Deepfake Detection on Social Media Leveraging Deep Learning and FastText Embeddings for Identifying Machine-Generated Tweets.docx
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The document discusses a study on deepfake detection in social media, utilizing a deep learning model combined with fasttext embeddings to classify tweets as human or bot-generated. It highlights the growing issue of misinformation through machine-generated content on platforms like Twitter and the importance of reliable detection methods, showcasing an effective CNN architecture yielding 93% accuracy. The proposed solution also addresses challenges like data bias, model generalization, and the need for explainability to enhance trust in detection results.
![Existing System
SOCIAL media platforms were created for people to connect and share their opinions
and ideas through texts, images, audio, and videos [1]. A bot is computer software that manages
a fake account on social media by liking, sharing, and uploading posts that may be real or
forged using techniques like gap-filling text, search-and- replace, and video editing or deepfake
[2]. Deep learning is a part of machine learning that learns feature representation from input
data. Deepfake is a combination of "deep learning" and "fake" and refers to artificial
intelligence-generated multimedia (text, image, audio and video) that may be misleading [3].
Deepfake multimedia’s creation and sharing on social media have already created problems in
a number of fields such as politics [4] by deceiving viewers into thinking that they were created
by humans. Using social media, it is easier and faster to propagate false information with the
aim of manipulating people’s perceptions and opinions especially to build mistrust in a
democratic country [5]. Accounts with varying degrees of humanness like cyborg accounts to
sockpuppets are used to achieve this goal [6]. On the other hand, fully automated social media
accounts also known as social bots mimic human behaviour [7]. Particularly, the widespread
use of bots and recent developments in natural language-based generative models, such as the
GPT [8] and Grover [9], give the adversary a means to propagate false information more
convincingly. The Net Neutrality case in 2017 serves as an illustrative example: millions of
duplicated comments played a significant role in the Commission’s decision to repeal [10]. The
issue needs to be addressed that simple text manipulation techniques may build false beliefs
and what could be the impact of more powerful transformer-based models. Recently, there have
been instances of the use of GPT-2 [11] and GPT-3 [12]: to generate tweets to test the
generating skills and automatically make blog articles. A bot based on GPT-3 interacted with
people on Reddit using the account "/u/thegentlemetre" to post comments to inquiries on
/r/AskReddit [13]. Though most of the remarks made by the bot were harmless. Despite the
fact that no harm has been done thus far, OpenAI should be concerned about the misuse of
GPT-3 due to this occurrence. However, in order to protect genuine information and democracy
on social media, it is important to create a sovereign detection system for machine-generated
texts, also known as deepfake text.](https://image.slidesharecdn.com/deepfakedetectiononsocialmedialeveragingdeeplearningandfasttextembeddingsforidentifyingmachine-gener-231222073500-e26160e2/85/Deepfake-Detection-on-Social-Media-Leveraging-Deep-Learning-and-FastText-Embeddings-for-Identifying-Machine-Generated-Tweets-docx-2-320.jpg)
Deepfake Detection on Social Media Leveraging Deep Learning and FastText Embeddings for Identifying Machine-Generated Tweets.docx
- 1. Base paper Title: Deepfake Detection on Social Media: Leveraging Deep Learning and FastText Embeddings for Identifying Machine-Generated Tweets Modified Title: Using Deep Learning and FastText Embeddings to Identify Machine- Generated Tweets in Deepfake Detection on Social Media Abstract Recent advancements in natural language production provide an additional tool to manipulate public opinion on social media. Furthermore, advancements in language modelling have significantly strengthened the generative capabilities of deep neural models, empowering them with enhanced skills for content generation. Consequently, text-generative models have become increasingly powerful allowing the adversaries to use these remarkable abilities to boost social bots, allowing them to generate realistic deepfake posts and influence the discourse among the general public. To address this problem, the development of reliable and accurate deepfake social media message-detecting methods is important. Under this consideration, current research addresses the identification of machine-generated text on social networks like Twitter. In this study, a straightforward deep learning model in combination with word embeddings is employed for the classification of tweets as human-generated or bot-generated using a publicly available Tweepfake dataset. A conventional Convolutional Neural Network (CNN) architecture is devised, leveraging FastText word embeddings, to undertake the task of identifying deepfake tweets. To showcase the superior performance of the proposed method, this study employed several machine learning models as baseline methods for comparison. These baseline methods utilized various features, including Term Frequency, Term Frequency- Inverse Document Frequency, FastText, and FastText subword embeddings. Moreover, the performance of the proposed method is also compared against other deep learning models such as Long short-term memory (LSTM) and CNN-LSTM displaying the effectiveness and highlighting its advantages in accurately addressing the task at hand. Experimental results indicate that the streamlined design of the CNN architecture, coupled with the utilization of FastText embeddings, allowed for efficient and effective classification of the tweet data with a superior 93% accuracy.
