Unsupervised learning of visual representations using videos

X Wang, A Gupta - … of the IEEE international conference on …, 2015 - openaccess.thecvf.com
… We also evaluate our unsupervised-CNN without finetuning for scene classification task
on MIT Indoor 67 [36]. We train a linear classifier using softmax loss. Using pool5 features …

A case for unsupervised-learning-based spam filtering

F Qian, A Pathak, YC Hu, ZM Mao, Y Xie - … performance evaluation …, 2010 - dl.acm.org
EVALUATIONS We evaluate the online detection results of SCA using two datasets … Table
1 shows the evaluation results in terms of False Positive Rate (FPR) and True Positive Rate (…

Internal evaluation of unsupervised outlier detection

HO Marques, RJGB Campello, J Sander… - ACM Transactions on …, 2020 - dl.acm.org
… Therefore, in contrast to the common practice of avoiding parameters in evaluation indexes
for unsupervised learning, we advocate here that for outlier detection, it is nonetheless …

Enhancing K means by unsupervised learning using PSO algorithm

A Gupta, V Pattanaik, M Singh - 2017 International Conference …, 2017 - ieeexplore.ieee.org
EVALUATION: The major part of the algorithm covers the evaluation indices used for evaluating
… used the External Evaluation Index Calinski-Harabasz for the Evaluation of the optimal …

Extractive summarization using supervised and unsupervised learning

X Mao, H Yang, S Huang, Y Liu, R Li - Expert systems with applications, 2019 - Elsevier
… supervised learning with unsupervised learning are … of the supervised model to evaluate the
importance of sentences. The … In this section, we evaluate the effectiveness of our proposed …

On the internal evaluation of unsupervised outlier detection

HO Marques, RJGB Campello, A Zimek… - Proceedings of the 27th …, 2015 - dl.acm.org
… , rigid, and very particular evaluation perspective. Therefore, in contrast to the common
practice of avoiding any parameters in evaluation indexes for unsupervised learning, here we …

Unsupervised learning for fault detection and diagnosis of air handling units

K Yan, J Huang, W Shen, Z Ji - Energy and Buildings, 2020 - Elsevier
… In this study, the importance of unsupervised learning techniques in the existing typical …
Second, we optimize the ensemble learning quality control protocol (ELQCP) by evaluating

How to evaluate the quality of unsupervised anomaly detection algorithms?

N Goix - arXiv preprint arXiv:1607.01152, 2016 - arxiv.org
… approach is that we do not evaluate combinations of more than d features within the
dependence structure. However, according to our experiments, this is enough in most of the cases. …

Unsupervised learning of the morphology of a natural language

J Goldsmith - Computational linguistics, 2001 - direct.mit.edu
… (MDL) analysis to model unsupervised learning of the morphological … the notion of evaluation
metric in early generative grammar. … It performs unsupervised learning in the sense that the …

Improving facies prediction by combining supervised and unsupervised learning methods

M Ippolito, J Ferguson, F Jenson - Journal of Petroleum Science and …, 2021 - Elsevier
… supervised machine learning methods to evaluate the mix of facies across the dataset.
These distributions are also used later to map clusters identified using unsupervised learning to …