Log in

Relevant bibliographies by topics / Expected-rate constraints / Journal articles

To see the other types of publications on this topic, follow the link: Expected-rate constraints.

Journal articles on the topic 'Expected-rate constraints'

Author: Grafiati

Published: 1 June 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Expected-rate constraints.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Guan, Jinying, Jiawei He, Sisi Peng, and Tiantian Xue. "Comparisons to Investment Portfolios under Markowitz Model and Index Model based on US’s Stock Market." BCP Business & Management 26 (September 19, 2022): 905–15. http://dx.doi.org/10.54691/bcpbm.v26i.2053.

Full text

Abstract:

In order to construct an investment portfolio, it is crucial to select risky assets and arrange the weights to each asset. This article selects 6 stocks to compose the portfolio and compare their performances under 5 constraints that are always considered in real life by using Markowitz Model and Index Model. These two models would produce different investment portfolios as they take different factors of stock into account. By calculating the maximal return rate determined by Sharpe ratio, and the minimal risk rate determined by standard deviation, comparing the two models and conclude which m

APA, Harvard, Vancouver, ISO, and other styles

2

Kiendrebeogo, R. Weizmann, Amanda M. Farah, Emily M. Foley, et al. "Updated Observing Scenarios and Multimessenger Implications for the International Gravitational-wave Networks O4 and O5." Astrophysical Journal 958, no. 2 (2023): 158. http://dx.doi.org/10.3847/1538-4357/acfcb1.

Full text

Abstract:

Abstract An advanced LIGO and Virgo’s third observing run brought another binary neutron star merger (BNS) and the first neutron-star black hole mergers. While no confirmed kilonovae were identified in conjunction with any of these events, continued improvements of analyses surrounding GW170817 allow us to project constraints on the Hubble Constant (H 0), the Galactic enrichment from r-process nucleosynthesis, and ultra-dense matter possible from forthcoming events. Here, we describe the expected constraints based on the latest expected event rates from the international gravitational-wave net

APA, Harvard, Vancouver, ISO, and other styles

3

Kundu, Soumita, Tripti Chakrabarti, and Dipak Kumar Jana. "Optimal Manufacturing-Remanufacturing Production Policy for a Closed-Loop Supply Chain under Fill Rate and Budget Constraint in Bifuzzy Environments." International Journal of Mathematics and Mathematical Sciences 2014 (2014): 1–14. http://dx.doi.org/10.1155/2014/690435.

Full text

Abstract:

We study a closed-loop supply chain involving a manufacturing facility and a remanufacturing facility. The manufacturer satisfies stochastic market demand by remanufacturing the used product into “as-new” one and producing new products from raw material in the remanufacturing facility and the manufacturing facility, respectively. The remanufacturing cost depends on the quality of used product. The problem is maximizing the manufacturer’s expected profit by jointly determining the collected quantity of used product and the ordered quantity of raw material. Following that we analyze the model wi

APA, Harvard, Vancouver, ISO, and other styles

4

Wen, Yuzhen, and Chuancun Yin. "Optimal Expected Utility of Dividend Payments with Proportional Reinsurance under VaR Constraints and Stochastic Interest Rate." Journal of Function Spaces 2020 (August 11, 2020): 1–13. http://dx.doi.org/10.1155/2020/4051969.

Full text

Abstract:

In this paper, we consider the problem of maximizing the expected discounted utility of dividend payments for an insurance company taking into account the time value of ruin. We assume the preference of the insurer is of the CRRA form. The discounting factor is modeled as a geometric Brownian motion. We introduce the VaR control levels for the insurer to control its loss in reinsurance strategies. By solving the corresponding Hamilton-Jacobi-Bellman equation, we obtain the value function and the corresponding optimal strategy. Finally, we provide some numerical examples to illustrate the resul

APA, Harvard, Vancouver, ISO, and other styles

5

Cameron, Richard. "Ambiguous agreement, functional compensation, and nonspecific tú in the Spanish of San Juan, Puerto Rico, and Madrid, Spain." Language Variation and Change 5, no. 3 (1993): 305–34. http://dx.doi.org/10.1017/s0954394500001526.

Full text

Abstract:

ABSTRACTRichness of subject-verb agreement is implicit in the functional compensation interpretation of variable second person /-s/ in Puerto Rican Spanish (PRS). Because /-s/ is not variable in Madrid Spanish (MS), richer agreement is assumed, and a lower rate of pronominal expression is expected. Central to this interpretation are effects associated with ambiguous marking of person on finite singular verbs. Although an increase of pronominal expression correlates to ambiguous marking for PRS speakers, a similar result has not been reported for MS speakers. Nonetheless, a varbrul analysis yie

APA, Harvard, Vancouver, ISO, and other styles

6

Yamani, Ehab, and David Rakowski. "Cash Flow and Discount Rate Risk in the Investment Effect: A Downside Risk Approach." Quarterly Journal of Finance 08, no. 03 (2018): 1850002. http://dx.doi.org/10.1142/s2010139218500027.

Full text

Abstract:

We examine whether sensitivities to cash flow and discount rate risk in down markets explain the investment effect, in which low-investment stocks earn higher expected returns than high-investment stocks. We show how productivity and financing constraints asymmetrically impact the systematic risk of low-investment and high-investment firms, conditional on market state. Our evidence is consistent with both productivity constraints and financing constraints as explanations for the investment effect, but, contrary to expectations, more when prices are rising than falling.

