Showing 3,961 - 3,980 results of 11,103 for search 'features problems', query time: 0.11s Refine Results
  1. 3961

    THEORETICAL ANALYSIS OF DEPRECIATION IN MUNICIPALITIES (GNOSIOLOGY, ONTOLOGY AND EPISTEMOLOGY) by D. Velikov

    Published 2019-10-01
    “…The aim of the publication is to analyze depreciation in municipalities and to propose a synthesis of properties and a summary of common features, trends and laws. The ontological nature of depreciation in accounting science presents the main problems solved by accounting for depreciation. …”
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  2. 3962

    MODERN ARCHITECTURE BOARD INFORMATION AND CONTROL SYSTEMS OF HEAVY VEHICLES by A. Z. Asanov

    Published 2017-06-01
    “…The paper deals with the problems of information and control systems design for robotic heavy trucks control. …”
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    Article
  3. 3963

    THE MATTER OF DISABILITY IN THE LIGHT OF ENLIGHTENMENT IDEAS IN EUROPE OF 17–18 CENTURIES by Nazar Malaniy

    Published 2019-06-01
    “…The dominant core is the systematization of the achievements of the Enlightenment about the problems of people with visual, hearing and speech impairments. …”
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  4. 3964

    Risk assessment of autonomous vehicle based on six-dimensional semantic space by Yanan CHEN, Ang LI, Dan WU

    Published 2024-01-01
    “…To address the problems of inadequate extraction of risk elements and low robustness of risk scenario assessment in autonomous vehicles, a risk assessment framework based on six-dimensional semantic space was proposed, which included risk element extraction based on six-dimensional semantic space and risk scenario assessment based on knowledge graph.Formerly, the semantic space was constructed with RGB and IR data mapped, and rich features were extracted using inter-modal correlations for explicit and potential risk elements.Subsequently, risk elements were distilled into a knowledge graph by semantic role annotation and entity fusion, and an inference method was designed by combining node completion and risk level function for accurate risk assessment.Simulations show that the proposed method surpasses current MSMatch and iSQRT-COV-Net in accuracy, false/missed alarm rate, and processing time.…”
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  5. 3965

    Flight delay stacking ensemble prediction model for severe weather by SUN Yue, DING Jianli

    Published 2025-03-01
    “…Combining flight data and weather data features, multiple heterogeneous classifiers such as LightGBM and XGBoost were used as base learners, and SVM was used as the primary learner. …”
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  6. 3966
  7. 3967

    Relation extraction based on CNN and Bi-LSTM by Xiaobin ZHANG, Fucai CHEN, Ruiyang HUANG

    Published 2018-09-01
    “…Relation extraction aims to identify the entities in the Web text and extract the implicit relationships between entities in the text.Studies have shown that deep neural networks are feasible for relation extraction tasks and are superior to traditional methods.Most of the current relation extraction methods apply convolutional neural network (CNN) and long short-term memory neural network (LSTM) methods.However,CNN just considers the correlation between consecutive words and ignores the correlation between discontinuous words.On the other side,although LSTM takes correlation between long-distance words into account,the extraction features are not sufficiently extracted.In order to solve these problems,a relation extraction method that combining CNN and LSTM was proposed.three methods were used to carry out the experiments,and confirmed the effectiveness of these methods,which had some improvement in F1 score.…”
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  8. 3968

    A Comparison of Updating Frequency Between Web of Science and Current Contents Connect by Nancy J. Butkovich, Helen F. Smith, Claire E. Hoffman

    Published 2004-03-01
    “…Each database has unique features. Web of Science has superior title coverage, while Current Contents Connect updates faster about 25% of the time. …”
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    Article
  9. 3969

    Application of Complex Fuzzy Relational Compositions to Medical Diagnosis by Muhammad Gulzar, Samina Ashraf, Etienne E. Kerre

    Published 2024-11-01
    “…The capability of complex fuzzy sets plays a valuable role in resolving many real-life problems. In this paper, we present the compositions of complex fuzzy relations by using the idea of implication operators and max-product compositions of complex fuzzy relations and illustrate these compositions with concrete examples. …”
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  10. 3970

    QUALITY OF LIFE IN PATIENTS WITH BACK PAIN by N. E. Komleva, V. F. Spirin

    Published 2013-05-01
    “…Back pain is an actual problem of modern medicine. In 82-95 % of cases back pain is caused by dorsopathies. …”
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    Article
  11. 3971

