Browsing Journal Articles by Author "Jayaswal, Sachin"
Now showing items 1-16 of 16
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Alternate solution approaches for competitive hub location problems
Tiwari, Richa; Jayaswal, Sachin; Sinha, Ankur (European Journal of Operational Research, 2020-08-08)In this paper, we study the hub location problem of an entrant airline that tries to maximize its share in a market with already existing competing players. The problem is modeled as a non-linear integer program, which is ... -
Balancing U-shaped assembly lines with resource dependent task times: a simulated annealing approach
Jayaswal, Sachin; Agarwal, Prashant (Elsevier, 2014)The advent of Just-in-Time (JIT) and Group Technology philosophies has popularized U-shaped assembly lines, which help overcome many of the disadvantages, like line inflexibility, job monotony, large inventories, etc., ... -
Bandwidth packing problem with queueing delays: modelling and exact solution approach
Jayaswal, Sachin; Vidyarthi, N.; Tirumala Chetty, V.B. (Springer New York LLC, 2016)We present a more generalized model for the bandwidth packing problem with queuing delays under congestion than available in the extant literature. The problem, under Poison call arrivals and general service times, is set ... -
Capacitated multi-period maximal covering location problem with server uncertainty
Vatsa, Amit Kumar; Jayaswal, Sachin (European Journal of Operational Research, 2020-08-07)We study the problem of assigning doctors to existing, non-operational Primary Health Centers (PHCs). We do this in the presence of clear guidelines on the maximum population that can be served by any PHC, and uncertainties ... -
Capacitated multiple allocation hub location problems under the risk of interdiction: model formulations and solution approaches
Bansal, Vishal; Jayaswal, Sachin; Sinha, Ankur (Springer Nature, 2023-08-31)Hub-and-spoke networks play a critical role in reducing cost and enhancing service levels in various infrastructural sectors since hubs act as the consolidation and transshipment points of the flows. The failure of hubs ... -
Competitive hub location problems: model and solution approaches
Tiwari, Richa; Jayaswal, Sachin; Sinha, Ankur (Elsevier, 2021-03-07)In this paper, we study the hub location problem of an airline that wants to set up its hub and spoke network, in order to maximize its market share in a competitive market. The market share is maximized under the assumption ... -
A cutting plane approach to combinatorial bandwidth packing problem with queuing delays
Jayaswal, Sachin; Vidyarthi, Navneet; Das, Sagnik (Springer Verlag, 2017)The combinatorial bandwidth packing problem (CBPP), arising in a telecommunication network with limited bandwidth, is defined as follows. Given a set of requests, each with its potential revenue, and each consisting of ... -
Directed fixed charge multicommodity network design: a cutting plane approach using polar duality
Agarwal, Y. K.; Aneja, Y. P.; Jayaswal, Sachin (Elsevier, 2021-09-10)We present an efficient cutting-plane based approach to exactly solve a directed fixed charge network design (DFCND) problem, wherein the valid inequalities to the problem are generated using the polar duality approach. ... -
Efficient solution of a class of location-allocation problems with stochastic demand and congestion
Vidyarthi, Navneeta; Jayaswal, Sachin (Elsevier Ltd, 2014)We consider a class of location–allocation problems with immobile servers, stochastic demand and congestion that arises in several planning contexts: location of emergency medical clinics; preventive healthcare centers; ... -
Facility location under service level constraints for heterogeneous customers
Jayaswal, Sachin; Vidyarth, Navneet (Springer, 2016)We study the problem of locating service facilities to serve heterogeneous customers. Customers requiring service are classified as either high priority or low priority, where high priority customers are always served on ... -
An integrated bottom-up optimization to investigate the role of BECCS in transitioning towards a net-zero energy system: a case study from Gujarat, India
Patange, Omkar S.; Garg, Amit; Jayaswal, Sachin (Elsevier, 2022-06-15)Bringing down energy system emissions to zero is a key step to restrict the global temperature rise to “well below 2 °C”. Recent studies have extensively discussed the integration of bioenergy with carbon capture and storage ... -
Multiple allocation hub interdiction and protection problems: model formulations and solution approaches
Ramamoorthy, Prasanna; Jayaswal, Sachin; Sinha, Ankur; Vidyarthi, Navneet (Elsevier, 2018-03-29)In this paper, we present computationally efficient formulations for the multiple allocation hub interdiction and hub protection problems, which are bilevel and trilevel mixed integer linear programs, respectively. In the ... -
Multiple allocation hub location with service level constraints for two shipment classes
Jayaswal, Sachin; Vidyarthi, Navneet (Elsevier, 2023-02-07)In this paper, we study a hub network design problem arising in the context of a third-party logistics (3PL) service provider, which acts as an intermediary between shippers and carriers. A 3PL service provider usually ... -
A new formulation and benders decomposition for the multi-period maximal covering facility location problem with server uncertainty
Jayaswal, Sachin; Vatsa, Amit Kumar (Elsevier, 2016)Facility location problems reported in the literature generally assume the problem parameter values (like cost, budget, etc.) to be known with complete certainty, even if they change over time (as in multi-period versions). ... -
Price and lead time differentiation, capacity strategy and market competition
Jayaswal, Sachin; Jewkes, E.M. (Taylor and Francis Ltd., 2016)We study a duopoly market in which customers are heterogeneous, and can be segmented as price or time sensitive. Each firm tailors (differentiates) its products/services for the two customer classes solely based on guaranteed ... -
Product differentiation and operations strategy in a capacitated environment
Jayaswal, Sachin; Jewkes, Elizabeth M.; Ray, Saibal (2011-09-07)We study a firm selling two products/services, which are differentiated solely in their prices and delivery times, to two different customer segments in a capacitated environment. From a demand perspective, when both ...