APA, Harvard, Vancouver, ISO, and other styles

7

Dang, Yinglong, Xiaoguang Gao, and Zidong Wang. "A Novel Hyper-Heuristic Algorithm with Soft and Hard Constraints for Causal Discovery Using a Linear Structural Equation Model." Entropy 27, no. 1 (2025): 38. https://doi.org/10.3390/e27010038.

Full text

Abstract:

Artificial intelligence plays an indispensable role in improving productivity and promoting social development, and causal discovery is one of the extremely important research directions in this field. Acyclic directed graphs (DAGs) are the most commonly used tool in causal modeling because of their excellent interpretability and structural properties. However, in the face of insufficient data, the accuracy and efficiency of DAGs learning are greatly reduced, resulting in a false perception of causality. As intuitive expert knowledge, structural constraints control DAG learning by limiting the

APA, Harvard, Vancouver, ISO, and other styles

8

Chava, Sudheer, and Alex Hsu. "Financial Constraints, Monetary Policy Shocks, and the Cross-Section of Equity Returns." Review of Financial Studies 33, no. 9 (2019): 4367–402. http://dx.doi.org/10.1093/rfs/hhz140.

Full text

Abstract:

Abstract We analyze the impact ofa unanticipated monetary policy changes on the cross-section of U.S. equity returns. Financially constrained firms earn a significantly lower (higher) return following surprise interest rate increases (decreases) as compared to unconstrained firms. This differential return response between constrained and unconstrained firms appears after a delay of 3 to 4 days. Further, unanticipated Federal funds rate increases are associated with a larger decrease in expected cash flow news, but not discount rate news, for constrained firms relative to unconstrained firms. A

APA, Harvard, Vancouver, ISO, and other styles

9

Schiffer, Benjamin, and Shirley Zhang. "Improved Regret Bounds for Online Fair Division with Bandit Learning." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 13 (2025): 14079–86. https://doi.org/10.1609/aaai.v39i13.33541.

Full text

Abstract:

We study online fair division when there are a finite number of item types and the player values for the items are drawn randomly from distributions with unknown means. In this setting, a sequence of indivisible items arrives according to a random online process, and each item must be allocated to a single player. The goal is to maximize expected social welfare while maintaining that the allocation satisfies proportionality in expectation. When player values are normalized, we show that it is possible to with high probability guarantee proportionality constraint satisfaction and achieve O(√T)

APA, Harvard, Vancouver, ISO, and other styles

10

Marafico, Sullivan, Jonathan Biteau, Antonio Condorelli, Olivier Deligny, and Quentin Luce. "Observational constraints on accelerators of ultra-high energy cosmic rays." Journal of Physics: Conference Series 2429, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1742-6596/2429/1/012012.

Full text

Abstract:

Abstract We explore two generic hypotheses for tracing the sources of ultra-high energy cosmic rays (UHECRs) in the Universe: star formation rate density or stellar mass density. For each scenario, we infer a set of constraints for the emission mechanisms in the accelerators, for their energetics and for the abundances of elements at escape from their environments. From these constraints, we generate sky maps above 40 EeV expected from a catalog that comprises 410,761 galaxies out to 350 Mpc and provides a near-infrared flux-limited sample to map both stellar mass and star formation rate over

APA, Harvard, Vancouver, ISO, and other styles

11

Yang, Liu, Yao Xiong, and Xiao-jiao Tong. "A Smoothing Algorithm for a New Two-Stage Stochastic Model of Supply Chain Based on Sample Average Approximation." Mathematical Problems in Engineering 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/5681502.

Full text

Abstract:

We construct a new two-stage stochastic model of supply chain with multiple factories and distributors for perishable product. By introducing a second-order stochastic dominance (SSD) constraint, we can describe the preference consistency of the risk taker while minimizing the expected cost of company. To solve this problem, we convert it into a one-stage stochastic model equivalently; then we use sample average approximation (SAA) method to approximate the expected values of the underlying random functions. A smoothing approach is proposed with which we can get the global solution and avoid i

APA, Harvard, Vancouver, ISO, and other styles

12

Sekine, Jun. "A note on long-term optimal portfolios under drawdown constraints." Advances in Applied Probability 38, no. 3 (2006): 673–92. http://dx.doi.org/10.1239/aap/1158684997.

Full text

Abstract:

The maximization of the long-term growth rate of expected utility is considered under drawdown constraints. In a general situation, the value and the optimal strategy of the problem are related to those of another ‘standard’ risk-sensitive-type portfolio optimization problem. Furthermore, an upside-chance maximization problem of a large deviation probability is stated as a ‘dual’ optimization problem. As an example, a ‘linear-quadratic’ model is studied in detail: the conditions to ensure the solvabilities of the problems are discussed and explicit expressions for the solutions are presented.

APA, Harvard, Vancouver, ISO, and other styles

13

Sekine, Jun. "A note on long-term optimal portfolios under drawdown constraints." Advances in Applied Probability 38, no. 03 (2006): 673–92. http://dx.doi.org/10.1017/s0001867800001221.

