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四月一日(二)晴。有云。八时半,到部办公。九时,与夏衍同志一同主持招(召)开赴西欧的近百年画展的讨论会。决定了一个以我为主持人的筹备会。十一时,到考古研究所,(与)尹达、夏[]二同志,讨论三门峡水库地区的考古发掘事。下午,在家理书、看书。夜七时半,到故宫博物院参加部整风小组的扩大会议。十时回。四月二日(三)晴。八时半,到文学研究所。九时,参加大会。由唐棣华副所长作第二次的检查。我也说了几句话。下午五时许,到修绠堂,又到东安市场旧书摊上,购了些旧书。六时许,到北京饭店参加周总理欢迎以罗马尼亚部长会议主席斯托伊卡为首的罗… 相似文献
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《记者观察(上半月)》2011,(8):38-39
林彪驭将,与众不同。他平日与下属极少私交,基本是公事公办。其人城府极深,令部下难测其际。林彪驭将,与众不同。中国但凡成功的军事家,在驾驭属下方面必有独到之处。第一 相似文献
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1.九月。江西三清山。我看到许多年轻的面孔。二OO七年的散文,与这些面孔有关。它们平日里是作为名字出现的,罗列在不同版本的目录里,以不同的字体亮相。但那个深秋的夜里,这些名字以另外的方式出现了,像表情、呼吸与交谈一样温暖和生动。这是一个散文的夜晚。距离消失了,只剩下时间。散文,成为所 相似文献
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A compressed full-text self-index for a text T, of size u, is a data structure used to search for patterns P, of size m, in T, that requires reduced space, i.e. space that depends on the empirical entropy (H
k
or H
0) of T, and is, furthermore, able to reproduce any substring of T. In this paper we present a new compressed self-index able to locate the occurrences of P in O((m + occ)log u) time, where occ is the number of occurrences. The fundamental improvement over previous LZ78 based indexes is the reduction of the search
time dependency on m from O(m
2) to O(m). To achieve this result we point out the main obstacle to linear time algorithms based on LZ78 data compression and expose
and explore the nature of a recurrent structure in LZ-indexes, the suffix tree. We show that our method is very competitive in practice by comparing it against other state of the art compressed
indexes.
相似文献
Arlindo L. OliveiraEmail: |
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《Journal of Informetrics》2014,8(4):972-984
The distribution of cumulative citations L and contributed citations Lf to individual multiauthored papers published by selected authors working in different scientific disciplines is analyzed and discussed using Langmuir-type function: yn = y0[1 − αKn/(1 + Kn)], where yn denotes the total number of normalized cumulative citations ln* and normalized contributed citations lnf* received by individual papers of rank n, y0 is the maximum value of yn when n = 0, α ≥ 1 is an effectiveness parameter, and K is the Langmuir constant related to the dimensionless differential energy Q = ln(KNc), with Nc as the number of papers receiving citations. Relationships between the values of the Langmuir constant K of the distribution function, the number Nc of papers of an individual author receiving citations and the effectiveness parameter α of this function, obtained from analysis of the data of rank-size distributions of the authors, are investigated. It was found that: (1) the quantity KNc obtained from the real citation distribution of papers of various authors working in different disciplines is inversely proportional to (α − 1) with a proportional constant (KNc)0 < 1, (2) the relation KNc = (KNc)0/(α − 1) also holds for the citation distribution of journals published in countries of two different groups, investigated earlier (Sangwal, K. (2013). Journal of Informetrics, 7, 487–504), and (3) deviations of the real citation distribution from curves predicted by the Langmuir-type function are associated with changing activity of sources of generation of items (citations). 相似文献
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Michael M. Tollefson 《Qualitative Research Reports in Communication》2019,20(1):35-41
Snickers’ “you’re not you when you’re hungry” (YNY) campaign premiered in 2010. Ad agency BBDO, New York (2017) designed the ads as the centerpiece of an expensive, celebrity-filled Super Bowl promotion. This rhetorical analysis interprets the ads in terms of celebrities serving as intertextual messages that not only sell nut-filled chocolate bars but also reinforce identity stereotypes. In particular, the ads reinforce stereotypes of traditional sex roles. The ads reward viewer knowledge that plays into these stereotypes. 相似文献
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Abstract This article introduces the Partnership for Shared Book Collections, a federation of monograph shared print programs. Collaboration of programs at the network level allows for:
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Reducing the cost of retaining the scholarly record through shared distribution of commitments;
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De-duplicating efforts;
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Developing and promoting evidence-based best practices;
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Increasing the effectiveness of communication with end-users and funders;
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Tackling large-scale projects and research that are out of reach for individual shared print programs. This shared stewardship of collection is critical as local resources are depleted due to the COVID-19 pandemic and access to print for digitization increases.
