Results 31 to 40 of about 6,540,973 (258)
Lasso formulation of the shortest path problem [PDF]
, 2020 The shortest path problem is formulated as an l1-regularized regression problem, known as lasso. Based on this formulation, a connection is established between Dijkstra's shortest path algorithm and the least angle regression (LARS) for the lasso problem.
Dong, Anqi +5 more
core +1 more source
Dynamic Shortest Paths Methods for the Time-Dependent TSP
Algorithms, 2021 The time-dependent traveling salesman problem (TDTSP) asks for a shortest Hamiltonian tour in a directed graph where (asymmetric) arc-costs depend on the time the arc is entered.
Christoph Hansknecht +2 more
doaj +1 more source
Finding next-to-shortest paths in a graph [PDF]
, 2004 We study the problem of finding the next-to-shortest paths in a graph. A next-to-shortest $(u,v)$-path is a shortest $(u,v)$-path amongst $(u,v)$-paths with length strictly greater than the length of the shortest $(u,v)$-path.
Krasikov, I +3 more
core +1 more source
Complexity of the Temporal Shortest Path Interdiction Problem [PDF]
, 2023 In the shortest path interdiction problem, an interdictor aims to remove arcs of total cost at most a given budget from a directed graph with given arc costs and traversal times such that the length of a shortest s-t-path is maximized. For static graphs,
Wittmann, Alina +2 more
core +1 more source
“rsppfp”: An R package for the shortest path problem with forbidden paths
SoftwareX, 2019 The Shortest Path Problem with Forbidden Paths (SPPFP) is a variant of the original shortest path problem, where the constraints come from a set of forbidden arc sequences that cannot be part of any feasible solution.
Melina Vidoni, Aldo Vecchietti
doaj +1 more source
An Algorithm for the Cycled Shortest Path Problem [PDF]
Muṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2011 For a network with cycle, where at least one cycle exists, the Floyd- Warshall algorithm is probably the most used algorithm to determine he least cost path between every pair of nodes on this network, i.e. the solution for the shortest path problem with
Asghar Aini, Amir Salehipour
doaj
A Hybrid Routing Approach Using Two Searching Layers
Electrical, Control and Communication Engineering, 2021 This paper considers SUB_GOALs by using basic A* algorithm and Subgoal Graphs in a hybrid approach to execute optimal route. SUB_GOALs identified with pre-searching from basic A* at break points and Subgoal Graphs at corners of obstacles are added to ...
Koca Gonca Ozmen, Yetkin Seda
doaj +1 more source
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
International Journal of Analysis and Applications, 2023 The Shortest Path Problem is a core problem in network optimization, with applications in various scientific and engineering fields, such as communication, transportation, routing, scheduling, and computer networks.
K. Vidhya, A. Saraswathi
doaj +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source