**Chapter 1: "Knowledge Extraction from Open Data Repository"**

This chapter analyzes how researchers retrieve data from POD repositories. The increase in the number of affluent online platforms, social media, and collaboratively related web resources has amplified the evolution of socio-technical systems, resulting in domains that demonstrate both the conceptual model of the required system approaches and the collaborative form of their participants. The POD repositories at impressive levels and retrieve the information from query log data to investigate these factors' effects. This investigation aims to maximize the quality of a POD repository from a new perspective. First, we offer a unique query recommender system that can help consumers reduce the length of their querying operations. The goal is to discover methods that will allow users to engage with the open data repository quickly and with fewer requests.

### **Chapter 2: "Open Government Data: Development, Practice, and Challenges"**

This chapter focuses on the principle of open data, emphasizing Open Government Data (OGD). It discusses the context and features of OGD and identifies dangers, barriers, and problems. It also examines the benefits of OGD, as well as perceived risks, obstacles, and challenges.
