Why is Training Error lower than Testing Error during the First Epoch?
Validation Error less than training error?
ctrl + a doesn't work in browsers The combination for select all (Ctrl+A) doesn't work in a browser (either if we speak about firefox or chromium). It doesn't work if I try to clik in to the adress bar nor if I try to use it to select what I've written in google search bar at google.com. When I press Ctrl+A it simply takes the cursor before the first letter.  This doesn't happen when I use a text editor software like Libre Office. There the shortcut does what's supposed to do, selecting all the text.  What could be the problem? Galactic Rotation Speeds - Ehrenfest Paradox, Gravitational time dilation, Dark Matter - all of the above? Why doesn't LaTeX hyphenate words containing accents, e.g. "développement"? In this MWE, Latex doesn't hyphen the word "développement" and prefer to create a HUGE hbox.   \documentclass[a4paper,12pt,dvipsnames]{report} \usepackage[utf8]{inputenc} \usepackage[french]{babel} \usepackage{lmodern} \usepackage[a4paper, showframe]{geometry}  % Title Page \title{} \author{}   \begin{document} \section{Section}  \subsection{Subsection} \begin{description}  \item [Marhalie Toucse : ]  ingénieure de la plate-forme SORTATZ. Elle réalise   le développement du projet des tex écrit pour lipsum lagae legarc sgsi text text text text text text text text text.  \end{description} \end{document} Given the following components  DECLARE @D DATE = '2013-10-13' DECLARE @T TIME(7) = '23:59:59.9999999'   What is the best way of combining them to produce a DATETIME2(7) result with value '2013-10-13 23:59:59.9999999'?  Some things which don't work are listed below.    SELECT @D + @T       Operand data type date is invalid for add operator.     SELECT CAST(@D AS DATETIME2(7)) + @T       Operand data type datetime2 is invalid for add operator.     SELECT DATEADD(NANOSECOND,DATEDIFF(NANOSECOND,CAST('00:00:00.0000000' AS TIME),@T),@D)      The datediff function resulted in an overflow. The number of dateparts   separating two date/time instances is too large. Try to use datediff   with a less precise datepart.   * The overflow can be avoided in Azure SQL Database and SQL Server 2016, using .    SELECT CAST(@D AS DATETIME) + @T       The data types datetime and time are incompatible in the add operator.     SELECT CAST(@D AS DATETIME) + CAST(@T AS DATETIME)      Returns a result but loses precision 2013-10-13 23:59:59.997 How can I make hibernate my desktop in UEFI with Secure boot on.  I used command "sudo pm-hibernate" to make hibernate my desktop but my machine did nothing (my desktop is booted up on UEFI with Secure boot on). But, if I boot my desktop on UEFI with Secure boot off, Hibernation is normal.  Sorry for my English, thanks, Adding shapefile or feature class as layer in ArcGIS Desktop using Python/ArcPy? I would really like to see all of my questions and answers on the profile page, even if some of them were deleted, and I don't have enough rep to see them on the site. (Note that some questions are  after 30 days or 1 year, and the author might be oblivious about what happened.)   , the &quot;deleted recent [questions/answers]&quot; links in one's own user profile now list all respective posts that were deleted in the past 60 days, rather than just those that were originally posted in the last 60 days. , users with the &quot;access to moderator tools&quot; privilege (10k+ on designed sites, 2k+ on beta and non-designed sites) can use the search operator deleted:1 to see all their own deleted posts. , deleted questions and answers that were posted in the past 60 days, can be seen using the &quot;deleted recent questions&quot; and &quot;deleted recent answers&quot; links on the questions and answers tabs (at the bottom of the tab) in your user profile. For older posts: as of 2013-04-23 you can  if you already have a link to them, but they still aren't linked from the user profiles (not even just for you). Nor do you see inbox notifications for comments on them if you come back a few hours later. You have to have thought to bookmark your question, or you have to go digging for it in your browser history. Selecting text in profile activity comments causes unexpected clipping This is a very minor bug I know, but in anyone's profile page, on the Activity or Responses tab, text highlighting is messed up for the Comment and All subcategories. This only seems to happen only in Chrome. I am on Version 31.0.1650.63 (Win 7). It is visibly worse on multiple lines of text.     Steps to repro:   Go to any profile on any Stack Exchange site, and click on Activity tab. Go to All or Comment subcategories. Highlight text.   As a side effect, you can even temporarily dismember the head of all those poor characters. To do this, start from any line, drag mouse left or right, drag up and then back down.    I've bumped into bugs before that turned out to be Chrome problems, so maybe this is just Chrome doing its magic. What files should i put in a logo pack to give to clients? Should I put small, medium and large version of my logo as well as the vector file. Automating the appearance of email addresses as images Publishing pdf manuscripts on the web with emails embedded in the file results in spam.  