Essays about: "David Öhman"

Found 2 essays containing the words David Öhman.

1. 1. Summarization and keyword extraction on customer feedback data : Comparing different unsupervised methods for extracting trends and insight from text

   University essay from Umeå universitet/Institutionen för matematik och matematisk statistik

   Author : Therése Skoghäll; David Öhman; [2022]
   Keywords : Unsupervised learning; Natural Language Processing; Text Summarization; Keyword Extraction; K-means; YAKE!; BERT;

   Abstract : Polestar has during the last couple of months more than doubled its amount of customer feedback, and the forecast for the future is that this amount will increase even more. Manually reading this feedback is expensive and time-consuming, and for this reason there's a need to automatically analyse the customer feedback. READ MORE

3. 2. Transcriptomes of Populus lines modified in Pectin methylesterase expression reveal activation of oxidative stress signaling pathways

   University essay from SLU/Dept. of Forest Genetics and Plant Physiology

   Author : David Öhman; [2006]
   Keywords : Populus spp.; tyloses; wood formation; callose; oligogalacturonic acid; oxidative stress signaling pathways; pectin methylesterase; microarray; peroxidase activity; H2O2;

   Abstract : Pectin methylesterases (PMEs) catalyze the demethylesterification of cell wall polygalacturonans, and this is thought to play important roles in cell wall extensibility and intercellular adhesion. In addition, PMEs influence many physiological processes, such as stem elongation, root development, fertilization, fruit softening, and xylogenesis. READ MORE