Estimating the Optimal Number of Clusters in Categorical Data Clustering by Silhouette Coefficient -- An Improved Two-Stage Multi-Person Pose Estimation Model -- A fuzzy AHP-TOPSIS approach for selecting the multimodal freight transportation routes -- Evolution Analysis of Newcomer-Task Network Structure of Enterprise Information System: A Case Study of a Shipbuilding Enterprise -- Online Knowledge Community Governance Based on Blockchain Token Incentives -- The Formation and Effect of Affect in Knowledge Intensive Team: A Dynamic Computational Model -- Evolutionary Analysis of Developer Collaboration Network in Cloud Foundry OSS Community -- A Model of Minority Influence in Preferenced Norm Formation -- A Knowledge Points and Cognitive Verb Labeling Strategy for Test Questions Based on Crowdsourcing Mode -- Evaluation Algorithm for the Importance of Nodes in Directed-Weighted Networks Based on Transfer Capability Matrix -- Opinion dynamics considering social comparison in online social networks -- Research on Dissemination Value of Micro-blog Information and Empirical Study -- Understanding public opinions shift of societal emergencies through microblogging streams -- Time to Liquidation of SMEs: The Predictability of Survival Models.