--- license: cc-by-nc-4.0 --- # XLMR-SocMed-UkrWarNarrative-5C_v1 ## Model Description **XLMR-SocMed-UkrWarNarrative-5C_v1** is a fine-tuned XLM-RoBERTa model designed for multi-class classification of social media narratives related to the Ukrainian conflict. The model identifies and classifies disinformation and propaganda patterns in social media discourse across 5 distinct categories. ## Model Details - **Model Type:** XLM-RoBERTa (multilingual transformer) - **Language(s):** Multilingual (optimized for social media content) - **License:** cc-by-nc-4.0 - **Finetuned from:** xlm-roberta-large - **Domain:** Social Media, Conflict Analysis, Narrative Classification - **Classes:** 5 categories - **Version:** 1.0 ### Primary Use Cases - Academic research on conflict-related social media discourse - Content moderation and disinformation detection - Media literacy and narrative analysis studies - Social media monitoring for Ukrainian conflict-related content ## Performance ### Test Set Results - **Accuracy:** 76.16% - **Macro F1:** 77.51% - **Macro Precision:** 75.06% - **Macro Recall:** 81.28% ### Per-Class Performance | Label | Category | Precision | Recall | F1-Score | Support | |-------|----------|-----------|---------|----------|---------| | 1601 | Anti-Western Narratives | 0.76 | 0.75 | 0.75 | 174 | | 1602 | Economic Fallout/Domestic Welfare Neglected | 0.69 | 0.88 | 0.77 | 50 | | 1603 | Illegitimate and Corrupt Ukrainian Leadership | 0.72 | 0.83 | 0.77 | 76 | | 1604 | Ukraine/Nazi Allegations | 0.77 | 0.95 | 0.85 | 64 | | 1699 | None (Legitimate Discourse) | 0.81 | 0.65 | 0.72 | 194 | ## Training Details ### Training Data - **Source:** Social media platforms (Twitter/X) ### Training Procedure - **Epochs:** 4 - **Final Training Loss:** 0.3397 - **Validation Accuracy:** 78.63% - **Validation F1 (Macro):** 79.93% ## Label Descriptions ### 1601 - Anti-Western Narratives Consolidates NATO expansion criticism, Western interference allegations, historical grievances, propaganda claims, and Russian defense justifications. This unified framework demonstrates substantial empirical presence across 13 clusters (~583,000 tweets) with strong thematic coherence and overlapping linguistic patterns. ### 1602 - Economic Fallout/Domestic Welfare Neglected Critical narratives focusing on resource allocation to Ukraine at the expense of domestic priorities. Shows strong empirical presence across 2 clusters (~90,000 tweets), emphasizing economic concerns and domestic welfare issues. ### 1603 - Illegitimate and Corrupt Ukrainian Leadership Narratives aimed at delegitimizing Ukrainian government through corruption allegations and personal attacks. Shows concentrated empirical evidence despite limited keyword matches, focusing on undermining leadership credibility. ### 1604 - Ukraine/Nazi Allegations The most empirically robust category with presence across 8 clusters (~157,000 tweets). Frames Ukraine as ideologically aligned with Nazi principles to justify Russian intervention. Shows highest recall (0.95) indicating strong pattern recognition. ### 1699 - None (Legitimate Discourse) Captures legitimate discourse, factual reporting, and content outside the scope of the above narrative categories. Represents balanced, non-propagandistic content related to the Ukrainian conflict. ## Bias and Limitations ### Known Limitations - Model performance varies across categories (F1: 0.72-0.85) - Lower recall for "None" category (0.65) may misclassify legitimate content - Training data reflects social media biases and temporal patterns ## Ethical Considerations ### Responsible Use - Requires human oversight for content moderation decisions - Should not be used as sole authority for censorship decisions - Results should be interpreted within broader context of media analysis - Regular monitoring for performance drift and bias amplification ### Potential Risks - False positive classifications may affect legitimate speech - Model may reflect historical biases present in training data - Adversarial attacks could exploit classification boundaries ## Technical Specifications ### Model Architecture - Base Model: xlm-roberta-large - Fine-tuning: Classification head with 5 output classes - Input: Social media text (max length as per XLM-RoBERTa specifications) - Output: Class probabilities for 5 narrative categories ### Hardware Requirements - GPU recommended for inference at scale - Standard transformer model memory requirements - Optimized for batch processing of social media content ## Citation ```bibtex @misc{xlmr-socmed-ukrwarnarrative-5c-v1, title={XLMR-SocMed-UkrWarNarrative-5C_v1: A Multilingual Classifier for Ukrainian Conflict Narratives on Social Media}, author={[Your Name/Institution]}, year={2025}, url={[Model URL]} } ``` ## Model Card Authors [Orsolya Ring/poltextLAB] --- *This model card follows the guidelines established by Mitchell et al. (2019) for transparent AI model documentation.*