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Questions tagged [active-learning]

Active learning is a setting where an automated learning system can request labels from an external source, perhaps a human user or a real-world experiment. It is used to try to learn good models while minimizing the number of interventions required.

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What is the convergence criteria of a semi-supervised learning algorithm

I would like to know about when to stop doing semi supervision? for example, I learn a classifier from a small dataset, and then I use it to label a pool of unlabelled dataset. How long should this ...
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Using decision tree + active learning for regression?

Existing literatures that concerns using decision tree to do regression is more limited compared to its classification companion. The same also holds for research regarding active learning. I am just ...
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Using active learning to polish the accuracy after learning from a dataset

I am trying to create a prediction model which would return a numerical score upon receiving a set of representative numbers. The purpose was to replicate human quality assessment procedure upon ...
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Active learning for object detection- Batch Selection

I have a small dataset of about 220 images for three classes. I am using YOLO (you only look once) network for an object detection. I am trying to use Active learning in order to reduce the number of ...
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276 views

Active Learning with Human-in-the-Loop

I did a lot of research and can't find a satisfactory answer. I have just a quick question about Active Learning and would be pleased if you could answer it. I'm still wondering if active learning ...
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Using ML to assist human labelling in dataset with highly unbalanced classes

Are there scientific issues with using ML to assist human annotation? I've got a 3 class unlabelled dataset where only 1 in 500 elements belong to the 2 classes of interest. The labels arn't ...
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2answers
426 views

Strategies for incorporating feedback for a ML algorithm

I am developing a text classification problem, in which at some time points, say at the end of each week, I receive a batch of feedback from users about correctly and wrongly classified inputs. I am ...
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2answers
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Learning from Mistakes in a classification task

Let's say I have a text classifier that I have trained on some training dataset. Now when I run this trained classifier on some test dataset, I identify the cases where it went wrong (assuming I have ...
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1answer
79 views

Are there any tutorial for text categorization with Active Learning?

I am going to categorize texts into predefined topics. It looks like Active Learning approach is suits for me. Are there any good tutorials or advices?
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Combine reinforces and unsupervised learning?

I have an existing set of data and plan to generate more data that follows the same pattern. To do this, I plan to use unsupervised learning. How can I provide feedback on the generated data and ...
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2answers
241 views

Active learning using logistic regression

I've an unlimited amount of unlabelled data and an oracle that is able to label portions of this data using only two labels "1" or "0". I want to ask a few number of questions to the oracle and after ...
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56 views

Active learning system confusion matrix

A colleague of mine has been developing a machine learning system with an active learning component. I was having trouble reproducing the metrics he's been reporting, until I found out that he's ...
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What description fits this this learning scenario, is this a form of active learning?

A system is involved in dialog with a human partner. The system has a model of a problem domain and knows mappings between words an concepts. The human has its own model of the problem domain and ...
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1answer
514 views

Batch Active Learning for classification?

Say we have unlimited unlabeled data and we can ask an oracle for labels. We can use active learning to choose the most informative data samples for labeling, thus minimizing data labeling cost. If we ...
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84 views

Active Learning Regression Problems [closed]

I Want to apply active learning in regression problems, but all the frameworks that I found are only for classification problems. Does someone know some framework for active learning in regression ...
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58 views

Is a test set sampled after training examples have been removed by an active learning algorithm valid?

In this case desire is to optionally label a final test set after training. The training is to be done using an active learning approach which can be biased towards different characteristics (...
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938 views

R package for active learning and sampling [closed]

I tried to find R package for active learning/sampling and stumbled over "activelearning" package. However, this package is not available on CRAN. Does someone know how good is this package? Are ...
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1answer
65 views

Labeling a pool of unlabelled samples iteratively

Problem setting I'm faced with a problem in which we have a large set of data points (100K), all of which are still unlabelled. These are to be used as input to a binary classifier at a later point ...
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1answer
388 views

Asymmetrical selective sampling for linear classification

I've got a online classification problem where I predict a class label {+1, -1} for an object and then show it to a user to get a real label. My task is to minimize ...