Profile

Cover photo
Daniel Lemire
Works at LICEF Research Center, TELUQ, Université du Québec
Attended University of Toronto
Lives in Montreal, Canada
22,900 followers|1,845,510 views
AboutPostsPhotosYouTube+1's

Stream

Daniel Lemire

Shared publicly  - 
 
If I ever agree to wear something so ridiculous for professional reasons, please kill me.
 
TIL that the Canadian Supreme Court consists entirely of Santa Clauses.
(The article itself is not particularly interesting, I'm just showing off the picture.)
Canada is often mocked as the Land of the Never-Setting Apologies, a place where other people’s feelings are prized over authenticity and people pound one another in secret with hockey sticks simply because they are so tired of saying sorry all the time. To which I have sometimes been known...
3 comments on original post
11
3
Dan Bennett's profile photoShawn H Corey's profile photoSaravanan Thirumuruganathan's profile photoMarc-André Laverdière's profile photo
8 comments
 
British hold-over tradition.
Them Canucks want the gifts of justice!
Add a comment...

Daniel Lemire

Shared publicly  - 
 
How can you compute intersections faster?
8
Add a comment...

Daniel Lemire

Shared publicly  - 
 
Yes, there is ample supply of people supporting  rote memorization for its own sake and antiquated skills... at least as long as they are taught to children...
20
5
Jeff Doak's profile photoColin Wernham's profile photoJan Jensen's profile photoRaja sankar's profile photo
30 comments
 
+Aner Ben-Artzi "I cannot imagine how anyone could have high mathematical abilities without memorizing the multiplication tables so let us force millions of kids to do it. My arguments are self-sufficient." School is guided by faith-based reasoning and a pre-scientific mindset. Is it any wonder that we have made negligible progress in the last 20 years?



 c.c. +Stephen Downes  
Add a comment...
 
They call it the "Canadian way", but... seriously... if you enter a store and the owners are away, are you going to loot it? Even from purely selfish point of view... would you risk your reputation by grabbing stuff off the shelves? Who needs tire-related stuff so badly?
7
3
Elazar Leibovich's profile photoSordatos Cáceres's profile photoShawn H Corey's profile photoiPan Darius's profile photo
6 comments
 
The achievement is not that 99% of the individuals won't steal. The achievement is, that even the 1% which have no reputation to lose didn't steal (no idea what happened there, but I'm just stating my understanding of why a store which is not looted is achievement for society).
Add a comment...
 
GitHub is getting spam now... it has clearly caught on. Next: we need spam detection for programming projects.
Online-C-tutorial-for-beginners - We are world best online tutorial website where students are taking all programming courses and also take to quiz test to know their ability. Our website Techguru lab offers free Online Tutorial for C beginners that will assist to learn fundamental concepts of C programming language. With Techguru lab, we will discuss what the basic need to start C programming language is. In this tutorial we wilI cover all topic...
6
Dominic Amann's profile photoDaniel Lemire's profile photoErich Schubert's profile photo
3 comments
 
it's 404 by now. Even the user seems to be gone. Thank you.
Add a comment...

Daniel Lemire

Shared publicly  - 
10
3
Randall Lee Reetz's profile photoJoerg Fliege's profile photoSaravanan Thirumuruganathan's profile photoMiguel Angel's profile photo
12 comments
 
I'm way more worried about people "thinking about their own future" than I am about people who (you declared) don't. What's rare are people who can think about THE future, regardless of what it might mean for their own life.
Add a comment...
Have him in circles
22,900 people
Shanthanu Bhardwaj's profile photo
Sam Gunn's profile photo
Vinod Khare's profile photo
Stephan Paukner's profile photo
Julia Tung's profile photo
Keyvin Cuarteron's profile photo
Deanna McWilliams's profile photo
Daryl Scott (The Dangerous One)'s profile photo
shankar bs's profile photo

Daniel Lemire

Shared publicly  - 
 
Should we go back in time when there was less "inequality"?
6
1
Daniel Lemire's profile photoChristopher Smith's profile photoLeonid Boytsov's profile photoLevi Ramsey's profile photo
15 comments
 
No, but we should reduce inequality in the present time. Even if you are not into social justice, inequality is very bad for economy.
Add a comment...

