Newest 'semi-supervised-learning' Questions

2

votes

1answer

18 views

Solutions for Labelling Training Data for Binary Classification Problems

I have a huge dataset for which I am trying to use an 80-20 (Holdout method) approach to train and test my model. However, the dataset I have been given has 6m rows. The objective is to train+test+...

asked Nov 8 '20 at 12:09

ha9u63ar

1413 bronze badges

1

vote

1answer

29 views

Is it better to have one model with more categories or less with two for multi-label classification?

For classifying text into three classes question, complain and complements where each sample can have multi-labels (question and complains, question and complements): is it better to have one model ...

classification unsupervised-learning supervised-learning multilabel-classification semi-supervised-learning

asked Aug 10 '20 at 13:08

Nouf

111 bronze badge

3

votes

1answer

45 views

How to approach semi-supervised binary classification problem with few labels only from one class?

I confront with a binary classification problem where I do have a few instances with labels (so far this is "semi-supervised" learning as far as I know), but only from the positive class. So ...

machine-learning classification semi-supervised-learning

asked Jul 29 '20 at 7:50

Fredrik

6772 gold badges7 silver badges9 bronze badges

1

vote

1answer

27 views

Identifying templates from SMS text

I am building an app where I identify information from the SMS, something similar to expense management apps. I have a parser which reads all the SMS of user, identifies SMS of interest and parses ...

unsupervised-learning text-classification semi-supervised-learning

asked Jul 12 '20 at 17:49

rubish

1192 bronze badges

0

votes

0answers

18 views

How do I build a model to improve CTR on campaign?

I am trying to build a propensity model for a client to increase the CTR. Client has the list of people who clicked in the previous campaigns but doesn't have the data on the list of people who didn't ...

machine-learning classification class-imbalance semi-supervised-learning

asked Jun 16 '20 at 10:08

Piyush Makhija

13 bronze badges

0

votes

1answer

56 views

Semi-supervised anomaly detection

I am currently exploring anomaly detection methods for my work and, basically I have gone through Local Oulier Factor and Isolation Forests, both unsupervised methods. Now, the thing is, there might ...

anomaly-detection class-imbalance outlier semi-supervised-learning

asked Jun 12 '20 at 9:20

David Marques

355 bronze badges

0

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1answer

37 views

What is the principle of Unsupervised Data Augmentation (UDA)? Why does UDA work?

UDA(https://github.com/google-research/uda) could achieve good accuracy by only 20 training data on text classification. But I find it is hard to reproduce the result on my own dataset. So I want to ...

deep-learning unsupervised-learning bert data-augmentation semi-supervised-learning

asked Jun 6 '20 at 13:32

不是phd的phd

4954 silver badges13 bronze badges

0

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0answers

8 views

Data points are highly overlapped and do not follow smoothness rule assumption

I am working on a very high dimensional categorical features based data set. There are two output classes and 2-dimensional PCA plot suggests that the data points belonging to both +ve and -ve classes ...

machine-learning deep-learning classification unsupervised-learning semi-supervised-learning

asked May 29 '20 at 18:18

user9905807

11 bronze badge

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0answers

20 views

Transductive Multilabel Classification

I'm trying to use transductive (semi-supervised) multilabel classification on my dataset since I have a low volume of labelled data samples, compared to the unlabelled samples. I found a promising ...

machine-learning multilabel-classification semi-supervised-learning

asked Feb 12 '20 at 10:13

Aishwarya A R

1697 bronze badges

2

votes

1answer

33 views

What is the difference between all the different types of learning within machine learning?

