book | RavenDB Book - To create the build , run
kandi X-RAY | book Summary
kandi X-RAY | book Summary
To create the build, run .\build.ps1 and then look in the Output directory. Create *.mobi file for Amazon Kindle.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of book
book Key Features
book Examples and Code Snippets
const isEmpty = val => val == null || !(Object.keys(val) || val).length;
isEmpty([]); // true
isEmpty({}); // true
isEmpty(''); // true
isEmpty([1, 2]); // false
isEmpty({ a: 1, b: 2 }); // false
isEmpty('text'); // false
isEmpty(123); // true -
const geometricProgression = (end, start = 1, step = 2) =>
Array.from({
length: Math.floor(Math.log(end / start) / Math.log(step)) + 1,
}).map((_, i) => start * step ** i);
geometricProgression(256); // [1, 2, 4, 8, 16, 32, 64, 128, 2
const includesAny = (arr, values) => values.some(v => arr.includes(v));
includesAny([1, 2, 3, 4], [2, 9]); // true
includesAny([1, 2, 3, 4], [8, 9]); // false
public void update(Book book) throws BookNotFoundException, VersionMismatchException {
if (!collection.containsKey(book.getId())) {
throw new BookNotFoundException("Not found book with id: " + book.getId());
}
var latestBook = coll
public void bookRoom(int roomNumber) throws Exception {
var room = hotelDao.getById(roomNumber);
if (room.isEmpty()) {
throw new Exception("Room number: " + roomNumber + " does not exist");
} else {
if (room.get().isBooked()
@Override
public Book getBook(String title) {
Book bookDTo;
try (var session = sessionFactory.openSession()) {
var sqlQuery = session.createSQLQuery("SELECT b.title as \"title\","
+ " b.price as \"price\"" + " FROM Book b wh
Community Discussions
Trending Discussions on book
QUESTION
haskell-language-server is giving me some hints on how to reduce code length, but while I'm learning I would like to disable this hints temporary so I can work on examples from books without the annoying hints polluting the editor. I still want error report, just disable the hints
Here is an example
...ANSWER
Answered 2021-Jun-16 at 04:03EDIT: @JonPurdy mentioned (you should read the great comment bellow) that Hlint now supports plain comments like this too:
QUESTION
ANSWER
Answered 2021-Jun-16 at 01:14The difference in behaviour can be accounted for by this behaviour, described in (for instance) the following note in ECMAScript 2022 Language Specification sect 14.3.2.1
:
NOTE: If a VariableDeclaration is nested within a with statement and the BindingIdentifier in the VariableDeclaration is the same as a property name of the binding object of the with statement's object Environment Record, then step 5 will assign value to the property instead of assigning to the VariableEnvironment binding of the Identifier.
In the first case:
QUESTION
I would like to extract the definitions from the book The Navajo Language: A Grammar and Colloquial Dictionary by Young and Morgan. They look like this (very blurry):
I tried running it through the Google Cloud Vision API, and got decent results, but it doesn't know what to do with these "special" letters with accent marks on them, or the curls and lines on/through them. And because of the blurryness (there are no alternative sources of the PDF), it gets a lot of them wrong. So I'm thinking of doing it from scratch in Tesseract. Note the term is bold and the definition is not bold.
How can I use Node.js and Tesseract to get basically an array of JSON objects sort of like this:
...ANSWER
Answered 2021-Jun-15 at 20:17Tesseract takes a lang
variable that you can expand to include different languages if they're installed. I've used the UB Mannheim (https://github.com/UB-Mannheim/tesseract/wiki) installation which includes a ton of languages supported.
To get better and more accurate results, the best thing to do is to process the image before handing it to Tesseract. Set a white/black threshold so that you have black text on white background with no shading. I'm not sure how to do this in Node, but I've done it with Python's OpenCV library.
If that font doesn't get you decent results with the out of the box, then you'll want to train your own, yes. This blog post walks through the process in great detail: https://towardsdatascience.com/simple-ocr-with-tesseract-a4341e4564b6. It revolves around using the jTessBoxEditor to hand-label the objects detected in the images you're using.
Edit: In brief, the process to train your own:
- Install jTessBoxEditor (https://sourceforge.net/projects/vietocr/files/jTessBoxEditor/). Requires Java Runtime installed as well.
- Collect your training images. They want to be .tiffs. I found I got fairly accurate results with not a whole lot of images that had a good sample of all the characters I wanted to detect. Maybe 30/40 images. It's tedious, so you don't want to do TOO many, but need enough in order to get a good sampling.
