http://paper.sciencenet.cn/htmlpaper/20144914583413432503.shtm

Online Impact

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新闻  Picked up by 13 news outlets

博客  Blogged by 3

微博  Tweeted by 21

25 readers on Mendeley文献管理系统读者量

1 reader on CiteULike文献管理系统读者量

This Altmetric score means that the article is:

• in the 99 percentile of a sample of 84523 of the 85177 tracked articles of a similar age in all journals

• in the 93 percentile (ranked 62) of the 963 tracked articles of a similar age in PNAS

Article Usage

http://www.pnas.org/content/111/13/E1240.abstract?tab=metrics

• News

• Blogs

• Twitter

• Score

• Demographics

• Help

http://www.altmetric.com/details.php?domain=www.pnas.org&citation_id=2191294

论文替代计量分析实例 2  

最近，奥地利物理学家设计出一种新奇方法，无需光与拍摄目标相互作用，利用量子效应也能拍出照片。这听起来似乎颠覆了传统物理的成像原理，他们用一个镂空的猫图案进行了实验，虽不是一张同时“要死要活”的猫照片，却是粒子能同时处于两种状态的证明。相关论文发表在8月28日的《自然》杂志上。

http://paper.sciencenet.cn/htmlpaper/20148291128835834379.shtm

Article metrics for:

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Quantum imaging with undetected photons

• Gabriela Barreto Lemos,

• Victoria Borish,

• Garrett D. Cole,

• Sven Ramelow,

• Radek Lapkiewicz

• & Anton Zeilinger

Nature 512, 409–412 (28 August 2014) doi:10.1038/nature13586Last updated: 23 September 2014 3:59:39 EDT

Total citations

• Data not available
  Web of Science
• Data not available
  CrossRef
• Data not available
  Scopus

Online attention 网络关注

Altmetric score (what's this?)

• 微博 Tweeted by 86
• 脸书 On 3 Facebook pages
• 谷歌 Mentioned in 20 Google+ posts
• 新闻 Picked up by 24 news outlets
• 1 Reddit

• View more

This Altmetric score means that the article is:

• in the 99 percentile (ranked 108th) of the 51,735 tracked articles of a similar age in all journals

• in the 95 percentile (ranked 26th) of the 553 tracked articles of a similar age in Nature

13,973Page views

26 Aug 201421 Sep 2014023334667700093331166714000

Mentions in news, blogs & Google+ 新闻、博客、谷歌关注量

News articles (24) 新闻24篇

• Quantenphysik: fotografieren mit verlorenem lichtSpektrum

• "spooky" quantum entanglement reveals invisible objectsNational Geographic

• Schrödinger's cat caught on quantum filmNew Scientist

• Η γάτα του σρέντινγκερ σε κβαντικό «ενσταντανέ»To Vima

• Blind quantum camera snaps photos of schrödinger’s catScience News

• Here's the oddest fuzzy kitten picture you ever sawScience/AAAS

• Verschränkte photonen bilden ein objekt ab, ohne in seine nähe zu kommenLABO Online

• This is schrödinger's cat caught on cameraGizmodo

View all news articles

Scientific blogs (6)

Google+ posts (20)

Twitter demographics

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Country 国家	Tweets 微博	% of Tweets
United States of America 美国	14	16%
United Kingdom 英国	4	5%
Germany 德国	3	3%
Japan 日本	3	3%
Poland  波兰	2	2%
Venezuela  委内瑞拉	2	2%
Australia 澳大利亚	2	2%
Greece  希腊	1	1%

Explanation of terms and methodology

• Sources: Web of Science, CrossRef, Scopus, WebTrends, and Altmetric

  Frequency of updates: In most cases, our metrics data is updated hourly, In some cases, such as page views, the data is not available the first 48 hours after an article is published.

• Citations

  Single number count for article citations from each service's database (may vary by service). The citations counts are reliant on the availability of the individual APIs from Web of Science, CrossRef, and Scopus. These counts are updated daily once they become available. Once a citation count is available, the list of articles citing this one is accessible by clicking on the circle for that citation source.

  
  

• Page views

  A cumulative count of full-text article views that includes HTML views and PDF downloads. These data reflect only usage on the nature.com journal platform, as tracked by WebTrends tagging, and are only for articles published on or after 1 January 2012. NPG content is also available on other third party platforms and in repositories around the world; we are currently not including article usage data from any of these third-party services. The page views data is available 48 hours after online publication and is updated daily.

