Cristina Ribeiro

ORCID: 0000-0001-6150-0090
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About
Contact & Profiles
Research Areas
  • Research Data Management Practices
  • Semantic Web and Ontologies
  • Data Quality and Management
  • Scientific Computing and Data Management
  • Thyroid Cancer Diagnosis and Treatment
  • Biomedical Text Mining and Ontologies
  • Web Data Mining and Analysis
  • Data Management and Algorithms
  • Advanced Database Systems and Queries
  • Video Analysis and Summarization
  • Topic Modeling
  • Information Retrieval and Search Behavior
  • Health Literacy and Information Accessibility
  • Advanced Image and Video Retrieval Techniques
  • Image Retrieval and Classification Techniques
  • Diabetes and associated disorders
  • Pituitary Gland Disorders and Treatments
  • Geographic Information Systems Studies
  • Constraint Satisfaction and Optimization
  • Natural Language Processing Techniques
  • Diabetes Management and Research
  • Pancreatic function and diabetes
  • Library Science and Information Systems
  • Advanced Text Analysis Techniques
  • Adrenal Hormones and Disorders

INESC TEC
2014-2023

Universidade do Porto
2014-2023

University of Guelph
2008-2023

Instituto Superior de Engenharia do Porto
2021

Polytechnic Institute of Porto
2021

Hospitais da Universidade de Coimbra
1999-2020

Sheridan College
2020

Universidade Nova de Lisboa
1991-2017

Hospital Braga
2016

University of Coimbra
2016

Little is known about the frequency of key mutations in thyroid cancer metastases and its relationship with primary tumor genotype.To evaluate TERT promoter (TERTp), BRAF, NRAS metastatic carcinomas, analyzing tumors, lymph node (LNMs), distant metastases.Mutation analysis was performed 437 tissue samples from 204 patients, mainly papillary carcinomas (PTCs; n = 180), including 196 LNMs 56 metastases. All included corresponded to radioiodine-refractory tissue.We found following mutation...

10.1210/jc.2016-2785 article EN The Journal of Clinical Endocrinology & Metabolism 2017-03-06

Changes in thyroid function may occur during treatment with amiodarone. A double blind prospective trial of amiodarone and placebo was performed 37 patients the subacute phase myocardial infarction. Though none assigned to receive developed any antibody, six 13 treated antithyroid microsomal antibodies. There no difference triiodothyronine thyroxine concentrations between two groups, but a significant stimulating hormone noted on day 30 (p less than 0.05). Six months after withdrawal...

10.1136/bmj.292.6515.227 article EN BMJ 1986-01-25

10.5555/1793274.1793347 article EN European Conference on Information Retrieval 2008-03-30

Thyroglobulin (Tg) levels measured at the time of remnant ablation after thyroid hormone withdrawal (THW) were shown to have prognostic value in predicting disease-free status.Our objectives determine whether stimulated Tg levels, performed under recombinant human TSH (rhTSH) stimulation, has absence detectable disease 1 year radioiodine therapy and compare results obtained with this approach a cohort patients submitted THW.This was prospective observational study.The study included 293...

10.1210/jc.2013-2267 article EN The Journal of Clinical Endocrinology & Metabolism 2013-09-14

In this paper we introduce a classification for spatio-temporal systems based on the properties of represented objects. Building classification, assert that complex objects can be derived from simpler ones, following an evolutionary approach which starts with study simple and ends by enriching them new features. This focuses definition data model representation moving points. The is decomposition trajectory points into sections. movement within each section described variability function....

10.1559/152304099782330725 article EN Cartography and Geographic Information Science 1999-01-01

Wikis are popular tools commonly used to support distributed collaborative work.Wikis can be seen as virtual scrapbooks that anyone edit without having any specific technical know-how.The Wikipedia is a flagship example of real-word application wikis.Due the large scale it's difficult easily grasp much information stored in this wiki.We address one particular aspect issue by looking at revision history each article.Plotting activity timeline we expose complete article's understandable...

10.1145/1822258.1822292 article EN 2008-09-08

Abstract In this paper an application of constraint logic programming (CLP) to the resolution nesting problems is presented. Nesting are a special case cutting and packing problems, in which pieces generally have non‐convex shapes. Because their combinatorial optimization nature, traditionally been tackled by heuristics recent past meta‐heuristics. When trying formulate as linear models, achieve global optimal solutions, difficulty dealing with disjunction constraints arises. On contrary,...

10.1111/1475-3995.00434 article EN International Transactions in Operational Research 2003-10-24

This paper describes canine augmentation technology (CAT) for use in urban search and rescue (USAR). CAT is a WiFi enabled sensor array that worn by trained canines deployed disasters. The system includes, but not limited to, cameras provide emergency responders with real-time data to remotely monitor, analyze take action during USAR operations. An analysis made of the current tools available workers including robots teams. From this came design CAT-a extracts strengths each tool combines...

10.1109/sysose.2008.4724181 article EN 2008-06-01

In this paper we discuss the use of accelerometers and Bluetooth to monitor canine pose in context common poses observed urban search rescue dogs. We system a disaster environment, propose techniques for determining pose. addition challenges with approach such environments. The presents experimental results obtained from heavy simulation, where experiments were conducted using multiple canines, which show that angles can be derived acceleration readings. Our similar measured each poses, even...

10.1109/sysose.2008.4724172 article EN 2008-06-01

Time has been successfully used as a feature in web information retrieval tasks. In this context, estimating document's inception date or last update is necessary task. Classic approaches have HTTP header fields to estimate time. The main problem with approach that it applicable small part of documents. work, we evaluate an alternative strategy based on neighborhood. Using random sample containing 10,000 URLs from the Yahoo! Directory, study each links and media assets determine its age. If...

10.1145/1316902.1316924 article EN 2007-11-09

In this paper we discuss determining canine pose in the context of common poses observed urban search and rescue dogs through use a sensor network made up accelerometers. We estimation system disaster environment, propose techniques for pose. addition challenges with approach such environments. This presents experimental results obtained from heavy simulation, where experiments were conducted using multiple canines, which show that angles can be derived acceleration readings. Our similar...

10.1109/crv.2009.38 article EN Canadian Conference on Computer and Robot Vision 2009-05-01

E nglish is by far the most used language on web. In some domains, existence of less content in users' native may not be problematic and even help to cope with information overload. Yet, domains such as health, where quality critical, a larger quantity mean easier access higher content. Query translation good strategy other languages, but presence medical terms health queries makes process more difficult, for users very proficiencies. this study, we evaluate how translating query affects...

10.1002/asi.22812 article EN Journal of the American Society for Information Science and Technology 2013-03-22

Geographical Information Systems were originally intended to deal with snapshots representing a single state of some reality but there are more and applications requiring the representation querying time-varying information. This work addresses moving objects on GIS.

10.1145/355274.355290 article EN 2000-11-01

Purpose The intent of this work is to evaluate several generalist and health‐specific search engines for retrieval health information by consumers: compare the effectiveness these different types clinical queries, medical specialties condition severity; use evaluation metrics binary relevance scales graded ones. Design/methodology/approach authors conducted a study in which users evaluated documents retrieved four two needs. Users could choose between (Bing, Google, Sapo Yahoo!)...

10.1108/14684521111193175 article EN Online Information Review 2011-11-26
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