Anomaly detection in Bitcoin market via price return analysis.

The Bitcoin market becomes the focus of the economic market since its birth, and it has attracted wide attention from both academia and industry. Due to the absence of regulations in the Bitcoin market, it may be easier to bring some kinds of illegal behaviors. Thus, it raises an interesting questio...

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Main Authors: Fa-Bin Shi, Xiao-Qian Sun, Jin-Hua Gao, Li Xu, Hua-Wei Shen, Xue-Qi Cheng
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0218341
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author Fa-Bin Shi
Xiao-Qian Sun
Jin-Hua Gao
Li Xu
Hua-Wei Shen
Xue-Qi Cheng
author_facet Fa-Bin Shi
Xiao-Qian Sun
Jin-Hua Gao
Li Xu
Hua-Wei Shen
Xue-Qi Cheng
author_sort Fa-Bin Shi
collection DOAJ
description The Bitcoin market becomes the focus of the economic market since its birth, and it has attracted wide attention from both academia and industry. Due to the absence of regulations in the Bitcoin market, it may be easier to bring some kinds of illegal behaviors. Thus, it raises an interesting question: Is there abnormity or illegal behavior in Bitcoin platforms? To answer this question, we investigate the abnormity in five leading Bitcoin platforms. By analyzing the financial index, i.e. the normalized logarithmic price return, we find that the properties of price return in bitFlyer are completely different from others. To find the possible reasons, we find that the abnormal ask price and bid price appear simultaneously in bitFlyer, which may be potentially linked to either price manipulation or money laundering. It verifies our conjecture that there may be abnormity or price manipulation in Bitcoin platforms. Furthermore, our findings in price return could also provide an innovative and effective method to detect the abnormity in Bitcoin platforms.
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spelling doaj.art-f1886445ea164499aa6e7abcf970f8b92022-12-21T21:31:32ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01146e021834110.1371/journal.pone.0218341Anomaly detection in Bitcoin market via price return analysis.Fa-Bin ShiXiao-Qian SunJin-Hua GaoLi XuHua-Wei ShenXue-Qi ChengThe Bitcoin market becomes the focus of the economic market since its birth, and it has attracted wide attention from both academia and industry. Due to the absence of regulations in the Bitcoin market, it may be easier to bring some kinds of illegal behaviors. Thus, it raises an interesting question: Is there abnormity or illegal behavior in Bitcoin platforms? To answer this question, we investigate the abnormity in five leading Bitcoin platforms. By analyzing the financial index, i.e. the normalized logarithmic price return, we find that the properties of price return in bitFlyer are completely different from others. To find the possible reasons, we find that the abnormal ask price and bid price appear simultaneously in bitFlyer, which may be potentially linked to either price manipulation or money laundering. It verifies our conjecture that there may be abnormity or price manipulation in Bitcoin platforms. Furthermore, our findings in price return could also provide an innovative and effective method to detect the abnormity in Bitcoin platforms.https://doi.org/10.1371/journal.pone.0218341
spellingShingle Fa-Bin Shi
Xiao-Qian Sun
Jin-Hua Gao
Li Xu
Hua-Wei Shen
Xue-Qi Cheng
Anomaly detection in Bitcoin market via price return analysis.
PLoS ONE
title Anomaly detection in Bitcoin market via price return analysis.
title_full Anomaly detection in Bitcoin market via price return analysis.
title_fullStr Anomaly detection in Bitcoin market via price return analysis.
title_full_unstemmed Anomaly detection in Bitcoin market via price return analysis.
title_short Anomaly detection in Bitcoin market via price return analysis.
title_sort anomaly detection in bitcoin market via price return analysis
url https://doi.org/10.1371/journal.pone.0218341
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AT jinhuagao anomalydetectioninbitcoinmarketviapricereturnanalysis
AT lixu anomalydetectioninbitcoinmarketviapricereturnanalysis
AT huaweishen anomalydetectioninbitcoinmarketviapricereturnanalysis
AT xueqicheng anomalydetectioninbitcoinmarketviapricereturnanalysis