Retrieval-augmented generation
LongLLMLingua
LongLLMLingua: Accelerating and Enhancing LLMs in Long Context Scenarios via Prompt Compression
Superseded — cited as a baseline and beaten by newer methods
3 papers critique it · 12 beat it on benchmarks
What papers say
Verbatim critique sentences, each from a paper that cites LongLLMLingua as a baseline.
While some methods, such as perplexity-based approaches, can process longer texts, they often lack comprehensive document understanding.
“While these methods improve textual RAG, they do not address the fundamental cross-modal attention collapse that occurs in multimodal architectures.”
“the pre-processing methods introduce additional computational costs during inference and may lead to the loss of essential information.”
Beaten on benchmarks
Head-to-head results where a newer method reports beating LongLLMLingua. Values are copied from the source paper's tables — verify against the cited paper.
R²AG beats LongLLMLingua
0.6930 vs 0.3635
NQ-10 Acc · [Frozen LLMs]
R^2AG: Incorporating Retrieval Information into Retrieval Augmented GenerationAttentionRAG beats LongLLMLingua
0.53 vs 0.28
EM · [Qwen2.5-7B-Instruct / HotpotQA]
AttentionRAG: Attention-Guided Context Pruning in Retrieval-Augmented GenerationFlexRAG w. SC. beats LongLLMLingua
29.93 vs 17.82
Average (LMQA) · [8x compression ratio]
Lighter And Better: Towards Flexible Context Adaptation For Retrieval Augmented GenerationAttnComp beats LongLLMLingua
19.6 vs 13.8
SARA beats LongLLMLingua
54.90 vs 39.27
ROUGE-L · [512 tokens]
SARA: Selective and Adaptive Retrieval-augmented Generation with Context CompressionQREAM-FT beats LongLLMLingua
45.6 vs 36.3
Accuracy · [Standard RAG Pipeline with Llama-3-8B-Instruct]
Align Documents to Questions: Question-Oriented Document Rewriting for Retrieval-Augmented GenerationLongRefiner beats LongLLMLingua
50.6 vs 40.4
Accuracy · [2k token limit, Qwen2.5-7B-Instruct]
Hierarchical Document Refinement for Long-context Retrieval-augmented GenerationCORE beats LongLLMLingua
36.72 vs 29.37
EM · [Compression of top 5 documents on 2WikiMultihopQA]
CORE-RAG: Lossless Compression for Retrieval-Augmented LLMs via Reinforcement LearningSelf-Correcting RAG beats LongLLMLingua
37.1 vs 31.6
Exact Match (EM) · [Average across all QA benchmarks]
Self-Correcting RAG: Enhancing Faithfulness via MMKP Context Selection and NLI-Guided MCTSSKR beats LongLLMLingua
43.61 vs 40.05
Avg. · [Llama-2-7B, Top-5]
Supportiveness-based Knowledge Rewriting for Retrieval-augmented Language ModelingLongLLMLingua + BAIR beats LongLLMLingua
87.45 vs 84.36
Acc. · [Qwen2.5-VL-3B (FACET)]
The Cost of Context: Mitigating Textual Bias in Multimodal Retrieval-Augmented Generation
What to use instead
Recent methods in the same sub-problem, not yet superseded in the knowledge base — arXiv benchmark leaders, not vetted production recommendations.
- Bottleneck Attention Intervention for Recovery (BAIR)The Cost of Context: Mitigating Textual Bias in Multimodal Retrieval-Augmented GenerationMay 7, 2026
- QREAMAlign Documents to Questions: Question-Oriented Document Rewriting for Retrieval-Augmented GenerationApr 19, 2026
- CoCR-RAGCoCR-RAG: Enhancing Retrieval-Augmented Generation in Web Q&A via Concept-oriented Context ReconstructionMar 25, 2026
- Jan 26, 2026
- Jan 19, 2026
- Sep 22, 2025
- Contextual Influence Value (CI value)Influence Guided Context Selection for Effective Retrieval-Augmented GenerationSep 21, 2025