Showing 121 - 140 results of 190 for search '"false alarm"', query time: 0.06s Refine Results
  1. 121

    Performance Analysis of Thermodynamic Indices and Atmospheric Stability Parameters in Thunderstorm Prediction: The Case of Samsun by Ahmet Can Kaya, Veli Yavuz

    Published 2024-01-01
    “…Statistical performance tests such as Probability of Detection (POD), False Alarm Ratio (FAR), Miss Rate (MR), Critical Success Index (CIS), Hiedke Skill Score (HSS), and True Skill Score (TSS) were used to measure the success of the indices and parameters in predicting thunderstorm events. …”
    Get full text
    Article
  2. 122

    A Clone Selection Based Real-Valued Negative Selection Algorithm by Ruirui Zhang, Xin Xiao

    Published 2018-01-01
    “…The main contributions lie in (1) introducing the clonal selection algorithm and randomly generating candidate detectors within the stratified limited ranges based on clustering centers of self set; generating big-radius candidate detectors first and making them cover space far from selves, which reduces the number of detectors; then generating small-radius candidate detectors and making them gradually cover boundary space between selves and non-selves, which reduces the number of holes; (2) distinguishing selves and dividing them into outlier selves, boundary selves, and internal selves, which can adapt to the interference of noise data from selves; (3) for anomaly detection, using mature detector set and boundary self set to test at the same time, which can effectively improve the detection rate and reduce the false alarm rate. Theoretical analysis and experimental results show that the algorithm has better time efficiency and detector generation quality according to classic negative selection algorithms.…”
    Get full text
    Article
  3. 123

    Real-Time Warning Model of Highway Engineering Construction Safety Based on Internet of Things by Haoran Song, Hao Yu, Dianliang Xiao, Yuexiang Li

    Published 2021-01-01
    “…The experimental comparison between the real-time early warning model and the traditional early warning model in this paper shows that the accuracy of the early warning model proposed in this paper is improved by nearly 5%, and the false alarm rate is reduced by nearly 4%.…”
    Get full text
    Article
  4. 124

    Cyclic Peak Extraction from a Spatial Likelihood Map for Multi-Array Multi-Target Bearing-Only Localization by Chuanxing Hu, Bo Zhang, Xishan Yang, Zhaokai Zhai, Dai Liu

    Published 2025-01-01
    “…Under conditions that clutter interference and missing of detection in direction-finding, the traditional method will produce false alarm targets and miss some targets. To address this issue, this paper draws on the idea of a spatial likelihood map which calculates the likelihood of target presence at each grid point within the observation area by partitioning the observation area into grids and utilizing bearing data from each array, yielding the distribution of targets in the observation area. …”
    Get full text
    Article
  5. 125

    Anomaly detection solutions: The dynamic loss approach in VAE for manufacturing and IoT environment by Praveen Vijai, Bagavathi Sivakumar P

    Published 2025-03-01
    “…While traditional anomaly detection approaches face limitations such as scalability issues, high false alarm rates, and reliance on skilled expertise, this study proposes a novel approach using a BiLSTM-Variational Autoencoder (BiLSTM-VAE) model with a dynamic loss function. …”
    Get full text
    Article
  6. 126

    A Vision-Based Video Crash Detection Framework for Mixed Traffic Flow Environment Considering Low-Visibility Condition by Chen Wang, Yulu Dai, Wei Zhou, Yifei Geng

    Published 2020-01-01
    “…The results showed that the proposed framework achieved a high detection rate of 92.5%, with relatively low false alarm rate of 7.5%. There are some useful findings: (1) the proposed model outperformed empirical rule-based detection models; (2) image enhancement method can largely improve crash detection performance under low-visibility conditions; (3) the accuracy of object detection (e.g., bounding box prediction) can impact crash detection performance, especially for minor motor-vehicle crashes. …”
    Get full text
    Article
  7. 127

    Performance evaluation of perceptible impulsive noise detection methods based on auditory models by Arda Özdoğru, František Rund, Karel Fliegel

    Published 2025-01-01
    “…Evaluation criteria of the algorithms included the hit rate, false alarm rate, $$A'$$ A ′ , and computational time. …”
    Get full text
    Article
  8. 128

    All-or-none activity as a correlate of object awareness in monkey visual cortex by Anne‑Claire Collet, Roger Koenig‑Robert, Denis Fize, Rufin VanRullen

    Published 2014-01-01
    “…On the other hand, the P2 component was only present when the target was recognized or when a distractor elicited a false alarm, but totally absent otherwise, either when the target was not recognized or when a distractor was correctly rejected, thus being modulated in an all-or-none fashion by image recognition as a target of the task. …”
    Get full text
    Article
  9. 129

    Dual-Polarimetric SAR Measurements to Observe Liquefaction Surface Manifestations by Ferdinando Nunziata, Anna Verlanti, Nicola Angelo Famiglietti, Maurizio Migliaccio, Annamaria Vicari

    Published 2025-01-01
    “…The methodology consists of two steps: first the spatial distributions of soil liquefaction is estimated using a constant false alarm rate method applied to the SPAN metric, namely the total power associated with the measured polarimetric channels, which is ingested into a bitemporal approach to sort out dark areas not genuine. …”
    Get full text
    Article
  10. 130

    Dynamic Nonrecurrent Congestion Event Detection and Tracking Method With DBSCAN on Speed Watersheds by Jing Jin, Yizhou Wang, Anjiang Chen, Branislav Dimitrijevic, Joyoung Lee

