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226 questions
Newest Active Bountied Unanswered
31 votes
4 answers
18k views

Can anyone explain PBFT Algorithm in detail without giving any link for the same? And how it works in hyperledger. So, once the transaction is sent to the blockchain: Who validates the transaction? ...
Saurabh's user avatar
  • 1,269
14 votes
3 answers
24k views

Let's do some Text Mining Here I stand with a document term matrix (from the tm Package) dtm <- TermDocumentMatrix( myCorpus, control = list( weight = weightTfIdf, ...
Captain Cook's user avatar
  • 165
7 votes
3 answers
3k views

I am trying to score similarity between posts from social networks, but didn't find any good algorithms for that, thoughts? I just tried Levenshtein, JaroWinkler, and others, but those one are more ...
user avatar
4 votes
7 answers
10k views

I have a text that contains words and numbers. I'll give a representative example of the text: string = "This is a 1example of the text. But, it only is 2.5 percent of all data" I'd like to convert ...
deltascience's user avatar
  • 3,400
4 votes
1 answer
1k views

The only way i can visualize the process is: search the blockchain for all the transactions that have the same source address as the transaction being processed, add them all up (including the trx ...
user2223142's user avatar
  • 139
4 votes
2 answers
5k views

I have started a geth client using the below client(I had already created two accounts.: geth --datadir datadir --networkid 123 --rpc --rpcaddr="localhost" --rpccorsdomain="*" --unlock <my account&...
Lakshmi's user avatar
  • 101
4 votes
3 answers
8k views

New entries are added automatically, so when I'm trying to scroll up through old entries, I might get close but before I can read anything there's a new entry and it scrolls to the bottom. I've ...
Murrays Mining's user avatar
  • 51
4 votes
1 answer
408 views

I am wanting to create an application whose behavior is directly related to that of another web application. Essentially, there is an application that runs within Gmail that dynamically interacts ...
Dnaught14's user avatar
  • 41
3 votes
1 answer
1k views

I'm trying to create a function that will generate a hash using sha1 algorithm with 9 leading zeroes. The hash is based on some random data and, like in concurrency mining, I just want to add 1 to the ...
Alin Gabriel Eremia's user avatar
  • 33
3 votes
1 answer
3k views

I want to know how to get the absolute support and relative support of itemsets in python. Presently I have the following: import pandas as pd import pyfpgrowth from mlxtend.preprocessing import ...
olu's user avatar
  • 31
3 votes
1 answer
237 views

I created a simple "blockchain" on Java. Blockchain class is an ArrayList<> of Blocks. The blocks are made by: hashcode, previous hashcode and nonse counter. When a block is created, it is added ...
Bugpirasi's user avatar
  • 453
3 votes
2 answers
298 views

I've been trying to learn Text mining and other related things in Collective Intelligence field. I am interested to make an app which will scan thru the document and show related posts/articles on ...
Volatil3's user avatar
  • 15.1k
3 votes
1 answer
2k views

my senior project is determining the dominant category of a web page.I crawled dmoz. now i am trying to build arff. After that i will use some feature extraction methods and classification algorithms. ...
user avatar
3 votes
2 answers
4k views

I'm a little late to the game, but I just learned about Web Assembly and am considering using this to mine bitcoin instead of serving ads (which tend to expose a user's identity/data). I have never ...
browsermator's user avatar
  • 1,362
3 votes
1 answer
1k views

My contract creation requires 5633321 gas - more than default block gas limit. I was able to deploy on Ropsten network it few times ago: https://ropsten.etherscan.io/tx/...
4ntoine's user avatar
  • 20.6k

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