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A New Enhanced Arabic Light Stemmer for IR in Medical Documents
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作者 Ra’ed M.Al-Khatib Taha Zerrouki +2 位作者 Mohammed M.Abu Shquier Amar Balla Asef Al-Khateeb 《Computers, Materials & Continua》 SCIE EI 2021年第7期1255-1269,共15页
This paper introduces a new enhanced Arabic stemming algorithm for solving the information retrieval problem,especially in medical documents.Our proposed algorithm is a light stemming algorithm for extracting stems an... This paper introduces a new enhanced Arabic stemming algorithm for solving the information retrieval problem,especially in medical documents.Our proposed algorithm is a light stemming algorithm for extracting stems and roots from the input data.One of the main challenges facing the light stemming algorithm is cutting off the input word,to extract the initial segments.When initiating the light stemmer with strong initial segments,the final extracting stems and roots will be more accurate.Therefore,a new enhanced segmentation based on deploying the Direct Acyclic Graph(DAG)model is utilized.In addition to extracting the powerful initial segments,the main two procedures(i.e.,stems and roots extraction),should be also reinforced with more efficient operators to improve the final outputs.To validate the proposed enhanced stemmer,four data sets are used.The achieved stems and roots resulted from our proposed light stemmer are compared with the results obtained from five other well-known Arabic light stemmers using the same data sets.This evaluation process proved that the proposed enhanced stemmer outperformed other comparative stemmers. 展开更多
关键词 Machine learning information retrieval systems medical documents stemming algorithms arabic light stemmer natural language processing
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Design and Implementation of Patient Online Guide System
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作者 Nada Mohsen Darwish Mohamed Dong Liang +1 位作者 Wang Lin Sun Guiling 《南开大学学报(自然科学版)》 CAS CSCD 北大核心 2024年第4期37-43,共7页
The design and implementation of an online guide system were presented for patients.The system offers a website that makes it easier for patients,or any ordinary visitor to diagnose their disease by simply uploading t... The design and implementation of an online guide system were presented for patients.The system offers a website that makes it easier for patients,or any ordinary visitor to diagnose their disease by simply uploading their MRI image,the website also assists the patient in determining the doctor they need to see,and finding the nearest hospital or blood bank.To build the website,SQL Server,MAT-LAB,and Adobe Dreamweaver were utilized.The rapid increase in digital images produced in hospitals us-ing medical imaging techniques such as X-Ray,CT scans,MRI,and ultrasound has increased the demand for efficient image retrieval systems.Personal description,and annotation of each image in a large database using text-based indexing(also known as the Metadata approach)is time-consuming,and impractical,making Content-based Image Retrieval(CBIR)a better option.CBIR system proposed returns results based on visual features of the image,such as color,texture,and shape. 展开更多
关键词 CBIR DATABASE information retrieval systems wavelet transform
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Design and Implementation of a Heterogeneous Distributed Database System
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作者 金志权 柳诚飞 +3 位作者 孙钟秀 周晓方 陈佩佩 顾建明 《Journal of Computer Science & Technology》 SCIE EI CSCD 1990年第4期363-373,共11页
This paper introduces a heterogeneous distributed database system called LSZ system, where LSZ is an abbreviation of Li Shizhen, an ancient Chinese medical scientist. LSZ system adopts cluster as distributed database ... This paper introduces a heterogeneous distributed database system called LSZ system, where LSZ is an abbreviation of Li Shizhen, an ancient Chinese medical scientist. LSZ system adopts cluster as distributed database node (or site). Each cluster consists of one or several microcomputers and one server. The paper describes its basic architecture and the prototype implementation, which includes query processing and optimization, transaction manager and data language translation. The system provides a uniform retrieve and update user interface through global relational data language GRDL. 展开更多
关键词 Computer Architecture Database systems RELATIONAL information retrieval systems OPTIMIZATION
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