Durham
'The search is soul-destroying': Young jobseekers on the struggle to find work
'The search is soul-destroying': Young jobseekers on the struggle to find work Young people are bearing the brunt of the UK's weak labour market, according to new figures from the Office for National Statistics (ONS). Some 16.1% of people aged 16 to 24 are not able to find work, compared to a national unemployment figure of 5.1%. That does not include young people who are out of work but not looking for a job, due to ill health or who are still studying. Businesses, particularly in sectors that traditionally gave young people their first jobs, like retail and hospitality, say higher costs are leading them to cut staff or not take on new hires, which often hits young workers the hardest. But graduate-level roles are also proving harder to land.
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UK basks in sunshine ahead of snow and ice weather warnings
After days and weeks of gloomy skies and relentless rain for some, there has finally been a change to our weather in the United Kingdom. Arctic air across the UK means the weekend starts cold and frosty with some snow and ice, especially in northern parts. But, there will be lots of sunshine for most throughout Saturday. However, it will be temporary as rain with more snow and ice spreads overnight into Sunday. Further Met Office yellow warnings for ice and snow have been issued across Scotland and northern England from 21:00 GMT to 10:00 on Sunday.
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Catfishing a conman back on dating app days after jail release
Within days of being released from his seventh prison term for romance fraud, Raymond McDonald was back on a dating app looking for his next victim. Over more than 20 years he had racked up 58 convictions, mostly for fraud and theft, while telling lies on an industrial scale and taking thousands of pounds from women for holidays and weddings which were never going to happen. This time when he went looking, the BBC was waiting. He thought he was having a date with Kaye, but instead found himself being approached by a BBC reporter and camera crew. He had met Kaye online and, calling himself Rob, told her he was a deep-sea diver looking for a wife.
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Sutton's predictions v Gladiators star Apollo
Having won only one of their past six Premier League games and drawn 2-2 at Tottenham after being 2-0 up, can second-placed Manchester City get back on track at Liverpool on Sunday? I wouldn't rule City out of anything at the moment said BBC Sport football expert Chris Sutton. But the way they folded in the second half against Tottenham was a real worry. Sutton is making predictions for all 380 Premier League games this season, against AI, BBC Sport readers and a variety of guests. His guest for week 25 is Gladiators star Apollo, real name Alex Gray, who supports Newcastle . Before becoming a Gladiator, the 6ft 6in Gray played Premiership rugby for three teams and also American Football for NFL side Atlanta Falcons.
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Botany Meets Robotics in Alpine Scree Monitoring
De Benedittis, Davide, Di Lorenzo, Giovanni, Angelini, Franco, Valle, Barbara, Borgatti, Marina Serena, Remagnino, Paolo, Caccianiga, Marco, Garabini, Manolo
According to the European Union's Habitat Directive, habitat monitoring plays a critical role in response to the escalating problems posed by biodiversity loss and environmental degradation. Scree habitats, hosting unique and often endangered species, face severe threats from climate change due to their high-altitude nature. Traditionally, their monitoring has required highly skilled scientists to conduct extensive fieldwork in remote, potentially hazardous locations, making the process resource-intensive and time-consuming. This paper presents a novel approach for scree habitat monitoring using a legged robot to assist botanists in data collection and species identification. Specifically, we deployed the ANYmal C robot in the Italian Alpine bio-region in two field campaigns spanning two years and leveraged deep learning to detect and classify key plant species of interest. Our results demonstrate that agile legged robots can navigate challenging terrains and increase the frequency and efficiency of scree monitoring. When paired with traditional phytosociological surveys performed by botanists, this robotics-assisted protocol not only streamlines field operations but also enhances data acquisition, storage, and usage. The outcomes of this research contribute to the evolving landscape of robotics in environmental science, paving the way for a more comprehensive and sustainable approach to habitat monitoring and preservation.
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Simulated Human Learning in a Dynamic, Partially-Observed, Time-Series Environment
Jiang, Jeffrey, Hong, Kevin, Kuczynski, Emily, Pottie, Gregory
While intelligent tutoring systems (ITSs) can use information from past students to personalize instruction, each new student is unique. Moreover, the education problem is inherently difficult because the learning process is only partially observable. We therefore develop a dynamic, time-series environment to simulate a classroom setting, with student-teacher interventions - including tutoring sessions, lectures, and exams. In particular, we design the simulated environment to allow for varying levels of probing interventions that can gather more information. Then, we develop reinforcement learning ITSs that combine learning the individual state of students while pulling from population information through the use of probing interventions. These interventions can reduce the difficulty of student estimation, but also introduce a cost-benefit decision to find a balance between probing enough to get accurate estimates and probing so often that it becomes disruptive to the student. We compare the efficacy of standard RL algorithms with several greedy rules-based heuristic approaches to find that they provide different solutions, but with similar results. We also highlight the difficulty of the problem with increasing levels of hidden information, and the boost that we get if we allow for probing interventions. We show the flexibility of both heuristic and RL policies with regards to changing student population distributions, finding that both are flexible, but RL policies struggle to help harder classes. Finally, we test different course structures with non-probing policies and we find that our policies are able to boost the performance of quiz and midterm structures more than we can in a finals-only structure, highlighting the benefit of having additional information.