    Published 2024-01-01
    “…Imprecise NRC event detection methods can trigger false alarms and repetitive incident alerts for the same congestion event. …”
    Get full text
    Article
  11. 131

    A Two-Stage Method for Screening Pulse RFI in SAR Raw Data Alternating the Use of Time and Frequency Domains by Tingting Wei, Xingwang Hu, Zhengwei Guo, Gaofeng Shu, Yabo Huang, Ning Li

    Published 2025-01-01
    “…Compared with the traditional PRFI screening methods, the proposed approach boasts a remarkable ability to circumvent missed screening and false alarm when screening weak-energy PRFIs. It possesses exceptional sensitivity and accuracy, offering fresh perspectives and innovative solutions to the PRFI screening challenge. …”
    Get full text
    Article
  12. 132

    A novel detection method for warhead fragment targets in optical images under dynamic strong interference environments by Guoyi Zhang, Hongxiang Zhang, Zhihua Shen, Deren Kong, Chenhao Ning, Fei Shang, Xiaohu Zhang

    Published 2025-01-01
    “…Moreover, we provide a specific implementation of this process, which achieves a detection rate close to 100% with an approximate 0% false alarm rate in multiple sets of real target field test data. …”
    Get full text
    Article
  13. 133

    Open Issues in Statistical Forecasting of Solar Proton Events: A Machine Learning Perspective by Mirko Stumpo, Simone Benella, Monica Laurenza, Tommaso Alberti, Giuseppe Consolini, Maria Federica Marcucci

    Published 2021-10-01
    “…Moreover, we find that, by applying a cut‐off on the ≥M2 flares heliolongitude, the False Alarm Rate (FAR) is reduced. The cut‐off is set to E20° where the cumulative distribution of ≥M2 flares associated with SPEs shows a break which reflects the poor magnetic connection between the Earth and eastern hemisphere flares. …”
    Get full text
    Article
  14. 134

    Research on Fire Detection of Cotton Picker Based on Improved Algorithm by Zhai Shi, Fangwei Wu, Changjie Han, Dongdong Song

    Published 2025-01-01
    “…Once experimentally verified, the improved GWO-PSO algorithm achieves a correlation coefficient R of 0.96929, a prediction accuracy rate of 96.10%, and a prediction error rate of only 3.9%, while the system monitors an accurate early warning rate of 96.07%, and the false alarm and omission rates are both less than 5%. …”
    Get full text
    Article
  15. 135

    Evaluation criteria of objects vibration state by parameters of signal characteristic function by I. S. Kudryavtseva, A. P. Naumenko, A. M. Demin

    Published 2019-10-01
    “…The decision-making risk curves were constructed, the probabilities of missing a malfunction and a false alarm were calculated for the selected values of diagnostic signs. …”
    Get full text
    Article
  16. 136

    Hybrid Learning Model for intrusion detection system: A combination of parametric and non-parametric classifiers by C. Rajathi, P. Rukmani

    Published 2025-01-01
    “…The effectiveness was assessed using various metrics, including classification accuracy, precision, recall, F1-Score (F1), Receiver Operating Characteristic (ROC) curve, Detection Rate (DR), and False Alarm Rate (FAR). The proposed HLM achieves a better accuracy rate across different datasets when compared with the existing models. …”
    Get full text
    Article
  17. 137

    Multiscale Performance of Global Blended Satellite Precipitation Products Over Taiwan by Liping Wang, Haonan Chen, Zhe Li

    Published 2025-01-01
    “…The verification skills of SPPs at different precipitation intensity thresholds is analyzed through the probability of detection (POD), false alarm ratio (FAR), frequency bias index (FBI) and Heidke skill score (HSS). …”
    Get full text
    Article
  18. 138

    Effectof Unit Hydrographs and Rainfall Hyetographs on Critical Rainfall Estimates of Flash Flood by Fanzhe Kong, Wei Huang, Zhilin Wang, Xiaomeng Song

    Published 2020-01-01
    “…To obtain critical rainfall (CR) estimates similar to the rainfall value that causes minor basin outlet flooding, and to reduce the flash flood warning missed/false alarm rate, the effect of unit hydrographs (UHs) and rainfall hyetographs on computed threshold rainfall (TR) values was investigated. …”
    Get full text
    Article
  19. 139

    The Impact of Electrophysiological Diversity on Pattern Completion in Lithium Nonresponsive Bipolar Disorder: A Computational Modeling Approach by Abraham Nunes, Selena Singh, Anouar Khayachi, Shani Stern, Thomas Trappenberg, Martin Alda

    Published 2025-01-01
    “…Excitability variance, specifically hyperexcitability, increased the number of spuriously active neurons, increasing false alarm rates and producing pattern completion deficits. …”
    Get full text
    Article
  20. 140

    Enhancing Precipitation Nowcasting Through Dual-Attention RNN: Integrating Satellite Infrared and Radar VIL Data by Hao Wang, Rong Yang, Jianxin He, Qiangyu Zeng, Taisong Xiong, Zhihao Liu, Hongfei Jin

    Published 2025-01-01
    “…Furthermore, our DA-RNN exhibits robust false alarm rates (FAR) for various thresholds, with only slight decreases in the critical success index (CSI) and Heidke skill score (HSS) when increasing the threshold. …”
    Get full text
    Article