This paper concerns a new optimization problem arising in the management of multi-object spectrometer with configurable slit unit. The field view spectrograph is divided into contiguous and parallel spatial bands, each one associated two opposite sliding metal bars that can be positioned to observe astronomical object. Thus several objects analyzed simultaneously within configuration called mas...

With the continuous improvement of deep object detectors via advanced model architectures, imbalance problems in training process have received more attention. It is a common paradigm detection frameworks to perform multi-scale detection. However, each scale treated equally during training. In this paper, we carefully study objective detector We argue that loss level neither important nor indep...

3D multi-object tracking (MOT) has witnessed numerous novel benchmarks and approaches in recent years, especially those under the “tracking-by-detection” paradigm. Despite their progress usefulness, an in-depth analysis of strengths weaknesses is not yet available. In this paper, we summarize current MOT methods into a unified framework by decomposing them four constituent parts: pre-processing...

The eeciency of dynamic dispatch is a major impediment to the adoption of multi-methods in object-oriented languages. In this paper, we propose a simple multi-method dispatch scheme based on compressed dispatch tables. This scheme is applicable to any object-oriented language using a method precedence order that satisses a speciic monotonous property (e.g., as Cecil and Dylan), and guarantees t...

‎In this paper‎, ‎a coherent system consisting of non-identical dependent active components and‎ ‎equipped with non-identical dependent standby components is considered‎. ‎The main object of this study is the random quantity‎ ‎which account the number of surviving standby components when the system‎ ‎is failed‎. ‎We represent the distribution function of the corresponding random variable in ter...