Model-based Analysis of Data Inaccuracy Awareness in Business Processes

Problem definition: Data errors in business processes can be a source for exceptions and hamper business outcomes. Relevance: The paper proposes a method for analyzing data inaccuracy issues already at process design time, in order to support process designers by identifying process parts where data errors might remain unrecognized, so decisions could be taken based on inaccurate data. Methodology: The paper follows design science, developing a method as an artifact. The conceptual basis is the notion of data inaccuracy awareness – the ability to tell whether potential discrepancies between real and IS values may exist. Results: The method was implemented on top of a Petri net modeling tool and validated in a case study performed in a large manufacturing company of safety–critical systems. Managerial implications: Anticipating consequences of data inaccuracy already during process design can help avoiding them at runtime

SUSTAINABILITY ANALYSIS OF MILKFISH AQUABUSINESS MANAGEMENT ON SUMBAWA ISLAND: A BIOECOLOGY, TECHNOLOGY, AND ECONOMIC APPROACH

Selama lebih dari tiga dekade, masyarakat pesisir telah mengelola dan memanfaatkan lahan pesisir Pulau Sumbawa untuk budidaya bandeng (Chanos chanos). Mereka memanfaatkan pasang surut dan topografi daratan pesisir untuk melakukan kegiatan di tambak. Bandeng dipilih karena: kegemaran masyarakat, organisme euryhaline, teknologi budidaya bandeng tergolong sederhana, biaya produksi rendah, dan sintasan tinggi. Tujuan penelitian untuk mengetahui status keberlanjutan pengelolaan dimensi bioekologi, teknologi, dan ekonomi serta mengetahui atribut-atribut sensitif dari masing-masing dimensi. Keberlanjutan merupakan amanat dalam pengelolaan perikanan dunia dan Indonesia. Penelitian ini dilakukan di tiga kabupaten (Sumbawa, Dompu, Bima) selama Juni - Oktober 2018. Penghimpunan data menerapkan metode survey dependen dengan teknik sampling, dialog, observasi, dan dokumentasi. Pengolahan data menerapkan berbagai persamaan statistik dan non statistik. Analisis keberlanjutan menggunakan teknik penilaian untuk akuabisnis bandeng (Rapmilkfish). Hasil Analisis Rapmilkfish menunjukkan status keberlanjutan dimensi bioekologi 'Berkelanjutan', dimensi teknologi 'Cukup Berkelanjutan', dimensi ekonomi 'Kurang Berkelanjutan', dan atribut sensitif sebanyak 12 atribut. Dapat disimpulkan bahwa tingkat penerapan teknologi budidaya bandeng tergolong ramah lingkungan dan berkorelasi positif dengan kelestarian sumber daya alam. Sehingga, kegiatan budidaya bandeng dapat dilanjutkan tanpa harus menaikkan taraf teknologi budidaya bandeng dalam upaya meningkatkan produktivitas tambak

Design and Performance of Microlith Implemented Projectiles During the Middle and the Late Epipaleolithic of the Levant: Experimental and Archaeological Evidence

The study comprises an experimentally based investigation of interaction between temporal change in the morphology of microlithic tools and transformations in projectile technology during the Late Pleistocene in the Levant. Archery experiments with differently designed arrows fitted with various types of microliths representing subsequent Epipaleolithic cultures of the Levant allowed analyzing performance abilities of the arrows, identifying projectile damage types characteristic of particular hafting modes, detecting factors influencing the frequency of projectile damage and estimating the frequency of projectile damage expected to be found in archaeological samples. The data obtained through the experiments applied in the analysis of the archaeological microliths from Geometric Kebaran and Natufian sites in Israel indicate different approaches to the design of projectiles fitted with microliths characteristic for these cultures. The shift in design, associated with such important economic and social transformations as transition to sedentary settlements and a broad-spectrum economy, may reflect a demand for light, flexible and efficient projectile weapons requiring low time and labor investment for preparation and retooling. The use of such efficient weapons in conditions of growing population density and restricted areas available for Natufian hunter–gatherers can be considered as one of the factors that could have affected the subsequent transition to food production that took place in the early Holocene.Anthropolog

Continual Learning in Linear Classification on Separable Data

We analyze continual learning on a sequence of separable linear classification tasks with binary labels. We show theoretically that learning with weak regularization reduces to solving a sequential max-margin problem, corresponding to a special case of the Projection Onto Convex Sets (POCS) framework. We then develop upper bounds on the forgetting and other quantities of interest under various settings with recurring tasks, including cyclic and random orderings of tasks. We discuss several practical implications to popular training practices like regularization scheduling and weighting. We point out several theoretical differences between our continual classification setting and a recently studied continual regression setting