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Artículos de revistas sobre el tema "Value anomaly"

Autor: Grafiati

Publicado: 10 de marzo de 2023

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1

Ilahude, Delyuzar. "MAGNETIC ANOMALY PATTERNS USING TREND SURFACE ANALYSIS APPLICATION (TSA) ON MARINE GEOLOGY MAPPING IN THE BALIKPAPAN WATERS." BULLETIN OF THE MARINE GEOLOGY 27, no. 1 (2016): 19. http://dx.doi.org/10.32693/bomg.27.1.2012.42.

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The application of Trend Surface Analysis (TSA) method an geological and geophysical research in map sheets 1813-1814, Balikpapan Waters and its surrounding, shows the significant value of residual anomaly. The magnetic disseverance of regional and total anomaly value obtained the negative anomaly between -50 nT and -350 nT and positive anomaly between +50 nT and +400 nT. The contour of total and regional anomaly shows the magnetic properties of rocks which characterizes the geological arrangements of the research areas. Residual anomaly yielded from the 2nd order value of regional anomaly mig

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2

Ilahude, Delyuzar, and Beben Rachmat. "POLA ANOMALI MAGNET LOKAL DARI APLIKASI TREND SURFACE ANALYSIS (TSA) PADA PEMETAAN GEOLOGI KELAUTAN BERSISTEM DI PERAIRAN SELAT MALAKA SUMATERA UTARA." JURNAL GEOLOGI KELAUTAN 9, no. 2 (2016): 109. http://dx.doi.org/10.32693/jgk.9.2.2011.204.

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Analisis intensitas magnet dari penerapan metode TSA orde ke 2 menunjukkan nilai anomali lokal yang cukup signifikan dari pemisahan nilai anomali magnet total di perairan Selat Malaka. Kontur anomali lokal yang dihasilkan diduga berkaitan dengan pola struktur geologi busur belakang Sumatera Utara.   Kata kunci : anomali lokal, metode TSA    Analysis of magnetic intensity using 2nd orde of the TSA method shows a significant value of local anomaly from the separation of total magnetic anomaly value in the Malaka Strait waters. Contour of the local anomaly resulted i

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3

Muhajirin, Muhajirin, Nazli Ismail, and Bukhari Bukhari. "The Computation of Residual and Regional Anomaly of Gravity Method Data By Polynomial Filter Using Microsoft Excel." Journal of Aceh Physics Society 9, no. 2 (2020): 37–41. http://dx.doi.org/10.24815/jacps.v9i2.15745.

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Eksplorasi metode gravitasi umumnya dilakukan untuk mencari objek di bawah permukaan yang dangkal sehingga perlu dilakukan pemisahan anomali residual dan regional dari anomali Bouguer lengkap. Perhitungan anomali residual biasanya menggunakan software khusus untuk pengolahan data geofisika yang berlisensi atau algoritma dengan bahasa pemrograman, sedangkan program Microsoft Excel pada PC dan notebook biasa digunakan untuk perhitungan polinomial pada pengolahan data statistik. Penelitian ini memperkenalkan cara menghitung anomali residual menggunakan Microsoft Excel dengan filter polinomial. Ha

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4

Dax, Achiya. "The Smallest Singular Value Anomaly and the Condition Number Anomaly." Axioms 11, no. 3 (2022): 99. http://dx.doi.org/10.3390/axioms11030099.

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Let A be an arbitrary matrix in which the number of rows, m, is considerably larger than the number of columns, n. Let the submatrix Ai,i=1,…,m, be composed of the first i rows of A. Let βi denote the smallest singular value of Ai, and let ki denote the condition number of Ai. In this paper, we examine the behavior of the sequences β1,…,βm, and k1,…,km. The behavior of the smallest singular values sequence is somewhat surprising. The first part of this sequence, β1,…,βn, is descending, while the second part, βn,…,βm, is ascending. This phenomenon is called “the smallest singular value anomaly”

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5

Mu’awanah, Frida Rosidatul, Bambang Priadi, Widodo Widodo, I. Gde Sukadana, and Rian Andriansyah. "Mobilitas Uranium pada Endapan Sedimen Sungai Aktif di Daerah Mamuju, Sulawesi Barat." EKSPLORIUM 39, no. 2 (2019): 95. http://dx.doi.org/10.17146/eksplorium.2018.39.2.4953.

