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Questions tagged [internet]

Global system of interconnected computer networks serving billions of users worldwide.

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Implementing Principal Component Analysis in Azure ML Studio [closed]

After applying Principal Component Analysis PCA to my data set in order to achieve better model accuracy. The 13 features dimensions, I am reducing it to 10 features using PCA. Everything is fine till ...
Rakshit Siddalingappa's user avatar
2 votes
2 answers
24 views

Online Data Bank [closed]

Is it possible to find an online data bank? I mean a site that contains many data observations for different types of data, just ready to analyze. Thank you in advance.
Nizar's user avatar
  • 867
0 votes
2 answers
136 views

Econometrics online learning course [closed]

i would kindly like to ask you for recommendations regarding introductory, but more importantly advanced online econometrics courses (theory as well as applied, preferably in R). I would be most ...
1 vote
1 answer
479 views

Is data observed from the internet counted as primary data?

I need to find primary data (2 variable) to conduct a research about correlation. Are data that I observed from the internet (example: from youtube.com/amazon.com) counted as primary data?
Steven Steven's user avatar
3 votes
0 answers
99 views

What are good sites or blogs for statistical analysis case studies?

I'm NOT looking for articles that focus on presenting R/Python libraries or how-tos on new/cool/advanced techniques or "data science". I AM looking for articles that show how classical, established ...
0 votes
0 answers
31 views

Web Based Survey Sampling method

I am doing a web based research with target audience as general public. I am a student and so due to limited resource, i basically did snowball sampling. I approached all those whom i knew, some ...
user239694's user avatar
1 vote
0 answers
60 views

Web Content Partial matching algorithm suggestions?

I am trying to find a word or set of words or a similar word in the new web page scraped from publicly available sources to answer a question. I have a small list of keywords against which I would ...
user338558's user avatar
1 vote
0 answers
233 views

Funnel Analysis using Logistic Regression?

A lot of web-based companies are obsessed with funnel analysis, that is, how the number of people who visit a given page of their site changes as a function of the actions the people had to take to ...
jon_simon's user avatar
  • 2,049
2 votes
1 answer
692 views

Comparing supervised text classification algorithms with unlabeled documents from web

Working with the unlabeled documents from web for supervised text classification, even though the problem settings dictates using semi-supervised learning, I aim to compare several different ...
Mohammadreza's user avatar
0 votes
1 answer
132 views

Using stream of page views on a website to detect anomaly or bot-like behavior

I am looking at clickstream data - sequence of page visits of a user in a website. I am trying to identify anomalies in a session that could be related to bots. To do so I am looking at a user's ...
EitanT's user avatar
  • 121
4 votes
1 answer
1k views

Is Machine Learning viable for Extracting product Information from webpages?

I have a task to extract product information from a certain set of websites for price analysis. The product group I'm trying to harvest data is well defined, I could easily provide a set with all the ...
Guarita's user avatar
  • 43
4 votes
1 answer
449 views

Controlling for biased audiences in online surveys

For a long time I have been meaning to set up a bunch of online surveys asking a whole range of social questions and publish the results. I am well aware that there are various difficulties to ...
Robin Winslow's user avatar
0 votes
1 answer
145 views

Handling gaps in statistics

For a web application we are building I am supposed to overhaul our statistic collection service. Basically we are collecting simple statistics such as positive comments, negative comments, views, ...
user avatar
1 vote
0 answers
236 views

How to data mine google for most popular things out of a set?

Let's say I want to get the list of the top 5000 most searched biomolecules on google - how would I approach such a problem? One possible solution is to fetch the whole pubchem/pdb database and run ...
praznin's user avatar
  • 81
8 votes
2 answers
1k views

Why is a lognormal distribution a good fit for server response times?

I found out that webserver response times are typically modeled as coming from a lognormal distribution here. What I don't quite get is why this is the case! In particular, Wikipedia states that a ...
maliky0_o's user avatar
  • 223
0 votes
2 answers
144 views

What is the volume of visits required in a test A/B?

I have a client that has a web site, he want my to help improve it's conversion rate. I am currently planning an A/B test, on the service page, testing the form. Number estimated of views on one ...
Mario Muñoz's user avatar
1 vote
2 answers
382 views

Online Panel For Survey - Can It Be Representative?

I am thinking of using a company that has an online panel to recruit participants for a questionnaire study. Because the demographics (age, gender, region etc) of the entire population is known (...
CakeNRun's user avatar
1 vote
1 answer
148 views

How to represent website as a fixed size vector?

Generally speaking, how to transform a hierarchical tree structure into a fixed size vector? I have a set (tens of thousands) of websites as my input data. Each website is represented by HTML ...
Marek's user avatar
  • 435
0 votes
0 answers
919 views

How to measure distance between two elements in a web page

Suppose we want to measure how closely relevant is one word or phrase to another in a webpage, this can be easily seen by eyes whether they are near. But in an HTML document it could be tricky to ...
dresden's user avatar
  • 101
1 vote
0 answers
39 views

Estimating distribution of traffic across all Web pages

The web is estimated to have approx 5 billion web pages ( http://www.worldwidewebsize.com/ ). How would you go about estimating a CDF to know how many pages are required that make up, say, 90% of ...
SRobertJames's user avatar
1 vote
1 answer
155 views

Non-differentiation

I'm trying to assess the level of non-differentiation for a web survey I am doing. It features six pages of several Likert items on each page with a 6 point scale, followed by a seventh page of ...
spindoctor's user avatar
7 votes
2 answers
1k views

What could be a statistical test for comparing funnel data before and after important changes?

