relates to algorithms that are "trained" by some data set.

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1
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1answer
105 views

What does it mean for an algorithm to converge?

I keep coming across this term when reading about reinforcement learning, for example in this sentence: If the problem is modelled with care, some Reinforcement Learning algorithms can converge to ...
0
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0answers
58 views

Will this data mining approach work? Is it a good idea?

I need to extract fields like the document number, date, and invoice amount from a bunch of .csv files, which I believe are referred to as "unstructured text." I have some labeled input files and will ...
1
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1answer
68 views

Machine learning applicability

Context: I am working on a rule-engine for home automation. Consider you have an RESTful API to a house. The possibilities- GET on an appliance to find out if it is on/off. PUT 'on' to turn on a ...
-2
votes
2answers
124 views

How would you structure your code for a Neural Network? [closed]

I understand how Artificial Neural Networks work. However, implementing one in code is quite another thing. How would you go about designing the classes and data structures? I found one great ...
0
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1answer
109 views

How to create good positive and negative images for opencv to distinguish smiling from not smiling? [closed]

My goal is to create an opencv haar classifier xml that distinguishes between me smiling and not smiling. I created images, cut them, showing me smiling and as negatives not smiling. About 5000 ...
1
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0answers
38 views

How is the event model of multinomial naive bayes algorithm right

The event model of multinomial NB is this: P(x1, x2...Xm | y=k) = P(x1 | =k) * P(x2 | y=k) * ...* P(xm | y=k), where x is i'th word in the document. Then we apply it to bag of words model. P = P(x1 ...
2
votes
1answer
64 views

How to access large amounts of data for machine learning in a microservices architecture

Imagine you are building a product recommendation algorithm for an eccommerce application which is built as a microservices architecture, this architecture having separate services for users and ...
1
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1answer
69 views

Recommending new products using k-means clusters?

I'm trying to figure out the best way to recommend images based on past classifications using k-means clusters. What I have done is mapped the RGB values of a set of images, performed a k-means ...
1
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1answer
153 views

Generate algorithm to solve peg solitaire

I know that with regression it is possible to generate a mathematical function based on experimental data. I was wondering, maybe there is a way to generate something more complex. I have a single ...
1
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0answers
79 views

Neural network converges to 0.5 for XoR

I'm coding a neural network in C for an OCR project. Before testing with character recognition, I'm making it learn the XoR operation. Although, the results I'n getting always converges to 0.5 instead ...
0
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1answer
698 views

Why does this evaluation function work in a connect four game in java

I am exploring how a Minimax algorithm can be used in a connect four game. I was looking through a program and found this evaluation function. private static int[][] evaluationTable = {{3, 4, 5, 7, ...
10
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5answers
2k views

Is it imaginable to teach a machine how to program itself to a defined specification? [closed]

A friend of mine without programming knowledge asked me this question and I found it interesting. I think it is not possible because it would require a really advanced artificial intelligence ...
1
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1answer
61 views

Efficiently extracting data from pdf with a template system?

basically allow a user to label specific text in a pdf file. Use the label information to create a template, which a script uses to extract text from specific pdf. What would be a good pattern to use ...
2
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0answers
65 views

How do I visualise the feature space partitioning in random forest?

I am learning about random forest and found this video https://www.youtube.com/watch?v=gdnIqGbqiYs&list=UUb9svouAi1XHRqlOs8LXbBg very useful. The first 8 minutes explain how to visualise how the ...
1
vote
1answer
61 views

Is this a good task for machine learning - grouping pieces of DNA based on sequence?

Say I have a list of 50 DNA sequences all of the same length (6, 8 or 16 bps/ chars). I want to group these to sets of say 5 or 6 sequences per set. I have some criteria that need to be met based ...
0
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2answers
175 views

How could an expert system get some meaning from a sentence? [closed]

How could an expert system tell following scenarios apart? How could we include some meaning of a sentence, if at all? A machine needs 1 day to produce x units, and, we know that two machines like ...
2
votes
1answer
146 views

Random forest ML algorithm suitable for use on cluster based HPC?

