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1  Other / Off-topic / What are some great but lesser known films or shows on Netflix? (Jan 2018) on: January 02, 2018, 02:41:31 AM
I need new things to watch.  Mostly looking for things people might pass over.
2  Alternate cryptocurrencies / Altcoin Discussion / What do people think of SPARC? on: December 24, 2017, 05:39:16 AM
Ok so SPARC is having their presale. 

They are a token which is already in use to purchase computational power on the BOINC network and used by the Gridcoin pools even.  It lets people rent out spare resources for distributed computing and now the BOINC network is the largest computer used for a number of scientific computing tasks. 

They are even offering a hundred percent bonus. 

But the ANN thread is quiet, the Telegram quiet, and they have barely raised anything at all. 

Is this a 'flying under the radar' potential fly me to the moon coin?  Or is it just a dud?

I just can't tell.
3  Other / Meta / Can someone tell me why this post was 'deleted' by a moderator? on: December 12, 2017, 05:31:33 PM
Hello.  Lately I have been trying to find meaningful and constructive ways of contributing to this forum to meet signature requirements.  I am not a fan of 'shitposting' which I will refer to as 'quickposting' to keep things clean.

So one of the things I did was start a thread discussing word clouds as a means of identifying different types of forum members.  Someone asked about what my goals were so I made a couple posts over a period of time.
Note that I actually have a graduate degree in computer science with a focus on data mining, natural language processing, and data visualization.  Modeling things such as shilling within product review sets is what I do to the point of actually being published.


This one was removed

Quote
"Now I have been focused on the 'shilling' side of shitposting.  But shitposting also includes low information posts just for campaign requirements.

If we want to model and detect different types of shitposts we should define 'shitpost' and its subtypes.

Now it might actually be easier to classify a 'shitposter' rather than specific shitposts because there is more information there as you have an entire post history.

Lots of relevant features we could use.  Semantic feature such as 'campaign', rhetorical features such as asking or offering, emotional features and features of sentiment, writing style features such as sentence length or number of adjectives and so on.  Everything from topic modeling to opinion mining could be useful.

If I could collect the data we could begin the data mining process which is fortunately mostly automated.

Oh and is there a good synonym for 'shitpost' and 'shitposter'?  My typing mouth feels dirty."

So I was thinking 'maybe it was because I responded to my own thread' but several other posts I made were removed by this unnamed moderator including ones which were by themselves, required research, and were constructive.  The hilarious thing is posts I actually would label as 'quickposts' were not.  So yeah, what does someone have against me?  I am putting incredible effort in finding constructive ways to meet campaign requirements.
4  Other / Meta / Larger word clouds. Can we guess who is the bounty hunter and who is the miner? on: December 12, 2017, 12:57:58 AM
This one creates larger word clouds.  Each consists of the texts for twenty posts.  Can you guess which one is more likely to be bounty hunters and which is the miner? Wink  

Candidate One


Candidate Two
5  Other / Meta / Turning your post history into word clouds! on: December 09, 2017, 09:49:12 AM
Wrote a little script that generates word clouds for a user's last 25 posts.

Each post gets a word cloud but I could easily change it to generate one for each week, month, whatever.

This is a tiny part of a hopefull larger project approaching shilling analysis and detection.  Later versions may calculate and make use of sentiment.

Here are my last 25!  If you want me to do one send your user id.  Any requests for special formatting or additional features may or may not be granted so feel free to ask.  The python script is included at the end of this post so you can do it yourself as well though I just wrote it so like most code it could use some refactoring.



Code:
import requests
import matplotlib.pyplot as plt
from wordcloud import WordCloud
from bs4 import BeautifulSoup
import time

def processPostsPage(pageNumber, userId):
    
    #grab the next page of posts
    pageUrl = "https://bitcointalk.org/index.php?action=profile;u=" + str(userId) + ";sa=showPosts;start="+str(pageNumber*20)
    response = requests.get(pageUrl)
    data = response.content  
    
    #grab divs with the 'post' attribute
    soup = BeautifulSoup(data)
    postsOnPage = soup.findAll("div", { "class" : "post" })
    
    #return an array of word clouds
    wordCloudsForPageOfPosts = []
    
    count = 1;
    
    stopwords = ["post","posts"]
    
    #convert posts to wordcloud images
    for div in postsOnPage:
    
        text = div.get_text()
        
        #remove the stopwords with a little magic
        text = " ".join([word for word in text.split() if word not in stopwords])
        
        nextCloud = WordCloud().generate(text)
        
        wordCloudsForPageOfPosts.append(nextCloud)
        
        count = count+1
        
    return wordCloudsForPageOfPosts
 

def buildPlot(userId, numberOfPosts):
    width = 25
    height = 15
    fig = plt.figure(figsize=(width,height))

    
    currentPage = 1
    
    count = 0
    
    while(count <= numberOfPosts):
        
