Mining Negative Comment Data of Microblog Based on Merge-AP

A new depiction method based on the merge-AP algorithm is proposed to effectively improve the mining accuracy of negative comment data on microblog. In this method, we first employ the AP algorithm to analyze negative comment data on microblog and calculate the similarity value and the similarity matrix of data points by Euclidean distance. Then, we introduce the distance-based merge process to solve the problem of poor clustering effect of the AP algorithm for datasets with the complex clustering structure. Finally, we compare and analyze the performance of K-means, AP, and merge-AP algorithms by collecting the actual microblog data for algorithm evaluation. The results show that the merge-AP algorithm has good adaptability.

Characterizing the Problem of Developers' Assignment for Merging Branches

During the software development process, artifacts are constructed and manipulated by many developers working in parallel. A common practice to manage parallel development is the use of branches in the version control system. Usually, at some point, the merge of these branches may be necessary. This process can combine two independent and eventually long sequences of commits, which may have been performed by different developers. Conflicts resulting from the merge of parallel changes may arise. When these conflicts are not automatically solved by the version control system, the developers in charge of the merge process must act. Normally, the developers' knowledge regarding the changes performed in parallel is usually not taken into consideration when assigning developers to the merge task. With this in mind, the goal of this work is to characterize the problem of developers' assignment for merging branches. To do so, this work analyzed merge profiles of eight software projects and check if the development history is an appropriate source of information for identifying the key participants for collaborative merge. In addition, this work presents a survey on developers about what actions they take when they need to merge branches, and especially when a conflict arises during the merge.

Servant leadership and engagement in a merge process under high uncertainty

Purpose – The purpose of this paper is to aim mainly at further understanding how servant leadership can affect engagement during a merger with high levels of uncertainty through the mediating role of organizational identification and psychological empowerment. In addition, the research aimed at validating the servant leadership survey (SLS) in a new culture and language. Design/methodology/approach – In total, 1,107 respondents from two merging Portuguese companies answered a survey. Structural equation modeling was used to further test the mediation model proposed. Findings – SLS proved to be valid and reliable in the Portuguese context and language. Servant leadership strongly affected work engagement in conditions of high uncertainty. Organizational identification and psychological empowerment acted as mediating variables. Research limitations/implications – Future research could include longitudinal studies, the effect of specific servant leadership dimensions and the distinction between servant leadership and other leadership models during a merger in conditions of high uncertainty. Practical implications – This study extends the applicability of the servant leadership model, and the corresponding SLS in a new national culture and as an effective leadership approach under conditions of high uncertainty, such as in a merge process. Social implications – Multinational corporations can see servant leadership as a valid model that can permeate the whole organizational culture, inducing greater performance and the well-being of the workforce for increased engagement. Given the increasing uncertainty and volatility of the work environment, servant leadership could be particularly useful in such contexts. Originality/value – This study benefits both leadership scholars and practitioners by providing evidence on the value of servant leadership in ensuring workforce engagement in conditions of high uncertainty, as in dynamic merger processes. The fact that the study was conducted right in the middle of the change process is rather unique. Moreover, servant leadership effectiveness is for the first time tested in Portugal, a country typically with a relatively strong power distance culture.

Casual speech elision and tone sandhi in Tianjin trisyllabic sequences

In the Tianjin dialect, casual utterance of familiar trisyllabic sequences often induces deletion of phonological segments so that for a trisyllabic string, the non-final syllables would merge into a single syllable. This elide-and-merge process interacts with the rich Tianjin tone sandhi system to produce rather complicated patterns. In this paper, casual speech elision is shown to fall out straightforwardly from a model that recognizes morae as associated with segments and also as tone-bearing units. Thus, elision of morae also removes tonal features. While this understanding provides a clear description of the patterns, it also reveals an ordering paradox: sandhi applies before elision in some cases, but after elision in others. The paradox is resolved by favoring the order that produces a contour tone for the merged syllable. An explanation for this can be found if one recognizes that Tianjin is prosodically iambic.