Full text

Abstract:

The maximization of the long-term growth rate of expected utility is considered under drawdown constraints. In a general situation, the value and the optimal strategy of the problem are related to those of another ‘standard’ risk-sensitive-type portfolio optimization problem. Furthermore, an upside-chance maximization problem of a large deviation probability is stated as a ‘dual’ optimization problem. As an example, a ‘linear-quadratic’ model is studied in detail: the conditions to ensure the solvabilities of the problems are discussed and explicit expressions for the solutions are presented.

APA, Harvard, Vancouver, ISO, and other styles

14

Simmons, P. "Consumption Constraints, Uncertain Income Streams and the Life Cycle Model." Recherches économiques de Louvain 51, no. 2 (1985): 175–80. http://dx.doi.org/10.1017/s0770451800082518.

Full text

Abstract:

There has been a strong resurgence of interest in the life cycle model of consumption with a stochastic income stream. In particular, with various degrees of restrictiveness, it is argued that this theory implies that consumption should follow a Markov process. At one extreme with additive quadratic preferences, perfect capital markets and a known constant interest rate, this holds exactly. More generally with additive preferences, expected discounted marginal utilities obey the martingale condition. The purpose of the present note is to point out that such results depend on the existence of i

APA, Harvard, Vancouver, ISO, and other styles

15

Lee, Juhyun, Byunghoon Kim, and Suneung Ahn. "Maintenance Optimization for Repairable Deteriorating Systems under Imperfect Preventive Maintenance." Mathematics 7, no. 8 (2019): 716. http://dx.doi.org/10.3390/math7080716.

Full text

Abstract:

This study deals with the preventive maintenance optimization problem based on a reliability threshold. The conditional reliability threshold is used instead of the system reliability threshold. Then, the difference between the two thresholds is discussed. The hybrid failure rate model is employed to represent the effect of imperfect preventive maintenance activities. Two maintenance strategies are proposed under two types of reliability constraints. These constraints are set to consider the cost-effective maintenance strategy and to evaluate the balancing point between the expected total main

APA, Harvard, Vancouver, ISO, and other styles

16

Callado, Antônio André Cunha, and Fábia Michelle Rodrigues de Araújo Callado. "Operational performance and budget constraints: case study in a Public Hospital specialized in Hematology." Management Control Review 7, no. 1 (2023): 28–37. http://dx.doi.org/10.51720/mcr.v7i1.5469.

Full text

Abstract:

The objective of this paper is to analyze the impact of budget constraints of the Brazilian public sector on operational performance indicators in a hematology specialized Hospital. In order to carry out this research a case study approach was designed considering average length of stay, occupancy rate, hospital mortality rate. Data regarding results of these indicators were obtained considering two periods of time. The first period was from January 2013 to December 2014 and the second period was from January 2015 to September 2016. Expected performance reference values from these indicators w

APA, Harvard, Vancouver, ISO, and other styles

17

D’Orazio, Daniel J., Abraham Loeb, and James Guillochon. "Constraining the stellar mass function from the deficiency of tidal disruption flares in the nuclei of massive galaxies." Monthly Notices of the Royal Astronomical Society 485, no. 3 (2019): 4413–22. http://dx.doi.org/10.1093/mnras/stz652.

Full text

Abstract:

ABSTRACT The rate of tidal disruption flares (TDFs) per mass of the disrupting black hole encodes information on the present-day mass function (PDMF) of stars in the clusters surrounding super massive black holes. We explore how the shape of the TDF rate with black hole mass can constrain the PDMF, with only weak dependence on black hole spin. We show that existing data can marginally constrain the minimum and maximum masses of stars in the cluster, and the high-mass end of the PDMF slope, as well as the overall TDF rate. With $\mathcal {O}(100)$ TDFs expected to be identified with the Zwicky

APA, Harvard, Vancouver, ISO, and other styles

18

Simmonds, P., and D. B. Smith. "Structural Constraints on RNA Virus Evolution." Journal of Virology 73, no. 7 (1999): 5787–94. http://dx.doi.org/10.1128/jvi.73.7.5787-5794.1999.

Full text

Abstract:

ABSTRACT The recently discovered hepatitis G virus (HGV) or GB virus C (GBV-C) is widely distributed in human populations, and homologues such as HGV/GBV-CCPZ and GBV-A are found in a variety of different primate species. Both epidemiological and phylogenetic analyses support the hypothesis that GB viruses coevolved with their primate hosts, although their degree of sequence similarity appears incompatible with the high rate of sequence change of HGV/GBV-C over short observation periods. Comparison of complete coding sequences (8,500 bases) of different genotypes of HGV/GBV-C showed an excess

APA, Harvard, Vancouver, ISO, and other styles

19

Amjad Dipa, Mahfida, Syamsuri Yaakob, Fadlee Rasid, Faisul Ahmad, and Azwan Mahmud. "Efficient Load Balancing for Future Dense Networks using Radio over Fiber Infrastructure and applying Different Learning Rates." Engineering, Technology & Applied Science Research 15, no. 2 (2025): 21462–68. https://doi.org/10.48084/etasr.10122.