        #sleep in between grabbing pages of posts for a stress free bitcointalk crawl
        time.sleep(1)
        
        #grab the clouds for that page
        clouds = processPostsPage(currentPage,userId)
        
        #display the clouds until we reach the right number
        for cloud in clouds:
            count = count+1
            if(count < numberOfPosts):
                a = fig.add_subplot(5,5,count)
                
                #hack to delete tick marks
                for a in fig.get_axes():
                    a.set_xticks([])
                    a.set_yticks([])
                a.set_title("Post " + str(count))
                plt.imshow(cloud)
            
            
userID = 249526
numberOfPostToDisplay = 25
buildPlot(userID, numberOfPostToDisplay)
plt.show()
6  Other / Meta / Signature campaigns and long sentences on: December 06, 2017, 06:50:46 PM
Does anyone else find they are speaking in longer sentences and making longer posts since taking part in signature campaigns?

Many require 80 character posts so I find I have been writing posts which are longer than I normally would.

I would love to analyze user data involving posts before and after joining a campaign to test this hypothesis. (would also be neat to plot post sentiment)
7  Alternate cryptocurrencies / Altcoin Discussion / Recommend a good open source coin to study for educational purposes. on: December 04, 2017, 12:51:23 AM
I am learning coin development and want a well designed and readable code base to study.  Many open source coin projects are poorly designed (from a software engineering standpoint) with code that is not 'self commenting'.

I want to make my own wallet for some coin as practice so easy to study wallet code would be nice.  It doesn't have to use the QT framework.  

8  Alternate cryptocurrencies / Altcoin Discussion / How does Ethereum deal with race conditions? on: November 30, 2017, 05:38:15 PM
I am curious how Ethereum deals with race conditions.  

For example take this code:

function () payable {
       uint valueToPass = safeMath.div(msg.value,10**13);
       if (balances[ownerAddress] >= valueToPass && valueToPass > 0) {
           balances[msg.sender] = safeMath.add(balances[msg.sender],valueToPass);
           balances[ownerAddress] = safeMath.sub(balances[ownerAddress],valueToPass);

           Transfer(ownerAddress, msg.sender, valueToPass);
       }
   }

It increases the balance of the sender before decreasing the balance of the recipient. What happens if multiple calls to payable are made simultaneously with the same addresses?  Could it possibly allow something like double spend attacks?

Does Ethereum use semaphores such as mutexes?  How do they prevent race conditions?  
9  Alternate cryptocurrencies / Altcoin Discussion / What would the pros and cons of this anti-pump mechanism? on: November 26, 2017, 03:26:56 PM

Could we create a smart token which could lock trading if a pump was somehow detected?  Maybe create a max allowed up/down movement for any given time period?

What would the pros and cons of this be?
10  Alternate cryptocurrencies / Altcoin Discussion / Which language processing / data visualization project idea should I go with? on: November 23, 2017, 04:38:52 PM
Hello Bitcointalk.

I just finished that damned grad degree and since I am not currently working have a lot of time on my hands which I want to use for projects.

So which do you think I should go with?

1.  Move 'visualization of shilling' from a proof of concept using toy data to actual analysis of bitcointalk threads (uses sentiment analysis to show divergence of review sentiment).

2.  Word cloud histories of a 'shills' which combine word clouds with sentiment to show patterns of shill over time (this one will be neat once finished).

3.  Predicting if thread is from a forum holding signature campaigns or not based on various features such as post frequency, length, content, etc.

4.  Go back to feature generation for ICO success prediction which I started but did not finish?

Any others??  Cheesy

Happy Thanksgiving!  While I still deal with depression and mental health and unemployment shit I am so grateful to be alive with a loving family.

It's either that or another Kaggle contest.
11  Alternate cryptocurrencies / Altcoin Discussion / Moral pros and cons of joining signature campaigns. on: November 23, 2017, 03:48:43 PM
Lately I have been struggling with the idea that I might inadvertently promote a scam, either total scam or a project with little development effort.

I thought about quitting signature campaigns altogether but can still think of some pros.

If a person does their investigative work then the signature campaigns will draw potential investors away from scams and towards actual products.  In this case it is a win.  If the person just goes by 'amount paid' for the campaign then I think they would be treading in dangerous waters.

What do you think?  How do you make sure you are supporting coins while also helping out the common good?

Speaking of which, probably should research the coin my sig promotes more... any suggestions for solid coins that are having bounty campaigns in case I want to switch?
12  Alternate cryptocurrencies / Altcoin Discussion / Visualizing shilling. on: November 18, 2017, 03:57:21 AM
Hey guys.  I do work with data mining and visualization and have come up with a fun way to visualize and detect shilling, at least for our toy data set.  We look forward to using it to analyze BCT threads.

