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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.

 Changelog   |    Disclaimer

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

Special thanks to Mura Nava (EFL Notes) for continuous feedback.

Statistics of English Transcripts

Number of talks2,503
Number of segments681,635
Number of expanded segments304,109
Number of elements6,077,032
Number of lexical items83,330

Number of Translated Talks

Arabic2,104 talks
Bulgarian1,769 talks
Chinese, Simplified2,048 talks
Chinese, Traditional2,067 talks
Croatian1,370 talks
Czech1,178 talks
Dutch2,006 talks
French2,134 talks
German1,883 talks
Greek1,687 talks
Hebrew2,152 talks
Hungarian1,586 talks
Indonesian1,090 talks
Italian2,029 talks
Japanese2,056 talks
Korean2,105 talks
Persian1,656 talks
Polish1,860 talks
Portuguese1,709 talks
Portuguese, Brazilian2,185 talks
Romanian1,989 talks
Russian2,122 talks
Serbian1,656 talks
Spanish2,223 talks
Thai1,027 talks
Turkish1,891 talks
Ukrainian1,271 talks
Vietnamese1,745 talks

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,

TCSE Specifications

TCSE Version6.9.0
Date of talk data compilationDecember 3, 2017
English POS TaggerEnju 2.4.2