BIRP: Bitcoin Information Retrieval Prediction Model Based on Multimodal Pattern Matching

Financial time series have historically been assumed to be a martingale process under the Random Walk hypothesis. Instead of making investment decisions using the raw prices alone, various multimodal pattern matching algorithms have been developed to help detect subtly hidden repeatable patterns within the financial market. Many of the chart-based pattern matching tools only retrieve similar past chart (PC) patterns given the current chart (CC) pattern, and leaves the entire interpretive and predictive analysis, thus ultimately the final investment decision, to the investors. In this paper, we propose an approach of ranking similar PC movements given the CC information and show that exploiting this as additional features improves the directional prediction capacity of our model. We apply our ranking and directional prediction modeling methodologies on Bitcoin due to its highly volatile prices that make it challenging to predict its future movements.Comment: 5 pages, 2 figures, KDD 2023 Machine Learning in Finance worksho

The Interplay between Real Money Trade and Narrative Structure in Massively Multiplayer Online Role-Playing Games

A narrative structure is one of the main components to constitute the genre of Massively Multiplayer Online Role-Playing Games (MMORPGs). Meanwhile Real Money Trade (RMT) enables a player to adjust an ex post level of challenge by skipping the narrative structure of a game. However, RMT may concurrently disturb a player who enjoys game following the narrative structure hierarchically. In pursuance of developing the knowledge about the relationship between RMT and the usage of MMORPG, we investigate the role of the strictness of predetermined narrative structure. We present the dual structure of societies to describe a player that arbitrarily decides to reside in a virtual society. Then we adopt the social nominalism to explain how individual motif of playing a game is expanded to the nature of game. Finally, we argue that a game with weakly predetermined narrative structure is more positively associated with RMT volume, since these games arouse a player’s sentiment of fun by relying more on their socially oriented motivation. With empirical evidence from the Korean MMORPGs market, we proved the hypothesis

Development of a Catalytic Combustor with Thin-Honeycomb Substrate

Extended Abstract To obtain the most stable H2 yields in reforming systems, it is important to maintain a steady reaction temperature for catalytic reforming. When some parts of the catalytic combustor have hot spots with higher local temperatures, the combustor durability maybe affected or the reforming catalyst would be damaged, resulting in NOx generation Recently, many morphological studies on small-sized catalytic combustors, which are called microchannel catalytic combustors The objective this study is to optimize the catalytic combustor using a thin-honeycomb ceramic substrate, which is capable of providing a dimethyl ether (DME) reformer with a heat source required for endothermic reforming process. The catalytic combustor can also maintain a uniform temperature distribution about 500℃. The catalytic combustor was set the type of a fixed-bed flow reactor under atmospheric pressure. Pt/ γ -Al2O3 catalyst was coated on the cordierite substrate (600 cpsi). The experimental variables are the composition of multi-catalyst blocks, flow distributor, space velocity, excess air ratio, exit cross-section ratio of the burner, and type of fuel. From the results, it was found that the space velocity was selected at the range of 18,000-27,000 h -1 for stable combustion (RMSE(root mean square energy) <10). For the catalytic combustor using C3H8 as fuel, the design combination for the best performance with temperature uniformity and with no exhaust pollutants was the optimized Tshaped and SiC foam distributor, 3 catalyst blocks(lean coating on the front catalyst and rich coating on the rear of catalyst blocks), and 50% minimum cross-section ratio of the combustor outlet. For the catalytic combustor fueled with DME, the temperature variation on the surface of the catalytic combustor could be maintained within 17.6℃ compared to the reference temperature

Beware of layer dependency: when the type of your device impacts your web traffic

Mobile devices are everywhere nowadays but little is known about the way they differ from traditional non-mobile devices in terms of usage and the characteristics of the web traffic they generate. In this paper, we propose a first study of the differences that exist between mobile and non-mobile Web traffic seen from the lorgnette of a university campus network. The study is performed at different levels starting from users' behavior to transport protocol configurations. Our main findings are that mobile users often browse websites tailored to their devices. They show a significant adoption of Apps to browse the web and a preference for multimedia content. The different way of conceiving the web for mobiles is reflected at the HTTP and TCP levels with much less HTTP redirections and abrupt TCP connection terminations. Interestingly, mobile traffic carries larger contents and have larger TCP flows than non-mobile traffic. By cross-analysis of protocols and users' behavior, we explain why TCP flows in mobile traffic are larger than those of nonmobiles

