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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.

 Change Log   |    Disclaimer   |    Documentation

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 talks 4,227
Number of segments974,360
Number of expanded segments416,382
Number of elements8,712,020
Number of lexical items103,735

Number of Translated Talks

Arabic4,143 talks
Bulgarian2,207 talks
Chinese, Simplified4,142 talks
Chinese, Traditional4,137 talks
Croatian1,983 talks
Czech1,578 talks
Dutch2,949 talks
French4,124 talks
German2,863 talks
Greek2,709 talks
Hebrew3,454 talks
Hungarian3,184 talks
Indonesian2,116 talks
Italian3,714 talks
Japanese3,847 talks
Korean4,006 talks
Persian3,282 talks
Polish3,052 talks
Portuguese3,657 talks
Portuguese, Brazilian4,168 talks
Romanian3,328 talks
Russian3,938 talks
Serbian2,673 talks
Spanish4,165 talks
Swedish1,164 talks
Thai1,858 talks
Turkish3,986 talks
Ukrainian2,174 talks
Vietnamese3,236 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 Version8.0.2
Date of talk data compilationFebruary 5, 2021
English POS TaggerEnju 2.4.4