitative text analysis is a useful research methodology, but its application is still concentrated in documents written in European languages, especially English, and few sub-fields of political science, such as comparative politics and legislative studies. This seems to be due to the absence of flexible and cost-efficient methods that can be used to analyze documents in different domains and languages. Aiming to solve this problem, this paper proposes a semisupervised document scaling technique, called Latent Semantic Scaling (LSS), which can locate documents on various pre-defined dimensions. LSS achieves this by combining user-provided seed words and latent semantic analysis (word embedding). The article demonstrates its flexibility and efficiency in large-scale sentiment analysis of New York Times articles on the economy and Asahi Shimbun articles on politics. These examples show that LSS can produce results comparable to that of the Lexicoder Sentiment Dictionary (LSD) in both English and Japanese with only small sets of sentiment seed words. A new heuristic method that assists LSS users to choose a near-optimal number of singular values to obtain word vectors that best capture differences between documents on target dimensions is also presented.

Human resource (HR) is one of the essential features of business activities. Moreover, the success rate of the business depends upon the people who are directly or indirectly involved with the activities. However, many firms ignore this key aspect of success and primarily target the production. This paper focuses on reviewing the impact of Lean Six Sigma (LSS) on HR practices from the literature arena. The study has reviewed 68 research articles through the adoption of Tranfield et al. (2003) methodology. The methodology consists of three phases: (1) planning the review, (2) conducting the review and (3) reporting the review. From the review, key findings concerning countries, authors and research methodologies were found. Further, the study has highlighted the research gaps found from the literature reviews. It is evident that LSS and HR go along very well and can be used as a strategy for organisational excellence. This paper can serve the readers in understanding the spread of LSS and HR practices in industries before LSS implementation. Moreover, for academicians, this work provides a comprehensive list of papers for research. Further, the study has proposed the managerial implication with the agenda for the future research.