% Categories: MMC & Year: 2018 % Encoding: utf-8 @Article{Timmerer2018b, author = {Timmerer, Christian}, journal = {SIGMultimedia Records}, title = {MPEG column: 121st MPEG meeting in Gwangju, Korea}, year = {2018}, issn = {1947-4598}, month = mar, number = {1}, pages = {6:6--6:6}, volume = {10}, address = {New York, NY, USA}, doi = {10.1145/3178422.3178426}, language = {EN}, publisher = {ACM}, url = {http://doi.acm.org/10.1145/3178422.3178426} } @Article{Timmerer2018a, author = {Timmerer, Christian}, journal = {SIGMultimedia Records}, title = {MPEG Column: 120th MPEG Meeting in Macau, China}, year = {2018}, issn = {1947-4598}, month = jan, number = {3}, pages = {4:4--4:4}, volume = {9}, address = {New York, NY, USA}, doi = {10.1145/3210241.3210247}, language = {EN}, publisher = {ACM}, url = {http://doi.acm.org/10.1145/3210241.3210247} } @Article{HH_martina_Dez, author = {Yanmaz, Evsen and Yahyanejad, Saeed and Rinner, Bernhard and Hellwagner, Hermann and Bettstetter, Christian}, journal = {Ad Hoc Networks}, title = {Drone networks: Communications, coordination, and sensing}, year = {2018}, month = {jan}, pages = {1-15}, volume = {68}, abstract = {Small drones are being utilized in monitoring, transport, safety and disaster management, and other domains. Envisioning that drones form autonomous networks incorporated into the air traffic, we describe a high-level architecture for the design of a collaborative aerial system consisting of drones with on-board sensors and embedded processing, coordination, and networking capabilities. We implement a multi-drone system consisting of quadcopters and demonstrate its potential in disaster assistance, search and rescue, and aerial monitoring. Furthermore, we illustrate design challenges and present potential solutions based on the lessons learned so far.}, address = {Amsterdam}, doi = {10.1016/j.adhoc.2017.09.001}, keywords = {Drones, Unmanned aerial vehicle networks, Wireless sensor networks, Vehicular communications, Cooperative aerial imaging, Search and rescue}, language = {EN}, publisher = {Elsevier}, url = {https://www.sciencedirect.com/science/article/pii/S1570870517301671} } @Article{HH_martina, author = {Pohl, Daniela and Bouchachia, Abdelhamid and Hellwagner, Hermann}, journal = {Expert Systems with Applications}, title = {Batch-based active learning: Application to social media data for crisis management}, year = {2018}, month = {mar}, pages = {232-244}, volume = {93}, abstract = {Classification of evolving data streams is a challenging task, which is suitably tackled with online learning approaches. Data is processed instantly requiring the learning machinery to (self-)adapt by adjusting its model. However for high velocity streams, it is usually difficult to obtain labeled samples to train the classification model. Hence, we propose a novel online batch-based active learning algorithm (OBAL) to perform the labeling. OBAL is developed for crisis management applications where data streams are generated by the social media community. OBAL is applied to discriminate relevant from irrelevant social media items. An emergency management user will be interactively queried to label chosen items. OBAL exploits the boundary items for which it is highly uncertain about their class and makes use of two classifiers: k-Nearest Neighbors (kNN) and Support Vector Machine (SVM). OBAL is equipped with a labeling budget and a set of uncertainty strategies to identify the items for labeling. An extensive analysis is carried out to show OBAL’s performance, the sensitivity of its parameters, and the contribution of the individual uncertainty strategies. Two types of datasets are used: synthetic and social media datasets related to crises. The empirical results illustrate that OBAL has a very good discrimination power.}, address = {Amsterdam}, doi = {10.1016/j.eswa.2017.10.026}, language = {EN}, publisher = {Elsevier Ltd.}, url = {http://www.sciencedirect.com/science/article/pii/S095741741730708X} }