• The Journal of Korean Medicine
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• v.42 no.1
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• pp.1-11
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• 2021

Objectives: This pilot study aimed to evaluate the agreement between traditional face-to-face Korean medicine (KM) pattern identification and non-face-to-face KM pattern identification using the data from related questionnaires, tongue image, and pulse features in patients with cancer. Methods: From January to June 2020, 16 participants with a cancer diagnosis were recruited at the one Korean medicine hospital. Three experienced Korean medicine doctors independently diagnosed the participants whether they belong to the cold pattern or not, heat pattern or not, deficiency pattern or not, and excess pattern or not. Another researcher collected KM pattern related data using questionnaires including Cold-Heat Pattern Identification (CHPI), tongue image analysis system, and pulse analyzer. Collected KM pattern related data without participants' identifier was provided for the three Korean medicine doctors in random order, and non-face-to-face KM pattern identification was carried out. The kappa value between face-to-face and non-face-to-face pattern identification was calculated. Results: From the face-to-face pattern identification, there were 13/3 cold/non-cold pattern, 4/12 heat/non-heat pattern, 14/2 deficiency/non-deficiency pattern, and 0/16 excess/non-excess pattern participants. In cold/non-cold pattern, kappa value was 0.455 (sensitivity: 0.85, specificity: 0.67, accuracy: 0.81). In heat/non-heat pattern, the kappa value was 0.429 (sensitivity: 0.75, specificity: 0.72, accuracy: 0.75). The kappa value of deficiency/non-deficiency and excess/non-excess pattern was not calculated because of the few participants of non-deficiency, and excess pattern. Conclusions: The agreement between traditional face-to-face pattern identification and non-face-to-face pattern identification seems to be moderate. The non-face-to-face pattern identification using questionnaires, tongue, and pulse features may feasible for the large clinical study.

• MALSORI
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• no.66
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• pp.105-116
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• 2008

In this research, we propose a speaker identification system using a kernel method which is expected to model the non-linearity of speech features well. We have been using principal component analysis (PCA) successfully, and extended to kernel PCA, which is used for many pattern recognition tasks such as face recognition. However, we cannot use kernel PCA for speaker identification directly because the storage required for the kernel matrix grows quadratically, and the computational cost grows linearly (computing eigenvector of $l{\times}l$ matrix) with the number of training vectors I. Therefore, we use greedy kernel PCA which can approximate kernel PCA with small representation error. In the experiments, we compare the accuracy of the greedy kernel PCA with the baseline Gaussian mixture models using MFCCs and PCA. As the results with limited enrollment data show, the greedy kernel PCA outperforms conventional methods.

• Journal of Physiology & Pathology in Korean Medicine
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• v.21 no.6
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• pp.1655-1659
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• 2007

The purpose of this study was to investigate that which symptoms are adequate indicator of the deficiency of Eum pattern in the stroke patients. In the time period Dec. 2006 to Aug. 2007, 479 patients with a first-ever stroke admitted in the department of Internal Medicine of 12 Oriental Medical Hospitals were included. Patients were hospitalized within 1 months after the onset of stroke. Stroke patients had been interviewed by resident who studied standard operation procedures in Fundamental Study for Standardization and Objectification of Differentiation and Pattern Identification of Syndrome of Oriental Medicine for Stroke. Eum-deficiency patients was confirmed by medical specialist diagnosis, resident diagnosis, case report form analysis without a dissenting voice. Deficiency of Eum group included 65 case, Non Eum group 414 case out of 479 patients. dryness of mouth, short and rapid purse, white face and reddish zygoma, mirror-like tongue were higher among Eum group. Eum and Non Eum patients do not significantly differ in reddened tongue, dryness in tongue, night sweat, palpitation, afternoon tidal heat, palmar heat, sores of the mouth or tongue. This study was insufficiency because sample size is very small. More data from prospective cohort studies will help to Korean Standard Differentiation of the Symptoms and Signs for the Stroke.

• Korean Journal of Oriental Medicine
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• v.12 no.3 s.18
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• pp.69-77
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• 2006

Background and Purpose The purpose of this study was to confirm that what symptoms are adequated indicator in the Gi-Deficiency patients. Methods In the time period July. 2005 to Sep. 2006, 136 patients with a first-ever stroke admitted in the department of Internal Medicine of Daejeon University Oriental Medical Hospital in Daejeon city, Wonkwang Oriental Medical Hospital in Iksan, JeonJu city were included. Patients were hospitalized within 3 months after the onset of stroke. Stroke patients had been interviewed by resident who studied standard operation procedures in Fundamental Study for Standardization and Objectification of Differentiation and Pattern Identification of Syndrome of Oriental Medicine for Stroke. Gi-deficiency patients was confirmed by medical specialist diagnosis, resident diagnosis, case report form analysis without a dissenting voice. Results Gi deficiency group included 23 case, Non Gi deficiency group 47 case out of 136 patients. Fatigue, weakness purse, somnolence, low voice, difficulty of uprise, pale face, pale tongue were higher among Gi deficiency group. Gi deficiency and Non Gi deficiency patients do not significantly differ in white coating tongue, light-red tongue, poor appetite, frequent sweating, teeth printed tongue. Conclusions This study was insufficiency because sample size very small. More data from prospective cohort studies will help to Korean Standard Differentiation of the Symptoms and Signs for the stroke.