- 2. Existing System SOCIAL media platforms were created for people to connect and share their opinions and ideas through texts, images, audio, and videos [1]. A bot is computer software that manages a fake account on social media by liking, sharing, and uploading posts that may be real or forged using techniques like gap-filling text, search-and- replace, and video editing or deepfake [2]. Deep learning is a part of machine learning that learns feature representation from input data. Deepfake is a combination of "deep learning" and "fake" and refers to artificial intelligence-generated multimedia (text, image, audio and video) that may be misleading [3]. Deepfake multimedia’s creation and sharing on social media have already created problems in a number of fields such as politics [4] by deceiving viewers into thinking that they were created by humans. Using social media, it is easier and faster to propagate false information with the aim of manipulating people’s perceptions and opinions especially to build mistrust in a democratic country [5]. Accounts with varying degrees of humanness like cyborg accounts to sockpuppets are used to achieve this goal [6]. On the other hand, fully automated social media accounts also known as social bots mimic human behaviour [7]. Particularly, the widespread use of bots and recent developments in natural language-based generative models, such as the GPT [8] and Grover [9], give the adversary a means to propagate false information more convincingly. The Net Neutrality case in 2017 serves as an illustrative example: millions of duplicated comments played a significant role in the Commission’s decision to repeal [10]. The issue needs to be addressed that simple text manipulation techniques may build false beliefs and what could be the impact of more powerful transformer-based models. Recently, there have been instances of the use of GPT-2 [11] and GPT-3 [12]: to generate tweets to test the generating skills and automatically make blog articles. A bot based on GPT-3 interacted with people on Reddit using the account "/u/thegentlemetre" to post comments to inquiries on /r/AskReddit [13]. Though most of the remarks made by the bot were harmless. Despite the fact that no harm has been done thus far, OpenAI should be concerned about the misuse of GPT-3 due to this occurrence. However, in order to protect genuine information and democracy on social media, it is important to create a sovereign detection system for machine-generated texts, also known as deepfake text.
- 3. Drawback in Existing System Data Bias: The effectiveness of deepfake detection models heavily relies on the quality and diversity of the training data. If the training data is biased or not representative of the entire range of deepfake techniques, the model may struggle to generalize to new and unseen types of deepfakes. Generalization to New Deepfake Techniques: Deep learning models may struggle to generalize to new and emerging deepfake techniques that were not present in the training data. Deepfake technology evolves rapidly, and models may become obsolete if they are not regularly updated with new data. Explainability and Interpretability: Deep learning models, especially complex ones, often lack transparency and interpretability. Understanding how the model reaches a particular decision can be challenging, making it difficult to trust and explain the detection results, which is important for user acceptance and legal considerations. False Positives and Negatives: Deepfake detection models may produce false positives (incorrectly flagging genuine content as deepfake) or false negatives (failing to detect actual deepfakes). Striking a balance between sensitivity and specificity is crucial to avoid the negative impact of both types of errors. Proposed System Data Preprocessing: Clean and preprocess the collected data, including text normalization, removing irrelevant information, and handling missing or noisy data. Tokenize the text into words or sub-word units for input to the deep learning model.
- 4. Feature Extraction with FastText Embeddings: Utilize FastText embeddings to convert the textual content of tweets into dense vector representations. FastText embeddings capture semantic information and can handle out-of-vocabulary words, providing a robust representation for machine-generated text. Deep Learning Model Architecture: Design a deep learning model for tweet classification. This model should take the FastText embeddings as input and output a probability score indicating the likelihood of the tweet being machine-generated. Consider using architectures like recurrent neural networks (RNNs), long short-term memory networks (LSTMs), or transformer models for capturing sequential dependencies in the text. Integration with Social Media Platforms: Develop an interface or integration with social media platforms to enable real-time or batch processing of tweets. Ensure compliance with the platforms' APIs and privacy policies. Consider providing feedback mechanisms for users to report false positives or negatives. Algorithm FastText Embeddings: Utilize the FastText algorithm to generate word embeddings for the textual content of tweets. FastText is capable of capturing sub-word information, making it effective for handling misspellings, out-of-vocabulary words, and variations in language. Explainable AI Techniques: Incorporate techniques for explainability, such as attention mechanisms or LIME (Local Interpretable Model-agnostic Explanations), to provide insights into the model's decision-making process. Explainability is essential for building trust and understanding the model's behavior.
- 5. Evaluation Metrics: Use appropriate evaluation metrics such as precision, recall, F1-score, and area under the Receiver Operating Characteristic (ROC) curve to assess the performance of your deepfake detection model. Consider the trade-off between false positives and false negatives based on the application's requirements. Advantages Robust Textual Representations: FastText embeddings provide robust representations of textual content by capturing semantic relationships and sub-word information. This can enhance the model's ability to understand the nuances of language, including misspellings, slang, and variations. Adaptability to New Deepfake Techniques: Deep learning models are capable of learning complex patterns from data, enabling them to adapt to new and emerging deepfake techniques. Regular updates and retraining can ensure the model remains effective against evolving threats. Model Generalization: The use of FastText embeddings and deep learning models enables the system to generalize well to new and unseen data. This is important for accurately detecting machine-generated content across a variety of contexts. Continuous Improvement: The system can be designed for continuous learning and improvement. Regular updates to the model based on new data and emerging trends in deepfake techniques contribute to the long-term effectiveness of the deepfake detection system. Software Specification Processor : I3 core processor Ram : 4 GB Hard disk : 500 GB
- 6. Software Specification Operating System : Windows 10 /11 Frond End : Python Back End : Mysql Server IDE Tools : Pycharm