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ABSTRAK Mamuju merupakan daerah yang memiliki nilai laju dosis radiasi (radioaktifitas) tinggi. Daerah penelitian terdiri dari 6 sektor yaitu Sektor Ahu, Orobatu, Takandeang, Botteng, Pangasaan, dan Taan. Variasi batuan pada daerah penelitian tidak mencerminkan distribusi uranium, sehingga diperlukan metode geokimia untuk mengetahui distribusi uranium pada sistem drainase. Penelitian ini bertujuan untuk memberikan gambaran mobilitas dan distribusi uranium pada sistem drainase dengan menggunakan sampel sedimen sungai aktif. Analisis mobilitas uranium menggunakan persen labil yang didapatkan dar

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6

Hasibuan, Jamaludin, Asdiati Berutu, Halimahtun Sakdiah, and Rahmatsyah Rahmatsyah. "Studi Penentuan Anomali Situs Purbakala di Tapanuli Tengah Dengan Metode Geomagnetik." Wahana Fisika 2, no. 1 (2017): 1. http://dx.doi.org/10.17509/wafi.v2i1.7040.

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Penelitian penentuan anomali magnetik situs arkeologi di Tapanuli Tengah dengan metode geomagnetik telah dilakukan untuk mengetahui adanya penampang anomali magnetik di lokasi Lobu Tua. Metode pengukuran Geomagnet menggunakan tipe PPM (Proton Precession Magnetometer) Elsec 770, pengambilan data dilakukan secara acak dengan jumlah titik yang diperoleh 51 titik pengukuran, pengolahan data menggunakan surfer 11 untuk mendapatkan peta kontur dan Mag2DC for windows. Hasil penelitian menunjukkan bahwa penyebaran struktur pelapis Lobu Tua menggunakan metode geomagnet menyebar secara vertikal dan hori

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7

Kaindeh, Gloria R., Seni H. Tongkukut, Gerald H. Tamuntuan, et al. "Investigasi Anomali TEC Ionosfer Berkaitan Dengan Gempa Bumi Jailolo 15 Nopember 2019 Menggunakan Metode 2DPCA." JURNAL ILMIAH SAINS 20, no. 2 (2020): 128. http://dx.doi.org/10.35799/jis.20.2.2020.30073.

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Penelitian ini berfokus pada upaya menginvestigasi anomali Total Electron Content (TEC) ionosfer berkaitan dengan gempa bumi Jailolo yang terjadi pada tanggal 15 November 2019 pukul 01:17 Waktu Indonesia Timur (WIT) dengan menggunakan metode Two Dimensional Principal Component Analysis (2DPCA). Anomali TEC yang teridentifikasi oleh metode 2DPCA digunakan untuk menentukan prekusor dari gempa bumi Jailolo. Citra Global Ionosphere Maps (GIM) TEC selang tanggal 9-15 Nopember 2019 dianalisis dan dikonversi menjadi citra nilai Eigen menggunakan program Matlab_2DPCA. Berdasarkan citra nilai Eigen dit

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8

Kang, Minjung, and Young-Tae Yoo. "Investor perception of fair value evaluation: focusing on financial instruments." Investment Management and Financial Innovations 16, no. 1 (2019): 203–14. http://dx.doi.org/10.21511/imfi.16(1).2019.16.

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This study analyzed capital market investors’ recognition of the predictability of fair value-based valuation. It was examined if market investors overvalue the predictive value of fair value by comparing that value with that measured in accounting performance. The results reveal that investors are likely to overvalue fair value more than predictive values reflected in accounting performance. In particular, the results show that investors can gain abnormal returns through the market anomaly due to the functional fixation that investors cannot distinguish between unrealized profits and realized

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Rahman, Fathu, Taufik Edy Sutanto, and Nina Fitriyati. "Web Traffic Anomaly Detection using Stacked Long Short-Term Memory." InPrime: Indonesian Journal of Pure and Applied Mathematics 3, no. 2 (2021): 112–21. http://dx.doi.org/10.15408/inprime.v3i2.21879.

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AbstractAn example of anomaly detection is detecting behavioral deviations in internet use. This behavior can be seen from web traffic, which is the amount of data sent and received by people who visit websites. In this study, anomaly detection was carried out using stacked Long Short-Term Memory (LSTM). First, stacked LSTM is used to create forecasting models using training data. Then the error value generated from the prediction on test data is used to perform anomaly detection. We conduct hyperparameter optimization on sliding window parameter. Sliding window is a sub-sequential data of tim

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10

Shaw, James R. "Magidor on anomaly and truth-value gaps." Inquiry 59, no. 5 (2016): 513–28. http://dx.doi.org/10.1080/0020174x.2016.1184841.

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11

MADLAZIM, MADLAZIM, and Nur Ika Dwi Lestari. "ANALISIS SEISMISITAS DAN POTENSI BAHAYA BENCANA SEISMIK PULAU SUMATERA BERDASARKAN DATA GEMPA 1970-2020." Inovasi Fisika Indonesia 11, no. 2 (2022): 1–11. http://dx.doi.org/10.26740/ifi.v11n02.p1-11.

