Enerji hasatçı ve batarya kısıtlı bir sensör ile en taze veri güncellemelerinin gönderilmesi

Uysal, Elif
Age of Information is a measure of the freshness of status updates in applications where the timeliness of information is crucial. We study an energy harvesting communication system in which status updates are sent through a link with negligible delay. We consider the average of a cost which is a non-decreasing function of the status age and investigate the optimal policy particularly for the scenario where the energy harvesting has an energy buffer with unit capacity.


Scheduling Status Updates to Minimize Age of Information with an Energy Harvesting Sensor
Bacınoğlu, Baran Tan; Uysal, Elif (2017-06-30)
Age of Information is a measure of the freshness of status updates in monitoring applications and update-based systems. We study a real-time sensing scenario with a sensor which is restricted by time-varying energy constraints and battery limitations. The sensor sends updates over a packet erasure channel with no feedback. The problem of finding an age-optimal threshold policy, with the transmission threshold being a function of the energy state and the estimated current age, is formulated. The average age ...
Exploiting information extraction techniques for automatic semantic annotation and retrieval of news videos in Turkish
Küçük, Dilek; Yazıcı, Adnan; Department of Computer Engineering (2011)
Information extraction (IE) is known to be an effective technique for automatic semantic indexing of news texts. In this study, we propose a text-based fully automated system for the semantic annotation and retrieval of news videos in Turkish which exploits several IE techniques on the video texts. The IE techniques employed by the system include named entity recognition, automatic hyperlinking, person entity extraction with coreference resolution, and event extraction. The system utilizes the outputs of th...
Measuring age of information on real-life connections
Beytur, Hasan Burhan; Baghaee, Sajjad; Uysal, Elif (2019-04-01)
Age of Information (AoI) is a relatively new metric to measure freshness of networked application such as real-time monitoring of status updates or control. The AoI metric is discussed in the literature mainly in a theoretical way. In this work, we want to point out the issues related to the measuring AoI-related values, such as synchronization and calculation of the values. We discussed the effect of synchronization error in the measurement and a solution for calculating an estimate of average AoI without ...
Fusion of multimodal information for multimedia information retrieval
Yılmaz, Turgay; Yazıcı, Adnan; Department of Computer Engineering (2014)
An effective retrieval of multimedia data is based on its semantic content. In order to extract the semantic content, the nature of multimedia data should be analyzed carefully and the information contained should be used completely. Multimedia data usually has a complex structure containing multimodal information. Noise in the data, non-universality of any single modality, and performance upper bound of each modality make it hard to rely on a single modality. Thus, multimodal fusion is a practical approach...
New heuristics for performance improvement of ilp-based concept discovery systems
Doğan, Abdullah; Karagöz, Pınar; Mutlu, Alev; Department of Computer Engineering (2015)
A large amount of the valuable data in daily life is stored in relational databases. The accumulation of so much information motivates the need for extracting valuable patterns in relational databases. Background knowledge and a set of target examples that are stored in multiple tables are used to produce hypothesis for ILP-based concept discovery systems. Multiple arguments on these multiple tables end up large search spaces while building the hypothesis that arise computational efficiency problems. In thi...
Citation Formats
B. T. BACINOĞLU and E. Uysal, “Enerji hasatçı ve batarya kısıtlı bir sensör ile en taze veri güncellemelerinin gönderilmesi,” 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46350.