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  • Comparative Studies. Non-European Languages/Literatures  (24)
  • 1
    Online Resource
    Online Resource
    Elsevier BV ; 2023
    In:  Artificial Intelligence Vol. 319 ( 2023-06), p. 103874-
    In: Artificial Intelligence, Elsevier BV, Vol. 319 ( 2023-06), p. 103874-
    Type of Medium: Online Resource
    ISSN: 0004-3702
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    Language: English
    Publisher: Elsevier BV
    Publication Date: 2023
    detail.hit.zdb_id: 1468341-6
    detail.hit.zdb_id: 218797-8
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  • 2
    In: Cognition, Elsevier BV, Vol. 238 ( 2023-09), p. 105488-
    Type of Medium: Online Resource
    ISSN: 0010-0277
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    Language: English
    Publisher: Elsevier BV
    Publication Date: 2023
    detail.hit.zdb_id: 1499940-7
    detail.hit.zdb_id: 184702-8
    SSG: 5,2
    SSG: 7,11
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  • 3
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2015
    In:  The Journal of the Acoustical Society of America Vol. 138, No. 5 ( 2015-11-01), p. EL447-EL451
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 138, No. 5 ( 2015-11-01), p. EL447-EL451
    Abstract: The stopband of pipe extensional waves is an interesting natural phenomenon. This study demonstrates an important extension of this phenomenon. That is, the stopband can be effectively broadened by transmitting the waves across the joint of pipes of different thickness. The theoretical and experimental results reveal the detailed process of stopband forming along the pipe and the band broadening across the pipe joint. The result can be utilized to provide a method for logging while drilling acoustic isolation design.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2015
    detail.hit.zdb_id: 1461063-2
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  • 4
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2020
    In:  The Journal of the Acoustical Society of America Vol. 148, No. 4_Supplement ( 2020-10-01), p. 2793-2793
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 148, No. 4_Supplement ( 2020-10-01), p. 2793-2793
    Abstract: The purpose of sound field reproduction is to use loudspeakers to produce desired sound at particular locations in a given environment, which has a wide range of applications such as virtual reality, etc. The computational load required to design and implement filters involved in sound reproduction systems can be significant, especially when the desired sound has rich information over a wide frequency band. To reduce the computational load, sub-band filtering approaches are usually used in sound reproduction systems. In the present work, an approach is proposed to design the sub-band filters used in sound reproduction systems in a more convenient way, where the filter design problem is formulated into a convex optimization problem. A detailed analysis has been conducted on how to specify the response characteristics of each sub-band and how different sub-band filters can be combined into one full band filter in the design and implementation of the system. Results also show that even if the sub-band filter structure is not necessary, this approach can also be applied to reduce the computational load in designing inverse filters when the plant responses involve relatively large differences in delay time among different frequency bands.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2020
    detail.hit.zdb_id: 1461063-2
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  • 5
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2012
    In:  The Journal of the Acoustical Society of America Vol. 131, No. 4_Supplement ( 2012-04-01), p. 3310-3310
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 131, No. 4_Supplement ( 2012-04-01), p. 3310-3310
    Abstract: The present authors have been analyzing statistically the nature of the Chinese tones (Hiki et al., Proc. Int'l Symposium on Tonal Aspects of Languages, 2004, Beijing, 73-74). The letter database used is the Grammatical Knowledge-base of Contemporary Chinese, S-W. Yu, editor, Tsinghua University Press, China, 1998. In this report, the use of contrast of tones for distinguishing words within a group of homonyms is assessed, from the viewpoint of the amount of information transmitted. Among the bisyllabic words having different simplified Chinese character notation, more than 10% of the words belongs to the homonymous groups having the same Pinyin notation. However, the number of words having the same Pinyin notation and combination of tones is not so many, that about 80% of them can be distinguished by the contrast of their tones. Detailed analysis showed some characteristic distribution regarding the type of tones in the contrast, depending on whether the number of words in a homonymous group is two or more, or whether the position of syllable of the contrastive tones in bisyllabic words is first, second or both. This result is useful for guiding the beginners' Chinese tone learning.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2012
    detail.hit.zdb_id: 1461063-2
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  • 6
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 1996
    In:  The Journal of the Acoustical Society of America Vol. 99, No. 4_Supplement ( 1996-04-01), p. 2454-2457
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 99, No. 4_Supplement ( 1996-04-01), p. 2454-2457