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Jennifer S. Milligan 《Archival Science》2007,7(4):359-367
Curious Archives examines the creation of the museum of archives, the Musée de l’Histoire de France, at the Imperial Archives
of France under the direction of Leon de Laborde, 1858–1867. This museum was intended as a crucial tool for publicizing the
Archives and educating the public, but also represented a break from the Archives’ role as administrative storehouse both
in practice and in the popular imagination. The museum’s conception and reception reveal conflicts around the Archives’ mission
and contents, particularly regarding public interest, the potential dangers of public curiosity, and nature of documentary
and historical knowledge in nineteenth-century France.
相似文献
Jennifer S. MilliganEmail: |
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Marnel Niles Goins 《Communication Studies》2013,64(5):531-546
Female friendships are significant to many Black females because they represent a homeplace, or a safe space. This study uses Baxter and Montgomery's (1996, 1998) relational dialectics theory and Collins’ (2000) Black feminist thought to understand the interplay of contradictions in the stories that Black females tell in their friendship groups. The contradictions embedded in the stories were finances (spending/saving), language (“good”/“bad” English), appearance (satisfaction/dissatisfaction), and race (acceptance/rejection of otherness). The interaction of these tensions showed that the friends engaged in group segregation and integration, which ultimately enabled them to freely express their culturally based truths without fear of marginalization. 相似文献
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We develop efficient dynamic programming algorithms for pattern matching with general gaps and character classes. We consider
patterns of the form p
0
g(a
0,b
0)p
1
g(a
1,b
1)…p
m−1, where p
i
⊂ Σ, Σ is some finite alphabet, and g(a
i
,b
i
) denotes a gap of length a
i
…b
i
between symbols p
i
and p
i+1. The text symbol t
j
matches p
i
iff t
j
∈ p
i
. Moreover, we require that if p
i
matches t
j
, then p
i+1 should match one of the text symbols Either or both of a
i
and b
i
can be negative. We also consider transposition invariant matching, i.e., the matching condition becomes t
j
∈ p
i
+ τ, for some constant τ determined by the algorithms. We give algorithms that have efficient average and worst case running times. The algorithms
have important applications in music information retrieval and computational biology. We give experimental results showing
that the algorithms work well in practice. 相似文献
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We consider the following autocompletion search scenario: imagine a user of a search engine typing a query; then with every
keystroke display those completions of the last query word that would lead to the best hits, and also display the best such
hits. The following problem is at the core of this feature: for a fixed document collection, given a set D of documents, and an alphabetical range W of words, compute the set of all word-in-document pairs (w, d) from the collection such that w ∈ W and d ∈ D. We present a new data structure with the help of which such autocompletion queries can be processed, on the average, in
time linear in the input plus output size, independent of the size of the underlying document collection. At the same time,
our data structure uses no more space than an inverted index. Actual query processing times on a large test collection correlate
almost perfectly with our theoretical bound.
相似文献
Ingmar WeberEmail: |
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Sandeep Chaufla 《Publishing Research Quarterly》2008,24(3):187-201
A review and analysis of the rules and regulations including the tax aspects of making an investment in India is presented.
The full range from Foreign Direct Investment to different forms of doing business with specific examples from the publishing
industry is explored to help understand current policies and regulations.
相似文献
Sandeep ChauflaEmail: Email: |
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To put an end to the large copyright trade deficit, both Chinese government agencies and publishing houses have been striving
for entering the international publication market. The article analyzes the background of the going-global strategy, and sums
up the performance of both Chinese administrations and publishers.
相似文献
Qing Fang (Corresponding author)Email: |