Questions tagged [collective-intelligence]
26 questions
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Recommendation system experimentation
I'm reading the book Programming Collective Intelligence and trying to apply what I've learned against the Northwind database. Though I'm not yet confident in my understanding of the algorithms presented, I'm starting to get an idea of the general…

Chris
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How can I combine AUC and averaged 11-point precision/recall?
I am evaluating a recommender and I have ROC curves and Precision-Recall curves. When I change some parameters the ROC and PR curves change a little bit differently. Sometimes the ROC curve looks better than the PR curve, or the other way around.…

Puckl
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Data Mining, Statistics, Collective Intelligence and AI Algorithms Books and Programming Resources
In my effort to continuously improve myself, I decided to learn about Data Mining, Statistics, Collective Intelligence and AI Algorithms, and well, that sort of stuff.
What are the free ebooks, and web resources ( tutorials, code) etc that I can…

Graviton
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Python and Collective Intelligence: Chapter 2: Recommending Items
I was learning how Collective Intelligence works and I was practicing doing the example recommendations.py problem in chapter 2. Here is the link:
http://cdn.jampad.net/Library/collectiveintelligence/#calibre_link-201
When I copied and pasted this…
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Where to learn about 'Collective Intelligence'?
Which are the good resources for research in Collective Intelligence ?.
I am a Software Developer,for a year now and I am basically working in Java and Flex platforms. I want to now apply for a PHD in 'Collective Intelligence', to make my…

Amit
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How to prevent the elements in the dictionary constantly being updated?
Here is the full code:
import re
f = open('movies.item','r')
# First three item of movies.item below:
#1|Toy Story (1995)|01-Jan-1995||http://us.imdb.com/M/title-exact?Toy%20Story%20(1995)|0|0|0|1|1|1|0|0|0|0|0|0|0|0|0|0|0|0|0
#2|GoldenEye…

Bünyamin Mete
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Any algorithms that can ensure category diversity in a social ranking system?
I'm building a system similar to Reddit, where users "like" items. "Likes" would be used to determine ranking of items. There's also an "aging" factor, where more recent "likes" count more than ancient "likes".
All in all, it's similar to the…

Continuation
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error while running pearson correlations score in python
I'm new to python (PYTHON 2.7) and I'm trying to run a program that calculates Pearson correlations. The code is from the " collective intelligence"
When I import the functions and run the Pearson's correlation
I receive this error:
>>>…

Agent Smith
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Particle Swarm Optimization: what means gBest value?
I am designing a Particle Swarm Optimization simulator for MATLAB and I have a doubt about the gBest local position.
As I understood reading about the algorithm, gBest value identify the global best value that has EVER discovered by the particles.…

Víctor
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programming collective intelligence by toby segaran. How schema works?
I am studying his schema but got confused how and to whom "fromid" from link is making a relation with inside urllist? or it is a misprint ? Its chapter 4 Searching and Ranking and figure 4-1. My eyes gone blind for as i have read so much but could…

user3440716
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ImportError: No module named pysqlite2 code from Programming Collective intelligence O Reilly by Toby Segaram chapter 4
I am using python 2.7.8. The which code which i am following is from Book name as "Programming Collective intelligence O Reilly by Toby Segaram" chapter 4: I dont know why this error is coming or writer has made some mistake? I also tried to find…

user3162878
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