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41.
Takeshi Morita Kodai Nakamura Hiroki Komatsushiro Takahira Yamaguchi 《The Review of Socionetwork Strategies》2018,12(1):71-96
Although AI and service robot applications have become very popular in many domains recently, many of them are specific applications and it is still difficult to develop integrated intelligent applications such as a robot teahouse and teaching assistant robots. To develop such integrated intelligent applications, we need integrated intelligent application platforms that have AI integration and agile process facilities. From the above background, we are currently developing PRactical INTElligent aPplicationS (PRINTEPS), which is a platform for developing integrated intelligent applications by combining only five types of modules, namely knowledge-based reasoning, spoken dialogue, image sensing, motion management, and machine learning. This paper proposes a workflow editor in PRINETPS based on a service-oriented architecture and a Robot Operating System that enables real-time parallel processing for multiple robots and sensors by integrating the five types of modules. The editor also supports not only developers but also domain experts in updating workflows frequently. This paper also proposes a novel method to integrate signals acquired through image sensing with knowledge (ontologies and business rules) using C-SPARQL and Semantic Web Rule Language. To evaluate PRINTEPS, we developed a robot teahouse application including customer reception and guidance to table services using a humanoid robot with PRINTEPS. Through this case study, we demonstrated that the behaviors of the robot can be modified by changing the workflow, the ontology, and the rules. 相似文献
42.
Tomomi Hanai Takashi Oguchi Kiyoshi Ando Kazumi Yamaguchi 《International Journal of Hospitality Management》2008
The purpose of this study is to investigate the attributes of the satisfaction that are related to the lodging-guests’ tendency to revisit the lodgings and to compare these attributes among the different travel styles, such as individual travel, travel with friends or as a couple, and travel with family. We examine 6351 guest evaluations from a highly popular travel reservations website. Multinomial logistic regression analyses are performed and they show that the important attributes for lodgings to gain repeat business vary among their guest's travel styles. 相似文献
43.
Kazuo Yamaguchi 《Quality and Quantity》1990,24(3):323-341
This paper introduces a new direction of methodological elaborations in event-history analysis based on discrete-time logit and multinomial logit models. The methodological elaborations address (1) simultaneous analysis of two-way transitions between two states, and (2) its extension for a causal analysis of two interdependent two-state processes. The former elaboration permits a more parsimonious and unambiguous expression for the effects of covariates on the dependent process than can be obtained by separate analyses of each direction of transition. The latter elaboration provides an extension for a log-linear causal analysis of 16-fold tables presenting two-wave-two-variable panel data, and relates the log-linear analysis to event-history analysis. An illustrative application, focusing on the dynamic relationship between premarital cohabitation and marijuana use, demonstrates the usefulness of the new models and methods. 相似文献
44.
Shintaro Yamaguchi 《The Japanese Economic Review》2017,68(3):305-322
This paper discusses how childcare and parental leave policies affect female employment by reviewing the international evidence and recent papers on Japan. These papers estimate causal effects of policies by exploiting policy changes, which is a more credible identification strategy than those applied in earlier observational studies. The literature on parental leave finds that a more generous leave package tends to delay mothers’ return to work, but it does not have detrimental effects on maternal labour supply in the medium to long run. Some papers also find that provision of job protection for around 1 year can increase maternal employment, but longer job protection has little additional effects. The literature on childcare policies finds that maternal employment does not necessarily increase, because the expansion of childcare may crowd out informal childcare arrangements, such as care provided by grandparents. Findings by recent papers on Japan are largely consistent with the international evidence. 相似文献
45.
Fujio Yamaguchi 《Accounting, Business & Financial History》2001,11(3):283-292
The Japanese shipping industry adopted European-style book-keeping in the 1870s. Before 1937, there were few regulations on accounting practices in Japan and we can observe their natural evolution at the Nippon Yusen Kaisha (NYK). NYK, which prospered to become a blue-chip company, developed its accounting techniques in asset valuation exploiting a policy that income and expense from selling securities or vessels should not go directly to the profit and loss account. Asset revaluations were undertaken not to reflect market value but to implement accounting strategy. 相似文献
46.
Shiro Yabushita 《The Economic record》1975,51(3):326-332
47.
Shiro Kuwahara 《Journal of Economics》2013,108(1):35-57
Several empirical studies suggest that advanced economies experience a growth regime switch from factor accumulation to knowledge accumulation. To investigate the mechanism of such a regime switch, this study develops a concise and flexible dynamic model based on Romer (J Polit Econ 98:S71–S102, 1990) by introducing two types of endogenously supplied R&D input capital. The model replicates the growth patterns of developed and underdeveloped nations, clarifies the important role that capital plays in the difference between them, and presents several implications for interest-rate subsidies and official development assistance. Further, it shows that if a country enjoying long-run growth has little initial capital, its initial economic development will be based on capital accumulation. When the capital stock becomes sufficient for supporting R&D, the economy will achieve long-run growth through R&D. 相似文献
48.
49.
Building off the resource‐based view and the knowledge‐based view, our study aims to examine determinants of firms’ R&D outsourcing, using annually‐conducted firm‐level survey data of Japanese R&D companies from 1984–2012. This survey allows us to measure strategic R&D outsourcing, isolated from those more for cost‐reducing, such as prototyping, testing and inspecting. The results corroborate the argument of complementarity in scale between internal R&D and R&D outsourcing. We also find that firms employing more doctorate holders and diversifying in knowledge spaces tend to make more use of R&D outsourcing. This study sheds light on firms’ absorptive capacity, associated both with higher‐order R&D human capital and diversified knowledge spaces, as determinants of R&D outsourcing. 相似文献
50.
In this study, the endogenous timing of moves is analyzed in an infinitely repeated game setting of capital tax competition between a subgroup (a tax union) of countries agreeing on partial tax harmonization and outside countries. It is shown that in a subgame perfect equilibrium of the infinitely repeated tax competition game, they simultaneously set capital taxes in every stage game when a tax union comprises similar countries with respect to productivity, whereas they may set capital taxes sequentially in every stage game when a tax union comprises dissimilar countries. This finding is significantly different from Ogawa (2013), although we also assume that capital is owned by the country's residents, as in Ogawa's model. This is because a disadvantaged member country of the tax union would suffer from larger losses when a tax union comprising dissimilar countries, and thus the tax union will choose the strategy of moving Late for the sake of sustaining tax harmonization to avoid such losses. 相似文献