extraction

What algorithm does Readability use for extracting text from URLs?

由 这一生的挚爱 提交于 2019-11-27 02:28:50
For a while, I've been trying to find a way of intelligently extracting the "relevant" text from a URL by eliminating the text related to ads and all the other clutter.After several months of researching, I gave it up as a problem that cannot be accurately determined. (I've tried different ways but none were reliable) A week back, I stumbled across Readability - a plugin that converts any URL into readable text. It looks pretty accurate to me. My guess is that they somehow have an algorithm that's smart enough to extract the relevant text. Does anyone know how they do it? Or how I could do it

Extract all bounding boxes using OpenCV Python

由 孤者浪人 提交于 2019-11-27 00:49:43
问题 I have an image that contains more than one bounding box. I need to extract everything that has bounding boxes in them. So far, from this site I've gotten this answer: y = img[by:by+bh, bx:bx+bw] cv2.imwrite(string + '.png', y) It works, however, it only gets one. How should I modify the code? I tried putting it in the loop for contours but it still spews out one image instead of multiple ones. Thank you so much in advance. 回答1: there you go: import cv2 im = cv2.imread('c:/data/ph.jpg') gray

How do you extract a column from a multi-dimensional array?

由 三世轮回 提交于 2019-11-26 23:46:29
问题 Does anybody know how to extract a column from a multi-dimensional array in Python? 回答1: >>> import numpy as np >>> A = np.array([[1,2,3,4],[5,6,7,8]]) >>> A array([[1, 2, 3, 4], [5, 6, 7, 8]]) >>> A[:,2] # returns the third columm array([3, 7]) See also: "numpy.arange" and "reshape" to allocate memory Example: (Allocating a array with shaping of matrix (3x4)) nrows = 3 ncols = 4 my_array = numpy.arange(nrows*ncols, dtype='double') my_array = my_array.reshape(nrows, ncols) 回答2: Could it be

How to extract full url with HtmlAgilityPack - C#

由 回眸只為那壹抹淺笑 提交于 2019-11-26 23:09:48
问题 Alright with the way below it is extracting only referring url like this the extraction code : foreach (HtmlNode link in hdDoc.DocumentNode.SelectNodes("//a[@href]")) { lsLinks.Add(link.Attributes["href"].Value.ToString()); } The url code <a href="Login.aspx">Login</a> The extracted url Login.aspx But i want to get real link what browser parsed like http://www.monstermmorpg.com/Login.aspx I can do it with checking the url whether containing http and if not add the domain value but it may

How to randomly extract FASTA sequences using Python?

由 こ雲淡風輕ζ 提交于 2019-11-26 22:10:14
问题 I have the following sequences which is in a fasta format with sequence header and its nucleotides. How can I randomly extract the sequences. For example I would like to randomly select 2 sequences out of the total sequences. There are tools provided to do so is to extract according to percentage but not the number of sequences. Can anyone help me? A.fasta >chr1:1310706-1310726 GACGGTTTCCGGTTAGTGGAA >chr1:901959-901979 GAGGGCTTTCTGGAGAAGGAG >chr1:983001-983021 GTCCGCTTGCGGGACCTGGGG >chr1

Stroke Width Transform (SWT) implementation (Java, C#…)

由 爱⌒轻易说出口 提交于 2019-11-26 21:59:41
I recently discovered the stroke width transform, as documented in the following research paper: Detecting Text in Natural Scenes with Stroke Width Transform . Boris Epshtein, Yonathan Wexler, and Eyal Ofek. IEEE International Conference on Computer Vision and Pattern Recognition, 2010. The algorithm is intended for detecting and extracting text from natural scenes. However, I could not find any implementation, and from the paper I find it hard to determine all the details regarding the algorithm so I can implement it in practice. Does anyone know if this algorithm is implemented and used in

Extract files from zip file and retain mod date?

由 孤街浪徒 提交于 2019-11-26 20:24:13
问题 I'm trying to extract files from a zip file using Python 2.7.1 (on Windows, fyi) and each of my attempts shows extracted files with Modified Date = time of extraction (which is incorrect). import os,zipfile outDirectory = 'C:\\_TEMP\\' inFile = 'test.zip' fh = open(os.path.join(outDirectory,inFile),'rb') z = zipfile.ZipFile(fh) for name in z.namelist(): z.extract(name,outDirectory) fh.close() I also tried using the .extractall method, with the same results. import os,zipfile outDirectory = 'C

Regular expressions C# - is it possible to extract matches while matching?

由 醉酒当歌 提交于 2019-11-26 14:12:38
问题 Say, I have a string that I need to verify the correct format of; e.g. RR1234566-001 (2 letters, 7 digits, dash, 1 or more digits). I use something like: Regex regex = new Regex(patternString); if (regex.IsMatch(stringToMatch)) { return true; } else { return false; } This works to tell me whether the stringToMatch follows the pattern defined by patternString . What I need though (and I end up extracting these later) are: 123456 and 001 -- i.e. portions of the stringToMatch . Please note that

What algorithm does Readability use for extracting text from URLs?

由 和自甴很熟 提交于 2019-11-26 10:04:52
问题 For a while, I\'ve been trying to find a way of intelligently extracting the \"relevant\" text from a URL by eliminating the text related to ads and all the other clutter.After several months of researching, I gave it up as a problem that cannot be accurately determined. (I\'ve tried different ways but none were reliable) A week back, I stumbled across Readability - a plugin that converts any URL into readable text. It looks pretty accurate to me. My guess is that they somehow have an

How to extract text from a PDF? [closed]

由 风格不统一 提交于 2019-11-26 09:15:02
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . Can anyone recommend a library/API for extracting the text and images from a PDF? We need to be able to get at text that is contained in pre-known regions of the document, so the API will need to give us positional information of each element on the page. We would like that data to be output in xml or json
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