Full text

Abstract:

Reinforcement Learning (RL) can lead to effective Load-Balancing (LB) mechanisms, as traditional methods cannot always provide an optimal solution in cellular networks. This study proposes an RL-based LB scheme for a dense network that uses radio over fiber infrastructure. The proposed technique is based on LB constraints in the action space that maintain zero violation during the learning process. In this technique, a Deep Q-Network agent was chosen to search for an optimal policy to maximize the expected cumulative long-term reward to satisfy the constraints. This study uses the number of us

APA, Harvard, Vancouver, ISO, and other styles

20

Ginane, C., and M. Petit. "Feeding behaviour and diet choices and diet choices of cattle with physical and temporal constraints on forage accessibility: an indoor experiment." Animal Science 81, no. 1 (2005): 3–10. http://dx.doi.org/10.1079/asc41230003.

Full text

Abstract:

AbstractAn indoor choice experiment was conducted to assess the extent to which heifers offered two forages of different quality will attempt to consume the better quality forage when the weight/number of constraints applied on its harvesting increase. The experiment involved six Salers heifers, a leafy (L) and a coarse (C) hay, and two combined or single accessibility constraints. A physical constraint consisted of reducing the prehensibility of L by covering the trough with a steel grid of either 4 cm or 6 cm mesh size (L4 or L6 v. L ∞ for no grid). A temporal constraint limited the daily ac

APA, Harvard, Vancouver, ISO, and other styles

21

Niu, Xueyan, Bo Bai, Nian Guo, Weixi Zhang, and Wei Han. "Rate–Distortion–Perception Trade-Off in Information Theory, Generative Models, and Intelligent Communications." Entropy 27, no. 4 (2025): 373. https://doi.org/10.3390/e27040373.

Full text

Abstract:

Traditional rate–distortion (RD) theory examines the trade-off between the average length of the compressed representation of a source and the additive distortions of its reconstruction. The rate–distortion–perception (RDP) framework, which integrates the perceptual dimension into the RD paradigm, has garnered significant attention due to recent advancements in machine learning, where perceptual fidelity is assessed by the divergence between input and reconstruction distributions. In communication systems where downstream tasks involve generative modeling, high perceptual fidelity is essential

APA, Harvard, Vancouver, ISO, and other styles

22

Evans, Karl, Laila Sadler, Amanda Vincent, and A. Dale Marsden. "Temporal and spatial opportunities for polygamy in a monogamous seahorse, Hippocampus whitei." Behaviour 141, no. 2 (2004): 141–56. http://dx.doi.org/10.1163/156853904322890780.

Full text

Abstract:

AbstractThe sex with the higher potential reproductive rate is expected to mate polygamously unless there are temporal or spatial constraints on mate availability. We investigated whether such constraints were evident in a population of the monogamous seahorse Hippocampus whitei (family Syngnathidae). Across the whole study site, breeding was more asynchronous than expected by chance. Our findings are thus compatible with the hypothesis that asynchronous breeding may promote and/or maintain monogamy. Asynchrony per se was unlikely to explain monogamy entirely, however, as temporal opportunitie

APA, Harvard, Vancouver, ISO, and other styles

23

Dong, Ding, Zheng Liu, Pengfei Wang, and Min Wei. "Inflation Disagreement Weakens the Power of Monetary Policy." Federal Reserve Bank of San Francisco, Working Paper Series 2024, no. 27 (2024): 01–66. http://dx.doi.org/10.24148/wp2024-27.

Full text

Abstract:

Households often disagree in their inflation outlooks. We present novel empirical evidence that inflation disagreement weakens the power of forward guidance and conventional monetary policy. These empirical observations can be rationalized by a model featuring heterogeneous beliefs about the central banks’ inflation target. An agent who perceives higher future inflation also perceives a lower real interest rate and thus would like to borrow more to finance consumption, subject to borrowing constraints. Higher inflation disagreement would lead to a larger share of borrowing-constrained agents,

APA, Harvard, Vancouver, ISO, and other styles

24

Dhanda, Poonam, and Alok Kumar Mishra. "CONSTRAINTS FACED BY PERSONS WITH DISABILITIES IN EMPLOYMENT." International Journal of Research -GRANTHAALAYAH 4, no. 3 (2016): 182–87. http://dx.doi.org/10.29121/granthaalayah.v4.i3.2016.2801.

Full text

Abstract:

The study is absolutely an observational study used to measure empowerment of persons with disabilities through the improvement of entrepreneurial quality, development and imagination. Further research is expected to create, assess, evaluate, the significance of present study in other developing nations. India is frequently depicted as a developing yet a youthful nation. As the nation enters its 65th year of autonomous presence the depiction of youth does not appear to be excessively suitable. It can now be termed youthful by reason of the way that half of its billion or more populace comprise

APA, Harvard, Vancouver, ISO, and other styles

25

Poonam, Dhanda, and Alok Kumar Mishra Dr. "CONSTRAINTS FACED BY PERSONS WITH DISABILITIES IN EMPLOYMENT." International Journal of Research – Granthaalayah 4, no. 3 (2017): 182–87. https://doi.org/10.5281/zenodo.847036.

Full text

Abstract:

The study is absolutely an observational study used to measure empowerment of persons with disabilities through the improvement of entrepreneurial quality, development and imagination. Further research is expected to create, assess, evaluate, the significance of present study in other developing nations. India is frequently depicted as a developing yet a youthful nation. As the nation enters its 65th year of autonomous presence the depiction of youth does not appear to be excessively suitable. It can now be termed youthful by reason of the way that half of its billion or more populace comprise

APA, Harvard, Vancouver, ISO, and other styles

26

Villanueva, B., J. A. Woolliams, and B. Gjerde. "Optimum designs for breeding programmes under mass selection with an application in fish breeding." Animal Science 63, no. 3 (1996): 563–76. http://dx.doi.org/10.1017/s1357729800015459.