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Abstrak  Seismisitas Sumatera dan potensi bencana gempa tektonik dapat dipelajari melalui analisis parameter -value, -value, dan anomali -value. Nilai merefleksikan level seismisitas, nilai menunjukkan level stres batuan geologi bawah permukaan, dan anomali nilai bisa menjadi prekursor gempa besar. Ketiga parameter tersebut secara akurat diperoleh dengan memanfaatkan statistik frekuensi-magnitudo (FMD) gempa dari katalog USGS antara 1970-2020 dengan magnitudo antara 4,0 9,5 dan kedalaman mencapai 640 km. Kurva FMD menjadi basis penerapan hukum Gutenberg-Richter melalui pendekatan maximum

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12

Fitria, Muslimatul, and Tjipto Prastowo. "SEISMISITAS JAWA TIMUR DAN POTENSI BAHAYA BENCANA SEISMIK TERKAIT." Inovasi Fisika Indonesia 11, no. 1 (2022): 17–27. http://dx.doi.org/10.26740/ifi.v11n1.p17-27.

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Abstrak Seismisitas Jawa Timur dan potensi bencana gempa tektonik terkait dapat dipelajari melalui analisis parameter seismik: -value, -value, dan anomali -value. Nilai merefleksikan level seismisitas, nilai menunjukkan level stres batuan bawah permukaan, dan anomali nilai menjadi prekursor gempa besar. Ketiga parameter tersebut secara akurat diperoleh dengan memanfaatkan data frekuensi-magnitudo (FMD) dari katalog USGS antara 1973-2020. Kurva FMD menjadi basis penerapan hukum Gutenberg-Richter melalui pendekatan maximum likelihood untuk data gempa tektonik dengan magnitudo antara 3,1 7,

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13

Setiawan, Ade, and Bagus Sapto Mulyatno. "IDENTIFIKASI BAWAH PERMUKAAN LAPANGAN MINYAK“HUF” SUMATERA SELATAN UNTUK MENDELINIASI STRUKTUR CEKUNGAN HIDROKARBON BERDASARKAN DATA GAYABERAT." Jurnal Geofisika Eksplorasi 4, no. 1 (2020): 19–32. http://dx.doi.org/10.23960/jge.v4i1.4.

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Oil field research in regional Banyuasin “HUF” , South Sumatra have been done by the gravity data with objective of knowing fault structure based on analysis of hydrocarbon SVD and knows hollow structure based on the 3D model of the Bouguer Anomaly and Residual Anomaly. Study areas had Bouguer Anomaly between 13 mgal up to 33 mgal to the interval 1 mgal, where the value of Bouguer Anomaly high have a range value 26 mgal up to 33 mgal which is in the direction of west. While the low value of Bouguer Anomaly have a range value 13 mgal to 20 mgal that is in the east. To knew the existence of stru

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14

Tobing, Alfha Abrianto L., I. Ketut Sukarasa, and Mahmud Yusuf. "Analysis of gravity anomaly and seismicity in Bali region." International journal of physical sciences and engineering 5, no. 3 (2021): 34–43. http://dx.doi.org/10.53730/ijpse.v5n3.1723.

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This study aims to determine the value of the gravity anomaly in the Bali region, identify the fault structure in the Bali region using gravity interpretation and analyze the relationship between gravity anomaly and seismicity in the Bali region. The data used is secondary data, namely satellite gravity anomaly data obtained from the topex website and earthquake data obtained from the Indonesian Agency for Meteorological, Climatological, and Geophysics (BMKG) catalog. Data processing in this study was done using gravity and Second Vertical Derivative (SVD) methods. We used Surfer15 software, O

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15

Desai, Hemang, Shivaram Rajgopal, and Mohan Venkatachalam. "Value-Glamour and Accruals Mispricing: One Anomaly or Two?" Accounting Review 79, no. 2 (2004): 355–85. http://dx.doi.org/10.2308/accr.2004.79.2.355.

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We investigate whether the accruals anomaly is a manifestation of the glamour stock phenomenon documented in the finance literature. Value (glamour) stocks, characterized by low (high) past sales growth, high (low) book-to-market (B/M), high (low) earnings-to-price (E/P), and high (low) cash flow-to-price (C/P), are known to earn positive (negative) future abnormal returns. Note that “C” or cash flow is operationalized in the finance literature as earnings adjusted for depreciation. Sloan (1996) shows that firms with low (high) total accruals earn positive (negative) future abnormal returns. W

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16

Sutaji, Hadi Imam, Abdul Wahid, and Ali Warsito. "PEMETAAN ZONA POTENSI TAMBANG MANGAN DAERAH NAIP KABUPATAN TIMOR TENGAH SELATAN DENGAN METODE GEOMAGNETIK." Jurnal Fisika : Fisika Sains dan Aplikasinya 5, no. 1 (2020): 30–36. http://dx.doi.org/10.35508/fisa.v5i1.1533.

