Artificial intelligence in diffusion MRI: enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Elektronisch E-Book |
| Sprache: | English |
| Veröffentlicht: |
Cham
Springer
[2020]
|
| Schriftenreihe: | Studies in computational intelligence
877 |
| Schlagworte: | |
| Online-Zugang: | BFB01 BTU01 FAB01 FAW01 FFW01 FHA01 FHD01 FHI01 FHM01 FHN01 FHR01 FKE01 FLA01 FWS01 FWS02 HTW01 TUM01 UBT01 UBY01 UPA01 Volltext |
| Beschreibung: | 1 Online-Ressource (xvii, 157 Seiten) Illustrationen, Diagramme |
| ISBN: | 9783030360832 |
| DOI: | 10.1007/978-3-030-36083-2 |
Internformat
MARC
| LEADER | 00000nmm a2200000zcb4500 | ||
|---|---|---|---|
| 001 | BV046283836 | ||
| 003 | DE-604 | ||
| 005 | 20200414 | ||
| 007 | cr|uuu---uuuuu | ||
| 008 | 191204s2020 |||| o||u| ||||||eng d | ||
| 020 | |a 9783030360832 |c Online |9 978-3-030-36083-2 | ||
| 024 | 7 | |a 10.1007/978-3-030-36083-2 |2 doi | |
| 035 | |a (ZDB-2-INR)9783030360832 | ||
| 035 | |a (OCoLC)1130265407 | ||
| 035 | |a (DE-599)BVBBV046283836 | ||
| 040 | |a DE-604 |b ger |e rda | ||
| 041 | 0 | |a eng | |
| 049 | |a DE-1028 |a DE-739 |a DE-1050 |a DE-860 |a DE-91 |a DE-1046 |a DE-1043 |a DE-Aug4 |a DE-898 |a DE-523 |a DE-859 |a DE-863 |a DE-862 |a DE-92 |a DE-522 |a DE-573 |a DE-M347 |a DE-703 |a DE-706 |a DE-634 | ||
| 082 | 0 | |a 006.3 |2 23 | |
| 084 | |a ST 300 |0 (DE-625)143650: |2 rvk | ||
| 084 | |a DAT 000 |2 stub | ||
| 100 | 1 | |a Shehab, Mohammad |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Artificial intelligence in diffusion MRI |b enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function |c Mohammad Shehab |
| 264 | 1 | |a Cham |b Springer |c [2020] | |
| 300 | |a 1 Online-Ressource (xvii, 157 Seiten) |b Illustrationen, Diagramme | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b c |2 rdamedia | ||
| 338 | |b cr |2 rdacarrier | ||
| 490 | 1 | |a Studies in computational intelligence |v 877 | |
| 650 | 4 | |a Computational Intelligence | |
| 650 | 4 | |a Biomedical Engineering and Bioengineering | |
| 650 | 4 | |a Artificial Intelligence | |
| 650 | 4 | |a Computational intelligence | |
| 650 | 4 | |a Biomedical engineering | |
| 650 | 4 | |a Artificial intelligence | |
| 776 | 0 | 8 | |i Erscheint auch als |n Druck-Ausgabe |z 978-3-030-36082-5 |
| 776 | 0 | 8 | |i Erscheint auch als |n Druck-Ausgabe |z 978-3-030-36084-9 |
| 776 | 0 | 8 | |i Erscheint auch als |n Druck-Ausgabe |z 978-3-030-36085-6 |
| 830 | 0 | |a Studies in computational intelligence |v 877 |w (DE-604)BV044858013 |9 877 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/978-3-030-36083-2 |x Verlag |z URL des Erstveröffentlichers |3 Volltext |
| 912 | |a ZDB-2-INR | ||
| 940 | 1 | |q ZDB-2-INR_2020 | |
| 999 | |a oai:aleph.bib-bvb.de:BVB01-031661416 | ||
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l BFB01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l BTU01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FAB01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FAW01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FFW01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FHA01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FHD01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FHI01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FHM01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FHN01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FHR01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FKE01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FLA01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FWS01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l FWS02 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l HTW01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l TUM01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l UBT01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l UBY01 |p ZDB-2-INR |x Verlag |3 Volltext | |
| 966 | e | |u https://doi.org/10.1007/978-3-030-36083-2 |l UPA01 |p ZDB-2-INR |x Verlag |3 Volltext | |
Datensatz im Suchindex
| DE-BY-FWS_katkey | 743806 |
|---|---|
| _version_ | 1806190159713009664 |
| any_adam_object | |
| author | Shehab, Mohammad |
| author_facet | Shehab, Mohammad |
| author_role | aut |
| author_sort | Shehab, Mohammad |
| author_variant | m s ms |
| building | Verbundindex |
| bvnumber | BV046283836 |
| classification_rvk | ST 300 |
| classification_tum | DAT 000 |
| collection | ZDB-2-INR |
| ctrlnum | (ZDB-2-INR)9783030360832 (OCoLC)1130265407 (DE-599)BVBBV046283836 |