Full text

Abstract:

AbstractA procedure for maximizing genetic gain (after a number of generations of selection) for a given rate of inbreeding or for a given coefficient of variation of response is presented. An infinitesimal genetic model is assumed. Mass selection is practised for a number of discrete generations. With constraints on inbreeding, expected rates of genetic progress (ΔG) are combined with expeced rates of inbreeding (ΔF) in a linear objective function (Ω = ΔG - μΔF). In addition, an expression to approximate the rate of gain at any generation accounting for changes in genetic parameters due to li

APA, Harvard, Vancouver, ISO, and other styles

27

Zegarelli, Angela, Michela Fasano, Silvia Celli, Dafne Guetta, Antonio Capone, and Irene Di Palma. "Neutrino predictions from choked Gamma-Ray Bursts and comparison with the observed cosmic diffuse neutrino flux." EPJ Web of Conferences 280 (2023): 09005. http://dx.doi.org/10.1051/epjconf/202328009005.

Full text

Abstract:

The strong constraints from the Fermi-LAT data on the isotropic gamma-ray background suggest that the neutrinos observed by IceCube might possibly come from sources that are hidden to gamma-ray observations. A possibility emerged in recent years is that neutrinos may come from jets of collapsing massive stars which fail to break out of the stellar envelope, and for this reason they are known as choked jets, or choked Gamma-Ray Bursts (GRBs). We here show our predictions of neutrino flux and spectrum expected from these sources, focusing on Type II SNe, through detailed calculations of pγ inter

APA, Harvard, Vancouver, ISO, and other styles

28

GRUNDY, B., B. VILLANUEVA, and J. A. WOOLLIAMS. "Dynamic selection procedures for constrained inbreeding and their consequences for pedigree development." Genetical Research 72, no. 2 (1998): 159–68. http://dx.doi.org/10.1017/s0016672398003474.

Full text

Abstract:

A novel selection algorithm for maximizing genetic response while constraining the rate of inbreeding is presented. It is shown that the proposed method controls the rate of inbreeding by maintaining the sum of squared genetic contributions at a constant value and represents an improvement on previous procedures. To maintain a constant rate of inbreeding the contributions from all generations are weighted equally and this is facilitated by modifying the numerator relationship matrix. By considering the optimization of the contributions of many generations the initial mating proportions (the ge

APA, Harvard, Vancouver, ISO, and other styles

29

JAIN, MADHU, and KRITI PRIYA. "SOFTWARE RELIABILITY ISSUES UNDER OPERATIONAL AND TESTING CONSTRAINTS." Asia-Pacific Journal of Operational Research 22, no. 01 (2005): 33–49. http://dx.doi.org/10.1142/s021759590500042x.

Full text

Abstract:

Software reliability plays an important role in assuring the quality of a software. To ensure software reliability, the software is tested thoroughly during the testing phase. The time invested in the testing phase or the optimal software release time depends on the level of reliability to be achieved. There are two different concepts related to software reliability, viz., testing reliability and operational reliability. In this paper, we compare both types of software reliabilities to determine the optimal testing time of the software so as to minimize the total expected software maintenance

APA, Harvard, Vancouver, ISO, and other styles

30

Dong, Ding, Zheng Liu, Pengfei Wang, and Min Wei. "Inflation Disagreement Weakens the Power of Monetary Policy." Finance and Economics Discussion Series, no. 2024-094 (December 2024): 1–63. https://doi.org/10.17016/feds.2024.094.

Full text

Abstract:

We present empirical evidence that household inflation disagreement weakens the power of forward guidance and conventional monetary policy shocks. The attenuation effect is stronger when inflation forecasts are positively skewed and it is not driven by endogenous responses of inflation disagreement to contemporaneous shocks. These empirical observations can be rationalized by a model featuring heterogeneous beliefs about the central banks' inflation target. An agent who perceives higher future inflation also perceives a lower real interest rate and thus borrows more to finance consumption, sub

APA, Harvard, Vancouver, ISO, and other styles

31

Wen, Shaojie, and Chuanhe Huang. "Delay-Constrained Routing Based on Stochastic Model for Flying Ad Hoc Networks." Mobile Information Systems 2018 (August 13, 2018): 1–12. http://dx.doi.org/10.1155/2018/6056419.

Full text

Abstract:

This paper aims at solving the end-to-end delay-constrained routing problem in a local way for flying ad hoc networks (FANETs). Due to the high mobility, it is difficult for each node in FANETs to obtain the global information. To solve this issue, we propose an adaptive delay-constrained routing with the aid of a stochastic model, which allows the senders to deliver the packets with only local information. We represent the problem in a mathematical form, where the effective transmission rate is viewed as the optimization objective and the link quality and end-to-end delay as the constraints.

APA, Harvard, Vancouver, ISO, and other styles

32

AlJubayrin, Saad, Muhammad Arslan Khan, Rehan Ali Khan, Javed Khan, Kalim Ullah, and Md Yeakub Ali. "On Computational Offloading in Massive MIMO-Enabled Next-Generation Mobile Edge Computing." Wireless Communications and Mobile Computing 2022 (August 9, 2022): 1–10. http://dx.doi.org/10.1155/2022/3712859.