I need help in identifying a better algorithm. I have developed a script using pythons scipy package to analyse a rather large model that I wish to solve. The model contains over 12GB of data ...
2
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0answers
25 views

How to use event weights in TMVA ROOT

I'm trying to train and perform classifiers from TMVA. My data set contains event weights besides event data. In the TMVA::Factory there's a method setWeightExpression to specify event weights. What ...
1
vote
1answer
204 views

How can I apply machine learning to automated melody generation? [closed]

I've been working for a while on an app that makes up melodies. Each melody is composed of several phrases (musical sentences, or 'sub-melodies'). Now, I want to improve on this: The user can press ...
1
vote
1answer
100 views

Is it possible to get probabilities from a support vector machine?

From what I understand, SVM's take a discrete number of x and y values from which to learn from, then when given new x values map it to one y value (category). Is it possible to use SVM's or something ...
0
votes
1answer
102 views

Looking for a specific type of artificial intelligence

I am looking to create a challenging AI project. There is an online card game that allows you to build a deck to play with out of randomly presented cards. You have to choose one each time out of a ...
4
votes
2answers
132 views

Can I use machine learning for screening experimental data?

I am a experimental physicist. In our research, we have our experimental data in a 400*400*400 matrix(x, y, z axis of a 3d space), each entry is associated with a value("brightness"). We expect the ...
2
votes
1answer
148 views

Support Vector Machines as Neural Nets?

This is more of a conceptual question. I have learned about Neural Nets, and I have some clue as to how Support Vector Machines work. I read somewhere however that given the appropriate kernel (is ...
1
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2answers
146 views

How to make the leap from classification to clustering

I have a clustering problem which I can't seem to solve, although if I treat it as a labeled classification problem, I can solve it with satisfactory precision. Is there an elegant way to make the ...
11
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1answer
1k views

How is machine learning incorporated into search engine design?

I am currently building a small in-house search engine based on Apache Lucene. Its purpose is simple - based on some keywords, it will suggest some articles written internally within our company. I am ...
5
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2answers
305 views

How to solve this problem- Neural Net? Fuzzy? Other?

Hi I have a programming problem that I would like to solve using some artificial intelligence technique. I really dont know where to start. I would like some guidance as to what methodology to pursue. ...
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0answers
110 views

Algorithm to analyse and predict

I'm having a set of data's, say Question, Question's Main Category,Main Category followers, Question's Related Categories,Each Related Categories followers, Whether it got answer in 24hrs [Yes/No] ...
1
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1answer
1k views

How to design a calculator from scratch [closed]

A basic calculator can perform a wide variety of operations. How does the claculator 'get' the concept of adding two numbers in the same way a human does? I dont think people that make claculators ...
1
vote
1answer
478 views

Machine Learning Algorithm for Heating/Lighting Optimization

I'm working on a project where I'm developing an interface that learns how you typically use a space, and tries to create the most appropriate control strategy for heating/lighting. I've done some ...
2
votes
1answer
586 views

Machine Learning with sample data set

I have a question regarding Machine Learning in general. Consider the following scenario: Given a piece of text, we want a program to know whether the text is 'abusive' or not. To do this we can ...
10
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3answers
843 views

Can a neural network provide more than “yes” or “no” answers?

Every example neural network for image recognition I've read about produces a simple "yes" or "no" answer. One exit node corresponds to "Yes, this is a human face," and one corresponds to "No, this ...
3
votes
2answers
148 views

Clustering algorithm that doesn't require predefining the number of clusters required

I have a set of user queries from a search engine that I want to cluster. The only clustering algorithm I have come across so far is the K-means clustering algorithm, which requires defining the ...
6
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2answers
2k views

Machine Learning With Categorical and Continuous Data

This question could go here or on S.O. perhaps... Suppose that your training dataset contains both categorical and continuous data such as this setup: Animal, breed, sex, age, weight, ...
3
votes
1answer
193 views

Tasks incorrectly categorized with online text classifiers

Context: Finding company to do the job The use case of an application I want to write is that a user will describe a task to be performed by some company, e.g., I want to move 10 boxes ...
9
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2answers
2k views

What math skills are required to learn machine learning?

