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Smarter Push Notifications in Multi-Device Environments
Sungho Jo,조성호 에스케이텔레콤 (주) 2015 Telecommunications Review Vol.25 No.6
The number of internet-connected devices a person interacts with has increased. With this increase comes an increase in the number of devices available to notify the user of new information. This paper proposes an algorithm for intelligently selecting the primary device that should first interrupt the user with new information. This algorithm fuses information such as activity level and movement from all of a user's devices to predict which device is best. This algorithm is then implemented as a push-notification service. Using this service, and implemented clients for Android and Google Chrome, we test this algorithm to establish both its ability to predict the user's preferred device and that it reduces the annoyance level of users. Our results confirm that our algorithm has the ability to select an appropriate device, in the future more accurately predict the correct device, and finally that it is less annoying than a naive approach.
Outcome of Hepatectomy for Huge Hepatocellular Carcinoma
Sungho Jo 한국간담췌외과학회 2011 한국간담췌외과학회지 Vol.15 No.2
Purpose: In spite of the recent improved results of hepatectomy for huge hepatocellular carcinomas (HCC), the prognosis of patients with huge HCCs is still poor compared to that of patients with small HCCs. This study was performed to compare the results of hepatectomy between patients with huge HCCs and those with small HCCs, to identify the prognostic factors in patients with huge HCCs, and to determine the preoperative selection criteria. Methods: We retrospectively analyzed 51 patients who underwent hepatectomy, between July 1994 and February 2009 at Dankook University Hospital. Patients with HCC≥10 cm were classified in large (L) group and others were classified in small (S) group. The clinicopathological features, operative procedures, and postoperative outcome were compared between both groups and various prognostic factors were investigated in group L. Results: Eleven patients were classified in group L. Tumor size, vascular invasion, and tumor stage were higher in group L. Postoperative morbidity was higher in group L, but mortality was not different between the groups. Disease-free survivals were significantly lower in group L than in group S (36.4%, and 24.2% vs. 72.0%, and 44.0% for 1- and 3-year), but overall survival rates were similar in both groups (45.5%, and 15.2% in group L vs. 60.3%, and 41.3% in group S for 3- and 5-year). Presence of satellite nodules was the only prognostic factor in multivariate analysis after surgery for huge HCC. Conclusion: Regardless of tumor size, huge HCCs deserve consideration for surgery in patients with preserved liver function. Furthermore, the effect of surgery could be maximized with appropriate selection criteria, such as huge HCC without satellite nodules.
Surgery for metastatic renal cell carcinoma in the pancreatic head
Sungho Jo,In Jun Yang,Sanghyun Song 한국간담췌외과학회 2019 Annals of hepato-biliary-pancreatic surgery Vol.23 No.1
Malignant tumors that metastasize to the pancreas are rare. Among them, renal cell carcinoma is the most common. Surgical resection is more effective in treatment for patients with pancreatic metastasis from renal cell carcinoma, although targeted therapy is applied, to advanced renal cell carcinoma. It is essential to know exact medical history of the patient, because metastasis can occur late after nephrectomy. Surgical procedure may vary, depending on location and number of tumors. We report a case of resection of a pancreatic head tumor, 20 years after nephrectomy due to renal cell carcinoma.