半機械人合作發(fā)現(xiàn)40,000個環(huán)形星系
指南者留學
2022-07-19 15:10:26
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<div class="image-uploaded gallery old-record-id-doxcnOe4aAIskkmuaExAhOXBbOc" style="text-align: justify;" data-type="image" data-ace-gallery-json="{"items":[{"uuid":"f35c5b54-f17f-48b0-b95d-585593b5b563","height":618,"width":778,"currHeight":618,"currWidth":778,"natrualHeight":618,"natrualWidth":778,"pluginName":"imageUpload","scale":1,"src":"https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fall%2FboxcnEYv41Bph6StiEIcLngRTzg%2F%3Fmount_node_token%3DdoxcnOe4aAIskkmuaExAhOXBbOc%26mount_point%3Ddocx_image","file_token":"boxcnEYv41Bph6StiEIcLngRTzg","image_type":"image/png","size":947787,"comments":[]}]}"><span class="p"><img src="https://info.compassedu.hk/sucai/content/1658819350683/1658819350683.png" width="778" height="618" /></span></div>
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<div class="ace-line ace-line old-record-id-doxcng0cGsqCWQyOGMXXVoLIgYd" style="text-align: justify;"><span class="p">人類和機器智能共同努力發(fā)現(xiàn)了40,000個環(huán)形星系,科學家們今天將在全國天文學會議上宣布。</span></div>
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<div class="ace-line ace-line old-record-id-doxcn2scS66ia0ai247VauskYXf" style="text-align: justify;"><span class="p">曼徹斯特大學的Mike Walmsley博士將介紹這項新工作,描述這種“半機械人”方法如何測量數(shù)百萬個星系的形狀。</span></div>
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<div class="ace-line ace-line old-record-id-doxcnUoWaKUkouWakmOfYKDR2xh" style="text-align: justify;"><span class="p">星系過著混亂的生活。與其他星系的碰撞以及來自超大質量黑洞的能量爆發(fā)破壞了數(shù)十億顆恒星的顏色和軌道,留下了志愿者在銀河動物園網(wǎng)站上搜索的標記。但是,確切地了解哪些宇宙事件導致哪些標記需要數(shù)百萬張測量圖像 - 比人類所能搜索的還要多。</span></div>
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<div class="ace-line ace-line old-record-id-doxcnwQsSqQ4m6W08Y6i21LlAbb" style="text-align: justify;"><span class="p">為了提供幫助,沃爾姆斯利博士呼吁“銀河動物園”,該項目招募了數(shù)十萬志愿者來測量數(shù)百萬個星系的形態(tài)(形狀)。</span></div>
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<blockquote class=" old-record-id-doxcnaMYGEWyYm0WM0ajZV2m32g" data-type="quote_container">
<div class="ace-line ace-line old-record-id-doxcn24Ic20UocwSg2RAXIIAb1c" style="text-align: center;"><span class="h6"><em>通過Zoobot,Galaxy Zoo志愿者將幫助其他天文學家解決我們從未想過要問的問題。</em></span></div>
<div class="ace-line ace-line old-record-id-doxcnuyocSU4CIIMeSimjEVHILc" style="text-align: center;"><em><strong><span class="h6">——邁克·沃姆斯利博士</span></strong></em></div>
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<div class="ace-line ace-line old-record-id-doxcnm2yAaWEEwAoSWymVKdnD2b" style="text-align: justify;"><span class="p">十年的Galaxy Zoo志愿者測量(總計超過9600萬次點擊)被用來創(chuàng)建一個自動助手 - 一種新的AI算法。該算法被親切地命名為“Zoobot”,不僅可以準確地預測志愿者會說什么,還可以理解它可能出錯的地方。</span></div>
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<div class="ace-line ace-line old-record-id-doxcnKgMqssg446eQMdYupqhWpe" style="text-align: justify;"><span class="p">40,000個罕見的環(huán)形星系的發(fā)現(xiàn)是以前已知的六倍。環(huán)需要數(shù)十億年才能形成,并在星系 - 星系碰撞中被摧毀,因此這個巨大的新樣本將有助于揭示孤立的星系是如何演化的。該數(shù)據(jù)集還將告訴科學家星系如何更普遍地老化。</span></div>
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<div class="ace-line ace-line old-record-id-doxcnm2WsUQCcSWOyk3nGUL59Gf" style="text-align: justify;"><span class="p">Zoobot旨在一次又一次地為新的科學目標進行再培訓。就像音樂家可以比他們的第一個樂器更快地學習新樂器一樣,Zoobot可以輕松學習回答新的形狀問題,因為它已經學會了回答50多個不同的問題。Walmsley博士說:“通過Zoobot,Galaxy Zoo志愿者將幫助其他天文學家解決我們從未想過要問的問題。</span></div>
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