Karl Stampfer

Dr. Karl Stampfer

University of Natural Resources and Life Sciences, Vienna, Vienna, Wien, Austria
orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 April 2022 in Sensors
Verified
Journal Article
Open access
PDF file
Andreas HolzingerAndreas Holzinger
Andreas Holzinger
ASAnna Saranti
Anna Saranti
Alessa AngerschmidAlessa Angerschmid
Alessa Angerschmid
Carl Orge RetzlaffCarl Orge Retzlaff
Carl Orge Retzlaff
Andreas GronauerAndreas Gronauer
Andreas Gronauer
Karl StampferKarl Stampfer
Karl Stampfer
The main impetus for the global efforts toward the current digital transformation in almost all areas of our daily lives is due to the great successes of artificial intelligence (AI), and in particular, the workhorse of AI, statistical machine learning (ML). The intelligent analysis, modeling, and management of agricultural and forest ecosystems, and of the use and protection of soils, already play important roles in securing our planet for future generations and will become irreplaceable in the future. Technical solutions must encompass the entire agricultural and forestry value chain. The process of digital transformation is supported by cyber-physical systems enabled by advances in ML, the availability of big data and increasing computing power. For certain tasks, algorithms today achieve performances that exceed human levels. The challenge is to use multimodal information fusion, i.e., to integrate data from different sources (sensor data, images, *omics), and explain to an expert why a certain result was achieved. However, ML models often react to even small changes, and disturbances can have dramatic effects on their results. Therefore, the use of AI in areas that matter to human life (agriculture, forestry, climate, health, etc.) has led to an increased need for trustworthy AI with two main components: explainability and robustness. One step toward making AI more robust is to leverage expert knowledge. For example, a farmer/forester in the loop can often bring in experience and conceptual understanding to the AI pipeline—no AI can do this. Consequently, human-centered AI (HCAI) is a combination of “artificial intelligence” and “natural intelligence” to empower, amplify, and augment human performance, rather than replace people. To achieve practical success of HCAI in agriculture and forestry, this article identifies three important frontier research areas: (1) intelligent information fusion; (2) robotics and embodied intelligence; and (3) augmentation, explanation, and verification for trusted decision support. This goal will also require an agile, human-centered design approach for three generations (G). G1: Enabling easily realizable applications through immediate deployment of existing technology. G2: Medium-term modification of existing technology. G3: Advanced adaptation and evolution beyond state-of-the-art.

1 February 2014 in Safety Science
Verified
Journal Article
Closed access
Petros A. TsiorasPetros A. Tsioras
Petros A. Tsioras
CRChristian Rottensteiner
Christian Rottensteiner
Karl StampferKarl Stampfer
Karl Stampfer

7 September 2010 in European Journal of Forest Research
Verified
Journal Article
Closed access
PDF file
FHFranz Holzleitner
Franz Holzleitner
CKChristian Kanzian
Christian Kanzian
Karl StampferKarl Stampfer
Karl Stampfer

25 January 2024 in Sensors
Verified
Journal Article
Open access
PDF file
FEFlorian Ehrlich-Sommer
Florian Ehrlich-Sommer
FHFerdinand Hönigsberger
Ferdinand Hönigsberger
CGChristoph Gollob
Christoph Gollob
ANArne Nothdurft
Arne Nothdurft
Karl StampferKarl Stampfer
Karl Stampfer
Andreas HolzingerAndreas Holzinger
Andreas Holzinger
Smart forestry, an innovative approach leveraging artificial intelligence (AI), aims to enhance forest management while minimizing the environmental impact. The efficacy of AI in this domain is contingent upon the availability of extensive, high-quality data, underscoring the pivotal role of sensor-based data acquisition in the digital transformation of forestry. However, the complexity and challenging conditions of forest environments often impede data collection efforts. Achieving the full potential of smart forestry necessitates a comprehensive integration of sensor technologies throughout the process chain, ensuring the production of standardized, high-quality data essential for AI applications. This paper highlights the symbiotic relationship between human expertise and the digital transformation in forestry, particularly under challenging conditions. We emphasize the human-in-the-loop approach, which allows experts to directly influence data generation, enhancing adaptability and effectiveness in diverse scenarios. A critical aspect of this integration is the deployment of autonomous robotic systems in forests, functioning both as data collectors and processing hubs. These systems are instrumental in facilitating sensor integration and generating substantial volumes of quality data. We present our universal sensor platform, detailing our experiences and the critical importance of the initial phase in digital transformation—the generation of comprehensive, high-quality data. The selection of appropriate sensors is a key factor in this process, and our findings underscore its significance in advancing smart forestry.

1 January 2012 in Silva Fennica
Verified
Journal Article
Open access
GEGernot Erber
Gernot Erber
CKChristian Kanzian
Christian Kanzian
Karl StampferKarl Stampfer
Karl Stampfer
Determining the moisture content of naturally dried fuel stock without frequent measuring is a problem still unsolved. Modelling moisture content based on automatically captured meteorological data could provide a solution. An accurate model would allow the drying period and the point of chipping to be optimised. For the experimental study, a metal frame supported by load sensors and loaded with 17 tons of logwood was set up next to a meteorological station. A multiple linear regression model was used to link meteorological and load data to provide a formula for determining the moisture content. The pile dried for a period of 14 months (average temperature of 7.3 °C, a humidity of 81%, and 777 mm of rainfall). The overall moisture content dropped from 50.1% to 32.2%. The regression model, which based on daily means and sums of meteorological parameters, provided a mean deviance from the observed curve of –0.51%±0.71% within the period of investigation. Relative humidity was found to be most important parameter in drying. Increased moisture content resulting from rainfall greater than 30 mm per day reverted back to pre-rainfall values within two to three days, if no other rainfall events followed. Covering the pile would have a positive effect on the drying performance. In terms of economic benefit it could be shown that natural drying is beneficial. Overall this study shows that meteorological data used in site specific drying models can adequately predict the moisture content of naturally dried logwood.

1 January 2013 in Silva Fennica
Verified
Journal Article
Open access
CRChristian Rottensteiner
Christian Rottensteiner
Petros A. TsiorasPetros A. Tsioras
Petros A. Tsioras
HNHeinz Neumayer
Heinz Neumayer
Karl StampferKarl Stampfer
Karl Stampfer