Daniel Lemire

Shared publicly  - 
 
I have this android phone (HTC One). We use the access point app to make a Wifi point appear. Nope. Nothing appears, and I have several different computers that should be able to see it. How do I  debug this problem? Yes, we rebooted the phone.
1
Sancar Adali's profile photopatrick kanne's profile photoJan Moren's profile photoDaniel Lemire's profile photo
10 comments
 
+Sancar Adali +Jan Moren  Thanks. Yes, I named it HTC and I tried to connect to it by name, even if I could not see it. :-(
Add a comment...

Daniel Lemire

Shared publicly  - 
 
"Benoit was never taught the alphabet and never learned multiplication tables past fives. Even today he claims not to know the alphabet, so that it is difficult for him to use a telephone book. (...) He solved problems with great leaps of geometric intuition, rather than the "proper" established techniques of strict logical analysis. For instance, in the crucial entrance exams he could not do algebra very well, but still managed to receive the highest grade by, as he puts it, translating the questions mentally into pictures. (...)"
19
5
richie mais's profile photoRaja sankar's profile photoMaxim Zakharov's profile photoOlessya Zalipyatskikh's profile photo
4 comments
LL Pete
+
1
2
1
 
Think what he could have accomplished if he had learned his ABC's and the multiplication table.  A tragic waste of such potential.
LLP
Add a comment...

Daniel Lemire

Shared publicly  - 
 
Thinking out loud about what we should teach our kids instead of having them run through long divisions by hand...
7
LL Pete's profile photoAner Ben-Artzi's profile photoDaniel Lemire's profile photo
3 comments
Add a comment...

Daniel Lemire

Shared publicly  - 
 
Honest question from my 11-year-old: is Gmail the same thing as email?
14
1
Preston Bannister's profile photoElazar Leibovich's profile photoandrew mcmillan's profile photoVali Ticau's profile photo
11 comments
 
+Elazar Leibovich sure, but it's still electronic mail by my definition :-)
Add a comment...

Daniel Lemire

Shared publicly  - 
 
We need more of these kind of studies : 

" The use of online videos and flipped classrooms is a natural fit for many CS courses, especially in the introductory sequence, and the use of these techniques is growing. However, the benefits of these techniques depend heavily on student preparation before class meetings. This paper presents tests of the effectiveness of basic multiple choice quizzes as gateway checks in a flipped classroom by looking at the impact they have on student grades. (...) Ignoring aptitude and learning approaches, statistical analysis of the student grades did not support our hypothesis that the gate-check video quizzes would be beneficial. "

c.c. +Mark Lewis 
Published in: Cover Image. · Proceeding. SIGCSE '15 Proceedings of the 46th ACM Technical Symposium on Computer Science Education. Pages 224-228. ACM New York, NY, USA ©2015 table of contents ISBN: 978-1-4503-2966-8 doi>10.1145/2676723.2677302 ...
12
2
Sverker Janson's profile photoMark Lewis's profile photoKosta Derpanis's profile photoAaron Quigley's profile photo
9 comments
 
+Sverker Janson, one of the challenges that I have with using other systems is that we use Scala for teaching introductory CS. There are lots of systems for online quizzing and such, but most use Java with a growing number accepting Python.
Add a comment...
People
Have him in circles
22,900 people
Shanthanu Bhardwaj's profile photo
Sam Gunn's profile photo
Vinod Khare's profile photo
Stephan Paukner's profile photo
Julia Tung's profile photo
Keyvin Cuarteron's profile photo
Deanna McWilliams's profile photo
Daryl Scott (The Dangerous One)'s profile photo
shankar bs's profile photo
Work
Occupation
Computer scientist
Skills
indexing - information retrieval - databases - collaborative filtering
Employment
  • LICEF Research Center, TELUQ, Université du Québec
    Professor, 2004 - present
    Promoted to full professor in 2009. Funded by NSERC Discovery grants (2003-2007, 2007- 2012, 2012-2017) in computer science. Program committee member at major conferences (ACM CIKM, ACM WSDM, ACM RecSys).
  • National Research Council of Canada
    Research Officer, 2002 - 2004
    Founded and lead the e-Health research group. Designed the Slope One algorithm.
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Montreal, Canada
Story
Tagline
Computer Scientist
Introduction
I have always been intensely curious and I am always scouting for new knowledge. I love to program and publish open source software.

I have had many jobs: researcher in a government laboratory, University professor, entrepreneur and consultant. 

I spent too much time on my formal education. It got me a Ph.D. and even a post-doctoral fellowship. But I consider myself to be an autodidact.

I have two great kids and a beautiful wife. I live somewhere near Montreal in a small house I love.

