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Spreadsheets often contain faults that are difficult to localize. Spectrum-based Fault Localization (SFL) assists users in the fault localization process by ranking cells by their suspiciousness to contain a fault. Since the ranking of the basic SFL approach is often imprecise, we propose three techniques to improve it, i.e., dynamic cones, grouping, and tie-breaking. We evaluate these techniques...
This paper presents the results of an experiment designed to study the effect produced on strategy choices when a subject reports risk preferences on a risk scale before engaging in a 2 × 2 coordination game and in an ultimatum game. The main finding is that the act of stating one's own risk preferences significantly alters strategic behavior in the two games. In particular, subjects tend to choose...
The Rule Query Language (RQL) is an SQL-like pattern mining language that extends and generalizes functional dependencies to new and unexpected rules. It brings to the data analysts' desktop a convenient tool to discover logical implications between attributes of the database. Such implications may reveal data quality problems or surprising correlations between attributes over some part of the database...
Functional dependencies (FD) model constraints over databases like "employees with the same role get the same salary". Some extensions have been introduced to represent temporal constraints: temporal functional dependencies (TFD) represent constraints like "for any given month, employees with the same role have the same salary, but their salary may change from one month to the next...
Indonesia's Directorate General of Higher Education (DIKTI) has had a concept of Faculty Workload (BKD) and faculty certification program. The implementation of the both program in our college, ITTelkom, is less effective and less able to substantially improve the performance of institutions in general and teachers in particular. The competency of human resources is the main issues being the major...
Cloud federation brings together different service providers and their offered services, so that many Cloud variants can be tailored to match different sets of customer requirements. To mitigate security risks and convince hesitant customers, security must be an integrated part of the federated Cloud concept. This paper surveys the state of the art in Cloud computing security, identifies unsolved...
Aspect-oriented software development (AOSD) has emerged in recent years as a new paradigm for software development, providing mechanisms to localize cross-cutting concerns (i.e. scattered in many locations) during the software development process. Aspect interaction problems (due to their integration into the base components) is an important issue in AOSD, verification is most often based on a detection...
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