Search Results for author: Zahra Ahmadi

Found 5 papers, 1 papers with code

MTS2Graph: Interpretable Multivariate Time Series Classification with Temporal Evolving Graphs

no code implementations6 Jun 2023 Raneen Younis, Abdul Hakmeh, Zahra Ahmadi

Hence, in this work, we introduce a new framework for interpreting multivariate time series data by extracting and clustering the input representative patterns that highly activate CNN neurons.

Graph Embedding Time Series +1

MANDO: Multi-Level Heterogeneous Graph Embeddings for Fine-Grained Detection of Smart Contract Vulnerabilities

1 code implementation28 Aug 2022 Hoang H. Nguyen, Nhat-Minh Nguyen, Chunyao Xie, Zahra Ahmadi, Daniel Kudendo, Thanh-Nam Doan, Lingxiao Jiang

Moreover, it develops a multi-metapath heterogeneous graph attention network to learn multi-level embeddings of different types of nodes and their metapaths in the heterogeneous contract graphs, which can capture the code semantics of smart contracts more accurately and facilitate both fine-grained line-level and coarse-grained contract-level vulnerability detection.

Graph Attention Vulnerability Detection

Focusing Knowledge-based Graph Argument Mining via Topic Modeling

no code implementations3 Feb 2021 Patrick Abels, Zahra Ahmadi, Sophie Burkhardt, Benjamin Schiller, Iryna Gurevych, Stefan Kramer

We use a topic model to extract topic- and sentence-specific evidence from the structured knowledge base Wikidata, building a graph based on the cosine similarity between the entity word vectors of Wikidata and the vector of the given sentence.

Argument Mining Decision Making +3

Online Multi-Label Classification: A Label Compression Method

no code implementations4 Apr 2018 Zahra Ahmadi, Stefan Kramer

Many modern applications deal with multi-label data, such as functional categorizations of genes, image labeling and text categorization.

Classification Dimensionality Reduction +3

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