Abstract：
BACKGROUND:Biomedical named entity recognition (Bio-NER) is a fundamental task in handling biomedical text terms, such as RNA, protein, cell type, cell line, and DNA. Bio-NER is one of the most elementary and core tasks in biomedical knowledge discovery from texts. The system described here is developed by using the BioNLP/NLPBA 2004 shared task. Experiments are conducted on a training and evaluation set provided by the task organizers. RESULTS:Our results show that, compared with a baseline having a 70.09% F1 score, the RNN Jordan- and Elman-type algorithms have F1 scores of approximately 60.53% and 58.80%, respectively. When we use CRF as a machine learning algorithm, CCA, GloVe, and Word2Vec have F1 scores of 72.73%, 72.74%, and 72.82%, respectively. CONCLUSIONS:By using the word embedding constructed through the unsupervised learning, the time and cost required to construct the learning data can be saved.
journal_name
Biomed Eng Onlinejournal_title
Biomedical engineering onlineauthors
Song HJ,Jo BC,Park CY,Kim JD,Kim YSdoi
10.1186/s12938-018-0573-6subject
Has Abstractpub_date
2018-11-06 00:00:00pages
158issue
Suppl 2issn
1475-925Xpii
10.1186/s12938-018-0573-6journal_volume
17pub_type
杂志文章abstract：BACKGROUND:The myocardium exhibits heterogeneous nature due to scarring after Myocardial Infarction (MI). In Cardiac Magnetic Resonance (CMR) imaging, Late Gadolinium (LG) contrast agent enhances the intensity of scarred area in the myocardium. METHODS:In this paper, we propose a probability mapping technique using Te...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-91
更新日期：2013-09-22 00:00:00
abstract：BACKGROUND:Surface electromyographic (S-EMG) signal processing has been emerging in the past few years due to its non-invasive assessment of muscle function and structure and because of the fast growing rate of digital technology which brings about new solutions and applications. Factors such as sampling rate, quantiza...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-22
更新日期：2014-02-27 00:00:00
abstract：BACKGROUND:The QRS complex is the most noticeable feature in the electrocardiogram (ECG) signal, therefore, its detection is critical for ECG signal analysis. The existing detection methods largely depend on hand-crafted manual features and parameters, which may introduce significant computational complexity, especiall...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-018-0441-4
更新日期：2018-01-29 00:00:00
abstract：OBJECTIVES:To compare traditional plaster casts, digital models and 3D printed copies of dental plaster casts based on various criteria. To determine whether 3D printed copies obtained using open source system RepRap can replace traditional plaster casts in dental practice. To compare and contrast the qualities of two ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-49
更新日期：2013-05-31 00:00:00
abstract：BACKGROUND:Fiber-based optical spectroscopy has been widely used for biomedical applications. However, the effect of probe-sample distance on the collection efficiency has not been well investigated. METHOD:In this paper, we presented a theoretical model to maximize the illumination and collection efficiency in design...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-10-95
更新日期：2011-11-02 00:00:00
abstract：BACKGROUND:Bone is a hierarchically structured composite material, and different hierarchical levels exhibit diverse material properties and functions. The stress and strain distribution and fluid flow in bone play an important role in the realization of mechanotransduction and bone remodeling. METHODS:To investigate ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-019-0741-3
更新日期：2019-12-23 00:00:00
abstract：BACKGROUND:The replacement of hard tissues demands biocompatible and sometimes bioactive materials with properties similar to those of bone. Nano-composites made of biocompatible polymers and bioactive inorganic nano particles such as HDPE/HA have attracted attention as permanent bone substitutes due to their excellent...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-95
更新日期：2013-09-24 00:00:00
abstract：:A comment on G. Litscher: Infrared thermography fails to visualize stimulation-induced meridian-like structures. Biomed. Eng. OnLine 2005, 4:38 (15 June 2005), with a response by the author. ...
