This paper introduces a large-scale historical corpus of written Arabic spanning 1400 years. The corpus was cleaned and processed using Arabic NLP tools, including identification of reused text. The study uses a novel automatic periodization algorithm to study the history of the Arabic language, confirming the division into Modern Standard and Classical Arabic. Why it matters: This resource enables further computational research into the evolution of Arabic and the development of NLP tools for historical texts.
This paper introduces a novel fuzzy clustering method for circular time series based on a new dependence measure that considers circular arcs. The algorithm groups series generated from similar stochastic processes and demonstrates computational efficiency. The method is applied to time series of wind direction in Saudi Arabia, showcasing its practical potential.
Dr. Paolo Sassone-Corsi from UC Irvine spoke at KAUST's 2019 Winter Enrichment Program about circadian rhythms. He discussed how modern lifestyles disrupt our internal clocks, impacting our health and metabolism. Studies show that the timing of food intake affects weight gain, with eating late at night causing metabolic stress. Why it matters: This highlights the importance of circadian rhythm research for understanding and mitigating the health consequences of modern lifestyles in the region.
The paper introduces TimeHUT, a new method for learning time-series representations using hierarchical uniformity-tolerance balancing of contrastive representations. TimeHUT employs a hierarchical setup to learn both instance-wise and temporal information, along with a temperature scheduler to balance uniformity and tolerance. The method was evaluated on UCR, UAE, Yahoo, and KPI datasets, demonstrating superior performance in classification tasks and competitive results in anomaly detection.
This paper introduces a novel two-step method for predicting urban expansion using time-series satellite imagery. The approach combines semantic image segmentation with a CNN-LSTM model to learn temporal features. Experiments on satellite images from Riyadh, Jeddah, and Dammam in Saudi Arabia demonstrate improved performance compared to existing methods based on Mean Square Error, Root Mean Square Error, Peak Signal to Noise Ratio, Structural Similarity Index, and overall classification accuracy.
Science writer Dava Sobel spoke at KAUST in 2019 about the importance of longitude and precision timekeeping for navigation. She discussed the historical difficulties in determining longitude, contrasting it with the ease of finding latitude. Sobel highlighted the Longitude Act of 1714 and figures like John Harrison who addressed these challenges. Why it matters: This lecture exposed the KAUST community to the historical context of navigation and the crucial role of timekeeping, relevant to contemporary technologies like GPS.
Professor Eran Segal presented The Human Phenotype Project, a longitudinal cohort study with over 10,000 participants. The project aims to identify molecular markers and develop prediction models for disease using deep profiling techniques including medical history, lifestyle, blood tests, and microbiome analysis. The study provides insights into drivers of obesity, diabetes, and heart disease, identifying novel markers at the microbiome, metabolite, and immune system level. Why it matters: Such large-scale phenotyping initiatives could inform personalized medicine approaches relevant to the Middle East's specific health challenges.