  
  

• News, blogs and Google+ posts

  The number of times an article has been cited by individual mainstream news sources, blog post, or member of Google+ along with a link to the original article or post. News articles, blog posts and Google+ posts do not always link to articles in a way that can be picked up by aggregators used by Altmetric, so the listed links are not necessarily a reflection of the entire scope of media, blog or Google+ interest. Further, the list of blogs and news sources covered is manually curated by Altmetric and thus is subject to their discretion for inclusion as a scientific blog or media source. The news, blog, and Google+ posts are provided by Altmetric and are updated hourly.

  
  

• Altmetric score

  Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention and the number in the centre is the Altmetric score. The score is calculated based on two main sources of online attention: social media and mainstream news media. Altmetric also tracks usage in online reference managers such as Mendeley and CiteULike, but these do not contribute to the score. Older articles will typically score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for articles of a "similar age" (published within 6 weeks of either side of the publication date of this article).

  For a more detailed description of Altmetric, the Altmetric score, and sources used, please see Altmetric's information page.

  
  

• Twitter demographics

  Provides the number of tweets broken down by country of origin for the Twitter account. The geographic breakdown for the twitter sources is provided by Altmetric and is updated hourly.

  
  

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http://www.nature.com/nature/journal/v512/n7515/nature13586/metrics

国际上期刊论文都采用了论文替代计量分析

• Metrics

对每篇论文进行实时计量分析。比如SCOPUS期刊数据库、《科学》、《自然》系列期刊、PLOS系列期刊、PMC 开放获取期刊、BIOMED CENTER 开放获取期刊等出版平台都采用了论文计量分析工具。

中国期刊还没有看到启用论文计量分析（Metrics）工具，应该与国际接轨，尽快采用论文计量分析。

替代计量学（Altmetrics）----学术评价国际惯例

http://blog.sciencenet.cn/blog-280034-828818.html

替代计量学（Altmetrics）已是学术评价的国际惯例，而国内还没有开展研究和应用，很多科研人员还不太了解替代计量学。

采用替代计量分析的方法http://www.altmetric.com/ ，每日对每篇科学论文的学术影响力进行实时监测。

Altmetrics（替代计量学）用于学术论文评价  http://blog.sciencenet.cn/blog-280034-824624.html

  国外很多出版和信息机构http://blog.sciencenet.cn/home.php?mod=space&uid=280034&do=blog&quickforward=1&id=827454，如

Science出版平台、NATURE出版平台、PLOS出版平台、SCOPUS数据库、PMC OA期刊出版平台、BioMed Central  OA期刊出版平台等采用了替代计量分析（Altmetrics）对每篇科学论文的学术影响力进行实时监测http://blog.sciencenet.cn/blog-280034-827591.html。

Altmetrics （替代计量学）在国际上已广泛研究和应用，我国科学界和信息界应该积极引进、研究并应用；开发中文替代计量分析工具与平台；举办各类培训班和研讨会，有更多的科研人员、信息人员了解掌握替代计量方法，用于科研学术影响力评价。    

Altmetrics所具有的客观性，公正、透明性，覆盖、 社会性，补充性，实时性特征。通过文献研究、整理，得到在社交媒体中Altmetrics即时测量出的学术论文的影响力，与科技期刊的学术影响力相吻合；在开放存取领域中，Altmetrics学术影响力计量方法已得到认识、关注和应用，并为科技期刊的影响力计量化、可视化评价提供依据。

PlumX所提供的Altmetrics就可以发挥很大的作用，广义的Altmetrics包括五种内容:

(1)使用率(Usage)，如下载(downloads);

(2)获取(Captures)，如书签(bookmarks);

(3)关注(Mentions)，如博客(blogs);

(4)社交媒体(Social Media)，如推特(tweets);

(5)引用(Citations)，如Web of knowledge;Scopus。

狭义的Altmetrics则仅包含获取、关注以及社交媒体这3项。

关于 Plum Analytics

Plum Analytics 能够解答如何对研究所产生的影响力进行测量的问题，使资助者、研究人员、图书馆员、出版商以及其他人员能够获取最新以及全面的信息。 无论是为了实施、资助还是监控研究，Plum 都能通过其 PlumX 产品为您提供准确及时的信息。 如需了解更多信息，请访问http://www.plumanalytics.com。