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Abstrak  Telah dipemetakan zona potensi tambang mangan daerah Naip Kabupatan Timor Tengah Selatan menggunakan metode geomagnetik. Tujuan penelitian ini adalah mengetahui struktur perlapisan dan pola sebaran batuan bawah permukaan yang diduga mengandung mangan. Hasil penelitian diinterpretasikan secara kualitatif dan kuantitatif. Interpretasi kualitatif menunjukkan anomali rendah bernilai antara -10 sampai < 50 nT sebagian besar berada pada bagian selatan dan anomali tinggi yaitu 50 sampai 220 nT, umumnya terdapat di bagian utara lokasi penelitian. Anomali rendah diinterpretasika

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17

Vignotto, Edoardo, and Sebastian Engelke. "Extreme value theory for anomaly detection – the GPD classifier." Extremes 23, no. 4 (2020): 501–20. http://dx.doi.org/10.1007/s10687-020-00393-0.

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Abstract Classification tasks usually assume that all possible classes are present during the training phase. This is restrictive if the algorithm is used over a long time and possibly encounters samples from unknown new classes. It is therefore fundamental to develop algorithms able to distinguish between normal and abnormal test data. In the last few years, extreme value theory has become an important tool in multivariate statistics and machine learning. The recently introduced extreme value machine, a classifier motivated by extreme value theory, addresses this problem and achieves competit

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18

Sihombing, Roy Bryanson, and Rustadi Rustadi. "PEMODELAN DAN ANALISA STRUKTUR BAWAH PERMUKAAN DAERAH PROSPEK PANASBUMI KEPAHIANG BERDASARKAN METODE GAYABERAT." Jurnal Geofisika Eksplorasi 4, no. 2 (2020): 47–61. http://dx.doi.org/10.23960/jge.v4i2.14.

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Research has been conducted in Kepahiang area using gravity data with the aim of identify faults based on analysis of the Second Vertical Derivative (SVD) and interpreting structure sub-surface of the based on 3D inverse modelling from Bouguer anomaly and residual anomaly. The research area have an Bouguer anomaly between 38 mGal - 74 mGal, where the high Bouguer anomaly value has a value range of 63,2 mGal - 74 mGal located in the southwest direction of the research area. Whereas the low Bouguer anomaly value has a range of values 38 mGal - 47 mGal located in the north of the research area. T

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Abdelrahman, El‐Sayed Mohamed, and Sharafeldin Mahmoud Sharafeldin. "A least‐squares approach to depth determination from self‐potential anomalies caused by horizontal cylinders and spheres." GEOPHYSICS 62, no. 1 (1997): 44–48. http://dx.doi.org/10.1190/1.1444143.

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We have developed a least‐squares approach to depth determination from self‐potential anomalies caused by horizontal cylinders and spheres. By defining the zero‐anomaly distance and the anomaly value at the origin on the profile, the problem of depth determination from self‐potential data has been transformed into finding a solution to a nonlinear equation. Procedures are also formulated to estimate the electric dipole moment and the polarization angle. The error in the depth parameter estimation introduced by data errors was also studied through imposing 1 to 10% errors in the zero‐anomaly di

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20

Garcia, Maria Teresa Medeiros, and Ricardo António Abreu Oliveira. "Value versus growth in PIIGS stock markets." Journal of Economic Studies 45, no. 5 (2018): 956–78. http://dx.doi.org/10.1108/jes-06-2017-0160.

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Purpose The purpose of this paper is to construct and evaluate value and growth portfolios in Portugal, Italy, Ireland, Greece and Spain, which are commonly known as the EU PIIGS, from 2003 to 2015. Previous research evidence suggests that stocks trading at a lower price relative to their fundamentals (value stocks) tend to outperform stocks that trade at higher prices (growth stocks) in the long run. Although this market anomaly has been studied immensely worldwide, especially for the US stock market, there is no clear evidence whether such an assertion is applicable in less-renowned countrie

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21

Cheng, Wei Dong, Tian Yang Wang, Wei Gang Wen, Heng Wang, and Jian Yong Li. "Anomaly Detection for Equipment Condition via Frequency Spectrum Entropy." Advanced Materials Research 433-440 (January 2012): 3753–58. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.3753.

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Some of the critical and practical issues regarding the problem of condition monitoring of mobile equipment have been discussed, and an anomaly detection method without priori knowledge has been proposed. The method involves setting amplitude benchmark via spectrum amplitude in normal condition and obtaining the maximum entropy value in abnormal condition. The condition identification is achieved through estimating the amount of anomaly information in spectrum, and a measure of anomaly condition is given by the anomaly degree derived from entropy value dividing the maximum value. The sensitivi

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22

Crépey, Stéphane, Noureddine Lehdili, Nisrine Madhar, and Maud Thomas. "Anomaly Detection in Financial Time Series by Principal Component Analysis and Neural Networks." Algorithms 15, no. 10 (2022): 385. http://dx.doi.org/10.3390/a15100385.

