Extending the superimposed codeword indexing scheme to handle incomplete information

Williams, M. Howard; Wong, Kam-Fai

doi:10.1016/s0950-7051(98)00041-0

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…This will enhance the search efficiency and speed up the evaluation of the Boolean query. Based on this approach, more sophisticated schemes may be designed to handle conjunctive components, nested components, and incomplete information (Williams & Wong, 1998) in the Boolean‐based query.…”

Section: Resultsmentioning

confidence: 99%

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Chinese document indexing based on a new partitioned signature file: Model and evaluation

Lam

Wong

2001

J. Am. Soc. Inf. Sci.

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In this article we investigate the use of signature files in Chinese information retrieval system and propose a new partitioning method for Chinese signature file based on the characteristic of Chinese words. Our partitioning method, called Partitioned Signature File for Chinese (PSFC), offers faster search efficiency than the traditional single signature file approach. We devise a general scheme for controlling the trade‐off between the false drop and storage overhead while maintaining the search space reduction in PSFC. An analytical study is presented to support the claims of our method. We also propose two new hashing methods for Chinese signature files so that the signature file will be more suitable for dynamic environment while the retrieval performance is maintained. Furthermore, we have implemented PSFC and the new hashing methods, and we evaluated them using a large‐scale real‐world Chinese document corpus, namely, the TREC‐5 (Text REtrieval Conference) Chinese collection. The experimental results confirm the features of PSFC and demonstrate its superiority over the traditional single signature file method.

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Section: Resultsmentioning

confidence: 99%

“…A document is regarded as relevant if it contains one or more words in the query. In this case, we can superimpose the signature of each word in the query to form a single query signature (Williams & Wong, 1998). This query signature can then be used for matching the signature of the documents.…”

Section: Overview Of Psfcmentioning

confidence: 99%

Chinese document indexing based on a new partitioned signature file: Model and evaluation

Lam

Wong

2001

J. Am. Soc. Inf. Sci.

Self Cite

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show abstract

Section: Resultsmentioning

confidence: 99%

Section: Overview Of Psfcmentioning

confidence: 99%

Chinese document indexing based on a new partitioned signature file: Model and evaluation

Lam¹,

Wong²,

Wong³

2001

J. Am. Soc. Inf. Sci.

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In this article we investigate the use of signature files in Chinese information retrieval system and propose a new partitioning method for Chinese signature file based on the characteristic of Chinese words. Our partitioning method, called Partitioned Signature File for Chinese (PSFC), offers faster search efficiency than the traditional single signature file approach. We devise a general scheme for controlling the trade-off between the false drop and storage overhead while maintaining the search space reduction in PSFC. An analytical study is presented to support the claims of our method. We also propose two new hashing methods for Chinese signature files so that the signature file will be more suitable for dynamic environment while the retrieval performance is maintained. Furthermore, we have implemented PSFC and the new hashing methods, and we evaluated them using a large-scale real-world Chinese document corpus, namely, the TREC-5 (Text REtrieval Conference) Chinese collection. The experimental results confirm the features of PSFC and demonstrate its superiority over the traditional single signature file method.

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Treatment of Proximal Humerus Fractures Using Philos Plate: A Retrospective Review of Records in a Tertiary Center in Nepal

Shah

Mishra

Gurung

et al. 2023

ijsr

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Introduction Treatment of proximal humerus fractures always holds a dilemma for the treating surgeon. Many treatment options are available for its management. This retrospective review of records aimed to assess the functional outcome of proximal humerus fractures treated with Proximal Humerus Internal Locking System (PHILOS) plating. Fifty-three consecutive patie Material and Methods nts were treated with PHILOS plating between August 2019 to August 2021. Adults 18-65 years with displaced closed fracture proximal humerus (displacement >1 cm and varus angulation of >45) who underwent xation with PHILOS plate were included in this study. Severely comminuted fractures, open fractures and valgus impacted fractures were excluded from the study. Patients with additional injuries to ipsilateral limb and other systems were also excluded. Neer's scoring system was recorded for visit at 3,6 and 12 weeks The average Results age was 54.3±5.8 years. As per the Neers classication system, there were 6 (11.32%) 1-part, 19 (35.85%) 2-part, 17 (32.085) and 11 (20.75%) 3 and 4-part fracture respectively. Average surgical duration was 94±10.2 minutes. Radiological union was seen at 12±4.6 weeks. There were 2 (3.77%) cases of varus collapse. Three (5.66%) cases had screw back out, which was later revised and had a favorable outcome. As per the Neer's scoring system, 7 (13.21%) cases had excellent results, 37 (69.81%) had satisfactory, 6 (11.32%) had unsatisfactory while 3 (05.66%) cases had poor outcomes. PHILOS plating has a good Conclusion functional outcome. However, proper patient selection, thorough knowledge of the anatomy and biomechanical principles are the pre-requisites for a successful surgery.

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Extending the superimposed codeword indexing scheme to handle incomplete information

Cited by 3 publications

References 18 publications

Chinese document indexing based on a new partitioned signature file: Model and evaluation

Chinese document indexing based on a new partitioned signature file: Model and evaluation

Chinese document indexing based on a new partitioned signature file: Model and evaluation

Treatment of Proximal Humerus Fractures Using Philos Plate: A Retrospective Review of Records in a Tertiary Center in Nepal

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