each

pytorch BCELoss和BCEWithLogitsLoss

一世执手 提交于 2019-12-19 04:55:49
BCELoss CLASS torch.nn. BCELoss ( weight=None , size_average=None , reduce=None , reduction='mean' ) 创建一个标准来度量目标和输出之间的二进制交叉熵。 unreduced (i.e. with reduction set to 'none' ) 时该损失描述为: 其中N是批尺寸, 如果 reduction 不是 'none' (默认为 'mean' ), 则: 即,对批次中各样本损失求均值或求和。 其可以用来测量重构误差,例如一个自编码器。 注意目标y应该是0到1之间的数字。 Parameters: weight ( Tensor , optional ) – a manual rescaling weight given to the loss of each batch element. If given, has to be a Tensor of size nbatch . size_average ( bool , optional ) –(已弃用) Deprecated (see reduction ). By default, the losses are averaged over each loss element in the batch. Note that

jQuery Ajax / .each callback, next 'each' firing before ajax completed

五迷三道 提交于 2019-12-18 13:37:16
问题 Hi the below Javascript is called when I submit a form. It first splits a bunch of url's from a text area, it then: 1) Adds lines to a table for each url, and in the last column (the 'status' column) it says "Not Started". 2) Again it loops through each url, first off it makes an ajax call to check on the status (status.php) which will return a percentage from 0 - 100. 3) In the same loop it kicks off the actual process via ajax (process.php), when the process has completed (bearing in the

How to Find Out Last Index of each() in jQuery?

爱⌒轻易说出口 提交于 2019-12-18 10:38:12
问题 I have something like this... $( 'ul li' ).each( function( index ) { $( this ).append( ',' ); } ); I need to know what index will be for last element, so I can do like this... if ( index !== lastIndex ) { $( this ).append( ',' ); } else { $( this ).append( ';' ); } Any ideas, guys? 回答1: var total = $('ul li').length; $('ul li').each(function(index) { if (index === total - 1) { // this is the last one } }); 回答2: var arr = $('.someClass'); arr.each(function(index, item) { var is_last_item =

JQuery append to select with an array

感情迁移 提交于 2019-12-18 09:37:37
问题 very simple but guess what, not for me. I have a comma separated list like this: Option1,Option2,Option3 that I want to append to a <select> so it becomes <select><option>Option1</option><option>Option2</option><option>Option3</option></select> I can "split" the list like this (inside a function that gets the list): var optionsarray = $(this).val().split(','); $(optionsarray).each(function(i){ var seloption = '<option value="'+optionsarray[i]+'">'+optionsarray[i]+'</option>'; }); But now how

Jquery ajax call within an each loop

做~自己de王妃 提交于 2019-12-18 04:38:19
问题 I'm having a problem when using the jquery .each() and .ajax() functions together. I'm using .each() to loop through 5 elements and am performing the .ajax() call for each one. My problem is that I only want the loop to continue when a response has been received from each ajax request. Currently, all 5 elements are being looped, 5 ajax requests being made, then 5 responses being returned. Hers's a simple example: $(".element").each(function() { var id= $(this).find(('txtId').val(); $.ajax({

从混淆矩阵中计算每一类的分类精度,Recall或Sensitivity,Positive predictive value (PPV),speciall----python实现

五迷三道 提交于 2019-12-18 04:05:11
我们接下来使用sklearn.metrics 提供的混淆矩阵的计算 from sklearn.metrics import confusion_matrix #引用方式 y_true = [2, 0, 2, 2, 0, 1] y_pred = [0, 0, 2, 2, 0, 2] confusion_matrix(y_true, y_pred)#官方提供的示例代码 然后就得到了多类别的混淆矩阵,其实多类别和二类别的混淆矩阵只是在计算一些变量的时候复杂 实现代码如下,分别计算 Recall或Sensitivity,Positive predictive value (PPV),speciall,其实这个是改变自https://blog.csdn.net/u012193416/article/details/79454351,但是他错了,导致我前几次都算错了,所以我才写了这一篇更正一下,我也提醒了这位博主。 confusion = confusion_matrix(y_true, y_pred) print(confusion) list_diag = np.diag(confusion) print('list_diag=', list_diag) list_raw_sum = np.sum(confusion, axis=1) print('list_raw_sum=', list

JQuery $.each() JSON array object iteration

霸气de小男生 提交于 2019-12-17 23:31:53
问题 I am having some real difficulty attempting to solve a JQuery $.each() iteration This is my array, limiting results for convenience [{"GROUP_ID":"143", "GROUP_TYPE":"2011 Season", "EVENTS":[ {"EVENT_ID":"374","SHORT_DESC":"Wake Forest"}, {"EVENT_ID":"376","SHORT_DESC":"Yale"}, {"EVENT_ID":"377","SHORT_DESC":"Michigan State"}] }, {"GROUP_ID":"142", "GROUP_TYPE":"2010 Season", "EVENTS":[ {"EVENT_ID":"370","SHORT_DESC":"Duke"}, {"EVENT_ID":"371","SHORT_DESC":"Northwestern"}, {"EVENT_ID":"372",

jQuery looping .each() JSON key/value not working

混江龙づ霸主 提交于 2019-12-17 21:58:34
问题 I am having problems in looping the key/value of JSON by jQuery .each() function Initially I have a JSON like this: json = {"aaa":[ {"id":"1","data":"aaa1data"} ,{"id":"2","data":"aaa2data"} ], "bbb":[ {"id":"3","data":"bbb1data"} ] } And I would like to loop through all the key/value elements inside the JSON (aaa and bbb) and the retrieve the inner JSON arrays for looping again, so I tried $(json).each(function(index,data) { var zzz = data; $(zzz).each(function(index,data)) { //some other

What is the difference between $.each(selector) and $(selector).each()

吃可爱长大的小学妹 提交于 2019-12-17 17:26:37
问题 What is the difference between this: $.each($('#myTable input[name="deleteItem[]"]:checked').do_something()); and this: $('#myTable input[name="deleteItem[]"]:checked').each(function() { do_something }); The html for the table cell that is being selected and acted upon looks like this: <td width="20px"><input type="checkbox" class="chkDeleteItem" name="deleteItem[]" value="' . $rowItem['itemID'] . '" /></td> I've gone over the jQuery documentation, but I still don't understand the difference.

jQuery loop through data() object

可紊 提交于 2019-12-17 15:35:08
问题 Is it possible to loop through a data() object? Suppose this is my code: $('#mydiv').data('bar','lorem'); $('#mydiv').data('foo','ipsum'); $('#mydiv').data('cam','dolores'); How do I loop through this? Can each() be used for this? 回答1: jQuery stores all the data information in the jQuery.cache internal variable. It is possible to get all the data associated with a particular object with this simple but helpful plugin: jQuery.fn.allData = function() { var intID = jQuery.data(this.get(0));