selections from a numb Er of mixes I tried. It ' s also tempting to create mixes of animal classes to generate some new kind of monster breeds, but most of the time thi s doesn ' t work so well. Here's some I tried though, a mix of a Scotch terrier and a tarantula, and a mix of a bee and a gibbon:A slightly spidery looking Scotch Terrier (left) and a slightly gibbon-looking bee (right)Another fun thing we can does when generatinge images are to does the gradient
random gradient rise algorithm:# 随机梯度上升算法def stocGradAscent(data, label): m,n = shape(data) 0.01 w = ones(n) forin range(m): h = sigmoid(sum(data[i]) * w) error = label[i] - h w = w + alpha * error *data[i] return wwNew = stocGradAscent(data, label)plotBestSplit(wNew)Results:It can be seen that the random gradient ascending algorithm is divided into many sample points, and its classification effect is not as good as the normal gradient ascending algorithm.The
set value, according to the trend of temperature changes, the premonition temperature will exceed the set value, there is overshoot. The angle of the potentiometer is then adjusted to reduce the heating current in advance. This is equivalent to when a soldier shoots a distant moving target, taking into account the time of the bullet movement, which requires a certain amount of advance. Figure 2 Step response curveFigure 2, C (∞) is the steady-state value of the controlled volume C (t) or the ex
systems. It does not inherit from the qobject like Qtimer, so it does not have the ability to use a signal slot,But we can use it to repeatedly send Qtimerevent events for Qobject and its derived class objects, by overloading TimerEvent (qtimerevent*) to capture the event.Wigglywidget.cpp:#include We must remember when we use QT to draw graphics, like drawrect () or something, we enter the position of the coordinates is the image of the upper left corner of the location, simply refers to where
the energy and power to find the regression coefficients.
5.2.2 Training algorithm: Using gradient rise to find the best parametersThere are 100 sample points in Figure 5-3, each with two numeric characteristics: X1, X2. On this dataset, we will find the best regression coefficients by using the gradient rise method , which is the best parameter to fit the logistics regression model.The pseudo-code for the gradient rise method is as follows:Each regression coefficient is initialized to 1
Suppose a sorted array is rotated on some pivot unknown to you beforehand.(i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2 ).You is given a target value to search. If found in the array is return its index, otherwise return-1.Assume no duplicate exists in the array.Analysis:Given an ordered array of rotations, the so-called rotation is to divide the array into two parts at some point in the original ordered array, translating the latter part to the front.For example: 0 1 2 4 5 6 7,Separating from
SMO (Sequence minimum optimization)Introduction: Coordinate Ascent methodThe goals are:Coordinate ascent algorithm:That is, only one dimension is changed at a time, and the optimal value of the dimension is obtained.Example diagram:The direction of parameter convergence is parallel to the axis.SMO algorithm:Because one of the constraints we're dealing with is:So it is not possible to change only one of the
that this law is not applicable in any market situation, but only in the Span style= "color: #ff0000;" > in the trend of consolidation or ascent has a good indication, and in a downtrend, the breakdown of the bottom support line is not a real buy point. In the downtrend, the Yellow Line (down is the was penetrated, the stock price still fell. If you open a position rashly, you will inevitably suffer losses. The author after a long time to con
gravity, i.e. F floating =g. As described above, you can see the answer to the second question of the 22nd question in the seventh chapter of Third Day physics, 06--07, Qixia Eight, in the next semester of the year. The question mark is: "Xiao Ming to tighten the lid of the small empty bottle into the water after a certain depth to let go, small empty bottle floating and eventually static in the process of water, how the size of buoyancy changes? "The correct answer to this question mark is:" B
(specmode = measurespec. exactly) {// we were told how big to be result = specsize;} else {// measure the text // calculate the size of this view: size = left and right space size + String size result = (INT) mtextpaint. measuretext (mtext) + getpaddingleft () + getpaddingright (); If (specmode = measurespec. at_most) {// respect at_most value if that was what is called for by measurespec // In the at_most mode, that is, in the maximum mode, the size can only be smaller than or equal to the spe
of the data, and obtain the expressions W and B respectively. In the formula, calculate the maximum value of the brought-in formula. The entire derivation process is similar to the previous model. Here, only the final result is written as follows:
At this point, we found that there are no parameters, and the only difference from the previous model is that there are additional constraints. It should be noted that the evaluation formula of B has also changed, and the change result is introduced
Key functions of CoreText
The CoreText class is really powerful.
1. This function is used to deal with the inconsistency of row width. Some rows cannot occupy the whole line due to some internal punctuation marks, resulting in uneven row width. This function is dedicated to this problem.
CTLineRef _ nullable CTLineCreateJustifiedLine (
CTLineRef line,
CGFloat justificationFactor,
Double justificationWidth) CT_AVAILABLE (10_5, 3_2 );
2. Obtain the x coordinates of characters at an index positio
Java generates an image and java generates an image.
Public class CreateImage {public static void main (String [] args) throws Exception {int width = 100; int height = 100; String s = "hello "; file file = new File ("/Users/tengxin/Pictures/image.jpg"); Font font = new Font ("Serif", Font. BOLD, 10); BufferedImage bi = new BufferedImage (width, height, BufferedImage. TYPE_INT_RGB); Graphics2D g2 = (Graphics2D) bi. getGraphics (); g2.setBackground (Color. WHITE); g2.clearRect (0, 0, width, height
From: http://www.cnblogs.com/lky-mily/archive/2012/09/22/2697858.html
It is easy to center horizontally
First set paint. settextalign (paint. Align. Center)
This ensures the center of the horizontal direction.
Assume that the width of the box is width.
Set the X coordinate to width/2 to center the text.
Vertical center is not a simple height/2
A fontmetrics object is required.
When using the draw. Text method, the Y coordinate we set is actually the location of the baseline of the English char
Learn about the Android drawing or custom view of the classmates, all know the canvas class,Paint class and so on . Take a look at the description of P aint today. First look at the definition of the official website:The Paint class holds the style and color information about what to draw geometries, text and bitmaps.translation: P the Aint class has information about how to draw geometry, text, bitmap colors, and styles. The Android system provides an API for setting brush properties, and nex
multiple vectors, which, though more powerful, must be similar or lose the meaning of the mapping.B: Learning Nonlinear SVM model, The problem translates to: C: Nuclear technologyD:mercer theorem 2: Soft Interval The previous SVM formula can only construct a decision boundary without errors, and with soft intervals, we can "forgive" some of the existence of errors. To avoid the effects of some noise, we think that B1 is more suitable as a classification super plane than B2.A: Relaxation varia
]/rxd[3:0], where the reference clock drops along the txd[7:4]/rxd[7:4 of the sending Gmii interface. The RGMII is compatible with the 100Mbps and 10Mbps two rates, at which point the reference clock rate is 25MHz and 2.5MHz, respectively.
Figure 2 Rgmii interface
The tx_en signal line transmits tx_en and tx_er two kinds of information, in the tx_clk of the ascent along the sending Tx_en, the descent along the sending tx_er; Similarly, RX_DV signal l
polarity is low, the Mosi and MISO outputs in the clock (SCK) fall along effectively (as shown in Figure 3).Figure 3. SPI sequence diagram with clock polarity of low level and clock phase 1 o'clockIf the clock polarity is high, these outputs are valid in the ascent of the SCK (as shown in Figure 4).Figure 4. SPI sequence diagram with clock polarity of high level and clock phase 1 o'clock
In the engineering generally will use the Cpol to represent th
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