Full text

Abstract:

Next-generation wireless communication networks are expected to support massive connectivity with high data rate, low power consumption, and computational latency. However, it can significantly enhance the existing network complexity, which results in high latency. To ease this situation, mobile edge cloud and massive multiple input and multiple output (MIMO) have recently emerged as the effective solutions. Mobile edge cloud has the ability to overcome the constraints of low power and finite computational resources in next-generation communication systems by allowing devices to offload their

APA, Harvard, Vancouver, ISO, and other styles

33

Desmettre, Sascha, Christian Laudagé, and Jörn Sass. "Good-Deal Bounds for Option Prices under Value-at-Risk and Expected Shortfall Constraints." Risks 8, no. 4 (2020): 114. http://dx.doi.org/10.3390/risks8040114.

Full text

Abstract:

In this paper, we deal with the pricing of European options in an incomplete market. We use the common risk measures Value-at-Risk and Expected Shortfall to define good-deals on a financial market with log-normally distributed rate of returns. We show that the pricing bounds obtained from the Value-at-Risk admit a non-smooth behavior under parameter changes. Additionally, we find situations in which the seller’s bound for a call option is smaller than the buyer’s bound. We identify the missing convexity of the Value-at-Risk as main reason for this behavior. Due to the strong connection between

APA, Harvard, Vancouver, ISO, and other styles

34

Meng, Lingyan, and Dishi Zhu. "Application of Algorithms of Constrained Fuzzy Models in Economic Management." Complexity 2021 (April 15, 2021): 1–12. http://dx.doi.org/10.1155/2021/9912534.

Full text

Abstract:

Stochasticity and ambiguity are two aspects of uncertainty in economic problems. In the case of investments in risky assets, this uncertainty is manifested in the uncertainty of future returns. On the contrary, the complexity of the economic phenomenon itself and the ambiguity inherent in human thinking and judgment are characterized by indistinct boundaries. For the same problem, research from different perspectives can often provide us with more comprehensive and systematic information. Currently, the expected value of return or the variance representing risk is still used as a rational inve

APA, Harvard, Vancouver, ISO, and other styles

35

Sui, Yunyun, Jiangshan Hu, and Fang Ma. "A Mean-Variance Portfolio Selection Model with Interval-Valued Possibility Measures." Mathematical Problems in Engineering 2020 (August 29, 2020): 1–12. http://dx.doi.org/10.1155/2020/4135740.

Full text

Abstract:

In recent years, fuzzy set theory and possibility theory have been widely used to deal with an uncertain decision environment characterized by vagueness and ambiguity in the financial market. Considering that the expected return rate of investors may not be a fixed real number but can be an interval number, this paper establishes an interval-valued possibilistic mean-variance portfolio selection model. In this model, the return rate of assets is regarded as a fuzzy number, and the expected return rate of assets is measured by the interval-valued possibilistic mean of fuzzy numbers. Therefore,

APA, Harvard, Vancouver, ISO, and other styles

36

Charles, P. A., A. D. Barnes, J. Casares, et al. "SS433: The Microquasar Link with ULXS?" International Astronomical Union Colloquium 194 (July 2004): 50–52. http://dx.doi.org/10.1017/s0252921100151875.

Full text

Abstract:

AbstractSS433 is the prototype microquasar in the Galaxy and may even be analogous to the ULX sources if the jets kinetic energy is taken into account. However, in spite of 20 years of study, our constraints on the natur of the binary system are extremely limited as a result of the difficulty of locating spectral features that can reveal the nature and motion of the mass donor. Newly acquired, high resolution blue spectra taken when the (precessing) disc is edge-on suggest that the binary is close to a common-envelope phase, and hence providing kinematic constraints is extremely difficult. Nev

APA, Harvard, Vancouver, ISO, and other styles

37

Kim, Seokjung, Jongkwan Kim, Homin Song, and Mintaek Yoo. "Development of an Optimization-Based Budget Allocation Model for Seismic Strengthening Based on Seismic Risk Assessment." Buildings 14, no. 8 (2024): 2479. http://dx.doi.org/10.3390/buildings14082479.

Full text

Abstract:

This study presents a technology used for the prediction of economic losses to facilities in a given area during an earthquake, thereby enabling the efficient application of performance-based maintenance and seismic strengthening. We also propose an algorithm for the establishment of a reinforcement plan that minimizes earthquake-induced economic losses within a constrained budget. The algorithm incorporates fragility functions from prior research and utilizes an optimization technique for budget allocation, leveraging the target damage ratio concept and constrained optimization. Based on the

APA, Harvard, Vancouver, ISO, and other styles

38

Nguyen, Thi Quyen. "CONSTRAINTS ON THE VARIABILITY IN ENGLISH VOICE ONSET TIME PRODUCTION: EVIDENCE FROM SPONTANEOUS SPEECH." VNU Journal of Foreign Studies 39, no. 4 (2023): 88–101. http://dx.doi.org/10.63023/2525-2445/jfs.ulis.5087.

