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About TCSE

TCSE is a search engine specializing in exploring transcripts of TED Talk. It has been created for educational and scientific purposes. TCSE uses data provided by TED under the Creative Commons BY-NC-ND license, but it is not an official service of TED.


Using and Citing TCSE

TCSE is created by Yoichiro Hasebe at Doshisha University, Kyoto, Japan and made available free for non-commercial educational and scientific use. Please cite one of the following when you publish work which utilizes TCSE.

  Hasebe, Yoichiro. (2015) Design and Implementation of an Online Corpus of Presentation Transcripts of TED Talks. Procedia: Social and Behavioral Sciences 198(24), 174–182.


Development of this system was partially supported by JSPS KAKENHI Grant-in-Aid for Young Scientists (B) Number 25870898

Statistics of English Transcripts

Number of talks2,240
Number of segments614,058
Number of expanded segments273,000
Number of elements5,491,042
Number of lexical items77,989

Number of Translated Talks

Arabic2,080 talks
Bulgarian1,765 talks
Chinese, Simplified2,042 talks
Chinese, Traditional2,044 talks
Croatian1,350 talks
Czech1,177 talks
Dutch1,981 talks
French2,088 talks
German1,874 talks
Greek1,682 talks
Hebrew2,125 talks
Hungarian1,577 talks
Indonesian1,090 talks
Italian2,003 talks
Japanese2,045 talks
Korean2,093 talks
Persian1,610 talks
Polish1,857 talks
Portuguese1,649 talks
Portuguese, Brazilian2,123 talks
Romanian1,960 talks
Russian2,095 talks
Serbian1,618 talks
Spanish2,130 talks
Thai1,026 talks
Turkish1,869 talks
Ukrainian1,256 talks
Vietnamese1,741 talks

TCSE Specifications

TCSE Version6.0.29a
Date of talk data compilationDecember 11, 2016
English POS TaggerEnju 2.4.2

Video Control Tips

How to skip to a specific segment
  1. Pause the video. (Otherwise you can see only closely adjacent segments.)
  2. Locate the segment that you like to skip to and click on it.
How to adjust sync between video and transcript

Sometimes video and transcript are not in sync for some reason. For such cases, the following solution is available on TCSE:

  1. Pause the video. (Otherwise you can see only closely adjacent segments.)
  2. Locate the segment that is expected to be played when the video is resumed
  3. Click on the "adjust" button of the segment,

About Advanced Search

Advanced search is available only in English.
 List of English POS tags
POS keys are specified either fully ({vb}) or partially ({v}).
An advanced search query string cannot consist only of POS keys.

Advanced Search Syntax

Part of Speech{POS}
Surface + Part of SpeechSURFACE{POS}
(with no spaces in-between)
Lemma + Part of Speech[LEMMA]{POS}
(with no spaces in-between)
Logical Disjunction (OR)A|B
Wild Card*
Segment Onset^

Advanced Search Examples

excite, excites, excited, exciting
Noun, any kind
Verb, any kind
to * surprise
to our surprise
to his surprise
[read] {DT} [news|paper|article]
they read these articles
reading the paper or something
I'm reading the news at six
^ having {v}
Having started the process,
Having said that,
an aunt offered financial help,
we called people for help,