arXiv subjects

Dimitrios Kotzias

Publications and source records attributed to Dimitrios Kotzias.

2 recordsLinked to original sources

arXiv2016

Assessing the Use of Social Media in Massive Open Online Courses

The study explores whether the use of Twitter in Massive Open Online Courses (MOOCs) promotes the interaction among learners. The social network analysis shows that instructors still play a very central role in the social media communication and the communication network between students shrinking over time. The mere use of social media fails to promote learner-learner interaction. More research is needed for understanding learner motivation and how instructional design can help increase their engagement and participation.

cs.CY↗

arXiv2014

Deep Multi-Instance Transfer Learning

We present a new approach for transferring knowledge from groups to individuals that comprise them. We evaluate our method in text, by inferring the ratings of individual sentences using full-review ratings. This approach, which combines ideas from transfer learning, deep learning and multi-instance learning, reduces the need for laborious human labelling of fine-grained data when abundant labels are available at the group level.

cs.LG↗