大约有 40,000 项符合查询结果（耗时：0.0504秒） [XML]
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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final static int RECOMMENDER_NUM = 3;
public static void main(String[] args) throws IOException, TasteException {
String file = "datafile/item.csv";
DataModel model = new FileDataModel(new File(file));
UserSimilarity user = new EuclideanDistanceSimilarity(mode...
Is there a good reason to use upper case for SQL keywords? [closed]
... SQL. Examples include in-line queries, programmer documentation, and text strings within the code of another language. The same is not true anywhere near as often for languages like Python or C++; yes, their code does sometimes appear in those places, but it's not routinely done the way it is with ...
Version of SQLite used in Android?
...mory:", null).rawQuery("select sqlite_version() AS sqlite_version", null);
String sqliteVersion = "";
while(cursor.moveToNext()){
sqliteVersion += cursor.getString(0);
}
This is just a piece of quick, dirty code to retrieve the sqlite version. For instance on a HTC Hero with Android 2.1, I get:...
Visual Studio - Resx File default 'internal' to 'public'
...("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
internal Strings() {
}
The derived class:
public class PublicStrings : Strings
{
/// <summary>
/// Public localization Strings.
/// </summary>
public PublicStrings()
{
}
}
...
Split list into smaller lists (split in half)
...6]
B = A[:len(A)//2]
C = A[len(A)//2:]
If you want a function:
def split_list(a_list):
half = len(a_list)//2
return a_list[:half], a_list[half:]
A = [1,2,3,4,5,6]
B, C = split_list(A)
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What's the difference between session.Merge and session.SaveOrUpdate?
...ame="emp_id")
private int id;
@Column(name="emp_name")
private String name;
@Column(name="salary")
private int Salary;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getSalary() {
...
Stretch and scale CSS background
...0; i < images.length; i++) {
var image = images[i],
width = String(image.currentStyle.width);
if (width.indexOf('%') == -1) {
continue;
}
image.origWidth = image.offsetWidth;
image.origHeight = image.offsetHeight;
imgCache.push(image);
c.ieAlpha(imag...
How to use multiple arguments for awk with a shebang (i.e. #!)?
...'s supposed to fail all the time. You could replace it with some gibberish string. Basically, I was looking for a false-condition in awk that would not adversely affect the shell script.
In the shell script, the arbitrary_long_name==0 defines a variable called arbitrary_long_name and sets it equal ...
Preferred Github workflow for updating a pull request after code review
...pull request and push the branch to GitHub. The pull request will automatically be updated with the additional commit.
#2 and #3 are unnecessary. If people want to see only where your branch was merged in (and not the additional commits), they can use git log --first-parent to only view the merge c...
Why is there no logical xor in JavaScript?
...e last value is the result. This result can be anything. Objects, numbers, strings .. whatever!
This makes it possible to write things like
image = image || new Image(); // default to a new Image
or
src = image && image.src; // only read out src if we have an image
But the truth value...