Publications by authors named "A V Surkov"

Article Synopsis
  • Recent advancements in large language models (LLMs) have the potential to improve conversational agents in mental healthcare, but challenges such as limited training data and privacy concerns persist.
  • A proposed solution involves leveraging human-AI annotation systems based on public domain discussions on social media, which require extensive cleaning to be effective.
  • Our research shows that while zero-shot classification offers some benefits for categorizing discussions about psychiatric disorders, fine-tuning LLMs significantly enhances accuracy, though it comes with a trade-off in processing speed.
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The random forest algorithm is one of the most popular and commonly used algorithms for classification and regression tasks. It combines the output of multiple decision trees to form a single result. Random forest algorithms demonstrate the highest accuracy on tabular data compared to other algorithms in various applications.

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Topic modeling is a widely used instrument for the analysis of large text collections. In the last few years, neural topic models and models with word embeddings have been proposed to increase the quality of topic solutions. However, these models were not extensively tested in terms of stability and interpretability.

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Human history has been shaped by global dispersals of technologies, although understanding of what enabled these processes is limited. Here, we explore the behavioural mechanisms that led to the emergence of pottery among hunter-gatherer communities in Europe during the mid-Holocene. Through radiocarbon dating, we propose this dispersal occurred at a far faster rate than previously thought.

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The Arctic is warming faster than any other region on Earth. Putting this rapid warming into perspective is challenging because instrumental records are often short or incomplete in polar regions and precisely-dated temperature proxies with high temporal resolution are largely lacking. Here, we provide this long-term perspective by reconstructing past summer temperature variability at Yamal Peninsula - a hotspot of recent warming - over the past 7638 years using annually resolved tree-ring records.

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