Results 231 to 240 of about 151,942 (250)

Lifespan-based Partitioning of Index Structures for Time-travel Text Search

Proceedings of the 24th ACM International on Conference on Information and Knowledge Management, 2015
Time-travel text search over a temporally evolving document collection is useful in various applications. Supporting a wide range of query classes demanded by these applications require different index layouts optimized for their respective query access patterns.
Animesh Nandi, Suriya Subramanian, Sriram Lakshminarasimhan, Prasad M. Deshpande, Sriram Raghavan   +4 more
openaire   +1 more source

Adaptive Travel Time Path Selection in Hierarchical Index Road Network

2006 IEEE International Conference on Systems, Man and Cybernetics, 2006
It is the truth that spending life on the road is not fun. Therefore, every driver is searching for the "shortest path" for their traveling. Since the real objective is the smallest time frame that the driver spends on the road before arriving at the required destination.
Adisak Sukul, Pattarasinee Bhattarakosol
openaire   +1 more source

Traffic and Transit Travel Time Reliability Indexes and Confidence Intervals

Transportation Research Record: Journal of the Transportation Research Board, 2017
As congestion worsens, the importance of rigorous methodologies to estimate travel time reliability increases. Exploiting fine-granularity transit GPS data, this research proposes a novel method to estimate travel time percentiles and confidence intervals.
Travis B. Glick, Miguel A. Figliozzi
openaire   +1 more source

Statistical Modeling of Quartiles, Standard Deviation, and Buffer Time Index of Optimal Tour in Traveling Salesman Problem and Implications for Travel Time Reliability

Transportation Research Record: Journal of the Transportation Research Board, 2020
The traveling salesman problem (TSP) plays an important role in the field of transportation and logistics. While most studies focus on developing algorithms to find the shortest path and explore the average length of the shortest paths, the degree to which the shortest path deviates from its mean has not been studied.
Hongtai Yang, Xiuqin Liang, Zhaolin Zhang, Yugang Liu, Malik Muneeb Abid   +4 more
openaire   +1 more source

Measuring Traffic Congestion with Taxi GPS Data and Travel Time Index

CICTP 2015, 2015
In an era of increasing urban traffic congestion, cities in China still lack a comparable congestion indicator. Aiming to fill this gap, the authors computed the travel time index (TTI) with taxi global positioning system (GPS) data. Their TTI is the ratio of the travel time during the period of interest to the travel time during free-flow conditions ...
Xiangfu Kong, Jiawen Yang, Zhongyu Yang
openaire   +1 more source

Travel Time as an Index of Social Environmental Quality- Its Allocational Considerations-

IFAC Proceedings Volumes, 1977
Abstract To evaluate living environment adequately, some measurement on the degree of the convenience should be made and be taken into consideration together with various natural environmental measurements. with this viewpoint, travel convenience of each individual has been taken as an important quality factor of the social environment, and this ...
Sachihiko Harashina, Yoshinobu Kumata
openaire   +1 more source

Design of distributed feedback lasers grown on Si using time-domain traveling wave model combined with mode refractive index method

Laser Physics, 2023
Abstract This paper proposes an optimization method combining the time-domain traveling wave model and the mode refractive index method, employed for characterizing both the transverse and longitudinal modes of quantum dot distributed feedback (DFB) lasers grown on Si.
Rui Ming, Jun Wang, Shuaicheng Liu, Qing Ge, Feng Lin, Hao Zhai, Bojie Ma, Zhuoliang Liu, Hao Liu, Yiming Bai, Shiwei Cai, Yongqing Huang, Xiaomin Ren   +12 more
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Skippy

Proceedings of the 2008 ACM SIGMOD international conference on Management of data, 2008
The storage manager of a general-purpose database system can retain consistent disk page level snapshots and run application programs "back-in-time" against long-lived past states, virtualized to look like the current state. This opens the possibility that functions, such as on-line trend analysis and audit, formerly available in specialized temporal ...
Ross Shaull, Liuba Shrira, Hao Xu
openaire   +1 more source

Video indexed VM continuous checkpoints

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video, 2010
Running 3D applications such as computer games over virtualized platform is gaining popularity among virtual machine users. This paper presents a novel continuous virtual machine checkpointing and replay system that combines virtual 3D graphics support, continuous and high frequency virtual machine checkpointing, and virtual machine time travel.
Weidong Shi, Yang Lu
openaire   +1 more source

Developing and Applying Models for Estimating Arterial Corridor Travel Time Index for Transportation Planning in Small to Medium-Sized Communities

Transportation Research Record: Journal of the Transportation Research Board, 2011
This paper describes research with the objective of developing and validating a corridor arterial model to estimate the travel time index (TTI) for mobility analysis. The TTI is the ratio of the travel rate (minutes per mile) during the peak period to the travel rate (minutes per mile) during the off-peak period.
William L. Eisele, Yunlong Zhang, Eun Sug Park, Yanru Zhang, Rachael Stensrud   +4 more
openaire   +1 more source