position+specific+posterior+lattices+for+indexing+speech

... representation of ASR lattices which retains only position informa- tion for each word. The Position Specific Posterior 443 indexing and querying is still more accurate, were it not for the OOV problem. ... answer. The position information needed for recording a given word hit is not readily available in ASR lat- tices — for details on the format of typical ASR lattices and the information stored in such lattices the ... the indexing of soft hits — a soft index stores posterior proba- bility along with the position information for term occurrences in a given document. 5.1 Speech Content Indexing Using PSPL Speech...

Ngày tải lên: 31/03/2014, 03:20

Ngày tải lên: 04/09/2013, 07:10

... Word-Class Lattices. The algorithm consists of three steps: 1320 4. The high performance as compared with the best-known methods for both definition and hypernym extraction. Our approach outper- forms ... 2010. c 2010 Association for Computational Linguistics Learning Word-Class Lattices for Definition and Hypernym Extraction Roberto Navigli and Paola Velardi Dipartimento di Informatica Sapienza Universit ` a ... systems. Similar performance is ob- served when we also account for negative sen- tences – that is we calculate accuracy (with WCL- 3 performing better). All the systems perform sig- nificantly...

Ngày tải lên: 20/02/2014, 04:20

... (triples of the form: ARG1- REL- ARG2). In SOCIS, the triples are used as complex image indexing terms; however, the extraction mechanism is used not only for indexing purposes but also for image retrieval ... scores between query- triples and indexing- triples making use of a domain -specific ontology. 1 Indexing and Retrieval of Photographs The normal practice in human indexing or cata- loguing of photographs ... they can be used as the starting point for indexing. We have focused on the devel- opment and implementation of automatic caption- based techniques for indexing and retrieval of pho- tographs...

Ngày tải lên: 22/02/2014, 02:20

... rates were 17.0 for En- glish, 18.7 for Spanish, and 22.5 for French. For English, we also created web mixture mod- els with KN smoothing. The error rates were 16.5, 15.9 and 15.7 for the 20 MB, ... (4) However, we do not know the values for ρ(q s | Q) and ρ(q t | Q). As mentioned earlier, it is straightforward to obtain a relevance ranking for a set of n-grams: For each n-gram s, the LM prob- ability ... (Sec- tion 2.2.1) for the same number of queries. Also results from language modeling and speech recog- nition experiments favored statistical querying. 2.3 Web collections obtained For the speech recognition...

Ngày tải lên: 22/02/2014, 02:20

... coverage and accuracy. As for the size of the optimal model, the average num- ber of the active feature set is 126 for "General- to -Specific& quot; method and 800 for "One-by-one Feature ... The "Optimal" model of 'General-to -Specific& quot; method performs best among all the models in Table 1. Especially, it outperforms the "Op- timal" model of "One-by-one ... "General-to -Specific& quot; method outperforms both the "Independent Cases" and "General Classes" models, and thus both of the case dependencies and specific sense restriction...

Ngày tải lên: 08/03/2014, 06:20

... Kikuchi, Yousuke Shinnaka and Chiori Hori. 2004. Speech- to-text and speech- to -speech summarization of spontaneous speech. IEEE Transactions on Speech and Audio Processing , 12, (4): 401 - 408. ... minimization framework for information retrieval. Information Processing & Management, 42, (1): 31 - 55. ChengXiang Zhai. Statistical language models for information retrieval . Morgan ... Development in Information Retrieval : 19 - 25. Akira Inoue, Takayoshi Mikami and Yoichi Yamashita. 2004. Improvement of speech summarization using prosodic information, In Proc. of Speech Prosody:...

Ngày tải lên: 16/03/2014, 23:20

... transcription. For example, if the ASR output contains the term sequence “… and farther home run for David forty says…” and the closed captioning contains the sequence “…another home run for David ... ability to sup- port video information retrieval. 4.3 Precision of Information Retrieval One of the most commonly used applications of ASR for video is to support information retrieval (IR). ... can also provide use- ful information for representing non-linguistic con- text. We use boosted decision trees to classify audio into segments of speech, excited _speech, cheering, and music....