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A major concern when dealing with financial time series involving a wide variety of market risk factors is the presence of anomalies. These induce a miscalibration of the models used to quantify and manage risk, resulting in potential erroneous risk measures. We propose an approach that aims to improve anomaly detection in financial time series, overcoming most of the inherent difficulties. Valuable features are extracted from the time series by compressing and reconstructing the data through principal component analysis. We then define an anomaly score using a feedforward neural network. A ti

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Jiang, Chao, Shengze Chen, Zhijing Zhang, and Rui Li. "Energy Meter Patch Resistance and Welding Spot Anomaly Detection Method Based on Machine Vision." Journal of Physics: Conference Series 2428, no. 1 (2023): 012045. http://dx.doi.org/10.1088/1742-6596/2428/1/012045.

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Abstract Based on the problems, such as the difficulty of detecting and obtaining evidence of patch resistance replacement and welding spot anomaly in the current field of meter anomaly detection, a patch resistance and welding spot anomaly detection algorithm is proposed based on machine vision. The resistance anomaly detection algorithm combines the K-D tree and Ransac to complete the high-efficiency energy meter registration. It detects the suspected resistance abnormal area through the difference shadow method and then judges the resistance abnormal situation according to the resistance va

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Kim, Donghyun, Gian Antariksa, Melia Putri Handayani, Sangbong Lee, and Jihwan Lee. "Explainable Anomaly Detection Framework for Maritime Main Engine Sensor Data." Sensors 21, no. 15 (2021): 5200. http://dx.doi.org/10.3390/s21155200.

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In this study, we proposed a data-driven approach to the condition monitoring of the marine engine. Although several unsupervised methods in the maritime industry have existed, the common limitation was the interpretation of the anomaly; they do not explain why the model classifies specific data instances as an anomaly. This study combines explainable AI techniques with anomaly detection algorithm to overcome the limitation above. As an explainable AI method, this study adopts Shapley Additive exPlanations (SHAP), which is theoretically solid and compatible with any kind of machine learning al

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Vanhoeyveld, Jellis, David Martens, and Bruno Peeters. "Value-added tax fraud detection with scalable anomaly detection techniques." Applied Soft Computing 86 (January 2020): 105895. http://dx.doi.org/10.1016/j.asoc.2019.105895.

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Morgan, Margery, Helen Jenkins, and David Tucker. "Spontaneous fetal losses: Added value for a congenital anomaly register." European Journal of Medical Genetics 61, no. 9 (2018): 570. http://dx.doi.org/10.1016/j.ejmg.2018.06.064.

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Crespo, M. Francisco Rivas, T. Hasegawa, Y. Hasegawa, and Y. Tsuchiya. "Diagnostic value of ethylenediaminetetraacetic acid infusion in partial DiGeorge anomaly." European Journal of Pediatrics 153, no. 10 (1994): 779. http://dx.doi.org/10.1007/bf01954502.

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Kapoor, Aditya. "Re: Rheumatic mitral stenosis with Ebstein anomaly of tricuspid value." International Journal of Cardiology 54, no. 1 (1996): 93. http://dx.doi.org/10.1016/0167-5273(96)02566-1.

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Burns, Richard, Gayle Erwin, Frank Messina, and Lance Nail. "Value creation in bundling utility mergers: A corporate focus anomaly." Journal of Energy Finance & Development 3, no. 2 (1998): 185–92. http://dx.doi.org/10.1016/s1085-7443(99)80074-x.

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Idé, Tsuyoshi, Amit Dhurandhar, Jiří Navrátil, Moninder Singh, and Naoki Abe. "Anomaly Attribution with Likelihood Compensation." Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 5 (2021): 4131–38. http://dx.doi.org/10.1609/aaai.v35i5.16535.

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This paper addresses the task of explaining anomalous predictions of a black-box regression model. When using a black-box model, such as one to predict building energy consumption from many sensor measurements, we often have a situation where some observed samples may significantly deviate from their prediction. It may be due to a sub-optimal black-box model, or simply because those samples are outliers. In either case, one would ideally want to compute a responsibility score indicative of the extent to which an input variable is responsible for the anomalous output. In this work, we formalize

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ARDALAN, F., H. ARFAEI, and N. SADOOGHI. "ON THE ANOMALIES AND SCHWINGER TERMS IN NONCOMMUTATIVE GAUGE THEORIES." International Journal of Modern Physics A 21, no. 19n20 (2006): 4161–83. http://dx.doi.org/10.1142/s0217751x06031363.