Full text

Abstract:

Voice onset time (VOT) - an aspect of stop production, is known to be constrained by a number of word-level and speaker-level factors. While there has been extensive experimental research on VOT production, few studies have situated this aspect in naturally-occurring spontaneous speech. The goal of this study is twofold. First, we determine if the factors that affect VOT production in experimental studies conducted in speech laboratories are also relevant for VOT production in spontaneous speech. Second, we explore the possible interactions among those factors. In this study, a spoken corpus c

APA, Harvard, Vancouver, ISO, and other styles

39

Huang, Yin-Yin, I.-Fei Chen, Chien-Liang Chiu, and Ruey-Chyn Tsaur. "Adjustable Security Proportions in the Fuzzy Portfolio Selection under Guaranteed Return Rates." Mathematics 9, no. 23 (2021): 3026. http://dx.doi.org/10.3390/math9233026.

Full text

Abstract:

Based on the concept of high returns as the preference to low returns, this study discusses the adjustable security proportion for excess investment and shortage investment based on the selected guaranteed return rates in a fuzzy environment, in which the return rates for selected securities are characterized by fuzzy variables. We suppose some securities are for excess investment because their return rates are higher than the guaranteed return rates, and the other securities whose return rates are lower than the guaranteed return rates are considered for shortage investment. Then, we solve th

APA, Harvard, Vancouver, ISO, and other styles

40

Karki, Tika Bahadur, Reshama Neupane, Rajendra Kumar Bhattarai, et al. "Direct Seeded Rice Might Be One of the Potential Climate Smart Agricultural Technologies in Nepal." Agronomy Journal of Nepal 7 (July 10, 2023): 28–35. http://dx.doi.org/10.3126/ajn.v7i1.62062.

Full text

Abstract:

The conventional system of puddled transplanting of rice (PTR) with intensive tillage is common practice of rice growing in Nepal. It has many negative impacts on soil, water, labor, climate change and gender equality. Therefore, an alternative production system has been explored. Direct seeded rice (DSR) has been one of the potential systems of rice production in Nepal. The results of various studies on DSR revealed that it saves labor, requires less water, less drudgery, less energy, early crop maturity, low cost of production, better soil physical conditions and less greenhouse gas emission

APA, Harvard, Vancouver, ISO, and other styles

41

Evans, F. A., T. Marchetti, and E. M. Rossi. "Constraints on the Galactic Centre environment from Gaia hyper-velocity stars." Monthly Notices of the Royal Astronomical Society 512, no. 2 (2022): 2350–64. http://dx.doi.org/10.1093/mnras/stac495.

Full text

Abstract:

ABSTRACT Following a dynamical encounter with Sgr A*, binaries in the Galactic Centre (GC) can be tidally separated and one member star ejected as a hyper-velocity star (HVS) with a velocity beyond the escape speed of the Milky Way. As GC-born objects located in more observationally accessible regions of the sky, HVSs offer insight into the stellar population in the inner parsecs of the Milky Way. We perform a suite of simulations ejecting stars from the GC, exploring how detectable HVS populations depend on assumptions concerning the GC stellar population, focusing on HVSs that would appear i

APA, Harvard, Vancouver, ISO, and other styles

42

Chen, Ta-Cheng, Sheng-Chuan Wang, and Wen-Cheng Tseng. "Using a Hybrid Evolutionary Algorithm for Solving Signal Transmission Station Location and Allocation Problem with Different Regional Communication Quality Restriction." International Journal of Engineering and Technology Innovation 10, no. 3 (2020): 165–78. http://dx.doi.org/10.46604/ijeti.2020.5054.

Full text

Abstract:

This study aims to investigate the signal transmission station location-allocation problems with the various restricted regional constraints. In each constraint, the types of signal transmission stations and the corresponding numbers and locations are to be decided at the same time. Inappropriate set up of stations is not only causing the unnecessary cost but also making the poor service quality. In this study, we proposed a hybrid evolutionary approach integrating the immune algorithm with particle swarm optimization (IAPSO) to solve this problem where each of the regions is with different ma

APA, Harvard, Vancouver, ISO, and other styles

43

Liang, Minjie, Yufei Xie, and Shiyu Xie. "Research on vegetable pricing and replenishment strategy based on genetic algorithm." Highlights in Science, Engineering and Technology 92 (April 10, 2024): 453–58. http://dx.doi.org/10.54097/vc4pnf67.

Full text

Abstract:

In this paper, the average sales volume and cost plus pricing of 6 categories of vegetables are calculated. The regression analysis is carried out by using R language. Then, with profit maximization as the objective function and annual sales volume, replenishment volume, unit price of sales and loss rate as the constraint conditions, a quadratic programming model is established. The total replenishment of flowers and leaves, cauliflower, aquatic rhizome, capsicum, nightshade and edible fungi from July 1 to 7, 2023 was 111.27, 22.82, 21.24, 46.88, 14.23 and 40.40 kg, respectively. The expected

APA, Harvard, Vancouver, ISO, and other styles

44

Xie, Fu-Guo, Ramesh Narayan, and Feng Yuan. "Observational Constraints on Direct Electron Heating in the Hot Accretion Flows in Sgr A* and M87*." Astrophysical Journal 942, no. 1 (2022): 20. http://dx.doi.org/10.3847/1538-4357/aca534.

