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Optimization for dynamic inverted index maintenance

D. Cutting, J. Pedersen
1990 Proceedings of the 13th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '90  
For free-text search over rapidly evolving corpora, dynamic update of inverted indices is a basic requirement.  ...  Index Size: The amount of storage required for the inverted index. Since some record must be made for each posting, the inverted index must be proportional to the number of postings.  ...  Dynamics: The ease with which the inverted index is incrementally updated. This is particularly important for rapidly evolving corpora. Insertion is typically more common than deletion.  ... 
doi:10.1145/96749.98245 dblp:conf/sigir/CuttingP90 fatcat:tfteib4e65dsnko3pjcekhzuxq

A Hybrid Approach to Index Maintenance in Dynamic Text Retrieval Systems [chapter]

Stefan Büttcher, Charles L. A. Clarke
2006 Lecture Notes in Computer Science  
In-place and merge-based index maintenance are the two main competing strategies for on-line index construction in dynamic information retrieval systems based on inverted lists.  ...  Motivated by recent results for both strategies, we investigate possible combinations of in-place and merge-based index maintenance.  ...  For on-line index maintenance in dynamic search environments, the situation is different.  ... 
doi:10.1007/11735106_21 fatcat:q3k6l2fprrbgladxxzxnhbcuey

Performance Evaluation of SSD-Index Maintenance Schemes in IR Applications

Du-Seok Jin, Hoe-Kyung Jung
2010 Journal of information and communication convergence engineering  
Therefore, using the experimental performance evaluation of various index maintenance schemes on the new storage device, we propose an efficient index structure for new storage device that improves significantly  ...  the index maintenance speed without degradation of query performance.  ...  In particular, for the dynamic index maintenance, we identified what is the property that strong effect on the performance and how the property affects the dynamic indexing schemes.  ... 
doi:10.6109/jicce.2010.8.4.377 fatcat:qxmmi3yszndopm4tpvci7joou4

Efficient Geo-Textual Hybrid Indexing Techniques for Moving Objects and Queries

2020 International journal of recent technology and engineering  
In this paper a solution is proposed for creating and maintaining hybrid index for moving objects and queries based on grid and inverted list hybrid indexing techniques.  ...  In case of moving objects, capturing current position of the object and maintaining spatial index optimally is very much essential.  ...  Also in main memory R-tree very expensive to maintain dynamically. Hence this research focuses on Grid-Inverted List hybrid index to optimize the maintenance and query execution cost.  ... 
doi:10.35940/ijrte.f9142.038620 fatcat:hgo4rbblpnbe5op3fthqcnzska

Full-text indexing and information retrieval in P2P systems

Odysseas Papapetrou
2008 Proceedings of the 2008 EDBT Ph.D. workshop on - Ph.D. '08  
The high dynamics in these networks and the high cost for building and maintaining indices over Distributed Hashtables make full text indexing and information processing difficult to scale for large P2P  ...  Current distributed IR approaches are not readily applicable for P2P scenarios.  ...  We investigate the following problems: • Reducing the inverted index maintenance cost.  ... 
doi:10.1145/1387150.1387158 fatcat:mvvdhfinrjfmrb5k35pt6czg5e


Kusum Lata, Rashmi Jatain
2013 International Journal of Computer Applications Technology and Research  
In this paper, we design and formulate the inverted list based approach for providing safer path and effective communication in DSR protocol.Some nodes in network can participate in network more frequenctly  ...  Dynamic source routing protocol (DSR) is an on-demand, source routing protocol , whereby all the routing information is maintained (continually updated) at mobile nodes.  ...  In particular, for each term t, the index contains an inverted list It consisting of a number of index postings.  ... 
doi:10.7753/ijcatr0203.1016 fatcat:jwahpsmlz5fsxlt25427lawcy4

Hybrid index maintenance for growing text collections

Stefan Büttcher, Charles L. A. Clarke, Brad Lushman
2006 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '06  
These new strategies improve upon recent results for hybrid index maintenance in dynamic text retrieval systems.  ...  We present a new family of hybrid index maintenance strategies to be used in on-line index construction for monotonically growing text collections.  ...  maintenance for dynamic text collections.  ... 
doi:10.1145/1148170.1148233 dblp:conf/sigir/ButtcherCL06 fatcat:o7s5mofubzg5rkdle65wnm337q

Optimal Design Of A Pv/Diesel Hybrid System For Decentralized Areas Through Economic Criteria

D. Tsuanyo, D. Aussel, Y. Azoumah, P. Neveu
2015 Zenodo  
The system obtained is slightly cost effective; but could be improved with optimized tariffing strategies.  ...  of the components, number of component) and dynamical characteristics in real time (number of Diesel generator on, their load rate, fuel specific consumptions, and PV penetration rate) of the system.  ...  cost 0.9 €/liter TABLE II SOME TECHNICAL PARAMETERS PV maintenance rate: mPV: 2% PV life span 25 years PV lost factor 90% Inverter Inverter lifespan 8 years Inverter efficiency 90% Diesel  ... 
doi:10.5281/zenodo.1100441 fatcat:yspqiwy6rnbc3olrope4knccee

