Most existing methods realize 3D instance segmentation by extending those models used for object detection or semantic segmentation. However, these non-straightforward suffer from two drawbacks: 1) Imprecise bounding boxes unsatisfactory predictions limit the performance of overall framework. 2) Existing method requires a time-consuming intermediate step aggregation. To address issues, this pap...

In this paper, Black Scholes’s pricing model was developed to study American option on future contracts of Brent oil. The practical tests of the model show that market priced option contracts as future contracts less than what model did, which mostly represent option contracts with price rather than without price. Moreover, it suggests call option rather than put option. Using t hypothesis test...

With the continuous development of network technology, an intrusion detection system needs to face efficiency and storage requirement when dealing with large data. A reasonable way alleviating this problem is instance selection, which can reduce space improve by selecting representative instances. An not only in its class but also different classes. This representativeness reflects importance i...

Referring segmentation aims to generate a mask for the target instance indicated by natural language expression. There are typically two kinds of existing methods: one-stage methods that directly perform on fused vision and features; two-stage first utilize an model proposal then select one these instances via matching them with features. In this work, we propose novel framework simultaneously ...

In this work, we present SeqFormer for video instance segmentation. follows the principle of vision transformer that models relationships among frames. Nevertheless, observe a stand-alone query suffices capturing time sequence instances in video, but attention mechanisms shall be done with each frame independently. To achieve this, locates an and aggregates temporal information to learn powerfu...

Much of the nation has experienced steep declines in housing prices in recent years. In Manhattan, however, apartment sales prices did not fall as sharply. A study of price-rent ratios in the New York City borough concludes that, while apartment rents are driven by supply and demand forces, apartment sales prices are driven in part by speculative factors, and they sometimes rise or fall to leve...