News
GDN 2024 Springer Proceedings
- Details
- Hits: 55
From June 2-5, the 24th conference on Group Decision and Negotiation (GDN) took place in Porto, jointly with the ICDSST conference organized by EWG-DSS. Papers submitted to the GDN conference are typically published in two types of post-conference proceedings: local proceedings, published by the organizer (in 2024, the University of Porto), and Springer proceedings, published as part of the Lecture Notes in Business Information Processing (LNBIP) series. The co-editor of this year's GDN LNBIP volume (No. 509) was Professor Tomasz Wachowicz, and the entire editorial team included Marta Campos Fereira (University of Porto), Pascale Zarate (University of Toulouse), and Yu Maemura (University of Tokyo). Conference participants received free four-month electronic access to the volume. It is also available for purchase on the publisher's website: https://link.springer.com/book/10.1007/978-3-031-59373-4
Normalizing criteria weights
- Details
- Hits: 63
Today, an interesting article by Prof. Ewa Roszkowska and Tomasz Wachowicz was published in the journal Entropy. It discusses the use of entropy concepts for generating weights in a multi-criteria decision-making problem and their impact on the ranking outcomes of decision variants. The work utilized the Hellwig method for positioning EU countries based on the degree of sustainable development in education. It highlights ambiguities stemming from the often-used double normalization in the analytical process (one for determining entropy weights, the other related to the Hellwig method itself) and shows that observing individual decision cases can lead to illusory beliefs about the similarity of results obtained for different analytical combinations. Although in the problem of sustainable development of education, choosing different analytical methods led to different weights but similar rankings of variants, it turned out that this is due to special correlational relationships between evaluation criteria. In cases where these correlations are eliminated, the differences in both weights and rankings can be very significant.
The article is available directly at the link: https://www.mdpi.com/1099-4300/26/5/365
Another paper by N.EA team in Decision journal
- Details
- Hits: 83
The latest article by the N.EA. team reporting the results of an experimental study comparing two decision-making style recognition tools, the REI (Rational-Experiential Inventory) and GDMS (General Decision Making Style), has been published on the website of the "Decision" journal published by Springer. The presented results indicate that despite similarities in the categorization of decision-making styles, both tools identify different intensities of analytical thinking and intuitiveness for the same decision-maker, which may lead to differences (and even conflicts) in the conclusions drawn when attempting to build models relating various phenomena to decision-making style.
The paper can be accessed under the following link: https://doi.org/10.1007/s40622-024-00373-4.
Call for papers and participation in GDN 2024
- Details
- Hits: 104
In recent days, the organizers of the GDN 2024 conference have sent out a second call for papers and participation. The GDN conference (Group Decision and Negotiation) is held annually by the GDN section of the INFORMS society, and in 2024, the hosting institution for this event will be the Faculty of Engineering at the University of Porto. GDN will take place from June 1st to June 5th alongside the Decision Support System Technology conference organized by the EWG-DSS working group. A thematic stream dedicated to modeling preferences in group decisions and negotiations will be organized as part of the conference. The hosts for this track are Professor Danielle Morais from the Federal University of Pernambuco in Recife (Brazil) and Professor Tomasz Wachowicz from the University of Economics in Katowice.
Plenary lecture at the MZBO 2023 conference
- Details
- Hits: 108
From October 15th to 17th, 2023, the XLI Nationwide Scientific Conference on Methods and Applications of Operations Research (MZBO) took place in Lipowy Most (Poland). This annual conference is organized by departments dealing with operations research and quantitative modeling of Polish Universities and is dedicated to modeling decision problems of various types and contexts. During this year's conference, one of the plenary lectures was delivered by Professor Tomasz Wachowicz. The lecture was titled "Analysis and Support of Negotiations – From Formal Models of Preferences, Through Behavioral Operational Research, to Cognitive Electronic Support Systems." It focused on the evolution of the formal approach to the analysis and support of negotiations.