    Ordering Acyclic Connected Structures of Trees Having Greatest Degree-Based Invariants by S. Kanwal, M.K. Siddiqui, E. Bonyah, T. S. Shaikh, I. Irshad, S. Khalid

    Published 2022-01-01
    “…Since many techniques depending in vertex similarity and edge features were put forward to rule out many well-known link prediction challenges, many problems are still there just because of unique formulation characteristics of sparse networks. …”
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    Article
  12. 3972

    Roberts-SC syndrome, a rare syndrome and cleft palate repair by Murthy Jyotsna, Dewan Madhu, Hussain Altaf

    Published 2008-07-01
    “…Our patient, a young child of five years having Roberts-SC, was successfully operated for cleft palate under general anesthesia. The main features of the syndrome and the technical problems of anesthesia and surgery are discussed in this report…”
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    Article
  13. 3973

    Financial and Investment Ensuring Innovation Activities of the Oil and Gas Industry in Russia by D. N. Semkova

    Published 2022-08-01
    “…The problem of the implementation of PPP, which is imperfect state mechanisms that allow investors to guarantee the invested funds, and also revealed the problem of venture capital insufficient financing in the oil and gas industry, due to the need to develop and exploit hard-to-recover oil reserves, which involves large-scale investment. …”
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  14. 3974

    Inter-domain routing security mechanism for crossing autonomous system alliance by Ling-jing KONG, Hua-xin ZENG, Jun DOU, Yao LI

    Published 2014-10-01
    “…Through studying and analyzing SE-BGP (security enhanced BGP),it was found that it couldn’t validate the cross-alliance AS (autonomous system) and defense the self-launched active attack.To solve the security problems,two-layer cross-alliance hierarchical structure CAHS (cross-alliance hierarchical structure) was designed.Based on CAHS,using the idea of passport visa and the features of AdHASH (additive hash),a cross-alliance BGP security mechanism SCA-BGP (secure crossing alliance for BGP) was proposed.The mechanism has higher security,which is able to effectively validate the identities and behavior authorization of the cross-alliance AS as well as the message carried by them.The experiment results show that SCA-BGP can effectively reduce the certificate scale and extra time overhead to get better scalability and convergence performance.…”
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  15. 3975

    Asperger's disorder and Williams syndrome: a case report by Ayse Kilinçaslan, Canan Tanidir, Mustafa Deniz Tutkunkardaş, Nahit Motavalli Mukaddes

    Published 2011-06-01
    “…The presence of autistic features in individuals with WS is a controversial issue. …”
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  16. 3976

    Container traffic: East African case by V. S. Golubeva, N. V. Shcherbinin

    Published 2022-04-01
    “…The article reveals the historical features of foreign trade and its transport support in the East African region. …”
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  17. 3977
  18. 3978
  19. 3979

    Fusion of auto encoders and multi-modal data based video recommendation method by Qiuyang GU, Chunhua JU, Gongxing WU

    Published 2021-02-01
    “…Nowadays, the commonly used linear structure video recommendation methods have the problems of non-personalized recommendation results and low accuracy, so it is extremely urgent to develop high-precision personalized video recommendation method.A video recommendation method based on the fusion of autoencoders and multi-modal data was presented.This method fused two data including text and vision for video recommendation.To be specific, the method proposed firstly used bag of words and TF-IDF methods to describe text data, and then fused the obtained features with deep convolutional descriptors extracted from visual data, so that each video document could get a multi-modal descriptors, and constructed low-dimensional sparse representation by autoencoders.Experiments were performed on the proposed model by using three real data sets.The result shows that compared with the single-modal recommendation method, the recommendation results of the proposed method are significantly improved, and the performance is better than the reference method.…”
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  20. 3980

    AAT model based channel estimation for mmWave massive MIMO systems by Shujuan YU, Rong LIU, Yun ZHANG, Na XIE, Liya HUANG

    Published 2024-03-01
    “…To solve the problems of temporal correlation and susceptibility to noise in millimeter wave massive MIMO channels, which result in decreased channel estimation accuracy, a novel channel estimation method based on an improved temporal convolutional network was proposed.The channel matrices obtained from simulation were feed into the system as two-dimensional image data.The temporal correlation was utilized for feature fusion and an attention in attention network was constructed to enhance the system’s ability to extract deep channel features.Then, AAN was integrated into the temporal convolutional network for training.Finally, the system outputted a denoised two-dimensional image, namely, the channel estimation matrix.Simulation results demonstrate that the proposed method not only exhibits good performance and complexity compared to conventional channel estimation methods but also maintains robustness when the test scenario changes.…”
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