I have some funnel data from a website I manage. After some time I did some improvement on a multi-step purchase process. I wonder if it's possible to formulate a test that with statistical ...
fstab's user avatar
  • 918
0 votes
1 answer
399 views

Can I learn SAS online? [closed]

I'll complete my Master's degree in a year and I was thinking of learning SAS as I've heard it gives you an edge over other candidates while being recruited. Could you tell me if I can learn it online ...
Kingstat's user avatar
  • 373
2 votes
1 answer
76 views

For a research project I'm trying to estimate how many videos currently exist on Youtube

Official stats on how many videos (rather than how many hours or what volume of data) seem quite hard to come by. My current idea is something like this: A youtube URL is like: http://www.youtube....
nowaycomputer's user avatar
3 votes
2 answers
108 views

Rates, underlying distributions, and measuring things

When comparing two metrics, say visitors and time spent on a website, by just taking the ratio (time on site)/(visitors) can this be misleading? And if so how can we describe this problem ...
Brent Sitterly's user avatar
1 vote
0 answers
1k views

How to track term prevalence on the web over time?

What is the correct way to track the prevalence of a specific term for each year over several years? The goal is a bachelor thesis in media sciences about the trend sport "Speedminton". In order to ...
Konrad Höffner's user avatar
4 votes
1 answer
231 views

Identifying a minimum time on web page as proxy for successful search outcome

Given a correlation between two sequences of numbers, I need to find to what point in one sequence the correlation is strongest. Here's why: I'm tracking large numbers of pages in a knowledge base, ...
Joe Pairman's user avatar
1 vote
0 answers
30 views

I need a calculator that uses a contigency table of 11x6 [duplicate]

I need a calculator that uses a contigency table of 11x6. Anyone knows where I can find a calculator for my case? Thanks in advance.
user21826's user avatar
3 votes
1 answer
4k views

How to Calculate a Z-Score from Power Log Distributions

Please forgive me if the question is non-sensical as I only have a elementary knowledge of statistics, and I have no idea where to start. I want to perform an analysis of some web analytics ...
eywu's user avatar
  • 83
4 votes
2 answers
327 views

Testing significance of a data point against an data set

Background I am currently testing conversions on a web page and would like to test if the changes I made yesterday produced a significant change in conversions. The Data Set For each day I test, I ...
Hzmy's user avatar
  • 141
5 votes
2 answers
224 views

Estimating demographics from internet activity

I'm looking for research papers on estimating demographic information (age, wealth, location, gender etc.) out of internet activities (preferably social network activity or browser history). Where ...
Enno Shioji's user avatar
14 votes
1 answer
2k views

Do unique visitors to a website follow a power law?

Suppose I have an ordered vector where the first element is the number of visits to a website in a given period of time by the unique IP with the highest number of visits, the second element is the ...
Jon Smark's user avatar
  • 245
3 votes
3 answers
790 views

Simple extrapolation of web traffic

I have the following data for web traffic in Excel June 88,147 July 111,839 August 93,148 September 93,069 October 101,881 November 97,345 I can do a chart with a trend line and a linear trend ...
CodeMonkey's user avatar
75 votes
6 answers
10k views

Model for predicting number of Youtube views of Gangnam Style

PSY's music video "Gangnam style" is popular, after a little more than 2 months it has about 540 million viewers. I learned this from my preteen children at dinner last week and soon the discussion ...
FredrikD's user avatar
  • 853
3 votes
1 answer
2k views

any alternative to kaggle for data mining & analysis competitions and training? [closed]

Are there any alternative to www.kaggle.com to test abilities for data mining? Or how can I find my own projects to test myself on data mining projects? Kaggle is a data mining community that ...
erogol's user avatar
  • 1,677
4 votes
4 answers
2k views

High-Frequency Time-Series Forecast With A Lower Bound

I am helping a friend with a data project. He's interested in building a canary-in-the-coal-mine alert system for his website which tells him when the number of users dips below some critical lower ...
dimitriy's user avatar
  • 35.9k
20 votes
2 answers
8k views

What distribution is most commonly used to model server response time?

I have a servlet-based application wherein I measure the time taken to complete each request to that servlet. I already compute simple statistics like the mean and maximum; I'd like to produce some ...
Sean Owen's user avatar
  • 330
8 votes
2 answers
3k views

Math behind multivariate testing for website optimization

I am looking for theoretical resources (books, tutorials, etc.) to learn about making sound statistical inferences given (plenty of) multivariate website conversion data. I'm after the math involved, ...
bloodcell's user avatar
3 votes
4 answers
7k views

Is an online chi square calculator available for larger tables?

I am looking for an online Chi square calculator. I can see there are many for 2x2 tables. I am looking for an online calculator which can accommodate dimensions beyond 2x2.
1 vote
0 answers
470 views

Calculate peak concurrent users on a website

I am looking at setting up some website load testing scripts and need some help in finding a formula to estimate how many concurrent users are browsing a website at peak times, based on common metrics ...
TimS's user avatar
  • 111
5 votes
1 answer
196 views

Can you recommend an online survey platform for 5k+ participants? [closed]

I am planning to perform an online behavioral survey across a nationwide sample, and I expect several thousand responses. I expect to have not that many questions (perhaps 3 pages, 8 qs each), ...
patrickmdnet's user avatar
8 votes
4 answers
689 views

Internet statistics resources suitable for psychology students doing research

I am working on a new webpage for my part-time job as a methodological/statistical consultant for (psychology) students at my university. On this website I would like to place several links to online ...
11 votes
6 answers
26k views

Is there a site to post my survey to so I can get a sample representative of the population?

This is only for my high school senior project, so it doesn't have to be perfect. I'm doing a project on global warming, and I want to survey people for their opinions. I know that if I use a ...
George's user avatar
  • 113