Abstract Relational extraction plays an important role in the field of natural language processing to predict semantic relationships between entities a sentence. Currently, most models have typically utilized tools capture high-level features with attention mechanism mitigate adverse effects noise sentences for prediction results. However, task relational classification, these mechanisms do not...

image retrieval is an important research field which has received great attention in the last decades. in this paper, we present an approach for the image retrieval based on the combination of text-based and content-based features. for text-based features, keywords and for content-based features, color and texture features have been used. query in this system contains some keywords and an input...

77) in the disciplines of health services research, health care evaluation , policy, health economics, quality improvement, management and clinical research focused on the quality of care and patient safety. For every paper, its keywords play a vital part for dissemination of its findings. These keywords are freely available to all users and get sent to many online sources, from which users und...