Domain based scoring algorithm for Apache Nutch 2.3.1
I have setup Hadoop/Hbase and Nutch 2.3.1 ecosystem to crawl few domains from web. Crawler is not restricted to the seed only and will grow with time ( from the outlinks). I have to customize ranking according to my own needs. I want to set score centralized for each domain and for any document, its score will be fetched from its domain rather than document level. Just to make thing more clear
S = S1 + S2 + S3 + ... + Sn
Sd = S/(total docs)
Where S is total score i.e., sum of the score of each document. Sd is the average of total score. S1 (and so on) is the score that will be given to document based on its quality.
I basically want to make a guess for new coming document whether it is good to fetch or not.
For that, Its implementation is problematic (it may be due to I am a newbie) and I could not add a new document in scoring classes in Nutch. First of all, is it possible or is there any alternative and better solution available? and if yes then how to add a new (domain) document if it does not exist in datastore at runtime.
java hadoop mapreduce nutch nutch2
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
add a comment |
I have setup Hadoop/Hbase and Nutch 2.3.1 ecosystem to crawl few domains from web. Crawler is not restricted to the seed only and will grow with time ( from the outlinks). I have to customize ranking according to my own needs. I want to set score centralized for each domain and for any document, its score will be fetched from its domain rather than document level. Just to make thing more clear
S = S1 + S2 + S3 + ... + Sn
Sd = S/(total docs)
Where S is total score i.e., sum of the score of each document. Sd is the average of total score. S1 (and so on) is the score that will be given to document based on its quality.
I basically want to make a guess for new coming document whether it is good to fetch or not.
For that, Its implementation is problematic (it may be due to I am a newbie) and I could not add a new document in scoring classes in Nutch. First of all, is it possible or is there any alternative and better solution available? and if yes then how to add a new (domain) document if it does not exist in datastore at runtime.
java hadoop mapreduce nutch nutch2
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
add a comment |
I have setup Hadoop/Hbase and Nutch 2.3.1 ecosystem to crawl few domains from web. Crawler is not restricted to the seed only and will grow with time ( from the outlinks). I have to customize ranking according to my own needs. I want to set score centralized for each domain and for any document, its score will be fetched from its domain rather than document level. Just to make thing more clear
S = S1 + S2 + S3 + ... + Sn
Sd = S/(total docs)
Where S is total score i.e., sum of the score of each document. Sd is the average of total score. S1 (and so on) is the score that will be given to document based on its quality.
I basically want to make a guess for new coming document whether it is good to fetch or not.
For that, Its implementation is problematic (it may be due to I am a newbie) and I could not add a new document in scoring classes in Nutch. First of all, is it possible or is there any alternative and better solution available? and if yes then how to add a new (domain) document if it does not exist in datastore at runtime.
java hadoop mapreduce nutch nutch2
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
I have setup Hadoop/Hbase and Nutch 2.3.1 ecosystem to crawl few domains from web. Crawler is not restricted to the seed only and will grow with time ( from the outlinks). I have to customize ranking according to my own needs. I want to set score centralized for each domain and for any document, its score will be fetched from its domain rather than document level. Just to make thing more clear
S = S1 + S2 + S3 + ... + Sn
Sd = S/(total docs)
Where S is total score i.e., sum of the score of each document. Sd is the average of total score. S1 (and so on) is the score that will be given to document based on its quality.
I basically want to make a guess for new coming document whether it is good to fetch or not.
For that, Its implementation is problematic (it may be due to I am a newbie) and I could not add a new document in scoring classes in Nutch. First of all, is it possible or is there any alternative and better solution available? and if yes then how to add a new (domain) document if it does not exist in datastore at runtime.
java hadoop mapreduce nutch nutch2
java hadoop mapreduce nutch nutch2
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
asked Nov 13 '18 at 9:52
ShafiqShafiq
2,87742850
2,87742850
add a comment |
add a comment |
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