Search Results for author: Sasho Nedelkoski

Found 12 papers, 6 papers with code

Leveraging Log Instructions in Log-based Anomaly Detection

1 code implementation7 Jul 2022 Jasmin Bogatinovski, Gjorgji Madjarov, Sasho Nedelkoski, Jorge Cardoso, Odej Kao

Artificial Intelligence for IT Operations (AIOps) describes the process of maintaining and operating large IT systems using diverse AI-enabled methods and tools for, e. g., anomaly detection and root cause analysis, to support the remediation, optimization, and automatic initiation of self-stabilizing IT activities.

Anomaly Detection

Failure Identification from Unstable Log Data using Deep Learning

1 code implementation6 Apr 2022 Jasmin Bogatinovski, Sasho Nedelkoski, Li Wu, Jorge Cardoso, Odej Kao

Our experimental results demonstrate that the learned subprocesses representations reduce the instability in the input, allowing CLog to outperform the baselines on the failure identification subproblems - 1) failure detection by 9-24% on F1 score and 2) failure type identification by 7% on the macro averaged F1 score.

Data-Driven Approach for Log Instruction Quality Assessment

1 code implementation6 Apr 2022 Jasmin Bogatinovski, Sasho Nedelkoski, Alexander Acker, Jorge Cardoso, Odej Kao

We start with an in-depth analysis of quality log instruction properties in nine software systems and identify two quality properties: 1) correct log level assignment assessing the correctness of the log level, and 2) sufficient linguistic structure assessing the minimal richness of the static text necessary for verbose event description.

Robust and Transferable Anomaly Detection in Log Data using Pre-Trained Language Models

no code implementations23 Feb 2021 Harold Ott, Jasmin Bogatinovski, Alexander Acker, Sasho Nedelkoski, Odej Kao

To that end, we utilize pre-trained general-purpose language models to preserve the semantics of log messages and map them into log vector embeddings.

Anomaly Detection

Autoencoder-based Condition Monitoring and Anomaly Detection Method for Rotating Machines

no code implementations27 Jan 2021 Sabtain Ahmad, Kevin Styp-Rekowski, Sasho Nedelkoski, Odej Kao

We demonstrate the effectiveness of the proposed method by employing two rotating machine datasets and the quality of the automatically learned features is compared with a set of handcrafted features by training an Isolation Forest model on either of these two sets.

Anomaly Detection

Artificial Intelligence for IT Operations (AIOPS) Workshop White Paper

no code implementations15 Jan 2021 Jasmin Bogatinovski, Sasho Nedelkoski, Alexander Acker, Florian Schmidt, Thorsten Wittkopp, Soeren Becker, Jorge Cardoso, Odej Kao

Finally, all this will result in faster adoption of AIOps, further increase the interest in this research field and contribute to bridging the gap towards fully-autonomous operating IT systems.

Decision Making Management

Multi-Source Anomaly Detection in Distributed IT Systems

no code implementations13 Jan 2021 Jasmin Bogatinovski, Sasho Nedelkoski

Finally, we demonstrate that this formalization allows for the learning of template embedding for both the traces and logs.

Anomaly Detection

Learning more expressive joint distributions in multimodal variational methods

1 code implementation8 Sep 2020 Sasho Nedelkoski, Mihail Bogojeski, Odej Kao

Through several experiments, we demonstrate that the model improves on state-of-the-art multimodal methods based on variational inference on various computer vision tasks such as colorization, edge and mask detection, and weakly supervised learning.

Colorization Variational Inference +1

Self-Attentive Classification-Based Anomaly Detection in Unstructured Logs

no code implementations21 Aug 2020 Sasho Nedelkoski, Jasmin Bogatinovski, Alexander Acker, Jorge Cardoso, Odej Kao

We propose Logsy, a classification-based method to learn log representations in a way to distinguish between normal data from the system of interest and anomaly samples from auxiliary log datasets, easily accessible via the internet.

Anomaly Detection Classification +1

Superiority of Simplicity: A Lightweight Model for Network Device Workload Prediction

1 code implementation7 Jul 2020 Alexander Acker, Thorsten Wittkopp, Sasho Nedelkoski, Jasmin Bogatinovski, Odej Kao

First, KPI types like CPU utilization or allocated memory are very different and hard to be expressed by the same model.

Time Series Forecasting

Self-Supervised Log Parsing

2 code implementations17 Mar 2020 Sasho Nedelkoski, Jasmin Bogatinovski, Alexander Acker, Jorge Cardoso, Odej Kao

This allows the coupling of the MLM as pre-training with a downstream anomaly detection task.

Anomaly Detection Fault Detection +4

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