This is a question that is really hard to google, and the differences are confusing. Does anyone have good examples of the differences between them all? Supervised Learning Semi-Supervised Learning ...

machine-learning unsupervised-learning supervised-learning semi-supervised-learning

asked Dec 6 '19 at 16:44

A.White

575 bronze badges

1

vote

1answer

40 views

Validity of PU learning while using character-level encoding using CNNs for classifying text data

I'm trying to classify a large set of documents (~100M) as valid or invalid, based upon a small given set of labeled valid documents (~3k). I'd like to know if the PU learning approach described in ...

keras cnn convnet encoding semi-supervised-learning

asked Nov 29 '19 at 6:34

Siddhant Kundu

116 bronze badges

2

votes

4answers

76 views

Supervised clustering

I'm working on a clustering problem. I have a training set composed of sets of points where the clusters are known and I want to find the good clusters on a testing dataset. It's a kind of supervised ...

clustering unsupervised-learning supervised-learning semi-supervised-learning

asked Sep 22 '19 at 18:46

Rodolphe LAMPE

1212 bronze badges

2

votes

0answers

294 views

Inductive vs Transductive Learning

I am reading about Inductive and Transductive Learning. Some of the questions that come to mind are the following: What is the difference between these two? Which algorithms are usually employed for ...

semi-supervised-learning

asked Jul 22 '19 at 13:11

Outcast

1,0056 silver badges19 bronze badges

0

votes

0answers

29 views

using dataset to classifying and labelling another unlabeded dataset

I collect a collection of posts from Facebook and I use a published sentiment datset to labeling my collected dataset. is this a right technique and what its name is this transfer-learning ?

machine-learning sentiment-analysis transfer-learning semi-supervised-learning

asked Jul 15 '19 at 22:36

mtesta010

234 bronze badges

0

votes

1answer

41 views

Is there an algorithm for categorizing unlabeled samples into K classes? [closed]

I am not sure if this would be considered unsupervised, or semi-supervised learning. I am looking for an algorithm that will take N input arrays of features, and then cluster samples(not features) ...

clustering image-classification supervised-learning multilabel-classification semi-supervised-learning

asked Jul 7 '19 at 14:34

Travis Black

1112 bronze badges

0

votes

0answers

29 views

Ignoring unlabeled data for a single class

I have a data set of transactions with a binary flag labeling each as fraud or not fraud. However, it can take up to 90 days for a transaction to reveal itself as fraudulent. Sometimes it happens in a ...

classification class-imbalance semi-supervised-learning

asked Jun 13 '19 at 19:55

Stu

1014 bronze badges

0

votes

3answers

592 views

What kind of learning is needed for anomaly detection? Supervised learning, semi-supervised learning or unsupervised learning?

I am doing anomaly detection recently, one of the methods is using AEs model to learn the pattern of normal samples. Determine it as an abnormal sample if it doesn’t match the pattern of normal ...

unsupervised-learning supervised-learning anomaly-detection semi-supervised-learning

asked May 12 '19 at 14:12

disney82231

775 bronze badges

0

votes

1answer

159 views

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

I would like to know when to stop doing semi supervision? For example, if I learn a classifier from a small dataset and then use it to label a pool of unlabelled dataset. I then use the newly labelled ...

machine-learning data-mining semi-supervised-learning active-learning

asked May 2 '19 at 8:35

Nawshad Farruque

1316 bronze badges

2

votes

1answer

35 views

Accuracy after selftraining didn't change

I used Decisiton Tree Classifier which I trained with 50 000 samples. I have also set with unlabeled samples, so I decided to use self training algorithm. Unlabeled set has 10 000 samples. I would ...

accuracy semi-supervised-learning

asked Mar 23 '19 at 13:10

SMI9

215 bronze badges

0

votes

1answer

566 views

How to get probability of classification

I have binary classification, I tried several model KNN, SVM, decision tree and random forest. I have 50 000 samples, X_train has 50 000 rows and 2300 columns. ...

machine-learning classification semi-supervised-learning

asked Mar 20 '19 at 21:07

Max

1031 bronze badge

1

vote

0answers

19 views

General way of constructing adjacency matrix in Laplacian SVM semi-supervised technique