    Abstract: Using a previously developed noise-generation model for sources due to surface processes [W. A. Kuperman and F. Ingenito, J. Acoust. Soc. Am. 67, 1988–1996 (1980)], a numerical study of ambient noise, which incorporates realistic wind wave spectrum (e.g., Pierson–Moskowitz), was made for seismoacoustic ocean wave guides. The results demonstrate a close relationship between the noise field and the source field, allowing one to gain insight to the interplay of both fields. Experimental data of ambient noise and wind waves were collected in an experimental site near the central part of Taiwan. The measured data were also used to generate numerical results of ambient noise which are then compared with experimental data. The comparison has shown a reasonable agreement in the frequency range dominated by the surface wind waves for a receiver not too close to bottom. By modeling the marine environment as a shallow- water seismoacoustic wave guide, it was demonstrated that the noise model of the noise field was greatly affected by the sediment properties. [Work supported by National Science Council of Republic of Chian (Taiwan).]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1996
    detail.hit.zdb_id: 1461063-2
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  • 7
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2020
    In:  The Journal of the Acoustical Society of America Vol. 148, No. 5 ( 2020-11-01), p. EL401-EL407
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 148, No. 5 ( 2020-11-01), p. EL401-EL407
    Abstract: High-order time lacunarity (HOT-Lac) is an effective feature for characterizing active sonar echographs of harbor environments. However, it involves high computational complexity of loop summations. Motivated by the idea of integral image, this Letter extends an echo-intensity integral sequence, a representation of filtering with time domain recursion, permitting fast and online updates of HOT-Lac in a constant number of operations. Evaluated by a set of real-world harbor data, the proposed method is capable of computing HOT-Lac extremely rapidly while maintaining equivalent area under curve performances to its off-line counterpart, demonstrating its potential for real-time surveillance of the harbor.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2020
    detail.hit.zdb_id: 1461063-2
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  • 8
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2023
    In:  The Journal of the Acoustical Society of America Vol. 153, No. 4 ( 2023-04-01), p. 1979-
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 153, No. 4 ( 2023-04-01), p. 1979-
    Abstract: Active tracking of underwater small targets is a great challenge with kinematic information alone. This is because the active sonar often encounters multipath propagation and the induced clutter can even mask target echoes. Recently, high-order time lacunarity (HOT-Lac) has shown its ability in effectively highlighting “blob” targets from high clutter harbor environments. Hence, this paper proposes a HOT-Lac aided track scoring mechanism to solve the ambiguity of data association within the framework of Multiple Hypotheses Tracking (MHT). Specifically, the trajectory consistency of potential targets is captured by a momentum accumulation of the HOT Lac feature, which can inherit the historical information for the whole track. Meanwhile, due to the separability of the distribution of target and clutter in the HOT-Lac feature space, the probabilities of the target hypothesis and null hypothesis are modeled by the online computation of the HOT-Lac feature. Finally, the cumulative likelihood ratio based on HOT-Lac is integrated into MHT to score the potential tracks. Experiments in several real-world harbor scenarios demonstrate that the proposed HOT-Lac feature-aided tracker can suppress false tracks accurately and quickly.
    Type of Medium: Online Resource
    ISSN: 0001-4966
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2023
    detail.hit.zdb_id: 1461063-2
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  • 9
    Online Resource
    Online Resource
    Acoustical Society of America (ASA) ; 2023
    In:  The Journal of the Acoustical Society of America Vol. 153, No. 2 ( 2023-02-01), p. 1427-1438
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 153, No. 2 ( 2023-02-01), p. 1427-1438
    Abstract: Spatial-temporal variations of active sonar echo intensity can provide effective motion information for characterizing intruding small targets and play a key role in follow-up tracking, behavioral analysis, and recognition, etc. Inspired by the idea of optical flow, which can be used to calculate subtle spatial-temporal variations of each pixel in image sequences, a different motion acoustic flow field (MAFF) is proposed for estimating the motion of underwater small targets in successive active sonar echographs from harbor environments. This is because directly applying current calculation framework for optical flow presents two challenges in this case. The first challenge is that the echo intensity fluctuation breaks its potential assumption of brightness consistency in the pre-processing stage. The second challenge is that the small size of the blob targets could be smoothed out as outliers by its median filter-based post-processing. Hence starting from the classical optical flow equation, MAFF introduces a novel spatial-temporal connected component pre-processing and a novel blob shape segmentation refinement post-processing. Experiments on a set of real-world harbor datasets demonstrate the efficacy of our MAFF calculation framework.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2023
    detail.hit.zdb_id: 1461063-2
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  • 10
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2023
    In:  Journal of Psycholinguistic Research Vol. 52, No. 5 ( 2023-10), p. 1855-1874
    In: Journal of Psycholinguistic Research, Springer Science and Business Media LLC, Vol. 52, No. 5 ( 2023-10), p. 1855-1874
    Type of Medium: Online Resource
    ISSN: 0090-6905 , 1573-6555
    RVK:
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    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2017227-8
    SSG: 5,2
    SSG: 7,11
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