Accurate disaster entity recognition based on contextual embeddings in self-attentive BiLSTM-CRF

PLoS ONE, Год журнала: 2025, Номер 20(3), С. e0318262 - e0318262

Опубликована: Март 26, 2025

Automated extraction of disaster-related named entities is crucial for gathering pertinent information during natural or human-made crises. Timely and reliable data vital effective disaster management, benefiting humanitarian response authorities, law enforcement agencies, other concerned organizations. Online news media plays a pivotal role in disseminating crisis-related emergencies facilitating post-hazard operations. To extract relevant entities, contextual embedding features prove instrumental. In this study, we investigate the automatic from an annotated dataset 1000 online articles. These articles are carefully with 14 crisis-specific obtained ontologies. generate vector representations words, construct novel word model inspired by Word2vec. features, combined lexicon encoded using contextualized deep Bi-directional LSTM network augmented self-attention conditional random field (CRF) layers. We compare performance our proposed existing approaches. Through extensive evaluation on independent test set 200 that includes more than 80,000 tokens, context-sensitive optimized NER achieves impressive results at sentence level. With Precision 92%, Recall 91%, Accuracy 87%, F1-score outperforms those utilizing general non-contextual embeddings, including fine-tuned BERT models, showcasing its superior performance.

Язык: Английский

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Implementation and impact of mhealth in the management of diabetes mellitus in Africa: A systematic review and meta-analysis

PLOS Digital Health, Год журнала: 2025, Номер 4(4), С. e0000776 - e0000776

Опубликована: Апрель 8, 2025

Background The World Health Organization (WHO) has proposed the concept of mobile health to support healthcare systems delivery worldwide. Mobile (mHealth) involves using Information and Communication Technology (ICT) for care provision or services. In context Africa, a region that witnessed significant increase in phone availability usage last decade corresponding rise incidence prevalence diabetes mellitus, this study global implications. We conducted systematic review on extent mHealth implementation managing mellitus Africa. estimated its impact achieving desired glycemic targets, sustained control, preventing complications past decade. Methods analysis studies assessing utilization patients with Africa were considered based PICO method: Population, Intervention, Comparator, Outcomes. MEDLINE, PubMed, SCOPUS, Pan African Clinical Trials Registry searched. Two authors, independent each other, screened titles abstracts retrieved search strategy, full-text articles, assessed them eligibility, extracting data after that. A third reviewer was brought resolve disagreements between two authors by discussion. revised Cochrane Collaboration Risk Bias Tool used assess quality included studies. narrative synthesis extracted done due paucity eligible studies, results summarized meta-analysis. Results None six measured mean FPG percentage changes as primary outcomes. Five change HbA1c from baseline end study. ranged 3.6% 20.53%, significance three meta-analysis overall WMD (95% CI) 0.992 (0.48, 1.50). This, combination high z score 3.822, p <0.001 suggests statistically effect is not likely chance. However, considerable heterogeneity (I 2 = 63.9%, 0.026) present implying observed may be generalizable all differences characteristics case most sample size duration addressed secondary outcomes measuring direct relationships these interventions prevention early detection complications. Conclusion Overall, there reduction levels among individuals living type following interventions. Few heterogeneity. Therefore, we recommend more well-designed randomized controlled trials investigate efficacy management Systematic registration PROSPERO CRD42021218674

Язык: Английский

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Mechanisms of synergy creation for social-ecological transformation: Leverage point analysis of the emergence of autonomous innovations

PLoS ONE, Год журнала: 2025, Номер 20(5), С. e0323451 - e0323451

Опубликована: Май 14, 2025

Transformation of social-ecological systems is required to overcome complex and difficult challenges move forward toward sustainable futures for humanity the environment. We have accumulated case examples autonomous innovations emerging among community members in rural areas developing countries through transdisciplinary dialogues with innovators. Collective actions diverse actors communities are mobilized these promote transformations by creating synergies resource management practices. Synergy creation has a greater impact on because broader people involved network, range covered resources ecosystems wider, beneficiaries involved. applied novel approach visualize leverage points emergence processes understand pathways mechanisms transformation driven innovations. made comparisons 17 cases without clarify synergies. The process synergy was complicated several factors initial phases interact each other generate These included perception changes innovators visualization new challenges. also found that functions appearing at played critical roles creation. Functions related such as challenges, values, promoting perceptions were important. Based analyses, we propose six guiding principles local practitioners, community-based innovators, scientists collaborating

Язык: Английский

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Evaluation the static precise point positioning and fixing rate with phase ambiguity resolution using different analysis centers products

PLoS ONE, Год журнала: 2025, Номер 20(5), С. e0322622 - e0322622

Опубликована: Май 19, 2025

The performance of precise point positioning with phase ambiguity resolution (PPP-AR) strongly depends on the quality analysis centers (ACs) products. Nowadays, many IGS/MGEX ACs provide PPP-AR To give a full evaluation various products, this work comprehensively investigates and AR fixing rate GPS-only Galileo-only complete set products using open-source software PRIDE PPP-AR. We analyze six including COD0_MGX_FIN, COD0_OPS_FIN, GBM0_MGX_RAP, GRG0_OPS_FIN, WUM0_MGX_RAP, WUM0_MGX_FIN, from four ACs: CODE, GFZ, CNES, WHU. Then, 7 days GPS Galileo data were collected 42 globally distributed MGEX stations. root mean square (RMS) value GBM0_MGX_RAP product for reached about 3 mm, 2 4 6 mm in east, north, up, 3D components, respectively. other five have 5 Compared to narrow-lane (NL) is 20% lower GPS-only. (except COD0_MGX_FIN GBM0_MGX_RAP) 1.9 5.8 6.4 respectively, 2.4 2.2 5.9 6.7 3.5 3.0 8.5 9.7 wide-lane (WL) NL showed all exceeded 99%, 97.24% 92.56%, Overall, WUM0_MGX_FIN rank first, GRG0_OPS_FIN take second place, while those shows worse performance.

Язык: Английский

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