نتایج جستجو برای: intensification and diversification phases

تعداد نتایج: 16838735  

Journal: :Computational Social Networks 2021

Abstract The Asymmetric Distance-Constrained Vehicle Routing Problem (ADVRP) is NP-hard as it a natural extension of the Problem. In ADVRP problem, each customer visited exactly once by vehicle; every tour starts and ends at depot; traveled distance vehicle not allowed to exceed predetermined limit. We propose hybrid metaheuristic algorithm combining Randomized Variable Neighborhood Search (RVN...

Journal: :international journal of agricultural science, research and technology in extension and education systems 0
reta hailu lecturer school of environment, gender and development studies, hawassa university, ethiopia ali hassen assistant professor, college of development studies, addis ababa university, ethiopia

this article examines the livelihood strategies of land scarce peasants in ethiopian. land scarce peasants have a limited livelihood security on a sustainable manner and bypassed by major development programmes. the study was centred on two sets of rationales. first, for those peasants who do not have sufficient farmland, agriculture provides only a limited portion of households’ livelihood sec...

Journal: :CoRR 2017
Fred Glover Jin-Kao Hao

Diversification-Based Learning (DBL) derives from a collection of principles and methods introduced in the field of metaheuristics that have broad applications in computing and optimization. We show that the DBL framework goes significantly beyond that of the more recent Opposition-based learning (OBL) framework introduced in Tizhoosh (2005), which has become the focus of numerous research init...

M. Ahmad Anuar M. Doaei, Z. Ismail

Firms pursue diversification for sake enhancing financial performance. Some theories state positive relationship between diversification and financial performance. However, there are some theories for negative relationship about the issue. The study has filled the gap that most studies done in developed countries and there are fewer studies in developing country like Malaysia. In this study, re...

Journal: :international journal of management and business research 2014
m. doaei m. ahmad anuar z. ismail

firms pursue diversification for sake enhancing financial performance. some theories state positive relationship between diversification and financial performance. however, there are some theories for negative relationship about the issue. the study has filled the gap that most studies done in developed countries and there are fewer studies in developing country like malaysia. in this study, re...

Journal: :Global change biology 2017
Elinor M Lichtenberg Christina M Kennedy Claire Kremen Péter Batáry Frank Berendse Riccardo Bommarco Nilsa A Bosque-Pérez Luísa G Carvalheiro William E Snyder Neal M Williams Rachael Winfree Björn K Klatt Sandra Åström Faye Benjamin Claire Brittain Rebecca Chaplin-Kramer Yann Clough Bryan Danforth Tim Diekötter Sanford D Eigenbrode Johan Ekroos Elizabeth Elle Breno M Freitas Yuki Fukuda Hannah R Gaines-Day Heather Grab Claudio Gratton Andrea Holzschuh Rufus Isaacs Marco Isaia Shalene Jha Dennis Jonason Vincent P Jones Alexandra-Maria Klein Jochen Krauss Deborah K Letourneau Sarina Macfadyen Rachel E Mallinger Emily A Martin Eliana Martinez Jane Memmott Lora Morandin Lisa Neame Mark Otieno Mia G Park Lukas Pfiffner Michael J O Pocock Carlos Ponce Simon G Potts Katja Poveda Mariangie Ramos Jay A Rosenheim Maj Rundlöf Hillary Sardiñas Manu E Saunders Nicole L Schon Amber R Sciligo C Sheena Sidhu Ingolf Steffan-Dewenter Teja Tscharntke Milan Veselý Wolfgang W Weisser Julianna K Wilson David W Crowder

Agricultural intensification is a leading cause of global biodiversity loss, which can reduce the provisioning of ecosystem services in managed ecosystems. Organic farming and plant diversification are farm management schemes that may mitigate potential ecological harm by increasing species richness and boosting related ecosystem services to agroecosystems. What remains unclear is the extent to...

2013
Thach-Thao Duong Duc Nghia Pham Abdul Sattar M. A. Hakim Newton

Intensification and diversification are the key factors that control the performance of stochastic local search in satisfiability (SAT). Recently, Novelty Walk has become a popular method for improving diversification of the search and so has been integrated in many well-known SAT solvers such as TNM and gNovelty. In this paper, we introduce new heuristics to improve the effectiveness of Novelt...

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