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Invariant (nonplanar) anomaly of noncommutative QED is reexamined in this paper. It is found that just as in ordinary gauge theory UV regularization is needed to discover anomalies, in noncommutative case, in addition, an IR regularization is also required to exhibit the existence of invariant anomaly. Thus resolving the controversy in the value of invariant anomaly, an expression for the unintegrated anomaly is found. Schwinger terms of the current algebra of the theory are derived.

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Lee, Jun-keun, and Yong-shik Kim. "The Effects of Value-Glamour Anomaly, Intrinsic Value, and Discretionary Accruals on Future Stock Returns." Accounting Information Review 38, no. 3 (2020): 27–53. http://dx.doi.org/10.29189/kaiaair.38.3.02.

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Rosa, Sri Listia, Siti Mariyam Shamsuddin, and Evizal Evizal. "An Immune Based Patient Anomaly Detection using RFID Technology." Computer Engineering and Applications Journal 2, no. 1 (2013): 121–42. http://dx.doi.org/10.18495/comengapp.v2i1.14.

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Detecting of anomalies patients data are important to gives early alert to hospital, in this paper will explore on anomalies patient data detecting and processing using artificial computer intelligent system. Artificial Immune System (AIS) is an intelligent computational technique refers to human immunology system and has been used in many areas such as computer system, pattern recognition, stock market trading, etc. In this case, real value negative selection algorithm (RNSA) of artificial immune system used for detecting anomalies patient body parameters such as temperature. Patient data fro

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Basuki, Rajab, Nanang Dwi Ardi, and Mimin Iryanti. "Analisis Sebaran Mineral Logam Pada Sedimentasi Batuan Di Daerah Kertajadi, Cidaun, Kabupaten Cianjur, Jawa Barat Menggunakan Metoda Geomagnet." Wahana Fisika 2, no. 1 (2017): 37. http://dx.doi.org/10.17509/wafi.v2i1.7019.

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Cidaun merupakan salah satu daerah pesisir pantai selatan yang terletak pada Kabupaten Cinajur Provinsi Jawa Barat. Salah satu kelebihan dari daerah pesisir pantai selatan Pulau Jawa adalah terdapat banyaknya mineral logam penghasil besi yang tersebar luas di sepanjang pesisir pantai. Oleh karena itu dilakukanlah eksplorasi untuk memetakan sebaran mineral logam yang ada di daerah Cidaun. Dalam melakukan eksplorasi mineral logam dibutuhkan suatu metode yang paling efektif yaitu eksplorasi geofisika dengan menggunakan metode geomagnet. Proses pengolahan data pada metode geomagnet dilakukan denga

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Li, Gang, Zeyu Yang, Honglin Wan, and Min Li. "Anomaly-PTG: A Time Series Data-Anomaly-Detection Transformer Framework in Multiple Scenarios." Electronics 11, no. 23 (2022): 3955. http://dx.doi.org/10.3390/electronics11233955.

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In actual scenarios, industrial and cloud computing platforms usually need to monitor equipment and traffic anomalies through multivariable time series data. However, the existing anomaly detection methods can not capture the long-distance temporal correlations of data and the potential relationships between features simultaneously, and only have high detection accuracy for specific time sequence anomaly detection scenarios without good generalization ability. This paper proposes a time-series anomaly-detection framework for multiple scenarios, Anomaly-PTG (anomaly parallel transformer GRU), g

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Luthfiya, Maya, and Thaqibul Fikri Niyartama. "Modeling Folding Zone in Kedungsari Compassionate Area Kulon Progo Yogyakarta with Gravity Method." Proceeding International Conference on Science and Engineering 1 (October 31, 2017): 19–22. http://dx.doi.org/10.14421/icse.v1.263.

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This study aims to determine the condition of subsurface by doing interpretation quantitatively. Quantitative interpretation is done by modeling to determine the shape and boundary of the anomaly. The gravity data reduction is done up to Complete Bouguer Anomaly (CBA) value is obtained. The complete Bouguer anomaly is brought to horizontal plane reduction and separation of local and regional anomalies using the upward continuation method. 2.5 modelling has been made from local anomaly data to illustrate the subsurface condition of the research area more clearly. The result shows R1 density val

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Hamidy, Ahmad Nor, Ashila Juan Fortuna, Imelda Mar'ata Sholih, et al. "ANALISIS STRUKTUR BAWAH PERMUKAAN GUNUNG IJEN BANYUWANGI." JURNAL PEMBELAJARAN FISIKA 11, no. 3 (2022): 93. http://dx.doi.org/10.19184/jpf.v11i3.33323.

