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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 talks2,342
Number of segments641,986
Number of expanded segments285,855
Number of elements5,739,066
Number of lexical items79,527

Number of Translated Talks

Arabic2,086 talks
Bulgarian1,769 talks
Chinese, Simplified2,042 talks
Chinese, Traditional2,045 talks
Croatian1,352 talks
Czech1,178 talks
Dutch1,993 talks
French2,104 talks
German1,877 talks
Greek1,685 talks
Hebrew2,138 talks
Hungarian1,579 talks
Indonesian1,090 talks
Italian2,008 talks
Japanese2,048 talks
Korean2,097 talks
Persian1,625 talks
Polish1,859 talks
Portuguese1,681 talks
Portuguese, Brazilian2,141 talks
Romanian1,963 talks
Russian2,101 talks
Serbian1,628 talks
Spanish2,158 talks
Thai1,027 talks
Turkish1,872 talks
Ukrainian1,260 talks
Vietnamese1,741 talks

TCSE Specifications

TCSE Version6.2.3
Date of talk data compilationMay 15, 2017
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,