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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 talks2,589
Number of segments700,877
Number of expanded segments313,112
Number of elements6,245,134
Number of lexical items84,448

Number of Translated Talks

Arabic2,112 talks
Bulgarian1,771 talks
Chinese, Simplified2,051 talks
Chinese, Traditional2,087 talks
Croatian1,371 talks
Czech1,178 talks
Dutch2,015 talks
French2,149 talks
German1,886 talks
Greek1,688 talks
Hebrew2,158 talks
Hungarian1,595 talks
Indonesian1,090 talks
Italian2,038 talks
Japanese2,057 talks
Korean2,109 talks
Persian1,671 talks
Polish1,863 talks
Portuguese1,723 talks
Portuguese, Brazilian2,207 talks
Romanian1,994 talks
Russian2,136 talks
Serbian1,670 talks
Spanish2,253 talks
Thai1,027 talks
Turkish1,914 talks
Ukrainian1,272 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
Segment Onset (Beginning)^
Negative Match-
Wild Card (matching exactly one element/word)-_
Wild Card (matching variable length of strings)*

Advanced Search Examples

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

TCSE Specifications

TCSE Version6.9.2
Date of talk data compilationMarch 10, 2018
English POS TaggerEnju 2.4.2