Jakub Tkaczuk


Last Name

Tkaczuk

First Name

Jakub

ORCID

0000-0001-7997-9423

Organisational unit

09746 - Tilley, Elizabeth / Tilley, Elizabeth

Filters

2024 - 20253
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Publications 1 - 3 of 3
  • Willingness to pay for and economic feasibility of solid waste management in Cape Maclear, Malawi
    Item type: Journal Article
    Abgottspon, Elena; Freihardt, Jan; Tkaczuk, Jakub; et al. (2025)
    Resources, Conservation & Recycling Advances
    Improving solid waste management (SWM) can better public health locally and mitigate climate change globally. However, it requires thorough financing and business models. This study assessed the willingness to pay (WTP) of four stakeholder groups in the village Cape Maclear, Malawi, using the double-bounded dichotomous choice contingent valuation method as well as direct questions. Households (N 259) would be willing to pay an average of MWK 1507 (USD 0.90) per month if they did not have to separate their waste themselves, as opposed to MWK 899 (USD 0.54) per month if they had to separate their waste at the collection point. Lodges were willing to pay USD 13.00 per month for their own waste management and an additional USD 4.22 for public waste removal. The WTP of businesses was assumed to be zero due to an unrepresentative sample. Tourists were found to have an average WTP of USD 1.75 per day. We recommend a sustainable business model based on all cost and revenue streams of the system. Thereby, tourists show the greatest potential. Nevertheless, it is recommended to make the monthly operation of the system independent from external sources, but to use these sources for long-term investments and infrastructure improvements.
  • Autocrime - open multimodal platform for combating organized crime
    Item type: Journal Article
    Madikeri, Srikanth; Motlicek, Petr; Sanchez-Cortes, Dairazalia; et al. (2025)
    Forensic Science International: Digital Investigation
    A criminal investigation is a labor-intensive work requiring expert knowledge from several disciplines. Due to a large amount of heterogeneous data available from several modalities (i.e., audio/speech, text, video, non-content data), its processing raises many challenges. It may become impossible for law enforcement agents to deal with large amounts of highly-diverse data, especially for cross-border investigations focused on organized crime. ROXANNE EC H2020 project developed an all-in-one investigation platform for processing such diverse data. The platform mainly focuses on analyzing lawfully intercepted telephone conversations extended by non-content data (e.g., metadata related to the calls, time/spatial positions, and data collected from social media). Several state-of-the-art components are integrated into the pipeline, including speaker identification, automatic speech recognition, and named entity detection. With information extracted from this pipeline, the platform builds multiple knowledge graphs that capture phone and speaker criminal network interactions, including the central network and their clans. After hands-on sessions, law enforcement agents found the Autocrime platform easy to understand and highlighted its innovative, multi-technology functionalities that streamline forensic investigations, reducing manual effort. The AI-powered platform marks a significant first step toward creating an open investigative tool that combines advanced speech, text, and video processing algorithms with criminal network analysis, aimed at mitigating organized crime.
  • Community-wide Waste Management System for Cape Maclear
    Item type: Report
    Tilley, Elizabeth; Tkaczuk, Jakub (2024)
    Five students from ETH Zürich completed their Master’s theses at the chair of Global Health Engineering. They spent two months in the town of Cape Maclear, Malawi and four months in Zürich, Switzerland trying to establish a community-wide waste management system. This policy brief presents the results: a comprehensive proposal for developing and implementing a solid waste collection system for Cape Maclear. The study provides detailed insights into waste quantification, characterization, and management strategies for various waste fractions based on the research. This brief also presents a village-wide map, a population estimation, and a financial feasibility assessment. It concludes with recommendations for a conservative business model, emphasizing the importance of realistic stakeholder participation and payment compliance in implementing a successful solid waste management program.
Publications 1 - 3 of 3