| dewey-full | 006.3 |
| dewey-hundreds | 000 - Computer science, information, general works |
| dewey-ones | 006 - Special computer methods |
| dewey-raw | 006.3 |
| dewey-search | 006.3 |
| dewey-sort | 16.3 |
| dewey-tens | 000 - Computer science, information, general works |
| discipline | Informatik |
| doi_str_mv | 10.1007/978-3-030-36083-2 |
| format | Electronic eBook |
| fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>03905nmm a2200721zcb4500</leader><controlfield tag="001">BV046283836</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="005">20200414 </controlfield><controlfield tag="007">cr|uuu---uuuuu</controlfield><controlfield tag="008">191204s2020 |||| o||u| ||||||eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9783030360832</subfield><subfield code="c">Online</subfield><subfield code="9">978-3-030-36083-2</subfield></datafield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/978-3-030-36083-2</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ZDB-2-INR)9783030360832</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)1130265407</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV046283836</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">DE-1028</subfield><subfield code="a">DE-739</subfield><subfield code="a">DE-1050</subfield><subfield code="a">DE-860</subfield><subfield code="a">DE-91</subfield><subfield code="a">DE-1046</subfield><subfield code="a">DE-1043</subfield><subfield code="a">DE-Aug4</subfield><subfield code="a">DE-898</subfield><subfield code="a">DE-523</subfield><subfield code="a">DE-859</subfield><subfield code="a">DE-863</subfield><subfield code="a">DE-862</subfield><subfield code="a">DE-92</subfield><subfield code="a">DE-522</subfield><subfield code="a">DE-573</subfield><subfield code="a">DE-M347</subfield><subfield code="a">DE-703</subfield><subfield code="a">DE-706</subfield><subfield code="a">DE-634</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">006.3</subfield><subfield code="2">23</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">ST 300</subfield><subfield code="0">(DE-625)143650:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">DAT 000</subfield><subfield code="2">stub</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Shehab, Mohammad</subfield><subfield code="e">Verfasser</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Artificial intelligence in diffusion MRI</subfield><subfield code="b">enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function</subfield><subfield code="c">Mohammad Shehab</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Cham</subfield><subfield code="b">Springer</subfield><subfield code="c">[2020]</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">1 Online-Ressource (xvii, 157 Seiten)</subfield><subfield code="b">Illustrationen, Diagramme</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="1" ind2=" "><subfield code="a">Studies in computational intelligence</subfield><subfield code="v">877</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Computational Intelligence</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Biomedical Engineering and Bioengineering</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Artificial Intelligence</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Computational intelligence</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Biomedical engineering</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Artificial intelligence</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Druck-Ausgabe</subfield><subfield code="z">978-3-030-36082-5</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Druck-Ausgabe</subfield><subfield code="z">978-3-030-36084-9</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Druck-Ausgabe</subfield><subfield code="z">978-3-030-36085-6</subfield></datafield><datafield tag="830" ind1=" " ind2="0"><subfield code="a">Studies in computational intelligence</subfield><subfield code="v">877</subfield><subfield code="w">(DE-604)BV044858013</subfield><subfield code="9">877</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="x">Verlag</subfield><subfield code="z">URL des Erstveröffentlichers</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-2-INR</subfield></datafield><datafield tag="940" ind1="1" ind2=" "><subfield code="q">ZDB-2-INR_2020</subfield></datafield><datafield tag="999" ind1=" " ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-031661416</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">BFB01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">BTU01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FAB01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FAW01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FFW01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FHA01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FHD01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FHI01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FHM01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FHN01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FHR01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FKE01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FLA01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FWS01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">FWS02</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">HTW01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">TUM01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">UBT01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">UBY01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="966" ind1="e" ind2=" "><subfield code="u">https://doi.org/10.1007/978-3-030-36083-2</subfield><subfield code="l">UPA01</subfield><subfield code="p">ZDB-2-INR</subfield><subfield code="x">Verlag</subfield><subfield code="3">Volltext</subfield></datafield></record></collection> |
| id | DE-604.BV046283836 |
| illustrated | Not Illustrated |
| indexdate | 2024-08-01T14:59:25Z |
| institution | BVB |
| isbn | 9783030360832 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-031661416 |
| oclc_num | 1130265407 |
| open_access_boolean | |
| owner | DE-1028 DE-739 DE-1050 DE-860 DE-91 DE-BY-TUM DE-1046 DE-1043 DE-Aug4 DE-898 DE-BY-UBR DE-523 DE-859 DE-863 DE-BY-FWS DE-862 DE-BY-FWS DE-92 DE-522 DE-573 DE-M347 DE-703 DE-706 DE-634 |
| owner_facet | DE-1028 DE-739 DE-1050 DE-860 DE-91 DE-BY-TUM DE-1046 DE-1043 DE-Aug4 DE-898 DE-BY-UBR DE-523 DE-859 DE-863 DE-BY-FWS DE-862 DE-BY-FWS DE-92 DE-522 DE-573 DE-M347 DE-703 DE-706 DE-634 |
| physical | 1 Online-Ressource (xvii, 157 Seiten) Illustrationen, Diagramme |
| psigel | ZDB-2-INR ZDB-2-INR_2020 |
| publishDate | 2020 |
| publishDateSearch | 2020 |
| publishDateSort | 2020 |
| publisher | Springer |
| record_format | marc |
| series | Studies in computational intelligence |
| series2 | Studies in computational intelligence |
| spellingShingle | Shehab, Mohammad Artificial intelligence in diffusion MRI enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function Studies in computational intelligence Computational Intelligence Biomedical Engineering and Bioengineering Artificial Intelligence Computational intelligence Biomedical engineering Artificial intelligence |
| title | Artificial intelligence in diffusion MRI enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function |
| title_auth | Artificial intelligence in diffusion MRI enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function |
| title_exact_search | Artificial intelligence in diffusion MRI enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function |
| title_full | Artificial intelligence in diffusion MRI enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function Mohammad Shehab |
| title_fullStr | Artificial intelligence in diffusion MRI enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function Mohammad Shehab |
| title_full_unstemmed | Artificial intelligence in diffusion MRI enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function Mohammad Shehab |
| title_short | Artificial intelligence in diffusion MRI |
| title_sort | artificial intelligence in diffusion mri enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function |
| title_sub | enhanced cuckoo search algorithm with metaheuristic components for extracting the maxima of the orientation distribution function |
| topic | Computational Intelligence Biomedical Engineering and Bioengineering Artificial Intelligence Computational intelligence Biomedical engineering Artificial intelligence |
| topic_facet | Computational Intelligence Biomedical Engineering and Bioengineering Artificial Intelligence Computational intelligence Biomedical engineering Artificial intelligence |
| url | https://doi.org/10.1007/978-3-030-36083-2 |
| volume_link | (DE-604)BV044858013 |
| work_keys_str_mv | AT shehabmohammad artificialintelligenceindiffusionmrienhancedcuckoosearchalgorithmwithmetaheuristiccomponentsforextractingthemaximaoftheorientationdistributionfunction |