journal_title：Biomedical engineering online
pub_type： 评论,信件
doi：10.1186/1475-925X-10-80
更新日期：2011-09-11 00:00:00
abstract：BACKGROUND:Assessing hand injury is of great interest given the level of involvement of the hand with the environment. Knowing different assessment systems and their limitations generates new perspectives. The integration of digital systems (accelerometry and electromyography) as a tool to supplement functional assessm...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-161
更新日期：2014-12-11 00:00:00
abstract：BACKGROUND:Biomechanical and clinical parameters contribute very closely to functional evaluations of the knee joint. To better understand knee osteoarthritis joint function, the association between a set of knee biomechanical data and a set of clinical parameters of an osteoarthritis population (OA) is investigated in...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-019-0676-8
更新日期：2019-05-15 00:00:00
abstract：BACKGROUND:Voice disorders affect patients profoundly, and acoustic tools can potentially measure voice function objectively. Disordered sustained vowels exhibit wide-ranging phenomena, from nearly periodic to highly complex, aperiodic vibrations, and increased "breathiness". Modelling and surrogate data studies have s...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-6-23
更新日期：2007-06-26 00:00:00
abstract：BACKGROUND:Gait analysis and research have been developed to obtain characteristics of movement patterns of people while walking. However, traditional measuring systems present different drawbacks that reduce their use and application. Among those drawbacks one can find: high price, low sampling frequency and limiting ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-13-34
更新日期：2014-03-31 00:00:00
abstract：BACKGROUND:Retina degenerative disorders represent the primary cause of blindness in UK and in the developed world. In particular, Age Related Macular Degeneration (AMD) and Retina Pigmentosa (RP) diseases are of interest to this study. We have therefore created new image processing algorithms for enhancing the visual ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-9-27
更新日期：2010-06-18 00:00:00
abstract：BACKGROUND:Nonnegative matrix factorization (NMF) has been used in blind fluorescence unmixing for multispectral in-vivo fluorescence imaging, which decomposes a mixed source data into a set of constituent fluorescence spectra and corresponding concentrations. However, most classical NMF algorithms have ill convergence...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-015-0107-4
更新日期：2015-12-15 00:00:00
abstract：BACKGROUND:Optical imaging is one of the most common, low-cost imaging tools used for investigating the tumor biological behavior in vivo. This study explores the feasibility and sensitivity of a near infrared fluorescent protein mKate2 for a long-term non-invasive tumor imaging in BALB/c nude mice, by using a low-powe...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-018-0615-0
更新日期：2018-12-29 00:00:00
abstract：BACKGROUND:A common but debated technique in the management of swallowing difficulties is the chin tuck swallow, where the neck is flexed forward prior to swallowing. Natural variations in chin tuck angles across individuals may contribute to the differential effectiveness of the technique. METHODOLOGY:To facilitate t...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-8-25
更新日期：2009-10-07 00:00:00
abstract：BACKGROUND:Ocular images play an essential role in ophthalmological diagnoses. Having an imbalanced dataset is an inevitable issue in automated ocular diseases diagnosis; the scarcity of positive samples always tends to result in the misdiagnosis of severe patients during the classification task. Exploring an effective...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-017-0420-1
更新日期：2017-11-21 00:00:00
abstract：PURPOSE:Coronary artery bypass graft (CABG) surgery represents the standard treatment of advanced coronary artery disease. Two major types of anastomosis exist to connect the graft to the coronary artery, i.e., by using an end-to-side or a side-to-side anastomosis. There is still controversy because of the differences ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-6-35
更新日期：2007-09-26 00:00:00
abstract：BACKGROUND:Parkinson's disease (PD) and essential tremor (ET) are the two most common movement disorders but the rate of misdiagnosis rate in these disorders is high due to similar characteristics of tremor. The purpose of the study is to present: (a) a solution to identify PD and ET patients by using the novel measure...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-015-0098-1
更新日期：2015-11-04 00:00:00
abstract：:A large number of incommensurable metrics are currently used to report the performance of brain-computer interfaces (BCI) used for augmentative and alterative communication (AAC). The lack of standard metrics precludes the comparison of different BCI-based AAC systems, hindering rapid growth and development of this te...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-12-43
更新日期：2013-05-16 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-10-84
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journal_title：Biomedical engineering online
pub_type： 临床试验,杂志文章
doi：10.1186/1475-925X-4-12
更新日期：2005-02-21 00:00:00
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journal_title：Biomedical engineering online
pub_type： 传,历史文章,杂志文章
doi：10.1186/1475-925X-4-21
更新日期：2005-03-25 00:00:00
abstract：BACKGROUND:The main problem of tremor is the damage caused to the quality of the life of patients, especially those at more advanced ages. There is not a consensus yet about the origins of this disorder, but it can be examined in the correlations between the biological signs of aging and the tremor characteristics. ME...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-9-29
更新日期：2010-06-22 00:00:00
abstract：BACKGROUND:The challenges of glycaemic control in critically ill patients have been debated for 20 years. While glycaemic control shows benefits inter- and intra-patient metabolic variability results in increased hypoglycaemia and glycaemic variability, both increasing morbidity and mortality. Hence, current recommenda...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/s12938-019-0720-8
更新日期：2019-10-22 00:00:00
abstract：BACKGROUND:Pre-operative imaging devices generate high-resolution images but intra-operative imaging devices generate low-resolution images. To use high-resolution pre-operative images during surgery, they must be deformed to reflect intra-operative geometry of brain. METHODS:We employ biomechanical models, guided by ...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-9-51
更新日期：2010-09-15 00:00:00
abstract：BACKGROUND:It is generally accepted that cartilage adaptation and degeneration are mechanically mediated. Investigating the swelling behaviour of cartilage is important because the stress and strain state of cartilage is associated with the swelling and deformation behaviour. It is well accepted that the swelling of so...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925x-1-8
更新日期：2002-12-19 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-11-52
更新日期：2012-08-21 00:00:00
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journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-6-32
更新日期：2007-08-23 00:00:00
abstract：BACKGROUND:Shape of the dental root canal is highly patient specific. Automated identification methods of the medial line of dental root canals and the reproduction of their 3D shape can be beneficial for planning endodontic interventions as severely curved root canals or multi-rooted teeth may pose treatment challenge...
journal_title：Biomedical engineering online
pub_type： 杂志文章
doi：10.1186/1475-925X-11-81
更新日期：2012-10-29 00:00:00
