Analysis of Filipino Mood Swings within a Day using Tweets Topics: Analytics as a Service (AaaS) for any Types of Analytics; Analytics, Intelligence and Knowledge Engineering; Big Data Algorithm, Methodology, Business Models and Challenges; Social Science and Implications for Big Data; Software Engineering for Big Data Analytics; User Evaluations and Case Studies In Proceedings of the 4th International Conference on Internet of Things, Big Data and Security IoTBDS - Volume 1, 364-369, 2019 , Heraklion, Crete, Greece