Papers with Discrete Cosine Transform
Discrete Cosine Transform as Universal Sentence Encoder (2021.acl-short)
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| Challenge: | Modern sentence encoders capture underlying linguistic characteristics of words . Discrete Cosine Transform (DCT) is an efficient alternative to averaging . |
| Approach: | They propose to use a Discrete Cosine Transform to generate universal sentence representations in different languages. |
| Outcome: | The proposed model captures the underlying syntactic characteristics of a given text without compromising practical efficiency. |
Multi-Scale Spectral Selection and Entropy-Guided Uncertainty Fusion for Multimodal Rumor Detection (2026.findings-acl)
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| Challenge: | Existing methods for multimodal content detection fail to capture cross-modal semantic inconsistencies and ignore inherent noise in multimodal features. |
| Approach: | They propose a multimodal rumor detection method based on a frequency domain spectral selection method and entropy-guided uncertainty fusion method to capture cross-modal semantic inconsistencies. |
| Outcome: | The proposed method outperforms state-of-the-art methods in multimodal rumor detection . it shows stronger detection capability and robustness on multiple datasets . |
Tucker Decomposition with Frequency Attention for Temporal Knowledge Graph Completion (2023.findings-acl)
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| Challenge: | Existing models for temporal knowledge graph completion only consider the combination of one relation with one timestamp, ignoring the global nature of the embedding. |
| Approach: | They propose a temporal knowledge Graph Completion model that captures global temporal dependencies between one relation and the entire timestamp. |
| Outcome: | The proposed model outperforms the state-of-the-art models on three standard TKGC datasets on several metrics. |
Resonating with RoPE: Spectral Quantization for High-Fidelity Key Cache Compression (2026.acl-long)
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| Challenge: | Existing approaches to reduce memory footprint of long-context LLMs rely on RoPE-induced oscillations. |
| Approach: | They propose a frequency-domain framework that converts RoPE-induced oscillations into sparse spectral representations. |
| Outcome: | The proposed framework achieves efficient compression with performance comparable to FP16 benchmarks. |