# An ensemble deep learning technique for detecting suicidal ideation from posts in social media platforms

arXiv: https://arxiv.org/abs/2112.10609 · HTML: https://mlsanity.com/paper/2112.10609/

## Key facts

- Cited by 4 papers in the map (data through 14 Oct 2026).
- Builds on 6 of its 38 references that are in the map.
- First posted on arXiv 17 Dec 2021.

## Builds on (most cited first, 6 of 6)

- [Distributed Representations of Words and Phrases and their Compositionality](https://mlsanity.com/paper/1310.4546/) (2013)
- [Empirical Evaluation of Rectified Activations in Convolutional Network](https://mlsanity.com/paper/1505.00853/) (2015)
- [Recurrent Neural Network for Text Classification with Multi-Task Learning](https://mlsanity.com/paper/1605.05101/) (2016)
- [Attention in Natural Language Processing](https://mlsanity.com/paper/1902.02181/) (2019)
- [A C-LSTM Neural Network for Text Classification](https://mlsanity.com/paper/1511.08630/) (2015)
- [TI-CNN: Convolutional Neural Networks for Fake News Detection](https://mlsanity.com/paper/1806.00749/) (2018)

## Built on by (most cited first, 4 of 4)

- [SOS-1K: A Fine-grained Suicide Risk Classification Dataset for Chinese Social Media Analysis](https://mlsanity.com/paper/2404.12659/) (2024)
- [Understanding Mental Health Content on Social Media and Its Effect Towards Suicidal Ideation](https://mlsanity.com/paper/2501.09309/) (2025)
- [Towards Knowledge-based Mining of Mental Disorder Patterns from Textual Data](https://mlsanity.com/paper/2207.06254/) (2022)
- [Detecting Suicidal Ideation in Text with Interpretable Deep Learning: A CNN-BiGRU with Attention Mechanism](https://mlsanity.com/paper/2511.08636/) (2025)

## Abstract (arXiv)

Suicidal ideation detection from social media is an evolving research with great challenges. Many of the people who have the tendency to suicide share their thoughts and opinions through social media platforms. As part of many researches it is observed that the publicly available posts from social media contain valuable criteria to effectively detect individuals with suicidal thoughts. The most difficult part to prevent suicide is to detect and understand the complex risk factors and warning signs that may lead to suicide. This can be achieved by identifying the sudden changes in a user behavior automatically. Natural language processing techniques can be used to collect behavioral and textual features from social media interactions and these features can be passed to a specially designed framework to detect anomalies in human interactions that are indicators of suicidal intentions. We can achieve fast detection of suicidal ideation using deep learning and/or machine learning based classification approaches. For such a purpose, we can employ the combination of LSTM and CNN models to detect such emotions from posts of the users. In order to improve the accuracy, some approaches like using more data for training, using attention model to improve the efficiency of existing models etc. could be done. This paper proposes a LSTM-Attention-CNN combined model to analyze social media submissions to detect any underlying suicidal intentions. During evaluations, the proposed model demonstrated an accuracy of 90.3 percent and an F1-score of 92.6 percent, which is greater than the baseline models.