Multi-objective Optimal Parameter Design of Nanofilters and Heat Sink Fins in Train Traction Motor Drive System

Jian-Long Kuo
2021 Sensors and materials  
The optimal parameter design of the heat sink modules in the train traction motor drive system can be applied to provide effective information for an intelligent maintenance system (IMS) of the heat sink  ...  The three major control factors selected for the RSM are the mileage of nanofilter usage, the nanofilter type, and the limited current of the inverter.  ...  Optimal Solution of Statistical Model by Orthogonal Particle Swarm Optimization OPSO derivation Particle swarm optimization emulates the group dynamic behavior of animals.  ... 
doi:10.18494/sam.2021.3272 fatcat:oshkujbbszctbjphqvuosx2y4u

Development of smart grid technology to maintain the functioning of photoelectric charging stations

Eugene Chaikovskaya
2021 Eastern-European Journal of Enterprise Technologies  
A dynamic subsystem including such components as mains, a photoelectric module, a hybrid inverter, batteries, a two-way counter Smart Meter and a charger formed the basis of the proposed technological  ...  An integrated Smart Grid system has been developed for matching the production and consumption of electric power based on a prediction of changes in the battery capacity.  ...  Optimization of the charging station operation based on mixed integer programming was presented in [12] . It was solved in a form of a diagram for the day ahead.  ... 
doi:10.15587/1729-4061.2021.235120 fatcat:mjz55c4mfbbfhdpfebclyojayq

Index [chapter]

2021 Microgrids and Methods of Analysis  
- cients of characteristic curves, 223 Particle swarm optimization (PSO), 218e219, 251, 270e272 Phase-voltage magnitudes, dynamic regulation of, 183e187 Photovoltaic (PV), 7, 59e60, 140e142, 154,  ...  - interfaced distributed energy resource units, 196 local controllers of inverter-based distributed energy resources, 136 methods performance comparison versus dynamic loads, 146e148 power management  ... 
doi:10.1016/b978-0-12-816172-2.20001-1 fatcat:viuyv6ibdvcotcj4hwtlv6tfqy

Incremental Text Indexing for Fast Disk-Based Search

Giorgos Margaritis, Stergios V. Anastasiadis
2014 ACM Transactions on the Web  
Instead, disk-based methods for incremental index maintenance substantially increase search latency with the index fragmented across multiple disk locations.  ...  Incremental text indexing for fast disk-based search.  ...  They would also like to thank Argyris Kalogeratos for his detailed feedback on an earlier draft.  ... 
doi:10.1145/2560800 fatcat:bdwpapill5g6lawoih67ojljaa

Development of Smart Grid technology for maintaining the functioning of a biogas cogeneration system

Eugene Chaikovskaya
2020 Eastern-European Journal of Enterprise Technologies  
Index: lw -local water.  ...  For this purpose, it is necessary to predict a change in power factor of the cogeneration system during the measurement of the voltage at the inlet in the inverter and at the outlet from the inverter on  ... 
doi:10.15587/1729-4061.2020.205123 fatcat:7ee2jyt5xvdqjo6awesm3fjoyu

Smart Inverters Functionalities and their Impacts on Distribution Feeders at High Photovoltaic Penetration: An Overview [article]

Temotayo O. Olowu, Arif I. Sarwat
2020 arXiv   pre-print
With this rise in PV penetration level, it becomes necessary for grid tied smart inverters (SI) to be allowed to participate in feeder voltage regulation.  ...  These PV locations were carefully selected to allow for detailed impacts studies.  ...  The use of smart inverters is fast becoming an attractive option for grid voltage optimization.  ... 
arXiv:2008.11125v1 fatcat:rjgsvk5y3narzgarigcjpjjegi

Interpretable Encrypted Searchable Neural Networks [article]

Kai Chen and Zhongrui Lin and Jian Wan and Chungen Xu
2019 arXiv   pre-print
In cloud security, traditional searchable encryption (SE) requires high computation and communication overhead for dynamic search and update.  ...  In IESNN, probabilistic learning is used to obtain search ranking for searchable index, and probabilistic query is performed based on ciphertext index, which reduces the computational complexity of query  ...  Acknowledgment This work was supported by "the Fundamental Research Funds for the Central Universities" (No. 30918012204) and "the National Undergraduate Training Program for Innovation and Entrepreneurship  ... 
arXiv:1908.04998v1 fatcat:4minzjvqwjciddqpgmznhpzime
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