More generally, I am looking for a way to automate the conversion of a string to an image.  It's quite easy to solve this old problem using  (more ). The trouble is that you need a distinct file and typesetting run, and you end up with unnecessary image files that you cannot delete carelessly lest you also delete non-generated images.  Can you think of a way to do this on the fly? It's understood that people will have to type the email addresses if they need to message you, but that's the point.  More briefly/concretely...  With what can one replace #1  \documentclass{article} \newcommand\showasimage[1]{#1} \begin{document} \showasimage{joe@foo.bar} \end{document}   such that #1 appears as an image?  Edit  It would be really nice if the pdf file remains vectorial. There are $k$ penguins, $k\ge 3$. They are all different heights. How many ways are there to order the penguins in a line, left to right, so that we cannot find any three that are arranged tallest to shortest (in left to right order)? The penguin triples do not have have to be adjacent.  This problem is courtesy of someone I know only as "DaMancha." There is a yes command in unix/linux which basically infinitely prints y to the stdout. What is the point of it, and how is it useful? "happen to be" and "happen to have" - expressions of probability? Based on Logman dictionary:       happen to do something: if you happen to do something, you do it by chance.   for example take a look at these examples:     They happen to be unemployed at the time. I happen to have a degree in computer science.    So based on the definition of the happen to do something, first one means they are probably unemployed at the time. and the second one means I probably have a degree in computer science.     Am I right? Import a module from a relative path What are the light blue lines on my imported objects Can I force a link to open in a specific browser? Permanent xmodmap in Ubuntu 13.04 I cannot make xmodmap run on login in Ubuntu 13.04. I have searched around, including in askubuntu and all answers I found do not work.  I have a file named .Xmodmap in my home folder which contains the desired mappings. If I run it manually it works fine, so there is no error there. In order to make it run on startup, I have tried:     Using various .xinitrc containing one of the following commands:      xmodmap .Xmodmap xmodmap ~/.Xmodmap   /usr/bin/xmodmap /home/NAME/.Xmodmap if [ -s ~/.Xmodmap ]; then xmodmap ~/.Xmodmap fi  Using .Xresources instead of .xinitrc with the same variations. Setting it as a startup application.   None of the above works in Ubuntu 13.04 (64-bit). I also saw a few ideas about globally changing the keyboard mappings, but most of them were not applicable in Ubuntu 13.04 (i.e. the corresponding files did not exist where specified) and I prefer not to touch the global settings anyway. What's the mathematics definition of the F value in Analysis of Variance Table? Suppose I have a linear regression model Y ~ b1*x1 + b2*x2 with the sample data:          x1      x2        y 0  -0.7251 -0.6033  10.2508 1  -1.3148  3.7067  10.3054 2  -1.2818 -5.8136   7.2010 3   0.6154  3.6336  11.2807 4   1.4887 -2.8337  10.6299 5  -2.0224 -0.3931   7.4502 6   0.5419 -1.7807  10.7339 7  -1.0745 -5.0296   5.8734 8   3.2116 -0.4681  11.7184 9   1.6767 -4.6040   9.0145 10 -1.3355 -2.6874   6.5014 11  0.8296  2.6793  11.8295 12 -2.8647  4.2916   7.8414 13  1.8445 -3.3924   9.6520 14 -0.1036  2.4273  11.9766 15  1.0886 -3.5636  10.6023 16 -3.3026 -6.9837   4.9962 17  1.4050 -3.8453  10.4630 18 -0.3111 -1.4278   9.2283 19 -3.5454  2.4960   7.3720   And using the following R code to get the Analysis of Variance Table:  &gt; df &lt;- read.csv('f:/data.csv', header=T, sep=",") &gt; model_All &lt;- lm(y ~ x1 + x2, data=df) &gt; anova(model_All) Analysis of Variance Table  Response: y           Df Sum Sq Mean Sq F value    Pr(&gt;F)     x1         1 44.440  44.440  58.277 6.865e-07 *** x2         1 26.640  26.640  34.934 1.711e-05 *** Residuals 17 12.964   0.763                       --- Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1   And I can calculate the F value of hypothesis test H0： b2=0 via:  &gt; model_Drop2 &lt;- lm(y ~ x1, data=df) &gt; SSR_All = sum(resid(model_All)^2) &gt; SSR_Dp2 = sum(resid(model_Drop2)^2) &gt; F_x2 = ((SSR_Dp2 - SSR_All) / 1) / (SSR_All / (20 - 3)) &gt; F_x2 [1] 34.93434   We can see that F_x2 is equal to F value of x2 in Analysis of Variance Table. However, the value F_x1 calculated as follow is not equal to F value of x1, I can't understand why:  &gt; model_Drop1 &lt;- lm(y ~ x2, data=df) &gt; SSR_Dp1 = sum(resid(model_Drop1)^2) &gt; F_x1 = ((SSR_Dp1 - SSR_All) / 1) / (SSR_All / (20 - 3)) &gt; F_x1 [1] 70.30392   So, what is the mathematics definition of the F value in table?  EDIT The result of the features reversed as commented by @Michael M:  &gt; model_All2 &lt;- lm(y ~ x2 + x1, data=df) &gt; anova(model_All2) Analysis of Variance Table  Response: y           Df Sum Sq Mean Sq F value    Pr(&gt;F)     x2         1 17.468  17.468  22.907 0.0001718 *** x1         1 53.612  53.612  70.304 1.914e-07 *** Residuals 17 12.964   0.763                       --- Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 How can I fix a 404 Error when using a PPA or updating my package lists? Explaining to laypeople why bootstrapping works