First we trained a Naive Bayes classifier to predict the sentiment of movie reviews using a corpus of movie reviews which were tagged as either negative or positive.  It basically establishes the probability of texts being negative or positive given the frequency of different keywords.

We can use this to establish the probability of some unknown text being positive and the probability of it being negative.

Then we wrote a toy data set of movie reviews to simulate the introduction of shilling.  The first six were positive and then the next six we simulate the entrance of a shiller by alternative positive and negative.

         "wonderful wonderful wonderful",
         "real neat ",
          "best movie of the year",
         "the movie was great I loved it",
         "best acting favorite",
         "awful",
         "the movie was amazing",
         "terrible movie",
         "favorite actor",
         "worst movie bad acting"
         "most amazing movie ever",
         "sucks bad"

Then we used our classifier to predict the negative and positive sentiment scores which were then visualized.  The scores for reviews were visualized as points where one axis represents the probability of the text being negative and the other the probability of it being positive.  A third axis represents time.



Thought some of you might appreciate this.  If you are interested in the script used send me a message and I will send it to you.

13  Other / Off-topic / How many off topic posts do you think are posted to increase profile activity? on: August 17, 2017, 01:35:22 AM
Tongue
14  Alternate cryptocurrencies / Altcoin Discussion / 'By popular request' Swarm thread locked and discussion moved to their forum. on: August 02, 2014, 03:33:29 PM
Anyone else remember this 'popular request'.

A pretty sketchy move on behalf of Swarm owners to make up a popular request just to silence people complaining about going back on their word and false promises.
15  Alternate cryptocurrencies / Altcoin Discussion / A 'Proof of Work' system similar to Amazon's Mechanical Turk. on: May 31, 2014, 02:08:40 AM
Amazon achieved 'artificial artificial intelligence' with its mechanical turk service.  Users can hire people to perform simple tasks that are still hard for computers to perform, such as natural language processing and computer vision tasks.

Someone should create a coin whose primary method of distribution is a faucet based proof of work system mimicking the utility of Amazon's Mechanical Turk. 

We need to work on building more utility for coins, similar to gridcoin which lets users use their computers to solve science problems, a coin whose distribution is based on helping others solve tasks themselves would be beneficial.

Mechanical Turk website: https://www.mturk.com/mturk/welcome
16  Alternate cryptocurrencies / Altcoin Discussion / Evolution of coins on: May 16, 2014, 12:54:12 AM
After being involved with this community for over a year, it is interesting to see the evolutionary process at play.  All of this data would be fun for a data miner. 


Something needs to be setup to catch all this of  this data and make use of it.
17  Alternate cryptocurrencies / Altcoin Discussion / I would like to see more people integrate machine learning into coins. on: May 13, 2014, 06:38:19 PM


For one of my projects we used neural networks for to predict uptrends and downtrends, I have also used a number of data mining techniques such as time series clustering for predicting seismic events using GPS data.

A classifier could be trained to detect various events and conditions using volume history, price history, and other features such as keyword and sentiment analysis given discussion about the coin on social media sites like twitter.

Using this one can create a state/goal based architecture where a coin can learn to adapt its behavior to meet certain criteria such as stable growth.  I know at least one coin did a very simple attempt at adjusting block rewards, but the behavior and adaptive mechanism was unable to learn and the coin did not do well.  An adaptive coin would have learned that the behavior was ineffective and changed.

Cognitive architectures based on artificial neural networks generally use a back-propagation based neural network to adjust the likelihood they will engage in a behavior in the future based upon whether it got them close to or farther from meeting a goal.  Parameters such as how long they wait before calculating this can be altered.

Behaviors:
A stabilization fund could be used to generate behaviors via buying and selling, staking and mining rates could be adjusted, the coin could be frozen on market in the case of a pump and dump if an api would allow that, and various other things.

I would use neural networks.

This would also apply to decentralized autonomous corporations.  A DAC should be adaptive and capable of learning if we want them to be fully autonomous and decentralized.  We can set the initial behaviors but allow for them to be turned on or off based upon learning. 
18  Bitcoin / Development & Technical Discussion / Looking for help setting up a faucet. (cannot interact with RPC port) on: April 13, 2014, 05:07:28 AM
I have been trying to set up a faucet but am having problems interacting with the blockchain using RPC.

It will not let me query the rpc port the coin is using.  I have tried a simple getInfo query.

I don't know if the port is even open, ss it normal for it to say page unavailable when trying to access the rpc port via a web browser?

I am just running the wallet for the coin, which I thought was enough.  Do I need to do anything else?




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