OF@TEIN: An OpenFlow-enabled SDN Testbed over International SmartX Rack Sites

In this paper, we will discuss our on-going effort for OF@TEIN SDN(Software-Defined Networking) testbed, which currently spans over Korea and fiveSouth-East Asian (SEA) collaborators with internationally deployed OpenFlowenabledSmartX Racks

Primary Malignant Melanoma of the Female Urethra

We report here on a rare case of primary malignant melanoma of the female urethra. A 69-year-old female presented at our hospital with a several month history of dysuria, poor stream, gross hematuria, intermittent blood spots, and a painful mass at the external urethral meatus. The physical examination revealed a soft, small, chestnut-sized lesion through the urethral orifice. The mass was tan colored, ulcerated, covered with necrotic tissue, and protruded from the external urethral meatus. The mass was removed by wide local excision under spinal anesthesia. The pathological diagnosis was malignant melanoma of the urethra. Computed tomography of the abdomen as well as a whole-body bone scan showed no evidence of metastasis. The patient has been free of disease for 6 months postoperatively. We discuss the clinicopathologic features and treatment of this tumor

TRAF6 Mediates IL-1β/LPS-Induced Suppression of TGF-β Signaling through Its Interaction with the Type III TGF-β Receptor

Transforming growth factor-β1 (TGF-β1) is an important anti-inflammatory cytokine that modulates and resolves inflammatory responses. Recent studies have demonstrated that inflammation enhances neoplastic risk and potentiates tumor progression. In the evolution of cancer, pro-inflammatory cytokines such as IL-1β must overcome the anti-inflammatory effects of TGF-β to boost pro-inflammatory responses in epithelial cells. Here we show that IL-1β or Lipopolysaccharide (LPS) suppresses TGF-β-induced anti-inflammatory signaling in a NF-κB-independent manner. TRAF6, a key molecule in IL-1β signaling, mediates this suppressive effect through interaction with the type III TGF-β receptor (TβRIII), which is TGF-β-dependent and requires type I TGF-β receptor (TβRI) kinase activity. TβRI phosphorylates TβRIII at residue S829, which promotes the TRAF6/TβRIII interaction and consequent sequestration of TβRIII from the TβRII/TβRI complex. Our data indicate that IL-1β enhances the pro-inflammatory response by suppressing TGF-βsignaling through TRAF6-mediated sequestration of TβRIII, which may be an important contributor to the early stages of tumor progression

Production of He-4 and (4) in Pb-Pb collisions at root(NN)-N-S=2.76 TeV at the LHC

Results on the production of He-4 and (4) nuclei in Pb-Pb collisions at root(NN)-N-S = 2.76 TeV in the rapidity range vertical bar y vertical bar <1, using the ALICE detector, are presented in this paper. The rapidity densities corresponding to 0-10% central events are found to be dN/dy4(He) = (0.8 +/- 0.4 (stat) +/- 0.3 (syst)) x 10(-6) and dN/dy4 = (1.1 +/- 0.4 (stat) +/- 0.2 (syst)) x 10(-6), respectively. This is in agreement with the statistical thermal model expectation assuming the same chemical freeze-out temperature (T-chem = 156 MeV) as for light hadrons. The measured ratio of (4)/He-4 is 1.4 +/- 0.8 (stat) +/- 0.5 (syst). (C) 2018 Published by Elsevier B.V.Peer reviewe

Priolog: Mining Important Logs via Temporal Analysis and Prioritization

Log analytics are a critical part of the operational management in today&rsquo;s IT services. However, the growing software complexity and volume of logs make it increasingly challenging to mine useful insights from logs for problem diagnosis. In this paper, we propose a novel technique, Priolog, that can narrow down the volume of logs into a small set of important and most relevant logs. Priolog uses a combination of log template temporal analysis, log template frequency analysis, and word frequency analysis, which complement each other to generate an accurately ranked list of important logs. We have implemented this technique and applied to the problem diagnosis task of the popular OpenStack platform. Our evaluation indicates that Priolog can effectively find the important logs that hold direct hints to the failure cause in several scenarios. We demonstrate the concepts, design, and evaluation results using actual logs