I am trying to implement a Laplacian SVM classifier (trained in primal) using algorithm from this paper. I would like to know what is the most common way of constructing adjacency matrix and the most ...

svm semi-supervised-learning implementation

asked Feb 13 '19 at 22:25

Nicolas Scotto Di Perto

1313 bronze badges

2

votes

0answers

19 views

Neural Network for detecting/checking for requirements in diagrams

My question is more about what approach is a good/the best approach for my problem: THE PROBLEM - I'm an (mechanical/software) engineer and we take extensive amount of time to review technical ...

neural-network image-classification supervised-learning semi-supervised-learning

asked Dec 28 '18 at 20:36

amlwwalker

1212 bronze badges

1

vote

0answers

54 views

Improving automated ingestion system using Machine Learning and/or NLP

I'm working on a automated ingestion system which takes a PDF or doc file or a URL. It then parses the file and get me the required text in a json format but there are some error and there are few ...

machine-learning python nlp supervised-learning semi-supervised-learning

asked Dec 27 '18 at 11:34

Khushhalm

113 bronze badges

0

votes

1answer

31 views

Adapting Neural Network to new domain without labels

Is there an approach for the following problem: Lets say, I trained a neural network on a big dataset for categorizing different fruits in $k$ classes. Afterwards I got a nice model, which performs ...

semi-supervised-learning neural

asked Dec 18 '18 at 16:28

Andreas Look

8634 silver badges14 bronze badges

1

vote

1answer

245 views

Semi-supervised learning for regression

It is mentioned on this page that Label Propagation of scikit-learn can be used for regression also. However, nothing is ...

regression semi-supervised-learning

asked Nov 4 '18 at 10:25

rnso

1,3362 gold badges10 silver badges28 bronze badges

0

votes

1answer

172 views

how to build a predictive model without training data neither historical data

I m trying to score "how much a product is expected in the market". I created some features: How much this product is used each year. Where was it used . how many product for each country. the main ...

predictive-modeling feature-selection unsupervised-learning supervised-learning semi-supervised-learning

asked Oct 9 '18 at 8:14

Lizou

2153 silver badges7 bronze badges

2

votes

1answer

489 views

Semi Supervised Learning without label propagation

I am trying to cluster some words by affinity. Using Word2Vec I obtained vector representation of every word that I can cluster with a normal unsupervised method. Of these words, though, I know the ...

python clustering word2vec semi-supervised-learning

asked Aug 7 '18 at 13:15

Nicolò Gasparini

2051 silver badge7 bronze badges

1

vote

0answers

87 views

Semi-supervised Learning doubt

I'm reading "Hands on machine learning" by Aurelien Geron. He stated that semi-supervised learning is: Some photo-hosting services, such as Google Photos, are good examples of this. Once you ...

machine-learning statistics unsupervised-learning supervised-learning semi-supervised-learning

asked Jul 19 '18 at 14:54

lgndrzzz

1233 bronze badges

3

votes

2answers

306 views

Time series binary classificaiton with labelling issues

My situation is quite complicated so I will give a similar example from a simpler domain. Suppose we want to try to predict WHEN a mobile game users will make a purchase if given a sale. Almost every ...

machine-learning classification time-series feature-engineering semi-supervised-learning

asked Jul 3 '18 at 5:33

Keith

3262 silver badges13 bronze badges

0

votes

1answer

450 views

suggest ingredients based on recipe title [closed]

I would like to construct system that would suggest user ingredients once he/she inputs title of the recipe. I think that this is the task of machine learning or AI, but on the other hand I am pretty ...

machine-learning python deep-learning supervised-learning semi-supervised-learning

asked Jun 3 '18 at 12:53

Giorgi Jambazishvili

1195 bronze badges

1

vote

1answer

35 views

Problem faced when collect data randomly from cluster [closed]

I have a semi structured data set. I need to collect some data (unlabeled) randomly for labeling. As initiative at first I separated labeled and unlabeled data. Then I convert those data from string ...