Ngày tải lên: 17/03/2014, 02:20

... Johnson, 2003). Language modeling for speech could well be the first real problem for which syntactic techniques are useful. John ate the pizza on a plate with a fork . NP:plate NP:fork PP:withPP:on IN IN VB NP VP:ate Figure ... 564,895 7.78 11.9 Table 2: Results for n–best lists and n–best lattices. Table 2 shows the results for n–best list rerank- ing and word-lattice parsing of n–best lattices. We recreated the results ... system). We have performed a set of experiments on the NIST ’93 HUB–1 word -lattices. The HUB–1 is a collec- tion of 213 word -lattices resulting from an acoustic recognizer’s analysis of speech utterances....

Ngày tải lên: 17/03/2014, 06:20

... alignments for general words and the corpus in the specific domain for domain -specific words. In other words, we will adapt the word alignment information in the general domain to the specific ... word alignment in a specific domain, in which only a small-scale domain -specific corpus is available, by adapting the word alignment information in the general domain to the specific domain. ... the target word in position k. The set indicates the words aligned to the same source word k. For example, if a Chinese word in position j is connect to an English word in position i, then...

Ngày tải lên: 17/03/2014, 06:20

... sentence boundary disambiguation, part-of -speech tag- ging, stress prediction in continues speech gen- eration, etc., and proved its feasibility for select- ing and building the models with ... general- ized for a new domain with only a tiny degra- dation in performance. A potential drawback of our approach is that we require to build the feature collocation lat- tice for the whole ... might not be feasible for applications with hun- dreds of thousands of features. So one of the directions in our future work is to find effi- cient ways for a decomposition of the feature...

Ngày tải lên: 23/03/2014, 19:20

... basis for the creation of metarules for term variants. For example, the noun phrase expansion rule is4: NP -~ D: AP*N (APIPP)* (1) awe use UNIX regular expression symbols for rules and transformations. ... Optimal document- indexing vocabulary for Medline. Information Processing ~4 Management, 32(5):503-514. Strzalkowski, Tomek. 1996. Natural language infor- mation retrieval. Information Processing ... Improvement of Indexing through Variant Extraction For a better understanding of the importance of term expansion, we now compare term indexing with 28 Expansion of Multi-Word Terms for Indexing...

Ngày tải lên: 31/03/2014, 21:20

Ngày tải lên: 28/04/2014, 09:57

... patient care techniques for posterior mini-incision total hip arthroplasty. Clin Orthop Relat Res 2005, 441:104-114. 7. Procyk S: Initial results with a mini -posterior approach for total hip arthroplasty. ... Chi-square test for nominal parameters. The level of significance was fixed at p < 0.05. Institutional review board approval was obtained, and all patients gave their informed consent before participating ... blinded for the examin- ing author (A.M.) with respect to the chosen surgical approach and the radiological assessments blinded for the two assessing authors (A.M. and M.S.). Reliability for the...

Ngày tải lên: 20/06/2014, 04:20

... used for performance evaluation. Figure 13 illustrate the separability analysis results as the BD versus the feature dimension for both unimodal (speech only & video only) and multi-modal (speech ... report,” Tech. Rep., Center for Language and Speech Processing, 2000. [7] J S. Lee and C. H. Park, “Adaptive decision fusion for audio- visual speech recognition,” in Speech Recognition, Technologies and ... suitable for multiple hypothesis testing (MHT) like problems in speech processing, namely audio-visual speech recognition. These soft belief functions are then used for multi-modal speech processing...

Ngày tải lên: 21/06/2014, 05:20

Ngày tải lên: 21/06/2014, 08:20

Ngày tải lên: 21/06/2014, 20:20

Ngày tải lên: 21/06/2014, 22:20

Ngày tải lên: 22/06/2014, 00:20

Ngày tải lên: 22/06/2014, 19:20