Finanční analýza společnosti China mobile

Import 11/07/2012This work is focused on China Mobile Limited. The main objective of this work is to evaluate financial performance of China Mobile Limited. First, the method of financial analysis is explained. Common-size and financial ratios analysis are described in detail, DuPont analysis is evaluated from financial ratios and dissected each selected item, main attention is paid to the indicators that is used latter in the work. Second, the characterisation of this company is stated. The introduction of the company, the shareholders’ structure in this company, management team, corporate culture and the company’s achievements are explained clearly. Next, analysis of the company’s financial situation is carried out through the method of the financial analysis and some figures of China Mobile Limited company’s financial statement.This work is focused on China Mobile Limited. The main objective of this work is to evaluate financial performance of China Mobile Limited. First, the method of financial analysis is explained. Common-size and financial ratios analysis are described in detail, DuPont analysis is evaluated from financial ratios and dissected each selected item, main attention is paid to the indicators that is used latter in the work. Second, the characterisation of this company is stated. The introduction of the company, the shareholders’ structure in this company, management team, corporate culture and the company’s achievements are explained clearly. Next, analysis of the company’s financial situation is carried out through the method of the financial analysis and some figures of China Mobile Limited company’s financial statement.154 - Katedra financívýborn

Fundamentální analýza společnosti Suning Commerce Group Co., Ltd.

Import 05/08/2014The main objective of this work is to conduct the stock valuation of Suning Commerce Group Co., Ltd. and forecast its probable price evolution. First, the characterisation of fundamental analysis will be explained. Macroeconomic, industry and company analysis will be described in detail. Main attention will be paid to the indicators and models that will be used latter in the work. Second, the analysis of the macroeconomic environment and industry performance will be stated. The domestic macroeconomy which involves GDP, interest rate, employment situation and inflation, government policy, the business cycle as well as consumer’s sentiment will be shown in detail. Industry structure of Suning Commerce Co., Ltd. and performance will be described. Next, the characterization of the company will be stated and the analysis of the company’s financial situation will be carried out through the method of the financial analysis, some equity valuation models will be used for testing the stock valuation and forecasting the stock price of the company.The main objective of this work is to conduct the stock valuation of Suning Commerce Group Co., Ltd. and forecast its probable price evolution. First, the characterisation of fundamental analysis will be explained. Macroeconomic, industry and company analysis will be described in detail. Main attention will be paid to the indicators and models that will be used latter in the work. Second, the analysis of the macroeconomic environment and industry performance will be stated. The domestic macroeconomy which involves GDP, interest rate, employment situation and inflation, government policy, the business cycle as well as consumer’s sentiment will be shown in detail. Industry structure of Suning Commerce Co., Ltd. and performance will be described. Next, the characterization of the company will be stated and the analysis of the company’s financial situation will be carried out through the method of the financial analysis, some equity valuation models will be used for testing the stock valuation and forecasting the stock price of the company.154 - Katedra financívelmi dobř

A new lookup model for multiple flow tables of open flow with implementation and optimization considerations

This is the author accepted manuscript. The final version is available from IEEE via the DOI in this record.Open Flow has become the key standard for the southbound interface of software defined networking. The single flow table of Open Flow implementation can lead to fast storage space growth, and finally cause table-overflow, the multiple flow tables can address this problem and provide greater efficiency and flexibility. Through analyzing the potential deployment challenges of Open Flow, this paper proposes a new lookup model with implementation and optimization considerations for multiple flow tables in an Open Flow switch. With the developed lookup model, the original single flow table is split into multiple sub-flow tables, and the fields in each sub-flow table are further divided into several categories according to different field types. Preliminary simulation results demonstrate that the proposed solution can effectively reduce the storage space of flow tables

Adoption of Social Media Search Systems: An IS Success Model Perspective

The social media search system aims at providing an organized and integrated access and search support to a massive amount of unstructured, multilingual, user-generated content in an effective and efficient manner. Previous research on social media analytics mainly focuses on developing and applying advanced analysis methods and/or tools to make sense of the large amount of user-generated data over the Internet. Relatively little effort has been put to specifically examine the social media search system. In this study, we utilize and apply the DeLone and McLean IS Success Model to examine this type of systems. To do it, a lab experiment was conducted, and the results showed that all causal relationships, except for satisfaction to social benefit, specified in the DeLone and McLean IS Success Model hold in the context of the large-scale, social media search system. Specifically, we found that information quality and system quality associated with the system could significantly influence both users’ intention to use and satisfaction toward it, both of which, in turn, had significant impacts on users’ perceived individual benefit and social benefit. In addition, satisfaction could significantly influence intention to use the system. Available at: https://aisel.aisnet.org/pajais/vol10/iss2/4