machine-learning python clustering k-means semi-supervised-learning

asked Apr 24 '18 at 8:01

IS2057

2671 gold badge7 silver badges20 bronze badges

-1

votes

1answer

683 views

How to do semi-supervised learning for regression

I am doing regression analysis on a data set with over 20000 samples using scikit learn. Trying to use regression models to fit three features to label which is a score ranges from 0 to 10. Problem is ...

scikit-learn regression semi-supervised-learning

asked Apr 5 '18 at 18:55

ddd

2032 silver badges5 bronze badges

1

vote

1answer

87 views

Can You Purposely Bias A Clustering Model?

We have a large amount (Billions) of high cardinality, mixed nominal & numerical data, and are performing some clustering on it as an experiment. There is a small subset of these data, however, ...

clustering unsupervised-learning semi-supervised-learning bias

asked Apr 5 '18 at 16:55

TheProletariat

1516 bronze badges

4

votes

1answer

10k views

Custom conditional loss function in Keras

I'm looking for a way to create a conditional loss function that looks like this: there is a vector of labels, say l (l has the same length as the input x), then for a given input (y_true, y_pred, l) ...

keras loss-function semi-supervised-learning

asked Mar 1 '18 at 5:32

Tian

411 silver badge3 bronze badges

5

votes

4answers

7k views

Why positive-unlabeled learning?

Machine learning can be divided into several areas: supervised learning, unsupervised learning, semi-supervised learning, learning to rank, recommendation systems, etc, etc. One such area is PU ...

machine-learning classification semi-supervised-learning

asked Jan 17 '18 at 14:54

Ricardo Cruz

3,0229 silver badges29 bronze badges

1

vote

1answer

416 views

How should I construct a binary classifier for thousands of positive data and millions of unlabeled data?

So far, I have stumbled upon many advices and papers on PU Learning and Unary classification. TLDR: Does anyone have suggestions for specific algorithm or implementation for labeled data of only one ...

python classification tensorflow svm semi-supervised-learning

asked Jul 27 '17 at 20:13

Flair

1211 bronze badge

4

votes

1answer

161 views

Probability for label correctness in semi-supervised learning

I am aware of the existence of semi-supervised learning approaches, such as the Ladder Network, where only a subset of the data is labeled. Are there any methods or papers which consider correctness ...

supervised-learning unsupervised-learning labels semi-supervised-learning

asked Jun 9 '17 at 12:46

AlexGuevara

1593 bronze badges

5

votes

2answers

662 views

General strategy for imbalanced, semi-supervised, sparse problem

I am looking for some general advice on where to start with this problem. There are 350 sparse (low positive integer) features. I have 2000 positives, 1000 negatives, and infinite unlabeled data, ...

machine-learning predictive-modeling semi-supervised-learning

asked Dec 28 '16 at 16:07

Lucky711

513 bronze badges

5

votes

3answers

178 views

Predictive clustering

I have an hypothesis but i don't know if it's true. If the cluster is dense and we apply a supervised learning on this data, the model generated by this cluster will be more efficient for new data ...

clustering supervised-learning semi-supervised-learning

asked Mar 6 '16 at 15:46

KyBe

4103 silver badges13 bronze badges

2

votes

1answer

217 views

Generic strategy for object detection

I have a huge collection of objects from which only a tiny fraction are in a class of interest. The collection is initially unlabelled, but labels can be added using an expensive operation (for ...

machine-learning classification object-recognition semi-supervised-learning active-learning

asked Mar 6 '15 at 10:28

Valentas

5904 silver badges16 bronze badges

11

votes

3answers

2k views

Build a binary classifier with only positive and unlabeled data

I have 2 datasets, one with positive instances of what I would like to detect, and one with unlabeled instances. What methods can I use ? As an example, suppose we want to understand detect spam ...

classification semi-supervised-learning

asked Jul 7 '14 at 9:34

nassimhddd

5573 silver badges12 bronze badges

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