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Analysis of the subsurface structure of Mount Ijen, Banyuwangi was carried out based on anomaly data obtained from satellite image data. This research was conducted with the aim of identifying the subsurface structures around the research site. In this study, what is determined is the complete Bouguer anomaly (ABL), regional and residual anomalies based on the ABL, and their inversion modeling. The results of the representation of underground structures based on residual anomalies obtained from complete and regional Bouguer anomaly data. The complete bouguer anomaly values obtained in the Moun

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Pellokila, Aryanti Irnawati, Jehunias L. Tanesib, and Bernandus Bernandus. "IDENTIFIKASI KEBERADAAN BASEMENT DI BAWAH CEKUNGAN TIMOR BERDASARKAN DATA ANOMALI GRAVITASI DENGAN PEMODELAN TIGA DIMENSI." Jurnal Fisika : Fisika Sains dan Aplikasinya 3, no. 1 (2018): 1–11. http://dx.doi.org/10.35508/fisa.v3i1.588.

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ABSTRAK Metode Gravitasi adalah metode yang digunakan untuk mencari perbedaan nilai gravitasi dari satu titik ke titik yang lain di suatu tempat yang disebabkan oleh distribusi massa yang terdapat di bawah permukaan daerah penelitian. Telah dilakukan identifikasi keberadaan basement terhadap data anomali Bouguer lengkap di Cekungan Timor dengan posisi geografis 9.40 LS – 10.40 LS dan 123.50 BT – 125.40 BT. Identifikasi keberadaan basement di bawah Cekungan Timor dilakukan berdasarkan data anomali medan gravitasi. Data anomali medan gravitasi yang digunakan dalam penelitian adalah hasil p

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Chiang, C. Catherine, Yilun Shi, and Lin Zhao. "Another R&D Anomaly?" Journal of Applied Business Research (JABR) 30, no. 4 (2014): 1211. http://dx.doi.org/10.19030/jabr.v30i4.8666.

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In this paper, we investigate the relation between stock returns and R&D spending under different market conditions. Our empirical evidence suggests that investors response to R&D activities varies according to stock market status. Following the conventional definitions of markets, we first categorize the market into four different states: slightly up (up by 0-20%), bull (up by more than 20%), slightly down (down by 0-20%), and bear (down by more than 20%). Using firms in high-tech industries from 1992 to 2009 as our sample, we show that investors value R&D spending consistently po

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Wahyuni, Silvia, and Marzuki Marzuki. "Analisis Anomali Temperatur Permukaan Tanah dan Awan Gempa Berkaitan dengan Gempa Palu 2018." Jurnal Fisika Unand 9, no. 3 (2020): 352–59. http://dx.doi.org/10.25077/jfu.9.3.352-359.2020.

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Anomali temperatur permukaan tanah dan awan gempa yang berkaitan gempa bumi yang terjadi di Palu 28 September 2018 telah diteliti menggunakan data temperatur permukaan tanah dan permukaan air laut dari Moderate Resolution Imaging Spectroradiometer (MODIS) dan data awan dari satelit Multifunction Transport Satellite (MTSAT). Data temperatur udara dari European Centre for Medium Range Weather Forecasts (EMCWF) juga digunakan untuk memastikan bahwa anomali temperatur bukan disebabkan oleh aktivitas cuaca. Anomali temperature permukaan tanah diamati selama 5 tahun dari 2014-2018 dan awan gempa dia

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Noor, Rudy Hendrawan, and Ishaq Ishaq. "INTERPRETASI DATA GEOMAGNETIK UNTUK MENDETEKSI SEBARAN BATUAN MENGANDUNG MINERAL LOGAM DI AWANG BANGKAL, KABUPATEN BANJAR." AL-ULUM: JURNAL SAINS DAN TEKNOLOGI 7, no. 2 (2022): 64. http://dx.doi.org/10.31602/ajst.v7i2.6044.

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Research has been carried out to detect the presence and distribution of rocks containing metallic minerals. Almost every object used every day contains metal elements, so the presence of metal is very important to support every human activity. The presence of metal minerals in nature is generally quite a lot, but the types of metallic minerals vary. The geomagnetic method is a geophysical method that can detect subsurface rocks containing metallic minerals based on the difference in the magnetic field between the rock and the surrounding rock. Processing of geomagnetic data obtained in the fi

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Gambaro, G., F. Marchini, A. Piccoli, M. A. Nassuato, F. Bilora, and B. Baggio. "The abnormal red-cell oxalate transport is a risk factor for idiopathic calcium nephrolithiasis: a prospective study." Journal of the American Society of Nephrology 7, no. 4 (1996): 608–12. http://dx.doi.org/10.1681/asn.v74608.

