PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Element relational graph-augmented multi-granularity contextualized encoding for document-level event role filler extraction

Element relational graph-augmented multi-granularity contextualized encoding for document-level event role filler extraction
2025-02-28
(Press-News.org)

Document-level Role Filler Extraction exhibits a wide range of application value in natural language processing, including information retrieval, article summarization and trends analysis of world events. Existing document-level event role filler extraction methods face challenges in contextual modeling of long texts and ignore the explicit dependency relationships between event arguments displayed in long texts.

To solve the problems, a research team led by Zhengtao YU published their new research on 15 Feb 2025 in Frontiers of Computer Science co-published by Higher Education Press and Springer Nature.

The team proposed a novel Element Relational Graph-Augmented Multi-Granularity Contextualized Encoder (ERGM) method for document-level event role filler extraction. Extensive experiments were conducted on the MUC-4 benchmark. Empirical results indicate that ERGM substantially outperforms strong baseline models. Additionally, the team demonstrated that the explicit graph-structured representation, generated by the graph neural network, can more effectively capture the dependency relationships between different event roles.

In the research, they extend the conventional document-level sequence tagging model with an additional graph encoder, enabling the production of an explicit structural representation of the source document while integrating multi-granularity information.

Specifically, the researchers initially construct a structural graph by extracting various elements from the source document, such as keywords, entities, and event triplets. They then utilize separate sentence-level encoders, document-level encoders, and a graph encoder to obtain sentence representations, document representations, and structural representations of the source document, respectively. Furthermore, to enhance the capture of comprehensive semantic information in lengthy texts and the interdependency among event roles, they employ a cross-attention mechanism to seamlessly integrate both document and structural representations. Finally, they dynamically integrate sentence and document representations and leverage a CRF (Conditional Random Field) inference layer for document-level event role extraction. Extensive experiments on the MUC-4 benchmark demonstrate that ERGM substantially outperforms strong baseline models. The study also illustrates that the explicit graph-structured representation generated by the graph neural network effectively captures dependency relationships between different event roles.

Future work can focus on exploring better ways to construct the knowledge graphs based on the source document, demonstrating the modeling of dependencies between event roles.

DOI: 10.1007/s11704-024-3701-4

END


[Attachments] See images for this press release:
Element relational graph-augmented multi-granularity contextualized encoding for document-level event role filler extraction

ELSE PRESS RELEASES FROM THIS DATE:

Employee burnout can cost employers millions each year

2025-02-28
New York, NY | February 27, 2025: Employee burnout is likely costing companies millions of dollars each year, ranging from approximately $4,000 to $21,000 per employee in the U.S., according to a study published in the American Journal of Preventive Medicine. That means a 1,000-employee company in the U.S. would on average be losing about $5 million annually. These estimates are based on a computational simulation model developed by the Public Health Informatics, Computational, and Operations Research (PHICOR) team based at ​​the CUNY Graduate ...

The cost of domestic violence to women's employment and education

2025-02-28
A new report reveals how domestic violence impedes women’s employment, often forcing them out of the workforce altogether. In many cases they work fewer hours, for less pay, than employed women who have not experienced domestic violence. This ‘employment gap’ can be as large as 9.4 per cent: 72 per cent of women who have endured economic abuse in the past five years are in employment compared with 81.4 per cent of women who have not been subject to such abuse. The report, The Cost of Domestic Violence to Women’s Employment and Education, draws on data that enables, for the first time, a quantification of the employment and educational ...

Critical illness more common than expected in African hospitals - low-cost treatments offer hope

Critical illness more common than expected in African hospitals - low-cost treatments offer hope
2025-02-28
One in eight patients in hospitals in Africa is critically ill, and one in five of the critically ill die within a week, according to a new study in The Lancet. The researchers behind the largest study of critical illness in Africa to date conclude that many of these lives could have been saved with access to cheap life-saving treatments. Being critically ill means having severely affected vital functions, such as extremely low blood pressure or low levels of oxygen in the blood. In the new study, researchers show that one in eight patients in African hospitals, 12.5 percent, is in this condition. ...

How our lungs back up the bone marrow to make our blood

2025-02-27
Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing.  For many years, scientists assumed that blood production took place in the bone marrow. But now, researchers at UCSF are showing it’s also happening in the lungs.  They found hematopoietic stem cells (HSCs) in human lung tissue that make red blood cells, as well as megakaryocytes, which produce the platelets that form blood clots. The findings appear Feb. 27 in Blood. The work, which was supported by the National Heart, Lung, and Blood Institute ...

Fat transport deficiency explains rare childhood metabolic crises

Fat transport deficiency explains rare childhood metabolic crises
2025-02-27
Researchers studying a protein linked to a rare, severe disease have made a discovery that sheds light on how cells meet their energy needs during a severe metabolic crisis. The findings could lead to new treatments for the disease and open new avenues of research for other conditions involving impaired fat metabolism. When scientists at the Centre for Genomic Regulation (CRG) in Barcelona first identified a handful of protein-coding genes called TANGO in 2006, they had no idea that one of them, TANGO2, would eventually be linked to a life-threatening ...