- Use jTessBoxEditor to merge all the images into a single .tiff
- Create a training label file (.box)j. This is done with Tesseract itself.
tesseract your_language.font.exp0.tif your_language.font.exp0 makebox
- Now you can open the box file in jTessBoxEditor and you'll see how/where it detected the characters. Bounding boxes and what character it saw. The tedious part: Hand fix all the bounding boxes and characters to accurately represent what is in the images. Not joking, it's tedious. Slap some tv episodes up and just churn through it.
- Train the tesseract model itself
- save a file:
font_properties
who's content isfont 0 0 0 0 0
- run the following commands:
tesseract num.font.exp0.tif font_name.font.exp0 nobatch box.train
unicharset_extractor font_name.font.exp0.box
shapeclustering -F font_properties -U unicharset -O font_name.unicharset font_name.font.exp0.tr
mftraining -F font_properties -U unicharset -O font_name.unicharset font_name.font.exp0.tr
cntraining font_name.font.exp0.tr
You should, in there close to the end see some output that looks like this:
Master shape_table:Number of shapes = 10 max unichars = 1 number with multiple unichars = 0
That number of shapes should roughly be the number of characters present in all the image files you've provided.
If it went well, you should have 4 files created: inttemp
normproto
pffmtable
shapetable
. Rename them all with the prefix of your_language
from before. So e.g. your_language.inttemp
etc.
Then run:
combine_tessdata your_language
The file: your_language.traineddata
is the model. Copy that into your Tesseract's data folder. On Windows, it'll be like: C:\Program Files x86\tesseract\4.0\tessdata
and on Linux it's probably something like /usr/shared/tesseract/4.0/tessdata
.
Then when you run Tesseract, you'll pass the lang=your_language
. I found best results when I still passed an existing language as well, so like for my stuff it was still English I was grabbing, just funny fonts. So I still wanted the English as well, so I'd pass: lang=your_language+eng
.
QUESTION
I have the following output from an API:
...ANSWER
Answered 2021-Jun-15 at 19:31I don't see what the id
column is needed for.
So see if you can work with this:
QUESTION
customer_data.json (loaded as customer_data)
...ANSWER
Answered 2021-Jun-15 at 17:32I am trying to go through each of the books in
holds
usingholds[0]
,holds[1]
etc and test to see if the title is equal to a book title
Translated almost literally to Python:
QUESTION
I need to get the size of bits used in one Integer variable.
like this:
...ANSWER
Answered 2021-May-18 at 21:30This works:
QUESTION
Hey just doing some exercises in c, one is saying to replace tabs in the input string with any other characters , i restrict myself to only using getchar()
, no gets() fgets()
etc..., as my learning book didn't catch it yet, so i tried to not break the flow, the code below just printf()
the same line it receives, can you please examine why ?
ANSWER
Answered 2021-Jun-15 at 16:33c
, which is used inc != '\n'
, is not initialized at first. Its initial value is indeterminate and using is value without initializng invokes undefined behavior.- You are checking
line[i] != '\0'
, but you never assigned'\0'
toline
unless'\0'
is read from the stream. - You should initialize
i
before the second loop and updatei
during the second loop. - Return values of
getchar()
should be assigned toint
to distinguish betweenEOF
and an valid character. - You should perform index check not to cause buffer overrun.
Fixed code:
QUESTION
I'm trying to make a relation between my Book entity and a list of languages that I retrieve through a service. In my database, each book has a: ID, TITLE, CATEGORY_ID (FK), LANG_ID
Book.java:
...ANSWER
Answered 2021-Jun-15 at 12:54First of all, did you consider to store language in your database? I mean language are mostly the same, doesn't change too often, you can also store in a properties file and read them at runtime to use them later.
Anyway, I think you should:
- first get from external system languages
- store in variable / in memory cache ( like a Map where you can store id and name )
- read your data from database
- for each row you do
- read book language id, read the cache, get out data you need
- for each row you do
If you can't change model, just use a dto with your entity and the language and you're fine
QUESTION
I am looking for a more elegant/efficient way of finding the min/max value of every column from a numpy array within a dictionary.
For example:
...ANSWER
Answered 2021-Jun-15 at 13:09You can concatenate your individual lists into a single Numpy array and then just use min
and max
along the desired axis:
QUESTION
Running this code to normalize json:
...ANSWER
Answered 2021-Jun-15 at 10:59This is not consumed by json_normalize
directly (after my tries). Since the number of BUY
and SELL
are different, and these record do not neccessarily should match each other (located on a same row), suggestions is to split into two dataframes and then concatenate.
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