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abstract indexed · arXiv 2610.21383 · updated 2026-10-18

Calibration Language Shapes Block-Influence Pruning in Multilingual Language Models

First page of Calibration Language Shapes Block-Influence Pruning in Multilingual Language Models
From the original paper · arXiv 2610.21383Page 1. Select the image to read the PDF.

It replaces English-only calibration of Block-Influence scores for depth pruning with equal-budget multilingual calibration when pruning small models for Indian-language workloads. The cost is obtaining disjoint in-language calibration data and recomputing BI per language before averaging; no extra inference-time memory or latency is added, and pruning itself reduces deployment footprint. It can fail per architecture: on Llama-3.2-1B the balanced calibration severely harms held-out Tamil at two removed blocks, and at larger pruning budgets the selected blocks converge and perplexity collapses regardless of calibration.

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recommendation
test
research area
sparsity and pruning
technical change
Multilingual calibration for Block-Influence depth pruning
published
2026-10-15

The reader can run this cheaply on a single 24 GB GPU if they prune multilingual models, but the paper itself frames the result as a diagnostic requiring per-architecture and per-budget validation, so adoption without workload-specific testing is not justified.

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  1. claim 01Paperraft inference
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    It replaces English-only calibration of Block-Influence scores for depth pruning with equal-budget multilingual calibration when pruning small models for Indian-language workloads. The cost is obtaining disjoint in-language calibration data and recomputing BI per language before averaging; no extra inference-time memory or latency is added, and pruning itself reduces deployment footprint. It can fail per architecture: on Llama-3.2-1B the balanced calibration severely harms held-out Tamil at two removed blocks, and at larger pruning budgets the selected blocks converge and perplexity collapses regardless of calibration.

    This is a Paperraft inference. It is not pinned to a verified PDF passage.

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  2. claim 02Paperraft inference

    Late-block BI is 20.7-55.5% higher for Hindi, Marathi, and Tamil than for English; equal-budget English-Hindi-Marathi calibration mitigates post-pruning perplexity damage for Qwen at six removed blocks and for Gemma at all tested depths, including held-out Tamil, but the effect is architecture- and budget-dependent rather than a universal factor.

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arXiv 2610.21383

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