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An abnormal erythrocyte transmembrane oxalate flux was described in recurrent idiopathic calcium nephrolithiasis. To verify whether it might represent a risk marker of renal stone disease, two prospective studies were carried out. One hundred ninety patients with idiopathic calcium nephrolithiasis who were enrolled at their first episode of lithiasis during the period 1984 to 1986, form the basis of the first prospective study. The impact of erythrocyte oxalate transport anomaly, gender, familial occurrence of nephrolithiasis, hypercalciuria, hyperoxaluria, and hyperuricosuria on stone recurre

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Yustiana, Meida, Muhammad Zainuri, Denny Nugroho Sugianto, Mahardiani Putri Naulia Batubara, and Anistia Malinda Hidayat. "Dampak Variabilitas Iklim Inter-Annual (El Niño, La Niña) Terhadap Curah Hujan dan Anomali Tinggi Muka Laut di Pantai Utara Jawa Tengah." Buletin Oseanografi Marina 12, no. 1 (2022): 109–24. http://dx.doi.org/10.14710/buloma.v12i1.48377.

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El Niño dan La Niña memiliki pengaruh signifikan terhadap dinamika cuaca di wilayah Indonesia. Oleh karena itu, penelitian ini bertujuan untuk mengetahui dampak fenomena tersebut terhadap curah hujan (CH) dan anomali tinggi muka laut (TML) di Pantai Utara Jawa Tengah meliputi wilayah Brebes, Pemalang, Pekalongan dan Semarang menggunakan analisis kuantitatif deskriptif selama 1993 – 2020. Data yang digunakan pada penelitian ini adalah anomali TML, anomali suhu permukaan laut, dan data observasi CH bulanan dari pos hujan Pusdataru dan BMKG. Data tersebut ditampilkan dalam bentuk grafik anomali C

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Batra, Shivani, and Shelly Sachdeva. "Anomaly free search using multi table entity attribute value data model." International Journal of Computational Science and Engineering 16, no. 4 (2018): 363. http://dx.doi.org/10.1504/ijcse.2018.093777.

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Sachdeva, Shelly, and Shivani Batra. "Anomaly free search using multi table entity attribute value data model." International Journal of Computational Science and Engineering 16, no. 4 (2018): 363. http://dx.doi.org/10.1504/ijcse.2018.10014957.

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Prota, Costantina, Giovanni Di Salvo, Jolanda Sabatino, et al. "Prognostic value of echocardiographic parameters in pediatric patients with Ebstein's anomaly." International Journal of Cardiology 278 (March 2019): 76–83. http://dx.doi.org/10.1016/j.ijcard.2018.10.046.

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Chiapino, Maël, Stephan Clémençon, Vincent Feuillard, and Anne Sabourin. "A multivariate extreme value theory approach to anomaly clustering and visualization." Computational Statistics 35, no. 2 (2019): 607–28. http://dx.doi.org/10.1007/s00180-019-00913-y.

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Ye, Pengfei. "The Value of Active Investing: Can Active Institutional Investors Remove Excess Comovement of Stock Returns?" Journal of Financial and Quantitative Analysis 47, no. 3 (2012): 667–88. http://dx.doi.org/10.1017/s0022109012000099.

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AbstractThis study uses Cremers and Petajisto’s (2009) method to separate active institutional investors from passive ones and shows that active investors can alleviate the anomalous comovement of stock returns. Focusing on 2 events linked to the excess comovement anomaly, Standard & Poor’s 500 Index additions and stock splits, I find that if an event stock has more active institutional investors trading in the post-event period, the anomalous comovement effect disappears. In contrast, if an event stock experiences a massive exit of active investors, this anomaly persists. The exit of acti

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Guo, Hui, and Paulo Maio. "ICAPM and the Accruals Anomaly." Quarterly Journal of Finance 10, no. 03 (2020): 2050014. http://dx.doi.org/10.1142/s2010139220500147.

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We propose new multifactor models to explain the accruals anomaly. Our baseline model represents an application of Merton’s ICAPM in which the key factors represent (innovations on) the term and small-value spreads. The model shows large explanatory power for cross-sectional risking premia associated with three accruals portfolio groups. A scaled version of the model shows better performance, suggesting that accruals risk premia are related with the business cycle. Both models compare favorably with popular multifactor models used in the literature, and also perform well in pricing other impor

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Maheshwari, Supriya, and Raj Singh Dhankar. "Momentum anomaly: evidence from the Indian stock market." Journal of Advances in Management Research 14, no. 1 (2017): 3–22. http://dx.doi.org/10.1108/jamr-11-2015-0081.

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Purpose The purpose of this paper is to provide insights into the profitability of momentum strategies in the Indian stock market. This study further evaluates whether the momentum effect is a manifestation of size, value or an illiquidity effect. Design/methodology/approach Monthly stock return data of 470 BSE listed stocks over the sample period from January 1997 to March 2013 were used to create extreme portfolios (winner and loser). The returns of extreme portfolios were evaluated using t-statistics and a risk-adjusted measure. Further checks were imposed by controlling for other potential

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