Classification of Astrophysics Journal Articles with Machine Learning to Identify Data for NED

The NASA/IPAC Extragalactic Database (NED) is a comprehensive online service that combines fundamental multi-wavelength information for known objects beyond the Milky Way and provides value-added, derived quantities and tools to search and access the data. The contents and relationships between measurements in the database are continuously augmented and revised to stay current with astrophysics literature and new sky surveys. The conventional process of distilling and extracting data from the literature involves human experts to review the journal articles and determine if an article is of extragalactic nature, and if so, what types of data it contains. This is both labor intensive and unsustainable, especially given the ever-increasing number of publications each year. We present here a machine learning (ML) approach developed and integrated into the NED production pipeline to help automate the classification of journal article topics and their data content for inclusion into NED. We show that this ML application can successfully reproduce the classifications of a human expert to an accuracy of over 90% in a fraction of the time it takes a human, allowing us to focus human expertise on tasks that are more difficult to automate.

Online Consumer Behavior in Buying Samsung Smartphones

Purchasing decision is the culmination of consumer behavior, in which finally, the consumers will do purchase having passed through some stages of consumer behavior. In this research, consumer behaviors being the variable of research are price, brandtrust, and online service, while the variable affected is purchasing decision. Purchasing decision implemented online is, of course, more complex than the one implemented directly, in which buyers interact face to face with the sellers. The objective of research is to analyze the effect of price, brandtrust, and online service on purchasing decision made in online purchase in the students of Faculty of Economics and Business, Sebelas Maret University (Universitas Sebelas Maret). Questionnaire was used as an instrument of collecting data in this research and SPSS version 24 software was used to analyze data. Data analysis was carried out using a multiple linear regression. The result of research shows that price, brandtrust and online service quality affect the decision of purchasing Samsung smartphone positively and significantly, either partially or simultaneously.

VRPDiv: A Divide and Conquer Framework for Large Vehicle Routing Problems

The Vehicle Routing Problem (VRP) is an NP hard problem where we need to optimize itineraries for agents to visit multiple targets. When considering real-world travel (road-network topology, speed limits and traffic), modern VRP solvers can only process small instances with a few hundred targets. We propose a framework (VRPDiv) that can scale any solver to support larger VRP instances with up to ten thousand targets (10k) by dividing them into smaller clusters. VRPDiv supports the multiple VRP scenarios and contains a pool of clustering algorithms from which it chooses the ideal one depending on properties of the instance. VRPDiv assigns agents based on cluster demand and targets compatibility (i.e. realizable time-windows and capacity limitations). We incorporate the framework into the Bing Maps Multi-Itinerary Optimization (MIO) 1 online service. This architecture allows MIO to scale up from solving instances with a few hundred to over 10k targets in under 10 minutes. We evaluate our framework on public datasets and publish a new dataset ourselves, as large enough instances supporting real-world travel were impossible to find. We investigate multiple clustering methods and show that choosing the correct one is critical with differences of up to 60% in quality. We compare with relevant baselines and report a 40% improvement in target allocation and a 9.8% improvement in itinerary durations. We compare with existing scores and report an average delta of 10%, with lower values (<5%) in instances with low workload (few targets per agent), which are acceptable for an online service.

Population and Civil Registration Service of Bandar Lampung City’s Digital Bureaucratic System in Realizing an Effective and Efficient Government

Nowadays, technological developments cannot be avoided. Technological developments in this era are to facilitate every human activity. The development of technology today is marked by the number of applications that can facilitate the community's affairs. An example is the application of the Community Online Service from the Population and Civil Registry Office of Bandar Lampung City called Pelayanan Online Masyarakat Duduk Manis (Permen Manis). This application is expected to help community services to help manage population documents and realize an effective and efficient government. The problem identified is the application of digital bureaucracy in the Population and Civil Registration Office, or Dinas Kependudukan dan Pencatatan Sipil (Disdukcapil) of Bandar Lampung City realizes an effective and efficient government? The research uses normative legal research by collecting and analyzing secondary data. by looking to the public's comments, especially on Permen Manis application users in Bandar Lampung’s Civil Registry Office. By this article the researcher hope the government in Bandar Lampung could improve the services towards the people in Bandar Lampung.

