• Journal of Chest Surgery
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• v.17 no.1
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• pp.129-132
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• 1984

Bronchial Adenomas are rare entity among the primary bronchopulmonary neoplasms. But they have received attention because of debate on their malignant nature, prognosis, and mode of therapy. We have four carcinoids and two cylindromas from Jan. 1972 to Jun. 1983. Operations include two pneumonectomies two lobectomies and one bilobectomy. In one cylindroma, resection was impossible due to its invasion into mediastinum and pericardium. There were no hospital deaths.

• Journal of Chest Surgery
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• v.24 no.6
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• pp.605-609
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• 1991

The formation of postlaminectomy arteriovenous fistula is unusual and the rongeur during discectomy with resultant simultaneous damage to artery and vein is causative. The delay in diagnosis is particularly distressing. The presence of a palpable abdominal thrill or bruit with or without congestive heart failure should results in a high index of suspicion of this entity. Prompt recognition and surgical closure of the post-laminectomy arteriovenous iliac fistula are most important in successful management.

• Journal of Chest Surgery
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• v.32 no.11
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• pp.1060-1063
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• 1999

Amyloidosis is a rare disease which is characterized by the deposition of a histochemically specific substance called amyloid in many tissue bodies, and causes various symptoms according to the organs involved. Amyloid is usually recognized by its staining reaction with Congo red stain. Primary pulmonary amyloidosis is very rare. Nodular pulmonary amyloidosis is an uncommon entity that usually manifests itself as an asymptomatic incidental finding on the chest roentgenogram and is misdiagnosed as lung cancer or pulmonary tuberculosis.

• Journal of Chest Surgery
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• v.18 no.3
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• pp.423-427
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• 1985

The Poland`s syndrome is very rare anomaly, which consists of congenital unilateral absence of the sternocostal part of the pectoralis major muscle, with ipsilateral hand deformities. The clinical features are variable but all patients have absence of at least the sternal head of the pectoralis major muscle. The syndrome is not hereditary and is of unknown origin. Early recognition of Poland`s syndrome may give the provision of psychologic and genetic counseling for anxious parents. We have encountered two patients with this entity, and one of them underwent successful surgical correction.

• Journal of Korean Neurosurgical Society
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• v.52 no.4
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• pp.404-406
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• 2012

The occurrence of symptomatic pituitary hemorrhage into a Rathke's cleft cyst (RCC) is extremely rare. The author reports an interesting case of intra- and suprasellar RCC presented with features of pituitary apoplexy. This 62-year-old woman suffered acute headache, mental confusion, and partial hypopituitarism. The characteristics of the magnetic resonance imaging seemed most compatible with a hemorrhagic pituitary adenoma. Transsphenoidal drainage of the cyst contents confirmed the diagnosis of hemorrhagic RCC and resolved the symptoms. All published data on this rare clinical entity are extracted and reviewed.

• 한국어정보학회:학술대회논문집
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• 2016.10a
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• pp.337-339
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• 2016

본 논문에서는 한국어 개체명 인식의 성능 향상을 위하여 워드 임베딩을 활용할 수 있는 방법에 대하여 기술한다. 워드 임베딩이란 문장의 단어의 공기정보를 바탕으로 그 단어의 의미를 벡터로 표현하는 분산표현이다. 이러한 분산 표현은 단어 간의 유의미한 정도를 계산하는데 유용하다. 본 논문에서는 이러한 워드 임베딩을 통하여 단어 벡터들의 코사인 유사도를 통한 개체명 사전 자가 학습 및 매칭 방법을 적용하고, 그 실험 결과를 보고한다.

• Journal of Chest Surgery
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• v.25 no.3
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• pp.321-324
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• 1992

Poland`s syndrome is very rare anomaly and typified by absence of the pectoralis major, absence or hypoplasia of the pectoralisminor, absence of costal cartilage, hypoplasia of breast and subcutaneous tissue, and brachysyndactyly. The clinical features are variable but all patients have absence of at least the sternal head of the pectoralis major muscle. The syndrome is not hereditary and is of unknown origin. Early recognition of Poland`s syndrome may give the provision of psychologic and genetic counselling for anxious parents. We have encountered a patient with this entity, and underwent successful correction.

• 한국어정보학회:학술대회논문집
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• 2017.10a
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• pp.56-59
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• 2017

CNN(Convolutional Neural Network)을 이용하여 발화 주제 다중 분류 task를 multi-labeling 방법과, cluster 방법을 이용하여 수행하고, 각 방법론에 MSE(Mean Square Error), softmax cross-entropy, sigmoid cross-entropy를 적용하여 성능을 평가하였다. Network는 음절 단위로 tokenize하고, 품사정보를 각 token의 추가한 sequence와, Naver DB를 통하여 얻은 named entity 정보를 입력으로 사용한다. 실험결과 cluster 방법으로 문제를 변형하고, sigmoid를 output layer의 activation function으로 사용하고 cross entropy cost function을 이용하여 network를 학습시켰을 때 F1 0.9873으로 가장 좋은 성능을 보였다.

• The Korean Journal of Pain
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• v.30 no.4
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• pp.308-309
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• 2017

• Journal of Korean Neurosurgical Society
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• v.41 no.4
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• pp.267-268
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• 2007

Complications after surgery for chronic subdural hematoma [SDH] include recurrence of the hematoma, tension pneumoencephalus and intracerebral hematoma. We report an unusual case of development bilateral of acute subdural hematoma after drainage of chronic subdural hematoma in a 48-year-old woman. Pathophysiological mechanisms of this uncommon entity are discussed and relevant literature is reviewed.