BJBN： BERT-JOIN-BiLSTM Networks for Medical Auxiliary Diagnostic

This study proposed a medicine auxiliary diagnosis model based on neural network. The model combines a bidirectional long short-term memory（Bi-LSTM）network and bidirectional encoder representations from transformers (BERT), which can well complete the extraction of local features of Chinese medicine texts. BERT can learn the global information of the text, so use BERT to get the global representation of medical text and then use Bi-LSTM to extract local features. We conducted a large number of comparative experiments on datasets. The results show that the proposed model has significant advantages over the state-of-the-art baseline model. The accuracy of the proposed model is 0.75.

Biometric Recognition of Finger Knuckle Print Based on the Fusion of Global Features and Local Features

Compared with the most traditional fingerprint identification, knuckle print and hand shape are more stable, not easy to abrase, forge, and pilfer; in aspect of image acquisition, the requirement of acquisition equipment and environment are not high; and the noncontact acquisition method also greatly improves the users’ satisfaction; therefore, finger knuckle print and hand shape of single-mode identification system have attracted extensive attention both at home and abroad. A large number of studies show that multibiometric fusion can greatly improve the recognition rate, antiattack, and robustness of the biometric recognition system. A method combining global features and local features was designed for the recognition of finger knuckle print images. On the one hand, principal component analysis (PCA) was used as the global feature for rapid recognition. On the other hand, the local binary pattern (LBP) operator was taken as the local feature in order to extract the texture features that can reflect details. A two-layer serial fusion strategy is proposed in the combination of global and local features. Firstly, the sample library scope was narrowed according to the global matching result. Secondly, the matching result was further determined by fine matching. By combining the fast speed of global coarse matching and the high accuracy of local refined matching, the designed method can improve the recognition rate and the recognition speed.

A Robust Invariant Local Feature Matching Method for Changing Scenes

The precise evaluation of camera position and orientation is a momentous procedure of most machine vision tasks, especially visual localization. Aiming at the shortcomings of local features of dealing with changing scenes and the problem of realizing a robust end-to-end network that worked from feature detection to matching, an invariant local feature matching method for changing scene image pairs is proposed, which is a network that integrates feature detection, descriptor constitution, and feature matching. In the feature point detection and descriptor construction stage, joint training is carried out based on a neural network. In the feature point extraction and descriptor construction stage, joint training is carried out based on a neural network. To obtain local features with solid robustness to viewpoint and illumination changes, the Vector of Locally Aggregated Descriptors based on Neural Network (NetVLAD) module is introduced to compute the degree of correlation of description vectors from one image to another counterpart. Then, to enhance the relationship between relevant local features of image pairs, the attentional graph neural network (AGNN) is introduced, and the Sinkhorn algorithm is used to match them; finally, the local feature matching results between image pairs are output. The experimental results show that, compared with the existed algorithms, the proposed method enhances the robustness of local features of varying sights, performs better in terms of homography estimation, matching precision, and recall, and when meeting the requirements of the visual localization system to the environment, the end-to-end network tasks can be realized.

Resort Architecture in Regional Perceptions

The regional aspirations of resort architecture give specific perspectives on the history of regionalism. The development of the shores of Lake Balaton, the largest lake in Central Europe, was determined by this particular regional aspiration. Iván Kotsis was a defining figure of Hungarian architecture between the world wars, and had a significant impact on the period - not only with his work as an architect, but also as a university professor and a public activist. This paper examines his activity around Lake Balaton on different scales, since it represented a peculiar perspective within the history of regional ideas. The research concludes that Kotsis’ regional perspective focused on resort architecture was an independent conception separated from both modern and local interpretations. Based on his university work and the knowledge transfer resulting from his international relations, he developed an integrated perspective on the region from an academic position. Reflecting on the problems of holiday resorts, he formed an autonomous method with which he experimented, to mediate between the universal modern approach and the local features of the landscape.

A Multi-Classification Sentiment Analysis Model of Chinese Short Text Based on Gated Linear Units and Attention Mechanism

Sentiment analysis of social media texts has become a research hotspot in information processing. Sentiment analysis methods based on the combination of machine learning and sentiment lexicon need to select features. Selected emotional features are often subjective, which can easily lead to overfitted models and poor generalization ability. Sentiment analysis models based on deep learning can automatically extract effective text emotional features, which will greatly improve the accuracy of text sentiment analysis. However, due to the lack of a multi-classification emotional corpus, it cannot accurately express the emotional polarity. Therefore, we propose a multi-classification sentiment analysis model, GLU-RCNN, based on Gated Linear Units and attention mechanism. Our model uses the Gated Linear Units based attention mechanism to integrate the local features extracted by CNN with the semantic features extracted by the LSTM. The local features of short text are extracted and concatenated by using multi-size convolution kernels. At the classification layer, the emotional features extracted by CNN and LSTM are respectively concatenated to express the emotional features of the text. The detailed evaluation on two benchmark datasets shows that the proposed model outperforms state-of-the-art approaches.

LLFE: A Novel Learning Local Features Extraction for UAV Navigation Based on Infrared Aerial Image and Satellite Reference Image Matching

Local features extraction is a crucial technology for image matching navigation of an unmanned aerial vehicle (UAV), where it aims to accurately and robustly match a real-time image and a geo-referenced image to obtain the position update information of the UAV. However, it is a challenging task due to the inconsistent image capture conditions, which will lead to extreme appearance changes, especially the different imaging principle between an infrared image and RGB image. In addition, the sparsity and labeling complexity of existing public datasets hinder the development of learning-based methods in this research area. This paper proposes a novel learning local features extraction method, which uses local features extracted by deep neural network to find the correspondence features on the satellite RGB reference image and real-time infrared image. First, we propose a single convolution neural network that simultaneously extracts dense local features and their corresponding descriptors. This network combines the advantages of a high repeatability local feature detector and high reliability local feature descriptors to match the reference image and real-time image with extreme appearance changes. Second, to make full use of the sparse dataset, an iterative training scheme is proposed to automatically generate the high-quality corresponding features for algorithm training. During the scheme, the dense correspondences are automatically extracted, and the geometric constraints are added to continuously improve the quality of them. With these improvements, the proposed method achieves state-of-the-art performance for infrared aerial (UAV captured) image and satellite reference image, which shows 4–6% performance improvements in precision, recall, and F1-score, compared to the other methods. Moreover, the applied experiment results show its potential and effectiveness on localization for UAVs navigation and trajectory reconstruction application.