Signal Processing

The dataset is collected from the xeno-canto website, which is a public website to share bird sounds from around the world . We first collect 15,300 bird sounds from one second to fifteen seconds. Unlike many audio denoising datasets which have manually added artificial noise, our collected bird sounds contain natural noises, including wind, waterfall, rain, etc.

Problems related to ventral hernia are very common, and evaluating them using computational methods can assist in selecting the most appropriate treatment. This study collected data from over 3500 patients from different European countries observed during last 11 years (2012-2022), which were collected by specialists in hernia surgery. The majority of patients underwent standard surgical procedures, with a growing trend towards robotic surgery. This paper focuses on statistically evaluating the treatment methods in relation to  patient age, body mass index (BMI), and the type of repair.

The optical hybrid is mainly used to split and combine the signal beam and the local oscillator beam from two inputs, thereby generating four mixed beams with a relative phase difference of 90°. 90º optical hybrid is suitable for coherent signal demodulation for either homodyne or heterodyne detection. The device accepts the two optical signals (S & L) and generates four output signals: S+L, S-L, S+jL, and S-jL.

The dataset consists of measurements of different stages of degradation in low-voltage contactors used for industrial purposes. The measurements were obtained with fiber Bragg grating (FBG) sensors that detect the dynamic deformation generated in switching under different load conditions and internal components. The posted dataset was preprocessed and separated into two different events. The signal is segmented and reduced from the original measurement (separated into opening and closing). Furthermore, two sets of measurements were obtained.