Full text

Abstract:

Abstract An important parameter in the theory of hot accretion flows around black holes is δ, which describes the fraction of “viscously” dissipated energy in the accretion flow that goes directly into heating electrons. For a given mass accretion rate, the radiative efficiency of a hot accretion flow is determined by δ. Unfortunately, the value of δ is hard to determine from first principles. The recent Event Horizon Telescope Collaboration (EHTC) results on M87* and Sgr A* provide us with a different way of constraining δ. By combining the mass accretion rates in M87* and Sgr A* estimated by

APA, Harvard, Vancouver, ISO, and other styles

45

Hong, Sothea, Pierre-Olivier Malaterre, Gilles Belaud, and Cyril Dejean. "Optimization of water distribution for open-channel irrigation networks." Journal of Hydroinformatics 16, no. 2 (2013): 341–53. http://dx.doi.org/10.2166/hydro.2013.194.

Full text

Abstract:

Water distribution for open-channel irrigation networks is more and more complex due to increasing constraints on water resources and changing demand patterns, whereas the performance of such systems is expected to increase. In this regard, an optimization approach is developed in order to schedule a fair scenario of water distribution among different users, where water demand is formulated in term of start time, duration and flow rate. This study investigates how to optimize the water distribution over a finite scheduling horizon while respecting the constraints linked to the system. The opti

APA, Harvard, Vancouver, ISO, and other styles

46

Ellis, J. A. "Constraining Supermassive Black Hole Binary Dynamics Using Pulsar Timing Data." Proceedings of the International Astronomical Union 11, A29B (2015): 336–43. http://dx.doi.org/10.1017/s1743921316005482.

Full text

Abstract:

AbstractThe most likely sources of nanohertz gravitational waves (GWs) are supermassive black holes (SMBHs) at the center of merging galaxies. A stochastic superposition of GWs from these sources is expected to produce a stochastic GW background that will leave a unique signature in the correlations of arrival times of pulses from a collection of radio pulsars. Using the 9-year data release from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) collaboration, we perform the first analysis that places constraints on the amplitude and shape of the stochastic GW backgrou

APA, Harvard, Vancouver, ISO, and other styles

47

Antinozzi, Giovanni, Matteo Martinelli, and Roberto Maoli. "Forecast cosmological constraints from the number counts of Gravitational Waves events." Journal of Cosmology and Astroparticle Physics 2024, no. 05 (2024): 017. http://dx.doi.org/10.1088/1475-7516/2024/05/017.

Full text

Abstract:

Abstract We present a forecast for the upcoming Einstein Telescope (ET) interferometer with two new methods to infer cosmological parameters. We consider the emission of Gravitational Waves (GWs) from compact binary coalescences, whose electromagnetic counterpart is missing, namely Dark Sirens events. Most of the methods used to infer cosmological information from GW observations rely on the availability of a redshift measurement, usually obtained with the help of external data, such as galaxy catalogues used to identify the most likely galaxy to host the emission of the observed GWs. Instead,

APA, Harvard, Vancouver, ISO, and other styles

48

Xu, Senyu, Huajun Tang, and Zhijun Lin. "Inventory and Ordering Decisions in Dual-Channel Supply Chains Involving Free Riding and Consumer Switching Behavior with Supply Chain Financing." Complexity 2021 (April 11, 2021): 1–23. http://dx.doi.org/10.1155/2021/5530124.

Full text

Abstract:

This study introduces a dual-channel supply chain including a supplier and a retailer with capital constraints, in which the retailer can apply for the trade credit financing from the supplier. This work investigates the effects of two typical behaviors, free riding behavior and consumer switching behavior, on inventory, ordering, and sales effort decisions in decentralized and centralized decision situations with stochastic demand. In order to achieve the optimal performance in the centralized system, this research designs a partial buyback contract to coordinate the supply chain. Furthermore

APA, Harvard, Vancouver, ISO, and other styles

49

Kovalam, Manoj, Md Anwarul Kaium Patwary, Anala K. Sreekumar, Linqing Wen, Fiona H. Panther, and Qi Chu. "Early Warnings of Binary Neutron Star Coalescence Using the SPIIR Search." Astrophysical Journal Letters 927, no. 1 (2022): L9. http://dx.doi.org/10.3847/2041-8213/ac5687.

Full text

Abstract:

Abstract Gravitational waves from binary neutron star mergers can be used as alerts to enable prompt follow-up observations. In particular, capturing prompt electromagnetic and astroparticle emissions from the moment of a binary merger presents unique constraints on the timescale and sky localization for online gravitational-wave detection. Here we present the expected performance of the SPIIR online detection pipeline that is designed for this purpose in the upcoming international LIGO–Virgo’s 4th Science Run (O4). Using simulated Gaussian data for the two LIGO observatories with expected O4

APA, Harvard, Vancouver, ISO, and other styles

50

Lorenz, David J., and Eric T. DeWeaver. "The Response of the Extratropical Hydrological Cycle to Global Warming." Journal of Climate 20, no. 14 (2007): 3470–84. http://dx.doi.org/10.1175/jcli4192.1.

Full text

Abstract:

Abstract The change in the hydrological cycle in the extratropics under global warming is studied using the climate models participating in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report. The changes in hydrological quantities are analyzed with respect to the increases expected from the Clausius–Clapeyron (C–C) equation, which describes the rate of increase of a hydrological quantity per temperature increase. The column-integrated water vapor increases at a rate close to the C–C rate, which is expected if relative humidity remains nearly constant. The poleward mo

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!