武夷山分享 http://blog.sciencenet.cn/u/Wuyishan 中国科学技术发展战略研究院研究员;南京大学信息管理系博导

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美国能源部的科技视频节目总汇

已有 3715 次阅读 2014-4-17 07:02 |个人分类:图书情报学研究|系统分类:科普集锦

美国能源部的科技视频节目总汇

武夷山


   美国能源部科技情报局(OSTI)利用微软的音频视频处理、语音识别等先进技术,推出了反映其科技成果的视频节目展示窗口ScienceCinema(科学影视)。点击下面所附原文中的蓝色下划线链接,可以去感受一下。

   我曾见过他们语音识别能力的演示,例如,你检索“燃料电池”,系统就能把视频节目中念出“燃料电池”的所有镜头都给找出来。若没有此技术,你想了解燃料电池,只好把已知含有燃料电池内容的整部片子都看一遍。 2013年,该系统又有突破性进展----用户可在文本格式下看视频节目。                

   本所历史上有“声像馆”,就是干类似的事情的。由于长期缺乏经费支持,这个部门不复存在了,相关业务虽然还在,但不景气。  

   原报道如下:              

ScienceCinema: Searchable Videos Showcasing DOE Research


ScienceCinema

Scientific videos highlighting exciting research and development (R&D) sponsored by DOE can be searched at ScienceCinema, OSTI’s multimedia product.  As videos, animations, visualizations and other multimedia have become increasingly prominent forms of scientific communication, ScienceCinema was developed in 2011 in partnership with Microsoft Research, using innovative, state-of-the-art audio indexing and speech recognition technology. Searching across large volumes of multimedia content, ScienceCinema allows users to quickly search videos and identify the exact point in the video where the search terms were spoken. Closed captioning capabilities were added in 2013, enabling users to view the audio in textual format,  a breakthrough in accessibility.

ScienceCinema currently contains over 3,300 videos from DOE national laboratories, other DOE research facilities and CERN.  A broad range of energy-related topics are covered. For example, see how companies are improving the efficiency of solar cells in “Solar Innovator,” learn more about the Higgs Boson in “Unraveling the Higgs Boson Discovery” and watch “Breakthrough: Using Microbes to Make Advanced Biofuels” to learn how the DOE Joint BioEnergy Institute is using microbes to convert non-food crops and agricultural waste into fuels for cars, trucks and planes.

Recognized as one of DOE’s initiatives in the DOE Open Government Plan 2.0 – for making the federal government more transparent, participatory and collaborative – ScienceCinema will continue to grow as new videos are produced by the laboratories and other research facilities.  As part of OSTI’s role to collect, disseminate and preserve the Department’s scientific output, we look forward to engaging more fully with the STIP community to ensure that DOE’s multimedia-based R&D information is easily accessible and available to the public.

What Is Audio Indexing?

ScienceCinema uses audio indexing and speech recognition technology to convert the audio tracks of videos into searchable text. Using the Microsoft Research Audio Video Indexing System (MAVIS) technology, ScienceCinema allows users to search for specific words and phrases. This allows users to search for words spoken in a video in the same way that they would search for words in a text document. As with full-text searching, audio indexing lets users drill into a video to find terms that may not be used in the title, description or other parts of the citation. The search results display snippets from videos where the search term was spoken. Users can then select a snippet or a segment along the timeline to begin playing the video at the exact point in the video where the words were spoken.

Statistically Speaking: The Contents of ScienceCinema
Number of ItemsBy Topic
Total3370Energy1124
DOE2557Physics862
CERN813Materials258


Mathematics  150


Nuclear307
By YearBiology100
2011-2014713Environment464
Pre-20112652Computing342


Renewables126


Fusion/Plasma169
By Media TypeChemistry184
Audio414Space185
Video2956Technology388


Power189
 




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