Conceptualization of factors affecting customer satisfaction on online food delivery among young executives in Sri Lanka

As a new food delivery system has emerged to capture a larger share of the industry's sales, the online food delivery sector has risen. This new business delivery system has gained widespread acceptance, particularly among young, active, and hardworking individuals. Furthermore, this business has become more competitive due to the increasing number of new business entries and the expectations of users as a result of the anxiety associated with online ordering and the convenience of ordering at any time. In order to succeed in this emerging market, Customers require online service providers to understand the true nature and requirements of their customers and all essential points of the online service industry. This study aims to gather the information that will assist online food service providers to understand the requirements and characteristics of this new service delivery system, which is currently under development. The purpose of this study is to examine the relationships between customers' perceived service quality for online food delivery and its effect on customer satisfaction by adopting a questionnaire from the Mobile Service Quality Study (M-S-QUAL).

Promoting Information and Communication Technology in Online Service Delivery in Vietnam

Applying Information and Communication Technology (ICT) to public service deliverycontributes to transparency, accountability, and cost-saving to improve administrative efficiency. Thisapplication has become an inevitable trend for administrative reform worldwide. This paper examines thepolicy of promoting ICT in public service delivery and its implementation in Vietnam. Recently, theVietnamese government has created a thoroughly legal foundation to develop information infrastructurefor public service delivery. However, online public service delivery results are still lower than expected,and the online service index in Vietnam has just reached the average level of the world. Therefore, toencourage citizens to use online public services, the government should improve the personalidentification data system and promote propagating and popularize online public services. Thegovernment also should protect personal data and administrative system security to ensure organizationalsystem safety and efficiency.

Transformation Of Guidance And Counseling In The Pandemic Era

Guidance and counseling service innovation in the pandemic era is a necessity. Guidance and counseling services are carried out online, becoming a service model that is widely applied in madrasas. This study aims to describe the innovation of guidance and counseling services in madrasas. This study uses a survey approach and literature review. A literature review was carried out to examine various innovations in counseling services during the pandemic, while the difficulties of students in online-based counseling services were carried out in a survey. Research respondents are 383 students who receive online guidance and counseling services at Madrasah Tsanawiyah. Data collection was carried out by means of questionnaires and interviews with 30 Guidance and counseling teachers. The research instrument was sent by uploading a google form to the respondent. Data processing was carried out by descriptive statistics, while the data from interviews were analyzed deductively and qualitatively. The results showed that the innovation of guidance and counseling services was carried out on student needs assessment activities, counseling services, group guidance and classical services. The online service media used are Telephone, Video Call, WA, Facebook Messenger, e-learning, Google class, Youtube live streaming, Zoom, Google Meet which connects Guidance and counseling teachers with students. The process of online guidance and counseling services at madrasas is fun and easy and effective for students. In the implementation of online services, there are still obstacles in the guidance and counseling service infrastructure.

Effectiveness of offline and online rewards in restoring satisfaction and trust

Purpose This paper aims to compare the relative importance of tangible compensation across the offline and online service mediums, and assess tangible compensation as a trust recovery tactic. Methodology This study is based on a 3 (compensation level: 20%, 50%, 100%) × 2 (compensation type: refund, coupon) × 2 (service medium: offline, online) scenario-based experimental design. Findings The offline and online customers exhibit different satisfaction for the respective values of both the immediate and delayed compensation types. Moreover, offline customers exhibit more trust in the firm when they receive a refund, whereas their online counterparts demonstrate a higher trust when provided with a coupon. Practical implications For a service failure such as the one presented in the experimental study’s scenario, a lower (higher) value coupon will generate more (less) satisfaction compared to providing the same value as a refund. Firms will be better off by providing partial compensation in the form of a coupon, rather than a refund. Originality Unlike most studies of service recovery, this research takes into account the perceived differences of various tangible compensations to provide a comparison of offline and online customers’ recovery preferences. Furthermore, the previous studies have not focused on trust restoration and assessed causes and effects of trust based on trust at one point in time i.e. trust after recovery. While this study has included restored trust as a variable in the conceptual model.