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Automated Analysis of Learning Outcomes and Exam Questions Based on Bloom's Taxonomy
Kumar, Ramya, Gulwani, Dhruv, Singh, Sonit
This paper explores the automatic classification of exam questions and learning outcomes according to Bloom's Taxonomy. A small dataset of 600 sentences labeled with six cognitive categories - Knowledge, Comprehension, Application, Analysis, Synthesis, and Evaluation - was processed using traditional machine learning (ML) models (Naive Bayes, Logistic Regression, Support Vector Machines), recurrent neural network architectures (LSTM, BiLSTM, GRU, BiGRU), transformer-based models (BERT and RoBERTa), and large language models (OpenAI, Gemini, Ollama, Anthropic). Each model was evaluated under different preprocessing and augmentation strategies (for example, synonym replacement, word embeddings, etc.). Among traditional ML approaches, Support Vector Machines (SVM) with data augmentation achieved the best overall performance, reaching 94 percent accuracy, recall, and F1 scores with minimal overfitting. In contrast, the RNN models and BERT suffered from severe overfitting, while RoBERTa initially overcame it but began to show signs as training progressed. Finally, zero-shot evaluations of large language models (LLMs) indicated that OpenAI and Gemini performed best among the tested LLMs, achieving approximately 0.72-0.73 accuracy and comparable F1 scores. These findings highlight the challenges of training complex deep models on limited data and underscore the value of careful data augmentation and simpler algorithms (such as augmented SVM) for Bloom's Taxonomy classification.
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Toward LLM-Supported Automated Assessment of Critical Thinking Subskills
Peczuh, Marisa C., Kumar, Nischal Ashok, Baker, Ryan, Lehman, Blair, Eisenberg, Danielle, Mills, Caitlin, Chebrolu, Keerthi, Nashi, Sudhip, Young, Cadence, Liu, Brayden, Lachman, Sherry, Lan, Andrew
Critical thinking represents a fundamental competency in today's education landscape. Developing critical thinking skills through timely assessment and feedback is crucial; however, there has not been extensive work in the learning analytics community on defining, measuring, and supporting critical thinking. In this paper, we investigate the feasibility of measuring core "subskills" that underlie critical thinking. We ground our work in an authentic task where students operationalize critical thinking: student-written argumentative essays. We developed a coding rubric based on an established skills progression and completed human coding for a corpus of student essays. We then evaluated three distinct approaches to automated scoring: zero-shot prompting, few-shot prompting, and supervised fine-tuning, implemented across three large language models (GPT-5, GPT-5-mini, and ModernBERT). GPT-5 with few-shot prompting achieved the strongest results and demonstrated particular strength on subskills with separable, frequent categories, while lower performance was observed for subskills that required detection of subtle distinctions or rare categories. Our results underscore critical trade-offs in automated critical thinking assessment: proprietary models offer superior reliability at higher cost, while open-source alternatives provide practical accuracy with reduced sensitivity to minority categories. Our work represents an initial step toward scalable assessment of higher-order reasoning skills across authentic educational contexts.
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Pattern-based Knowledge Component Extraction from Student Code Using Representation Learning
Hoq, Muntasir, Pitts, Griffin, Lan, Andrew, Brusilovsky, Peter, Akram, Bita
Effective personalized learning in computer science education depends on accurately modeling what students know and what they need to learn. While Knowledge Components (KCs) provide a foundation for such modeling, automated KC extraction from student code is inherently challenging due to insufficient explainability of discovered KCs and the open-endedness of programming problems with significant structural variability across student solutions and complex interactions among programming concepts. In this work, we propose a novel, explainable framework for automated KC discovery through pattern-based KCs: recurring structural patterns within student code that capture the specific programming patterns and language constructs that students must master. Toward this, we train a Variational Autoencoder to generate important representative patterns from student code guided by an explainable, attention-based code representation model that identifies important correct and incorrect pattern implementations from student code. These patterns are then clustered to form pattern-based KCs. We evaluate our KCs using two well-established methods informed by Cognitive Science: learning curve analysis and Deep Knowledge Tracing (DKT). Experimental results demonstrate meaningful learning trajectories and significant improvements in DKT predictive performance over traditional KT methods. This work advances knowledge modeling in CS education by providing an automated, scalable, and explainable framework for identifying granular code patterns and algorithmic constructs, essential for student learning.
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