I am interested in taking this online course on machine learning. As it stands my math is very elementary, and I am basically learning math from scratch on khan academy. Programming-wise I have a ...
10
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4answers
602 views

Using machine learning to aim mirrors in a solar array?

I've been thinking about solar collectors where several independent mirrors to focus the light on a solar collector, similar to the following design from Energy Innovations. Because there will be ...
4
votes
1answer
328 views

What's the normal way machine-learning algorithms are integrated into normal programs?

I'm currently taking a machine learning course for fun, and the course heavily focuses on Matlab/Octave to write the code. One thing mentioned in the course is that, while Matlab/Octave are great for ...
7
votes
1answer
6k views

Decision trees vs. Neural Networks

I'm implementing a machine learning structure to try and predict fraud on financial systems like banks, etc... This means that there is a lot of different data that can be used to train the model eg. ...
3
votes
2answers
3k views

Separating words in a string

How do I separate words in a string? In the following I have a random sample of words in a string extracted from text file with over a million words. Here's the string: "intervene Pockets ...
1
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2answers
1k views

How to create a Semantic Network like wordnet based on Wikipedia?

I am an undergraduate student and I have to create a Semantic Network based on Wikipedia. This Semantic Network would be similar to Wordnet(except for it is based on Wikipedia and is concerned with ...
6
votes
3answers
3k views

What algorithm(s) can be used to achieve reasonably good next word prediction?

What is a good way of implementing "next-word prediction"? For example, the user types "I am" and the system suggests "a" and "not" (or possibly others) as the next word. I am aware of a method that ...
1
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4answers
148 views

Possible applications of algorithm devised for differentiating between structured vs random text

I have written a program that can rapidly (within 5 sec on a 2GB RAM desktop, 2.33 Ghz CPU) differentiate between structured text (e.g English text) and random alphanumeric strings. It can also ...
3
votes
2answers
147 views

Learning system instead of using sed/replace for reviewing test results

For every build of my software I run it through a series of tests that execute a number of commands on a command line and captures the results. Most of the time the output is a combination of: - ...
8
votes
1answer
431 views

what do programmers dealing with data driven/machine learning related programming need? [closed]

Given the increasing amount of data generated through different web services ( social network, etc), there are must be more and more programmers who are familiar with machine learning and/or ...
8
votes
3answers
3k views

what techniques can be used to implement Facebook's People You May Know feature? [closed]

I'm curious to learn from a technical perspective what techniques can be used to make recommendations for e.g. Facebook's "People You May Know" (what algorithm do they use, etc.)? One of the things ...
1
vote
1answer
620 views

Is Agile Development used in Machine Learning and Natural Language Processing?

I've been developing web apps for a while now and it is standard practice in our team to use agile development techniques and principles to implement the software. Recently, I've also become involved ...
4
votes
2answers
1k views

What is the required background to apply Machine Learning to Finance?

I'm interested in machine learning in relations to the stock market (predicting future values of stocks etc). What topics would I need to learn - e.g. what branch of AI to look into etc? and what ...
2
votes
1answer
180 views

What machine learning algorithm[s?] would be applicable here?

I have documents that contain an arbitrary amount of key/value fields. The value can be a primitive or a list. Completed documents all have an associated state (such as passed, failed, halted, etc.). ...
9
votes
5answers
6k views

What's the best way to learn image processing? [closed]

I'm a senior in college that hasn't done much image processing before (except for some basic image compression on smartphones). I'm starting a research project on machine learning next semester that ...
11
votes
3answers
872 views

Is there a good Cognitive Architecture for implementing intelligent software agents?

So, I like dabbling in intelligent agent design (mainly video-game 'bots' but also some general task automation), but as a budding psychologist, I'd be really interested in a platform for developing ...