Understanding Avatar Sentiments Using Verbal and Non-Verbal Cues

With the increased popularity of virtual worlds, hundreds of thousands of people from different physical locations can join virtual worlds. In this computer-based simulated 3D environment, avatars can both interact with each other and the environment. This new type of world has important implications for business, education, and society at large. In order to fully use the benefits of virtual worlds, it is important to know how the residents (i.e., avatars) behave, such as how they express sentiments. This research in progress seeks to study avatar sentiments in virtual worlds to examine whether and how sentiments are conveyed by avatars. Both verbal and non-verbal cues will be utilized in the sentiment analysis. To conduct the study, an advanced data collection method is leveraged to obtain various types of avatar data from a large number of real virtual world residents in Second Life in an effective and efficient way

H-SOFT: a heuristic storage space optimisation algorithm for flow table of OpenFlow

PublishedThis is the peer reviewed version of the article, which has been published in final form at DOI 10.1002/cpe.3206. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.OpenFlow has become the key standard and technology for software defined networking, which has been widely adopted in various environments. However, the global deployment of OpenFlow encountered several issues, such as the increasing number of fields and complex structure of flow entries, making the size of flow table in OpenFlow switches explosively grows, which results in hardware implementation difficulty. To this end, this paper presents the modelling on the minimisation for storage space of flow table and proposes a Heuristic Storage space Optimisation algorithm for Flow Table (H-SOFT) to solve this optimisation problem. The H-SOFT algorithm degrades the complex and high-dimensional fields of a flow table into multiple flow tables with simple and low-dimensional fields based on the coexistence and conflict relationships among fields to release the unused storage space due to blank fields. Extensive simulation experiments demonstrate that the H-SOFT algorithm can effectively reduce the storage space of flow table. In particular, with frequent updates on flow entries, the storage space compression rate of flow table is stable and can achieve at ~70%. Moreover, in comparison with the optimal solution, the H-SOFT algorithm can achieve the similar compression rate with much lower execution time.National Natural Science Foundation of ChinaNational Program on Key Basic Research Project (973 Program)Strategic Priority Research Program of the Chinese Academy of SciencesNational High-Tech R&D Program of China (863 Program

Evaluating sentiment in financial news articles: Working paper series--11-10

We investigate the pairing of a financial news article prediction system, AZFinText, with sentiment analysis techniques. From our comparisons we found that news articles of a subjective nature were easier to predict in both price direction (59.0% vs 50.4% without sentiment) and through a simple trading engine (3.30% return vs 2.41% without sentiment). Looking into sentiment further, we found that news articles of a negative sentiment were easiest to predict in both price direction (50.9% vs 50.4% without sentiment) and our simple trading engine (3.04% return vs 2.41% without sentiment). Investigating the negative sentiment further, we found that AZFinText was best able to predict price decreases in articles of a positive sentiment (53.5%) and price increases in articles of a negative or neutral sentiment (52.4% and 49.5% respectively)

Valley-polarized quantum anomalous Hall effect in van der Waals heterostructures based on monolayer jacutingaite family materials

We numerically study the general valley polarization and anomalous Hall effect in van der Waals (vdW) heterostructures based on monolayer jacutingaite family materials Pt$_{2}$AX$_{3}$ (A = Hg, Cd, Zn; X = S, Se, Te). We perform a systematic study on the atomic, electronic, and topological properties of vdW heterostructures composed of monolayer Pt$_{2}$AX$_{3}$ and two-dimensional ferromagnetic insulators. We show that four kinds of vdW heterostructures exhibit valley-polarized quantum anomalous Hall phase, i.e., Pt$_{2}$HgS$_{3}$/NiBr$_{2}$, Pt$_{2}$HgSe$_{3}$/CoBr$_{2}$, Pt$_{2}$HgSe$_{3}$/NiBr$_{2}$, and Pt$_{2}$ZnS$_{3}$/CoBr$_{2}$, with a maximum valley splitting of 134.2 meV in Pt$_{2}$HgSe$_{3}$/NiBr$_{2}$ and sizable global band gap of 58.8 meV in Pt$_{2}$HgS$_{3}$/NiBr$_{2}$. Our findings demonstrate an ideal platform to implement applications on topological valleytronics

Expressions of CXCL12/CXCR4 in Oral Premalignant and Malignant Lesions

Objective. The chemokine receptor CXCR4 and its ligand CXCL12 have been suggested to play important roles in the initiation or progression of cancers. The goal of the present study was to investigate alterations of CXCL12/CXCR4 in oral premalignant lesions and oral squamous cell carcinoma (OSCC). Methods. In 13 normal oral epithelia, 24 dysplastic oral leukoplakia (OLK), and 40 OSCC specimens, expressions of CXCL12 and CXCR4 were evaluated by immunohistochemistry. Results. CXCR4 was expressed in 37.5% of OLK and 60% of OSCC. CXCL12 was detected in 50% of OLK and 62.5% of OSCC. In OLK, CXCR4 positive ratio showed no significant difference from normal epithelia, but the CXCL12 positive ratio was significantly higher. Significant relationship between CXCL12 and CXCR4 was found both in OLK and OSCC. Conclusion. Our results indicated that CXCL12/CXCR4 axis may play roles from early steps of oral malignant transformation and contribute to the progress of oral carcinogenesis