Remote work “a protective shield” against gender discrimination

Remote work “a protective shield” against gender discrimination
2025-02-27
February 27, 2025 Remote work “a protective shield” against gender discrimination  Survey of more than 1000 women shows incidence higher on-site versus out of the office Toronto - Having staff physically in the workplace benefits companies and employees through stronger team collaboration and informal mentorship. But as organizations continue to corral employees back into the office, they should recognize that women pay a price through increased exposure to gender discrimination, says a new study from the University of Toronto’s Rotman School of Management. In ...

How air pollution and wildfire smoke may contribute to memory loss in Alzheimer’s disease

How air pollution and wildfire smoke may contribute to memory loss in Alzheimer’s disease
2025-02-27
LA JOLLA, CA—Air pollution contributes to nearly 7 million premature deaths each year, and its effects go far beyond the lungs. Breathing in wildfire smoke or automobile-related city smog doesn’t just increase the risk of asthma and heart disease—it may also contribute to brain diseases as diverse as Alzheimer’s and autism. Scientists at Scripps Research have discovered how a chemical change in the brain—which can be triggered by inflammation and aging as well as toxins found in air pollution, pesticides, wildfire smoke and processed meats—disrupts normal brain cell function. Known as S-nitrosylation, ...

UAF scientist designing satellite to hunt small space debris

2025-02-27
A University of Alaska Fairbanks scientist is participating in  a U.S. government effort to design a satellite and instruments capable of detecting space debris as small as 1 centimeter, less than one-half inch. Debris that small, which cannot currently be detected from the ground, can damage satellites and other spacecraft in low-Earth orbit. The idea is to outfit future satellites, such as those vital for communication systems, with technology to avoid space debris collisions. Space debris travels ...

Innate immune training aggravates inflammatory bone loss

2025-02-27
Clinical research has long focused on ways to harness the actions of the immune system. From vaccines to immunotherapies, researchers have used their knowledge of the immune system to develop therapies to treat or prevent diseases from influenza to autoimmune disease and cancer. Now, researchers from Penn’s School of Dental Medicine and international collaborators have investigated the effects of training the innate immune system in experimental models of two chronic inflammatory diseases, periodontitis and arthritis. They found that this “trained” immunity, or TRIM, led to increased bone loss in these models. This ...

An ancient RNA-guided system could simplify delivery of gene editing therapies

An ancient RNA-guided system could simplify delivery of gene editing therapies
2025-02-27
A vast search of natural diversity has led scientists at MIT’s McGovern Institute and the Broad Institute of MIT and Harvard to uncover ancient systems with potential to expand the genome editing toolbox. These systems, which the researchers call TIGR (Tandem Interspaced Guide RNA) systems, use RNA to guide them to specific sites on DNA. TIGR systems can be reprogrammed to target any DNA sequence of interest, and they have distinct functional modules that can act on the targeted DNA. In addition to its modularity, TIGR is very compact compared to other RNA-guided systems, like ...

LAST 30 PRESS RELEASES:

‘Molecular shield’ placed in the nose may soon treat common hay fever trigger

Beetles under climate stress lay larger male eggs: Wolbachia infection drives adaptive reproduction strategy in response to rising temperature and CO₂

Groundbreaking quantum study puts wave-particle duality to work

Weekly injection could be life changing for Parkinson’s patients

Toxic metals linked to impaired growth in infants in Guatemala

Being consistently physically active in adulthood linked to 30–40% lower risk of death

Nerve pain drug gabapentin linked to increased dementia, cognitive impairment risks

Children’s social care involvement common to nearly third of UK mums who died during perinatal period

‘Support, not judgement’: Study explores links between children’s social care involvement and maternal deaths

Ethnic minority and poorer children more likely to die in intensive care

Major progress in fertility preservation after treatment for cancer of the lymphatic system

Fewer complications after additional ultrasound in pregnant women who feel less fetal movement

Environmental impact of common pesticides seriously underestimated

The Milky Way could be teeming with more satellite galaxies than previously thought

New study reveals surprising reproductive secrets of a cricket-hunting parasitoid fly

Media Tip Sheet: Symposia at ESA2025

NSF CAREER Award will power UVA engineer’s research to improve drug purification

Tiny parasitoid flies show how early-life competition shapes adult success

New coating for glass promises energy-saving windows

Green spaces boost children’s cognitive skills and strengthen family well-being

Ancient trees dying faster than expected in Eastern Oregon

Study findings help hone precision of proven CVD risk tool

Most patients with advanced melanoma who received pre-surgical immunotherapy remain alive and disease free four years later

Introducing BioEmu: A generative AI Model that enables high-speed and accurate prediction of protein structural ensembles

Replacing mutated microglia with healthy microglia halts progression of genetic neurological disease in mice and humans

New research shows how tropical plants manage rival insect tenants by giving them separate ‘flats’

Condo-style living helps keep the peace inside these ant plants

Climate change action could dramatically limit rising UK heatwave deaths

Annual heat-related deaths projected to increase significantly due to climate and population change

Researchers discover new way cells protect themselves from damage

[Press-News.org] Element relational graph-augmented multi-granularity contextualized encoding for document-level event role filler extraction