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Serguei Barannikov

12 accepted papers

2025

Feature-Level Insights into Artificial Text Detection with Sparse Autoencoders

ACL 2025finding

Artificial Text Detection (ATD) is becoming increasingly important with the rise of advanced Large Language Models (LLMs). Despite numerous efforts, no single algorithm performs consistently well across different types of unseen text or guarantees effective generalization to new LLMs. Interpretabili…

2025

Quantifying Logical Consistency in Transformers via Query-Key Alignment

EMNLP 2025

Large language models (LLMs) excel at many NLP tasks, yet their multi-step logical reasoning remains unreliable. Existing solutions such as Chain-of-Thought prompting generate intermediate steps but provide no internal check of their logical coherence. In this paper, we use the “QK-score”, a lightwe

Cited by 0SourcePDFScholar
2025

RTD-Lite: Scalable Topological Analysis for Comparing Weighted Graphs in Learning Tasks

AISTATS 2025poster

Topological methods for comparing weighted graphs are valuable in various learning tasks but often suffer from computational inefficiency on large datasets. We introduce RTD-Lite, a scalable algorithm that efficiently compares topological features, specifically connectivity or cluster structures at…

Cited by 0SourcecodeScholar
2024

Disentanglement Learning via Topology

ICML 2024poster

We propose TopDis (Topological Disentanglement), a method for learning disentangled representations via adding a multi-scale topological loss term. Disentanglement is a crucial property of data representations substantial for the explainability and robustness of deep learning models and a step towar…

2024

Robust AI-Generated Text Detection by Restricted Embeddings

EMNLP 2024finding

Growing amount and quality of AI-generated texts makes detecting such content more difficult. In most real-world scenarios, the domain (style and topic) of generated data and the generator model are not known in advance. In this work, we focus on the robustness of classifier-based detectors of AI-ge…

2024

Scalar Function Topology Divergence: Comparing Topology of 3D Objects

ECCV 2024poster

"We propose a new topological tool for computer vision - Scalar Function Topology Divergence (SFTD), which measures the dissimilarity of multi-scale topology between sublevel sets of two functions having a common domain. Functions can be defined on an undirected graph or Euclidean space of any dimen…

2023

Intrinsic Dimension Estimation for Robust Detection of AI-Generated Texts

NeurIPS 2023poster

Rapidly increasing quality of AI-generated content makes it difficult to distinguish between human and AI-generated texts, which may lead to undesirable consequences for society. Therefore, it becomes increasingly important to study the properties of human texts that are invariant over text domains…

2023

Learning topology-preserving data representations

ICLR 2023poster

We propose a method for learning topology-preserving data representations (dimensionality reduction). The method aims to provide topological similarity between the data manifold and its latent representation via enforcing the similarity in topological features (clusters, loops, 2D voids, etc.) and…

2022

Acceptability Judgements via Examining the Topology of Attention Maps

EMNLP 2022finding

The role of the attention mechanism in encoding linguistic knowledge has received special interest in NLP. However, the ability of the attention heads to judge the grammatical acceptability of a sentence has been underexplored. This paper approaches the paradigm of acceptability judgments with topol…

2022

Representation Topology Divergence: A Method for Comparing Neural Network Representations.

ICML 2022spotlight

Comparison of data representations is a complex multi-aspect problem. We propose a method for comparing two data representations. We introduce the Representation Topology Divergence (RTD) score measuring the dissimilarity in multi-scale topology between two point clouds of equal size with a one-to-o…

2021

Artificial Text Detection via Examining the Topology of Attention Maps

EMNLP 2021main

The impressive capabilities of recent generative models to create texts that are challenging to distinguish from the human-written ones can be misused for generating fake news, product reviews, and even abusive content. Despite the prominent performance of existing methods for artificial text detect…

2021

Manifold Topology Divergence: a Framework for Comparing Data Manifolds.

NeurIPS 2021poster

We propose a framework for comparing data manifolds, aimed, in particular, towards the evaluation of deep generative models. We describe a novel tool, Cross-Barcode(P,Q), that, given a pair of distributions in a high-dimensional space, tracks multiscale topology spacial discrepancies between manifol…