Order-Preserving Abstractive Summarization for Spoken Content Based on Connectionist Temporal Classification

Connectionist temporal classification (CTC) is a powerful approach for sequence-to-sequence learning, and has been popularly used in speech recognition. The central ideas of CTC include adding a label "blank" during training. With this mechanism, CTC eliminates the need of segment alignment, and hence has been applied to various sequence-to-sequence learning problems. In this work, we applied CTC to abstractive summarization for spoken content. The "blank" in this case implies the corresponding input data are less important or noisy; thus it can be ignored. This approach was shown to outperform the existing methods in term of ROUGE scores over Chinese Gigaword and MATBN corpora. This approach also has the nice property that the ordering of words or characters in the input documents can be better preserved in the generated summaries.Comment: Accepted by Interspeech 201

A Mixed-methods Study of Governance Mechanisms and Outsourcing Information System Services on Goal Performance

Background: Information systems outsourcing (ISO) is one of the critical businesses in information technology outsourcing (ITO). Due to the increasing complexity of ISO, the failure rate of such outsourcing increases. Outsourcing information system services (OISS) was thus proposed to deal with this. A conceptual framework based on the information processing view was developed to investigate how the client firms assess OISS goal performance. Governance mechanisms (governance structure, relational governance, and IT coordination) were treated as antecedents of transaction cost and outsourcing flexibility; these would further affect goal performance (goal achievement and goal exceedance) with task complexity as a moderator. Method: A mix-methods study was conducted; the qualitative approach was employed to validate the conceptual framework by interviewing three managers with experiences in OISS from the client firms, whereas the quantitative approach, with 206 responses from those with OISS experiences from the client firms, provides empirical evidence. Results: The results indicated that relational governance effectively reduced transaction cost and increased outsourcing flexibility; the governance structure was also vital for outsourcing flexibility. Transaction cost was found to negatively affect goal achievement, and outsourcing flexibility positively affected both goal achievement and goal exceedance. The moderating effects of task complexity were also confirmed. Conclusion: The results extended the information processing view to OISS and proved that transaction cost and outsourcing flexibility are necessary to link governance mechanisms and goal performance. Practically, the client firms are suggested to maintain a positive relationship with the OISS provider. The OISS provider should offer an exclusive channel during and after the execution of the OISS project to reduce the possible cost that occurs during the implementation and improve the outsourcing flexibility to allow the client firms to consider their goals have been achieved and beyond their expectations. By doing so, the effect of goal performance can be maximized

Ginseng essence, a medicinal and edible herbal formulation, ameliorates carbon tetrachloride-induced oxidative stress and liver injury in rats

AbstractBackgroundGinseng essence (GE) is a formulation comprising four medicinal and edible herbs including ginseng (Panax ginseng), American ginseng (Panax quinquefolius), lotus seed (Nelumbo nucifera), and lily bulb (Lilium longiflorum). This study was aimed at investigating the hepatoprotective effect of GE against carbon tetrachloride (CCl4)-induced liver injury in rats.MethodsWe treated Wistar rats daily with low, medium, and high [0.625 g/kg body weight (bw), 1.25 g/kg bw, and 3.125 g/kg bw, respectively] doses of GE for 9 wk. After the 1st wk of treatment, rats were administered 20% CCl4 (1.5 mL/kg bw) two times a week to induce liver damage until the treatment ended.ResultsSerum biochemical analysis indicated that GE ameliorated the elevation of aspartate aminotransferase and alanine aminotransferase and albumin decline in CCl4-treated rats. Moreover, CCl4-induced accumulation of hepatic total cholesterol and triglyceride was inhibited. The hepatoprotective effects of GE involved enhancing the hepatic antioxidant defense system including glutathione, glutathione peroxidase, glutathione reductase, glutathione S-transferase, superoxide dismutase, and catalase. In addition, histological analysis using hematoxylin and eosin and Masson's trichrome staining showed that GE inhibited CCl4-induced hepatic inflammation and fibrosis. Furthermore, immunohistochemical staining of alpha-smooth muscle actin indicated that CCl4-triggered activation of hepatic stellate cells was reduced.ConclusionThese findings demonstrate that GE improves CCl4-induced liver inflammation and fibrosis by attenuating oxidative stress. Therefore, GE could be a promising hepatoprotective herbal formulation for future development of phytotherapy