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Showing papers from CISPA Helmholtz Center for Information Security Show all papers

45%Niche pick
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Causal Discovery under Time-Varying Delays

Lénaïg Cornanguer, David Kaltenpoth, Jilles Vreeken

Sydney Poster Session 6, Thu, Dec 10, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

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AI panel: 0 of 20 reviewers recommend it
lenient 0/5
medium 0/10
strict 0/5
45%Niche pick
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AC/DC on a Budget -- Alternating Sparse Phases

Rahul Nittala, Advait Gadhikar, Tom Jacobs, Rebekka Burkholz

Sydney Poster Session 4, Wed, Dec 9, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

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AI panel: 0 of 20 reviewers recommend it
lenient 0/5
medium 0/10
strict 0/5
45%Niche pick
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RADIUM: RadioActive Decay of Image-Underlaid Marks

Michel Meintz, Louis Kerner, Maitri V Shah, Simon Hector and 2 more

Sydney Poster Session 3, Wed, Dec 9, 10:00 AM–1:00 PM, Hall 1-4 · Published 2026

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AI panel: 0 of 20 reviewers recommend it
lenient 0/5
medium 0/10
strict 0/5
67%Highly rated
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Benchmarking Membership Privacy Risks in Preference-Based LLM Post-Training

Lorenzo Rossi, Kaif Shaikh, Franziska Boenisch, Adam Dziedzic

Sydney Poster Session 5, Thu, Dec 10, 10:00 AM–1:00 PM, Hall 1-4 · Published 2026

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2/20 AI panelreviewers recommend it

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AI panel: 2 of 20 reviewers recommend it
lenient 1/5
medium 1/10
strict 0/5
67%Highly rated
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Auditing Privacy Leakage in Tabular Foundation Model Embeddings

Xun Wang, Adam Dziedzic, Michael Backes, Franziska Boenisch

Sydney Poster Session 3, Wed, Dec 9, 10:00 AM–1:00 PM, Hall 1-4 · Published 2026

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AI panel: 2 of 20 reviewers recommend it
lenient 1/5
medium 1/10
strict 0/5
45%Niche pick
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$\text{PartConcepts}$: A Unified Mechanism for Fine-Grained Part Localization and Generation

Vaibhav Agrawal, Varghese P Kuruvilla, Harsh Rangwani, Ravi Kiran Sarvadevabhatla

Sydney Poster Session 3, Wed, Dec 9, 10:00 AM–1:00 PM, Hall 1-4 · Published 2026

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AI panel: 0 of 20 reviewers recommend it
lenient 0/5
medium 0/10
strict 0/5
57%Worth a look
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Fiedler-Regularized Causal Discovery for Sparse Connected DAGs

Amine M'Charrak, Abbavaram Gowtham Reddy, Thomas Lukasiewicz, Michael Bronstein and 1 more

Sydney Poster Session 6, Thu, Dec 10, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

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AI panel: 1 of 20 reviewers recommend it
lenient 1/5
medium 0/10
strict 0/5
57%Worth a look
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Learning When to Think: Dual-Reference Offline Optimization for Adaptive VLM Reasoning

Hongbin Lin, Sizhe Zou, Juangui Xu, Xinyue Xu and 5 more

Sydney Poster Session 2, Tue, Dec 8, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

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AI panel: 1 of 20 reviewers recommend it
lenient 1/5
medium 0/10
strict 0/5
57%Worth a look
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RoSA: Rotational Sparse Adaptation for Memory-Efficient Fine-Tuning

Muhammad Azeem Lodhi, chao zhou, Rebekka Burkholz

Paris Poster Session 4, Thu, Dec 10, 5:30 PM–7:30 PM, Paris Poster Hall · Published 2026

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AI panel: 1 of 20 reviewers recommend it
lenient 1/5
medium 0/10
strict 0/5
71%Highly rated
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Optimal Rates for Pure $\varepsilon$-Differentially Private Stochastic Convex Optimization with Heavy Tails

Pure ε-DP heavy-tailed stochastic convex optimization achieves minimax optimal excess risk via polynomial-time private Lipschitz extension optimization, including deterministic algorithms for structured losses with unbounded gradients.

