meta_pixel
Tapesearch Logo
Log in
Lex Fridman Podcast

Rohit Prasad: Amazon Alexa and Conversational AI

Lex Fridman Podcast

Lex Fridman

Technology, Society & Culture, Philosophy, Science

4.713.6K Ratings

🗓️ 14 December 2019

⏱️ 106 minutes

🧾️ Download transcript

Summary

Rohit Prasad is the vice president and head scientist of Amazon Alexa and one of its original creators.

This conversation is part of the Artificial Intelligence podcast. If you would like to get more information about this podcast go to https://lexfridman.com/ai or connect with @lexfridman on Twitter, LinkedIn, Facebook, Medium, or YouTube where you can watch the video versions of these conversations. If you enjoy the podcast, please rate it 5 stars on Apple Podcasts or support it on Patreon.

This episode is presented by Cash App. Download it (App Store, Google Play), use code “LexPodcast”. 

The episode is also supported by ZipRecruiter. Try it: http://ziprecruiter.com/lexpod

Here’s the outline of the episode. On some podcast players you should be able to click the timestamp to jump to that time.

00:00 – Introduction
04:34 – Her
06:31 – Human-like aspects of smart assistants
08:39 – Test of intelligence
13:04 – Alexa prize
21:35 – What does it take to win the Alexa prize?
27:24 – Embodiment and the essence of Alexa
34:35 – Personality
36:23 – Personalization
38:49 – Alexa’s backstory from her perspective
40:35 – Trust in Human-AI relations
44:00 – Privacy
47:45 – Is Alexa listening?
53:51 – How Alexa started
54:51 – Solving far-field speech recognition and intent understanding
1:11:51 – Alexa main categories of skills
1:13:19 – Conversation intent modeling
1:17:47 – Alexa memory and long-term learning
1:22:50 – Making Alexa sound more natural
1:27:16 – Open problems for Alexa and conversational AI
1:29:26 – Emotion recognition from audio and video
1:30:53 – Deep learning and reasoning
1:36:26 – Future of Alexa
1:41:47 – The big picture of conversational AI

Transcript

Click on a timestamp to play from that location

0:00.0

The following is a conversation with Roja Prasad.

0:02.9

He's the vice president and head scientist

0:04.9

of Amazon Alexa and one of its original creators.

0:08.8

The Alexa team embodies some of the most challenging,

0:12.1

incredible, impactful, and inspiring work

0:15.0

that is done in AI today.

0:17.0

The team has to both solve problems

0:19.1

at the cutting edge of natural language processing

0:21.7

and provide a trustworthy, secure, and enjoyable experience

0:25.3

to millions of people.

0:27.4

This is where state-of-the-art methods

0:29.4

in computer science meet the challenges

0:31.8

of real world engineering.

0:33.7

In many ways, Alexa and the other voice assistants

0:37.2

are the voices of artificial intelligence

0:39.4

to millions of people and an introduction to AI

0:43.1

for people who have only encountered it in science fiction.

0:46.9

This is an important and exciting opportunity.

0:49.9

So the work that Roja and the Alexa team are doing

0:52.9

is an inspiration to me and to many researchers

0:55.9

and engineers in the AI community.

0:58.8

This is the Artificial Intelligence Podcast.

...

Please login to see the full transcript.

Disclaimer: The podcast and artwork embedded on this page are from Lex Fridman, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of Lex Fridman and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.

Copyright © Tapesearch 2026.