Báo cáo khoa học: "Finding Bursty Topics from Microblogs" potx

... it 1. Since some models gave redundant bursty topics, we al- so asked one of the judges to identify unique bursty 541 topics from the ground truth bursty topics. 4.3 Evaluation In this section, ... unbelievable. Table 3: Top-5 bursty topics ranked by TimeUserLDA. The labels are manually given. The 3rd and the 4th bursty topics come from the same topic but have different...

Ngày tải lên: 07/03/2014, 18:20

... total # words in utterance distance (sec.) from start to wj distance (sec.) from wj to end distance (words) from start to wj distance (words) from wj to end is wi accented or not/ or, cliticized, ... hypotheses derived from our own observa- tions and from previous theoretical and practi- cal studies of boundary location. Our corpus for this investigation is 298 sentences...

Ngày tải lên: 08/03/2014, 07:20

... not make sense to ex- tract keyphrases from a single tweet, and if we ex- tract keyphrases from a whole tweet collection we will mix a diverse range of topics together, which makes it difficult ... 2004) to extract key- words from tweets to tag users. Topic discovery from Twitter is also related to our work (Ramage et al., 2010), but we further extract keyphrases from each topic fo...

Ngày tải lên: 17/03/2014, 00:20

... the binding pocket and 7.75 A ˚ from the T1 copper atom (Fig. 5D). Fig. 1. Sequence alignment of McoP with CotA laccase from Bacillus subtilis (1GSK) and CueO from Escherichia coli (1KV7). The ... metallo-oxidase from Aquifex aeolicus. Biochim Biophys Acta 1794, 75–83. 5 Fernandes AT, Soares CM, Pereira MM, Huber R, Grass G & Martins LO (2007) A robust metallo-oxidase from the h...

Ngày tải lên: 18/02/2014, 04:20

... manage- ment from the user and present an intuitive, user-friendly interface from which this necessary metadata can be obtained. The kineticswizard can be launched auto- matically from the instrument ... web services. Kinetic data can be exported from SABIO-RK in SBML format and experimen- tal data exported from MeMo-RK in SBRML format. N. Swainston et al. Enzyme kinetics: from in...

Ngày tải lên: 18/02/2014, 04:20

... enzymes operate near saturation and the kinase readily dissociates from the phosphorylated target (and, likewise, the phosphatase from the unphosphory- lated target), a steep threshold response, ... machinery involving multiply phosphorylated proteins allows DNA replication to start simultaneously from multiple origins of replication [20,107–110]. We have shown recently in a model of re...

Ngày tải lên: 18/02/2014, 08:20

... reverse transcription, PCR and real-time PCR mRNA was extracted from cells and tissue (obtained with local ethical permission from the Masaryk Institute ethics committee) using the Qiagen RNeasy ... After the extraction, RT-PCR was performed using the Omniscript RT kit from Qiagen (Valencia, CA, USA) and pfu polymerase from Stratagene, following the manufacturer’s suggested protocols....

Ngày tải lên: 18/02/2014, 17:20

... Sephadex G-25 and G-50 from Amersham Biosciences (GE Healthcare, Piscataway, NJ), Cleland’s reagent (dithio- threitol) from Calbiochem (San Diego, CA), and Zinquin ester from Molecular Probes ... aldehydes release zinc from isolated proteins and in cultured cells and that the released zinc affects phos- phorylation signaling and gene expression. Results Aldehydes release zinc from z...

Ngày tải lên: 19/02/2014, 06:20

... purchased from Sigma. Restriction enzymes and Taq DNA polymerase were from Invitrogen. Amicon centrifugal filter units were from Millipore while DEAE-Sephacel and Sephacryl S-200 HR was purchased from ... return of hydride from NADH to the opposite face of the keto sugar results in epimerization of the substrate and regeneration of NAD + [1]. Epimerase has been purified and characteri...

Ngày tải lên: 19/02/2014, 12:20

... purchased from Novagen (Madison, WI, USA). Restriction enzymes, modifying enzymes, and PCR enzymes were from TaKaRa Bio (Kyoto, Japan). Crotalus atrox phosphodiesterase I was purchased from Sigma ... protein agrees with that of other APases [29,33]. Discussion The SCO2299 protein from S. coelicolor The SCO2299 gene from S. coelicolor was shown to encode a bifunctional enzyme consist...

Ngày tải lên: 19/02/2014, 18:20