Andrew Lowy

Atlanta Poster Session 4, Thu, Dec 10, 4:30 PM–7:30 PM, Hall C1 · Published 2026

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7/20 AI panelreviewers recommend it

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AI panel: 7 of 20 reviewers recommend it
lenient 2/5
medium 2/10
strict 3/5
80%Must read
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Amortized Linear-time Exact Shapley Value for Product-Kernel Methods

PKeX-Shapley computes exact Shapley values for product-kernel methods via a distribution-free removal operator, achieving amortized linear-time per feature without sampling or density estimation and extending to MMD and HSIC.

Majid Mohammadi, Siu Lun (Alan) Chau, Krikamol Muandet

Paris Poster Session 1, Wed, Dec 9, 12:30 PM–2:30 PM, Paris Poster Hall · Published 2026

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12/20 AI panelreviewers recommend it

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AI panel: 12 of 20 reviewers recommend it
lenient 5/5
medium 6/10
strict 1/5
83%Must read
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Closing the Indexing-Decoding Gap in Multimodal Generative Retrieval via Prefix Retention Optimization

PRO closes the indexing-decoding gap in multimodal generative retrieval via prefix ranking distillation, vocabulary scheduling, and geometric score fusion to improve beam search retention and retrieval accuracy.

Yufei Chen, Zihan Wang, Yubao Tang, Yukun Zhao and 2 more

Paris Poster Session 6, Fri, Dec 11, 2:30 PM–4:30 PM, Paris Poster Hall · Published 2026

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13/20 AI panelreviewers recommend it

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AI panel: 13 of 20 reviewers recommend it
lenient 2/5
medium 8/10
strict 3/5
80%Must read
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Natural Synthesis: Outperforming Reactive Synthesis Tools with Large Reasoning Models

A neuro-symbolic approach couples large reasoning models with model checkers to iteratively repair synthesized Verilog via sound symbolic feedback, solving more benchmarks than dedicated synthesis tools and enabling natural-language specification autoformalization.

Frederik Schmitt, Matthias Cosler, Niklas Metzger, Julian Siber and 3 more

Sydney Poster Session 6, Thu, Dec 10, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

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12/20 AI panelreviewers recommend it

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AI panel: 12 of 20 reviewers recommend it
lenient 4/5
medium 6/10
strict 2/5
86%Must read
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Forgetting Has Neighbors: Localized Collateral Forgetting in Machine Unlearning

Unlearning causes localized collateral forgetting that grows near deleted examples due to inconsistent surrogate targets, and local teacher distillation mitigates it.

Polina Dolgova, Sebastian Stich

Sydney Poster Session 6, Thu, Dec 10, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

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14/20 AI panelreviewers recommend it

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AI panel: 14 of 20 reviewers recommend it
lenient 4/5
medium 9/10
strict 1/5
76%Highly rated
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Root Cause Analysis of Measurement and Mechanistic Anomalies

A causal model distinguishes measurement errors from mechanism shifts via latent interventions, enabling robust root-cause localization and anomaly-type classification.

Hendrik Suhr, David Kaltenpoth, Jilles Vreeken

Sydney Poster Session 2, Tue, Dec 8, 5:00 PM–8:00 PM, Hall 1-4 · Published 2026

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10/20 AI panelreviewers recommend it

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AI panel: 10 of 20 reviewers recommend it
lenient 4/5
medium 6/10
strict 0/5
72%Highly rated
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Prune to Protect: Faster Training and Enhanced Privacy by Dynamic Data Pruning

WLIB dynamically prunes easy samples and reweights hard ones to reduce memorization, improve privacy, and speed up training.

Chinmay Joshi, Advait Gadhikar, Celia Rubio-Madrigal, Aneet Kumar Dutta and 2 more

Paris Poster Session 5, Fri, Dec 11, 11:30 AM–1:30 PM, Paris Poster Hall · Published 2026

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8/20 AI panelreviewers recommend it

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AI panel: 8 of 20 reviewers recommend it
lenient 5/5
medium 3/10
strict 0/5