My home online is at http://lemire.me
Bragging rights
I drink my weight in coffee every day.
Education
  • University of Toronto
    B.Sc. (Mathematics), 1989 - 1994
    Graduated with very high distinction.
  • University of Toronto
    M.Sc. (Mathematics), 1994 - 1995
  • École Polytechnique and University of Montreal
    Ph.D. (Engineering Mathematics), 1995 - 1998
    Graduated in 2.5 years.
Basic Information
Gender
Male
Relationship
In a relationship
Daniel Lemire's +1's are the things they like, agree with, or want to recommend.
Ronin Institute
plus.google.com

The Ronin Institute: a home for the independent scholar

Open Data Structures
plus.google.com

data structures, textbook, open-source, open content, open access

Tinycon - Favicon Alerts
tommoor.github.com

Tinycon. A small library for manipulating the favicon. Tinycon allows the addition of alert bubbles and changing the favicon image. Tinycon

Why experts exaggerate — The Endeavour
feedproxy.google.com

Why experts exaggerate. by John on November 26, 2011. Seth Roberts writes this morning: How can you tell when an expert is exaggerating? His

Preparing for change, expressing intent — The Endeavour
feedproxy.google.com

Many good programming practices boil down to preparing for change or expressing intent. It seems to me that novices emphasize the former, ex

Automated Essay Scoring Systems as Effective as Human Graders ~ Stephen'...
www.downes.ca

Stephen's Web, the home page of Stephen Downes, with news and information on e-learning, new media, instructional technology, educational de

Triangle party — The Endeavour
feedproxy.google.com

Doodling in Math Class: Triangle Party. Tagged as: Math. { 2 comments… read them below or add one }. 1. Harlan 12.10.11 at 08:23. That's

You have more choices than you think — The Endeavour
feedproxy.google.com

You have more choices than you think. by John on December 10, 2011. This week Seth Godin wrote a blog post that include this gem: Remarkable

The new luxury
blog.vivekhaldar.com

Imagine, if, in today’s world, you saw someone jotting down notes in a meeting with a fine fountain pen. You know, the kind that has a cartr

Nothing found for 2012 03 16 8-lessons-about-money-i-learned-from-my-fa...
feedproxy.google.com

Sorry - this is an error page. We may have goofed, or you may have typed in a URL that doesn't exist. Try these pages instead: About Thi

…research shows that knowledge workers actually...
blog.vivekhaldar.com

“…research shows that knowledge workers actually have fewer good hours in a day than manual laborers do — on average, about six hours, as op

Knowing and Doing: February 2013 Archives
www.cs.uni.edu

It is a commonplace for anyone who has taught that we learn a lot more about any topic when we teach it -- even a topic in which we are ackn

Do we need copyright?
lemire.me

The concept of property is a social construction. Animals, such as cats, can own a piece of food, or a territory, but only as long as they a

Are Relational Databases good for anything anymore?
lemire.me

Are Relational Databases good for anything anymore? (Note: thanks to Daniel for letting me use his blog. All comments, questions and critici

ON: ‘Fat tax’ won’t solve obesity | Canadian Taxpayers Federation
taxpayer.com

A not-for-profit citizen's advocacy group dedicated to lower taxes, less waste and accountable government.

ongoing by Tim Bray · Seasonal Shinies
www.tbray.org

Seasonal Shinies. Search. Today we took down the Christmas tree. Christmas tree decorations. The pile of decorations is smaller than it was

Freakonomics: What Went Wrong? ~ Stephen's Web
www.downes.ca

Stephen's Web, the home page of Stephen Downes, with news and information on e-learning, new media, instructional technology, educational de

Seth's Blog » Blog Archive » Duct Tape, the Eurozone, Status-Quo Bias...
blog.sethroberts.net

I Recommend. The Great Stagnation by Tyler Cowen. The Man Who Would Be Queen by Michael Bailey. Feynman's Rainbow by Leonard Mlodinow. M

Seth's Blog » Blog Archive » Assorted Links
blog.sethroberts.net

I Recommend. The Great Stagnation by Tyler Cowen. The Man Who Would Be Queen by Michael Bailey. Feynman's Rainbow by Leonard Mlodinow. M

Seth's Blog » Blog Archive » Steve Jobs’ Graduation Speech: My Opinion
blog.sethroberts.net

I Recommend. The Great Stagnation by Tyler Cowen. The Man Who Would Be Queen by Michael Bailey. Feynman's Rainbow by Leonard Mlodinow. M