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Temporal TF-IDF: A High Performance Approach for Event Summarization in Twitter
No full textIn recent years, there has been increased interest in real-world event summarization using publicly accessible data made available through social networking services such as Twitter and Facebook. People use these outlets to communicate with others, express their opinion and commentate on a wide variety of real-world events, such as disasters and public disorder. Due to the heterogeneity, the sheer volume of text and the fact that some messages are more informative than others, automatic summarization is a very challenging task. This paper presents three techniques for summarizing microblog documents by selecting the most representative posts for real-world events (clusters). In particular, we tackle the task of multilingual summarization in Twitter. We evaluate the generated summaries by comparing them to both human produced summaries and to the summarization results of similar leading summarization systems. Our results show that our proposed Temporal TF-IDF method outperforms all the other summarization systems for both the English and non-English corpora as they lead to informative summaries
Science of Social Media - Project Launch
No full textCOMP6217 is based around a significant piece of group work - to create a design portfolio for a new social media website/app/tool/extension/platform. Teams work on their design throughout the semester, and keep a design and development blog that will act as a digital portfolio of their work. At the end of the semester they will also be asked to submit an individual reflective summary that will outline their teams objectives and progress, their part in its progress, and a critical analysis of whether or not they were successful. At the end of the course teams will be asked to pitch their ideas to an interdisciplinary Dragon's Den style panel who will expect them to not only have created something that is technical viable, but will also want to see other economic, social, legal and ethical factors taken into consideration.
In this presentation we explain the structure of the group project, what is expected in the blog, brainstorm ideas, and explore some potential ideas to help students understand the scope of the work required. The outcome of the group project does not have to be a fully working piece of software, instead we are looking for a well developed idea that contains enough detail to be convincing to the panel
Organic Reaction Mechanism Learning and Revision: Student Booster Pack
No full textThis is a set of resources which are available for students studying organic chemistry, particularly at AS and A Level in the UK. You will complete a problem set at the appropriate level, and will then mark your own work with reference to 'Talking Mark Schemes', videos produced by expert who talks through the answers to the questions. During the research project which created these resources, we found that >85% of students stated that completing the self-assessment process was beneficial to their understanding of organic reaction mechanisms. Click on the link to the briefing video in the window to the left to get full information on this activity. These activities are based on teaching innovations we have developed for use with Chemistry students here at the University of Southampton, and we would welcome your feedback if you find them useful