Ensemble regression methods are widely used to improve prediction accuracy by combining multiple models, especially when dealing with continuous numerical targets. However, most ensemble voting regressors use equal weights for each base model’s predictions, which can limit their effectiveness, particularly there is no specific domain knowledge guide the weighting. This uniform weighting approach doesn’t consider that some models may perform better than others on different datasets, leaving...

Small target detection has been widely used in applications that are relevant to everyday life and have many real-time requirements, such as road patrols security surveillance. Although object methods based on deep learning achieved great success recent years, they not effective small detection. In order solve the problem of low recognition rate caused by factors resolution UAV viewpoint images little valid information, this paper proposes an improved algorithm YOLOv5s model, called...

Extracellular matrix is a natural microenvironment pivotal for stem cell survival, as well proliferation, differentiation and metastasis, composed of variety biological molecular complexes secreted by resident cells in tissues organs.

With the continuous development of ecological city construction under concept “ecological civilization”, creation ecologically livable cities has become more and important. Since urban livability involves a wide range social life, establishment index evaluation system can help analyze residents’ quality then optimize control spatial structure to promote high-quality development. This study takes Wuhan, Hubei Province, as an example, establishes comprehensive based on 12 indicators in three...

The comprehensive resource and environment carrying capacity (RECC) evaluation is an important method for measuring the rationality of population, resource, allocation, which scientific guidance research judgment regional economic social development potential optimization national land spatial pattern. This paper constructs a index system RECC under new situation climate policy high-quality development; it analyzes factors influencing RECC, overall level, difference, status by using TOPSIS...

For most autonomous landing based on ground cooperation markers, the design of markers is too simple. These can provide position-related information when UAV in a high position, but low it easily cause to lose its target and result failure due small size marker narrowness camera's field view. To solve above problems, this article focuses precise UAV. An improved which be detected different heights designed, relative position coordinate system established for pose estimation, height-adaptive...

Pulmonary sequestration (PS) is a rare lesion with independent blood supply from an anomalous systemic artery. A timely resection considered as the best treatment for PS. Three-dimensional computed tomography angiography (3D-CTA) has been widely utilized precise thoracic surgery. This study aimed to investigate role of preoperative 3D-CTA and simulation in uniportal video-assisted thoracoscopic surgery (VATS) anatomical lung PS.The data 20 consecutive PS patents undergoing anatomic between...

A novel algorithm, termed a boosted adaptive particle filter (BAPF), for integrated face detection and tracking is proposed. The proposed algorithm based on the synthesis of an filtering AdaBoost algorithm. (APF), new sampling technique, to obtain accurate estimates proposal distribution posterior enable in video sequences. used detect faces input image frames, while APF designed track BAPF employed detection, verification, Experimental results show that provides means robust under various scenarios.

Autonomous safe landing of UAV is an important function in many scenarios such as force and delivery. This paper proposes a method to autonomously select site for vertical take-off (VTOL) based on point cloud, which can minimize combined risks posed during touch down at the chosen site. The most suitable zone selected according terrain complexity. In this paper, (1) fine-grained grid elevation map converted from cloud used calculate potential risk slope, roughness maximum height difference....

WebAssembly is an emerging secure programming language and portable instruction set architecture, has been deployed in diverse security-critical scenarios due to its safety advantages. However, WebAssembly's linear memory still vulnerable buffer overflows the lack of effective protection mechanism, defeating security guarantees. In this paper, we present VMCanary, first framework for protection, by leveraging a canary approach but with aid from virtual machines (VMs). Our key idea that, fact...

The telomere has long been regarded as a dependable biomarker for cellular senescence. lung function can reflect the and status of lungs. As individuals age beyond adulthood, there is gradual decline in function. However, existence associated between leukocyte length (LTL) remains uncertain.

Objective To explore the application of mini-laparoscopy in diagnosis and management nonpalpable undescended testis children.Methods 38 cases impalpabal testes(46 testicular) had been operated by children with cryptorchidism.Results (46 mini-laparoscope.Results After laparoscopic exploration,inguinal probe postoperative pathology,it confirmed that 2 testicular were absent,34 found high inguinal location,10 located intraperitoneal cavity.In addition to absent testicular,the rest performed...

Face recognition in real-world scenarios poses challenges due to diverse image qualities and varying noise levels. To improve the Deep Joint Distribution Optimal Transportation (DeepJDOT) model's performance, we propose a two-step preprocessing strategy involving facial detection cropping. Our goal is achieve highly precise face presence of different environments. We curate dataset 18 Hollywood celebrities with appearances for evaluation. enhance DeepJDOT model, adopt sophisticated neural...

Abstract In the process of industrial automation production and daily life, flow is an important parameter that often needs to be measured controlled. order ensure accurate measurement meter, flowmeter calibrated before production, during use after maintenance. However, most existing calibration methods are complicated in process, there many human interventions. The functions intelligent not fully utilized, unified management requirements for equipment large-scale deployment cannot met. This...